U.S. flag An official website of the United States government.
Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

National Institute for Occupational Safety and Health

CDC Stacks Public Health Publications

The National Institute for Occupational Safety and Health (NIOSH) conducts research and makes recommendations for preventing work-related injuries, illnesses, and deaths. For more information, visit https://www.cdc.gov/niosh/index.html.

(1)
(384)
(1095)
(1281)
(1653)
(1924)
(2674)
(2174)
(2170)
(2199)
(2025)
(2294)
(2195)
(2187)
(1953)
(1953)
(1863)
(1812)
(1891)
(1852)
(2014)
(1833)
(1770)
(1792)
(1618)
(1440)
(1339)
(1049)
(1126)
(1101)
(945)
(1158)
(1313)
(1239)
(1325)
(1190)
(1403)
(1035)
(1171)
(1174)
(1210)
(1053)
(1184)
(1312)
(1467)
(1471)
(1458)
(1275)
(1229)
(1333)
(1434)
(1233)
(1062)
(1077)
(826)
(603)
(527)
(112)
(50)
(32)
(40)
(31)
(34)
(23)
(13)
(6)
(7)
(6)
(5)
(2)
(2)
(1)
(1)
(2)
(2)
(2)
(3)
(1)
(1)
(2)
(2)
(2)
(3)
(1)
(2)
(2)
(2)
(3)
(5)
(36)
0 of 90
(1)
(590)
(12)
(2)
(133)
(1)
(72)
(2)
(14)
(1)
(182)
(57)
(5)
(49)
(36)
(4)
(7)
(1092)
(18)
(463)
(5)
(80017)
(1)
(4)
0 of 24
(2)
(5)
(933)
(765)
(2)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(900)
(258)
(3)
(2)
(2)
(1)
(3)
(1)
(6)
(1)
(1)
(98)
(2)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(5)
(2)
(1)
(1)
(9)
(3)
(1)
(2)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(67)
(1)
(3)
(1)
(1)
(1)
(3)
(1)
(1)
(1)
(3)
(58)
(8)
(6)
(1)
(3)
(1)
(1)
(1)
(2)
(5)
(1)
(1)
(1)
(1)
(1)
(1)
(6192)
(2)
(2)
(1)
(4)
(2)
(1)
(2)
(1)
(1)
(1)
(1)
(2)
(1)
(2)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(7)
(2)
(183)
(1)
(28)
(5)
(1)
(2)
(1)
(4)
(1)
(1)
(1)
(1)
(3736)
(5)
(2)
(1)
(10)
(1)
(1)
(2)
(1)
(987)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(60)
(3)
(1)
(7)
(1)
(2)
(1)
(1)
(1)
(98)
(1)
(1)
(39)
(1)
(44)
(1)
(1)
(2)
(1)
(2757)
(1)
(1)
(1)
(1)
(1)
(1)
(3)
(1)
(1)
(5)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(3)
(2)
(2)
(1)
(3)
(1)
(1)
(1)
(2)
(1)
(1)
(2)
(1)
(1)
(2)
(1)
(5)
(2)
(1988)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(2879)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(2)
(1)
(2)
(1)
(1)
(1)
(2)
(1)
(38)
(2)
(1)
(2)
(1)
(2)
(2)
(1)
(1)
(165)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(404)
(1)
(2354)
(1083)
(4)
(1818)
(2)
(2)
(1)
(1)
(1)
(3)
(2)
(1)
(1)
(5)
(1)
(1)
(1)
(2)
(1)
(238)
(1)
(7)
(35)
(1)
(1)
(1)
(1583)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(3)
(1)
(1)
(1)
(1)
(3)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(4)
(4)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(3)
(1)
(1)
(1)
(4)
(1)
(1)
(6)
(1)
(758)
(1)
(3)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(301)
(1)
(1)
(1)
(3)
(1)
(1)
(1)
(1)
(3)
(3)
(1)
(1)
(1)
(5040)
(2)
(1)
(1)
(4190)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(2686)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2160)
(1)
(254)
(1)
(1)
(1158)
(1)
(1)
(1)
(2)
(388)
(1)
(1)
(4)
(1)
(3)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(653)
(1)
(608)
(1)
(1)
(3)
(3)
(1)
(1)
(233)
(1222)
(2)
(597)
(3)
(1)
(4)
(2)
(1)
(4893)
(17)
(1)
(2)
(4)
(92)
(7)
(86)
(1)
(1)
(2)
(6)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(2823)
(1)
(135)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(3)
(1)
(16208)
(1)
(521)
(2)
(1)
(1502)
(3)
(2)
(5564)
(5883)
(26812)
(10211)
(23661)
(4371)
(3614)
(1)
(5686)
(7504)
(7289)
(5)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(3)
(1)
(1)
(9797)
(2)
(1)
(1)
(1)
(13)
(246)
(1)
(1)
(3)
(1)
(1)
(3)
(8)
(1)
(2)
(1)
(1)
(1)
(2)
(1)
(3)
(3)
(1)
(1)
(1)
(1)
(1)
(2)
(7)
(101)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(3)
(3)
(1)
(1)
(167)
(2)
(1)
(1)
(1)
(1)
(1)
(2)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(2)
(4)
(1)
(1)
(6)
(5)
(140)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(5)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(3)
(1)
(1)
(1)
(494)
(190)
(3)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(2)
(1)
(1)
(1)
(6)
(2)
(1)
(1)
(1)
(4)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(642)
(1)
(2632)
(1)
(1)
(1)
(1)
(3)
(2)
(1)
(1)
(18)
(1)
(1)
(988)
(1)
(1)
(1422)
(1)
(2)
(215)
(1)
(1)
(1)
(1899)
(2)
(1)
(1)
(3)
(2)
(3)
(1)
(5217)
(14)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(11723)
(1)
(1)
(1)
(1)
(1)
(3)
(1)
(1)
(1)
(1)
(1)
(1410)
(1)
(1)
(1)
(81)
(2)
(2)
(1)
(308)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
0 of 743
(47)
(29)
(1)
(1)
(1)
(1)
(1)
(790)
(5)
(282)
(3521)
(810)
(2061)
(6)
(1)
(3844)
(587)
(1)
(17260)
(11)
(1)
(22)
(1)
(1)
(132)
(152)
(4757)
(31)
(3)
(4)
(3)
(16)
(4)
(1)
(3)
(24)
(16)
(16)
(50)
(559)
(4)
0 of 41
(1)
(1)
(1)
(48)
(57)
(125)
(24)
(24)
(8)
(86)
(153)
(75)
(18)
(11)
(1)
(663)
(1)
(44)
(19)
(1)
(86)
(44)
(29)
(2539)
(1)
(21)
(1179)
(15)
(122)
(14)
(31)
(1)
(633)
(4)
(10)
(3)
(20)
(2811)
(38)
(174)
(7)
(8)
(4)
(2575)
(81)
(5)
(4)
(154)
(2179)
(239)
(4)
(108)
(32)
(198)
(182)
(1)
(1)
(221)
(221)
(8)
(61)
(2)
(117)
0 of 63
(68)
(6)
(1262)
(9)
(5)
(5412)
(6234)
(4)
(9027)
(7)
(19)
(15)
(44)
(32)
(38)
(27)
(74)
(216)
(4)
(160)
(75)
(6)
(27)
(6)
(3)
(109)
(5)
(3)
(738)
(26)
(11)
(4)
(6)
(2142)
(52)
(1952)
(1987)
(11)
(4551)
(3)
(9)
(62)
(328)
(7)
(747)
(7)
(5250)
(1305)
(2564)
(7)
(52)
(10)
(21)
(246)
(169)
(36)
(10)
(34)
(275)
(23)
(402)
(34)
(24)
(164)
(66)
(51)
(6)
(15)
(55)
(157)
(11)
(39)
(170)
(3236)
(60)
(4)
(16)
(81)
(5)
(225)
(157)
(41)
(88)
(5)
(238)
(4)
(4)
(265)
(15)
(992)
(5)
(1263)
(1277)
(39)
(113)
(4)
(4)
(256)
(12)
(2026)
(53)
(25)
(7)
(6)
(4)
(4)
(227)
(202)
(1875)
(5)
(208)
(4)
(14)
(26)
(4)
(6)
(233)
(116)
(23)
(547)
(362)
(371)
(6)
(153)
(116)
(19)
(1256)
(1300)
(246)
(10)
(20)
(1740)
(216)
(143)
(94)
(69)
(356)
(11)
(5)
(20)
(23)
(63)
(6)
(6)
(4)
(61)
(4)
(219)
(64)
(190)
(41)
(190)
(4)
(35)
(12)
(73)
(4)
(32)
(11)
(127)
(9)
(248)
(5)
(5)
(2130)
(1569)
(4)
(1923)
(7)
(555)
(66)
(29)
(70)
(52)
(418)
(4)
(28)
(96)
(5)
(37)
(7)
(73)
(2815)
(498)
(24)
(12)
(29)
(115)
(253)
(7)
(6)
(10)
(64)
(27)
(339)
(21)
(282)
(151)
(259)
(4)
(320)
(5)
(109)
(62)
(3900)
(3530)
(49)
(25)
(4)
(39)
(800)
(90)
(4)
(53)
(210)
(12)
(167)
(1843)
(144)
(163)
(262)
(540)
(391)
(4472)
(535)
(5)
(45)
(214)
(26)
(78)
(9)
(109)
(51)
(70)
(32)
(154)
(4)
(22)
(13)
(4)
(31)
(4)
(479)
(25)
(4)
(52)
(7)
(66)
(8)
(195)
(521)
(172)
(172)
(5)
(8)
(4)
(10)
(321)
(18)
(6)
(587)
(2002)
(19)
(165)
(5)
(673)
(44)
(33)
(34)
(73)
(683)
(4)
(303)
(361)
(311)
(85)
(4)
(327)
(38)
(7)
(8)
(33)
(4)
(50)
(251)
(4)
(186)
(4)
(5)
(34)
(34)
(56)
(12)
(8)
(10)
(173)
(7012)
(25)
(640)
(8)
(20)
(8)
(25)
(336)
(2520)
(5)
(44)
(404)
(731)
(1104)
(8)
(26)
(60)
(206)
(4)
(87)
(46)
(16)
(887)
(5)
(2352)
(5)
(370)
(6)
(49)
(396)
(52)
(312)
(1071)
(23)
(1992)
(480)
(4869)
(5)
(1377)
(7)
(7027)
(16)
(1647)
(5)
(7)
(530)
(9)
(8)
(5486)
(5)
(30)
(117)
(9)
(6)
(14)
(26)
(2418)
(47)
(64)
(13)
(37)
(4)
(72)
(5)
(13)
(5)
(8)
(24)
(85)
(4)
(4)
(4)
(861)
(186)
(6)
(7)
(472)
(111)
(254)
(18)
(772)
(2419)
(8)
(693)
(21)
(24)
(13)
(6)
(370)
(39)
(67)
(349)
(284)
(4)
(15)
(1981)
(1414)
(123)
(34)
(22)
(56)
(7)
(42)
(20)
(25)
(8)
(4)
(4)
(401)
(103)
(49)
(455)
(588)
(10)
(626)
(349)
(4)
(166)
(11)
(6)
(304)
(29)
(664)
(122)
(21)
(15)
(9)
(5)
(4)
(4)
(1216)
(43)
(653)
(212)
(5)
(57)
(139)
(75)
(65)
(18)
(116)
(5)
(16)
(4)
(4)
(6883)
(56)
(54)
(10)
(332)
(2465)
(16)
(14)
(10)
(3452)
(16)
(14)
(1501)
(5)
(5)
(7)
(11)
(8)
(171)
(945)
(1219)
(1249)
(4)
(4)
(4)
(48)
(572)
(5)
(6)
(519)
(897)
(32)
(22)
(5)
(4)
(202)
(38)
(12)
(42)
(96)
(6)
(58)
(61)
(83)
(9)
(154)
(10)
(7)
(242)
(953)
(58)
(17)
(31)
(343)
(503)
(6)
(1191)
(12)
(21)
(10)
(6)
(15)
(44)
(5)
(1612)
(4)
(7)
(32)
(1474)
(4)
(4)
(17)
(20)
(4)
(21)
(5)
(14)
(56)
(20)
(4)
(34)
(20)
(8)
(8)
(123)
(38)
(531)
(9)
(5)
(59)
(1164)
(77)
(5)
(1529)
(5)
(4)
(75)
(77)
(7)
(1403)
(418)
(5)
(134)
(5484)
(49)
(7)
(686)
(1145)
(370)
(6)
(196)
(5)
(233)
(345)
(365)
(9)
(75)
(8)
(5)
(49)
(5410)
(3941)
(4)
(8)
(9)
(60)
(4)
(131)
(8)
(21)
(124)
(4)
(363)
(10)
(241)
(4726)
(18)
(26)
(102)
(11)
(160)
(18)
(31)
(28)
(41)
(2680)
(32)
(379)
(2859)
(208)
(4)
(2738)
(842)
(1058)
(8)
(31)
(62)
(10)
(431)
(23)
(12)
(20)
(6)
(39)
(6)
(4)
(25)
(12)
(1110)
(4)
(9)
(7)
(29)
(789)
(19)
(8)
(10034)
(4)
(111)
(11)
(4)
(4)
(911)
(8)
(3868)
(6)
(9)
(75)
(7)
(4)
(3244)
(5)
(3334)
(351)
(66)
(50)
(27)
(21)
(9)
(13)
(38)
(44)
(5)
(16)
(11)
(7)
(205)
(3255)
(16)
(3286)
(861)
(127)
(210)
(84)
(174)
(66)
(54)
(40)
(74)
(171)
(40)
(111)
(5)
(40)
(24)
(2258)
(1586)
(5)
(7)
(6)
(12)
(172)
(27)
(5)
(197)
(122)
(51)
(8)
(4)
(6)
(1263)
(7)
(22)
(9709)
(41)
(38)
(28)
(79964)
(4)
(20)
(1135)
(8)
(5)
(4)
(6)
(14)
(6)
(6)
(306)
(38)
(5)
(313)
(4)
(4)
(127)
(7)
(131)
(124)
(4)
(628)
(95)
(7)
(82)
(11)
(6)
(4994)
(385)
(4)
(7)
(29)
(41)
(6465)
(5)
(10)
(218)
(36)
(5)
(102)
(156)
(4)
(15)
(89)
(52)
(31)
(93)
(6)
(4)
(8)
(6)
(456)
(29)
(75)
(11)
(4)
(5)
(7)
(12)
(738)
(9)
(178)
(518)
(202)
(10)
(4)
(40)
(56)
(21)
(49)
(8)
(8)
(4)
(14)
(31)
(28)
(50)
(1379)
(581)
(11)
(11)
(4)
(716)
(229)
(60)
(15)
(4)
(9)
(4)
(37)
(12)
(1363)
(34)
(1665)
(4)
(15)
(6)
(14)
(4)
(5)
(35)
(18)
(33)
(5)
(361)
(419)
(15)
(1371)
(1340)
(132)
(272)
(165)
(164)
(13)
(11)
(447)
(11)
(187)
(43)
(78)
(16)
(7)
(6)
(108)
(20)
(18)
(5)
(21)
(4)
(5)
(6)
(7)
(46)
(5)
(6)
(4)
(793)
(384)
(2150)
(7884)
(7246)
(8)
(8)
(5)
(7984)
(6327)
(7)
(6)
(191)
(6)
(79683)
(4846)
(12)
(9)
(6)
(56)
(4)
(5)
(4)
(79)
(1504)
(152)
(839)
(56)
(1160)
(6)
(538)
(220)
(8)
(4)
(83)
(1707)
(115)
(61)
(2398)
(390)
(860)
(7)
(747)
(623)
(296)
(381)
(5)
(990)
(15)
(13)
(27)
(1154)
(2144)
(34)
(9)
(183)
(89)
(18)
(11)
(5459)
(15)
(5)
(4)
(4)
(29)
(11)
(4)
(1629)
(125)
(4)
(166)
(4)
(180)
(145)
(51)
(63)
(166)
(52)
(34)
(4)
(106)
(3240)
(5)
(7)
(31)
(7)
(14)
(840)
(205)
(37)
(406)
(10)
(8)
(15)
(19)
(23)
(100)
(4)
(759)
(262)
(10)
(1848)
(32)
(4)
(5)
(783)
(7)
(62)
(44)
(110)
(4)
(30)
(132)
(32)
(16)
(4)
(138)
(9)
(16)
(680)
(906)
(1339)
(22)
(12)
(4)
(4)
(25)
(50)
(8)
(933)
(3138)
(4)
(115)
(720)
(54)
(454)
(6)
(596)
(7)
(7)
(31)
(66)
(6)
(305)
(62)
(23)
(31)
(359)
(5)
(124)
(4)
(708)
(4)
(98)
(3093)
(313)
(8)
(17)
(17)
(4)
(4)
(259)
(9203)
(18)
(11)
(4)
(47)
(121)
(12)
(4)
(4)
(7)
(88)
(15)
(7)
0 of 1000
(76)
(64)
(38)
(49)
(38)
(51)
(50)
(113)
(79)
(93)
(60)
(38)
(46)
(36)
(51)
(107)
(246)
(56)
(60)
(81)
(277)
(86)
(106)
(43)
(57)
(135)
(48)
(126)
(37)
(44)
(73)
(42)
(44)
(72)
(38)
(98)
(39)
(226)
(42)
(38)
(69)
(71)
(64)
(122)
(54)
(77)
(62)
(37)
(151)
(142)
(52)
(51)
(43)
(63)
(68)
(36)
(49)
(70)
(50)
(52)
(45)
(61)
(173)
(63)
(38)
(59)
(38)
(88)
(41)
(39)
(68)
(59)
(50)
(45)
(54)
(55)
(38)
(103)
(123)
(43)
(59)
(69)
(53)
(80)
(69)
(53)
(42)
(80)
(58)
(147)
(43)
(45)
(99)
(37)
(46)
(47)
(88)
(92)
(37)
(45)
(85)
(78)
(37)
(37)
(55)
(38)
(66)
(44)
(55)
(82)
(45)
(59)
(82)
(159)
(62)
(42)
(129)
(84)
(40)
(91)
(60)
(108)
(70)
(47)
(75)
(60)
(177)
(36)
(44)
(38)
(40)
(99)
(43)
(60)
(73)
(68)
(926)
(86)
(48)
(39)
(45)
(189)
(47)
(36)
(61)
(36)
(60)
(129)
(101)
(71)
(72)
(39)
(147)
(39)
(88)
(37)
(75)
(41)
(43)
(108)
(37)
(39)
(47)
(249)
(59)
(77)
(124)
(36)
(41)
(93)
(44)
(41)
(41)
(57)
(140)
(66)
(45)
(131)
(59)
(55)
(49)
(58)
(64)
(38)
(48)
(37)
(47)
(56)
(143)
(46)
(72)
(38)
(38)
(55)
(72)
(138)
(37)
(103)
(82)
(49)
(117)
(43)
(87)
(84)
(38)
(36)
(51)
(82)
(42)
(42)
(51)
(41)
(47)
(44)
(58)
(41)
(79)
(47)
(52)
(53)
(66)
(170)
(48)
(39)
(157)
(82)
(49)
(37)
(46)
(60)
(98)
(59)
(126)
(41)
(80)
(71)
(224)
(100)
(51)
(122)
(41)
(39)
(51)
(42)
(47)
(37)
(39)
(71)
(84)
(140)
(44)
(56)
(52)
(171)
(38)
(45)
(42)
(167)
(40)
(48)
(36)
(76)
(119)
(71)
(39)
(86)
(58)
(41)
(39)
(55)
(69)
(55)
(56)
(213)
(155)
(39)
(59)
(75)
(83)
(41)
(52)
(88)
(83)
(38)
(43)
(87)
(85)
(56)
(54)
(65)
(47)
(56)
(62)
(81)
(208)
(49)
(73)
(61)
(47)
(36)
(183)
(38)
(45)
(45)
(105)
(43)
(82)
(93)
(44)
(85)
(40)
(46)
(62)
(53)
(48)
(44)
(97)
(39)
(65)
(56)
(49)
(69)
(43)
(147)
(44)
(42)
(46)
(54)
(45)
(125)
(39)
(60)
(74)
(198)
(85)
(250)
(77)
(87)
(37)
(256)
(97)
(78)
(65)
(175)
(92)
(37)
(78)
(55)
(84)
(44)
(62)
(60)
(112)
(37)
(36)
(134)
(63)
(44)
(77)
(252)
(38)
(66)
(40)
(89)
(36)
(117)
(56)
(37)
(108)
(78)
(156)
(68)
(38)
(194)
(43)
(86)
(59)
(46)
(62)
(54)
(38)
(76)
(49)
(61)
(44)
(88)
(49)
(51)
(51)
(43)
(97)
(49)
(41)
(93)
(121)
(109)
(46)
(164)
(47)
(72)
(63)
(92)
(48)
(83)
(125)
(44)
(43)
(102)
(45)
(44)
(56)
(38)
(63)
(94)
(44)
(75)
(78)
(36)
(95)
(51)
(38)
(82)
(209)
(65)
(59)
(77)
(37)
(108)
(240)
(51)
(44)
(104)
(67)
(55)
(48)
(46)
(45)
(53)
(47)
(39)
(82)
(49)
(47)
(49)
(54)
(38)
(59)
(63)
(71)
(41)
(70)
(92)
(159)
(45)
(56)
(71)
(67)
(61)
(78)
(54)
(59)
(51)
(36)
(36)
(104)
(37)
(63)
(250)
(80)
(39)
(40)
(49)
(40)
(42)
(98)
(40)
(106)
(46)
(91)
(36)
(131)
(39)
(91)
(55)
(73)
(51)
(44)
(69)
(37)
(82)
(44)
(91)
(155)
(40)
(75)
(42)
(55)
(54)
(39)
(61)
(43)
(62)
(59)
(60)
(84)
(176)
(45)
(120)
(45)
(235)
(60)
(67)
(94)
(38)
(79)
(71)
(87)
(63)
(70)
(96)
(71)
(68)
(56)
(44)
(122)
(101)
(44)
(55)
(63)
(49)
(75)
(47)
(44)
(106)
(56)
(57)
(46)
(160)
(45)
(76)
(44)
(40)
(59)
(46)
(68)
(37)
(52)
(55)
(44)
(37)
(40)
(58)
(64)
(42)
(49)
(116)
(63)
(127)
(48)
(54)
(88)
(79)
(42)
(76)
(103)
(59)
(54)
(37)
(80)
(84)
(45)
(70)
(63)
(46)
(58)
(40)
(108)
(53)
(102)
(78)
(55)
(177)
(40)
(38)
(114)
(108)
(70)
(61)
(40)
(49)
(155)
(96)
(95)
(37)
(89)
(47)
(60)
(97)
(38)
(65)
(67)
(84)
(51)
(48)
(201)
(48)
(44)
(67)
(81)
(54)
(37)
(45)
(37)
(52)
(186)
(44)
(41)
(104)
(41)
(51)
(85)
(58)
(40)
(44)
(41)
(59)
(171)
(42)
(37)
(68)
(86)
(43)
(46)
(52)
(40)
(54)
(43)
(50)
(38)
(38)
(91)
(37)
(43)
(49)
(122)
(53)
(39)
(47)
(56)
(152)
(44)
(74)
(262)
(47)
(49)
(57)
(56)
(216)
(144)
(45)
(130)
(164)
(42)
(45)
(98)
(68)
(39)
(48)
(64)
(41)
(38)
(69)
(134)
(63)
(37)
(58)
(65)
(51)
(45)
(155)
(49)
(69)
(122)
(53)
(79)
(148)
(41)
(52)
(51)
(49)
(39)
(105)
(37)
(37)
(39)
(93)
(46)
(162)
(40)
(43)
(166)
(60)
(152)
(58)
(119)
(38)
(40)
(101)
(58)
(48)
(49)
(41)
(111)
(61)
(71)
(41)
(46)
(43)
(42)
(41)
(151)
(58)
(42)
(42)
(64)
(84)
(53)
(110)
(53)
(43)
(78)
(103)
(43)
(109)
(59)
(132)
(67)
(54)
(53)
(96)
(46)
(119)
(78)
(68)
(47)
(222)
(39)
(57)
(40)
(59)
(172)
(52)
(67)
(92)
(57)
(271)
(43)
(43)
(38)
(99)
(37)
(40)
(90)
(82)
(85)
(43)
(92)
(39)
(168)
(68)
(99)
(51)
(68)
(65)
(49)
(78)
(125)
(124)
(37)
(71)
(52)
(39)
(40)
(71)
(68)
(45)
(89)
(155)
(48)
(286)
(70)
(40)
(53)
(53)
(50)
(189)
(57)
(53)
(114)
(40)
(42)
(37)
(46)
(43)
(67)
(44)
(95)
(227)
(42)
(79)
(39)
(227)
(70)
(161)
(40)
(82)
(49)
(87)
(55)
(95)
(62)
(102)
(113)
(50)
(78)
(39)
(43)
(65)
(44)
(45)
(122)
(51)
(108)
(54)
(55)
(46)
(40)
(40)
(55)
(51)
(79)
(90)
(58)
(52)
(52)
(37)
(50)
(95)
(95)
(58)
(220)
(226)
(38)
(52)
(169)
(37)
(62)
(70)
(43)
(37)
(92)
(156)
(55)
(46)
(49)
(56)
(52)
(89)
(62)
(42)
(60)
(57)
(96)
(53)
(43)
(55)
(59)
(85)
(92)
(40)
(40)
(74)
(104)
(234)
(99)
(55)
(61)
(101)
(71)
(55)
(54)
(69)
(103)
(107)
(38)
(37)
(121)
(61)
(85)
(69)
(39)
(58)
(61)
(289)
(42)
(59)
(42)
(72)
(194)
(113)
(86)
(105)
(112)
(37)
(59)
(70)
(81)
(46)
(55)
(88)
(189)
(41)
(41)
(118)
(59)
(51)
(63)
(50)
(71)
(43)
(48)
(137)
(84)
(50)
(48)
(85)
(38)
(103)
(68)
(68)
(51)
(133)
(37)
(128)
(59)
(40)
(108)
(75)
(48)
(60)
(45)
(73)
(47)
(106)
(63)
(46)
(59)
(45)
(45)
(179)
(84)
(82)
(38)
(58)
(47)
(40)
(76)
(54)
(61)
(80)
(45)
(42)
(48)
(71)
(99)
(87)
(97)
(119)
(64)
(54)
(49)
(39)
(64)
(43)
(98)
(99)
(51)
(40)
(53)
(45)
(46)
(59)
(50)
(137)
(80)
(38)
(43)
(82)
(71)
(54)
0 of 1000
(1)
(2)
(1)
(1)
(11)
(1)
(3)
(1)
(2)
(1)
(2)
(1)
(1)
(1)
(1)
(64)
(1)
(65)
(6)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(7)
(5)
(1)
(2)
(1)
(1)
(3)
(1)
(69)
(85)
(2)
(125)
(117)
(270)
(1)
(1)
(55)
(1)
(7)
(1)
(1)
(1)
(3)
(2)
(1)
(1)
(1)
(1)
(1)
(6)
(1)
(2)
(1)
(21)
(1)
(1)
(1)
(1)
(2)
(67)
(1)
(1)
(3)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(9)
(1)
(1)
(3)
(2)
(3)
(1)
(1)
(1)
(1)
(1)
(1)
(4)
(2)
(1)
(1)
(1)
(49)
(1)
(1)
(7)
(3)
(5)
(1)
(1)
(5)
(3)
(1)
(1)
(1)
(1)
(1)
(2)
(57)
(48)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(2)
(1)
(2)
(1)
(1)
(1)
(4)
(15)
(2)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(605)
(1)
(1)
(2)
(12)
(77)
(52)
(1)
(8)
(2)
(8)
(35)
(9)
(2)
(1)
(4)
(1)
(1)
(1)
(6)
(5)
(105)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(2)
(1)
(2)
(1)
(1)
(31)
(1)
(1)
(1)
(3)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(31)
(2)
(2)
(7)
(1)
(3)
(1)
(19)
(8)
(1)
(1)
(1)
(1)
(4)
(2)
(4)
(1)
(1)
(1)
(1)
(20)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(3)
(1)
(1)
(1)
(1)
(14)
(14)
(5)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(220)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(5)
(1)
(3)
(23)
(1)
(1)
(1)
(2)
(2)
(2)
(134)
(1)
(1)
(1)
(2)
(2)
(1)
(230)
(1)
(1)
(11)
(1)
(2)
(13)
(2)
(1)
(1)
(1)
(29)
(2)
(21)
(21)
(1)
(1)
(4)
(246)
(52)
(1)
(1)
(1)
(217)
(1)
(1)
(1)
(1)
(2)
(1)
(5)
(3)
(1)
(1)
(228)
(49)
(53)
(1)
(210)
(1)
(187)
(2)
(184)
(47)
(47)
(1)
(1)
(4)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(2)
(1)
(1)
(35)
(1)
(1)
(4)
(1)
(1)
(1)
(1)
(1)
(2)
(3)
(1)
(1)
(1)
(9)
(1)
(1)
(1)
(6)
(4)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(53)
(1)
(1)
(3)
(14)
(8)
(1)
(1)
(1)
(1)
(1)
(1)
(8879)
(2)
(1)
(4)
(18)
(1)
(1)
(47)
(8)
(8)
(2)
(3)
(1)
(1)
(1)
(35)
(3)
(1)
(234)
(2)
(1)
(1)
(2)
(2)
(1)
(1)
(1)
(1)
(6)
(22)
(23)
(3)
(9)
(1)
(1)
(1)
(7)
(1)
(1)
(1)
(1)
(315)
(2)
(739)
(2)
(2)
(1)
(1)
(1)
(8)
(1)
(3)
(19)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(110)
(1)
(2)
(36)
(2)
(1)
(4)
(6)
(1)
(4)
(124)
(13)
(3)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(2)
(1)
(17)
(1)
(2)
(1)
(1)
(1)
(7)
(7)
(1)
(1)
(33)
(59)
(18)
(77)
(29)
(1)
(9)
(1)
(1)
(24)
(3)
(2)
(1)
(1)
(1)
(16)
(24)
(1)
(1)
(186)
(211)
(30)
(30)
(32)
(65)
(1)
(62)
(3)
(3)
(1)
(1)
(6)
(10)
(4)
(1)
(1)
(10)
(1)
(1)
(1)
(27)
(3)
(3)
(11)
(52)
(52)
(52)
(1)
(1)
(1)
(1)
(1)
(150)
(41)
(38)
(8)
(8)
(2)
(1)
(1)
(5)
(1)
(1)
(1)
(8)
(1)
(5)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(2)
(1)
(2)
(1)
(1)
(1)
(6)
(3)
(3)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(3)
(1)
(25)
(1)
(1)
(25)
(1)
(3)
(13)
(15)
(1)
(1)
(2)
(2)
(2)
(1)
(1)
(1)
(48)
(1)
(4)
(1)
(4)
(1)
(1125)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(9)
(1)
(3)
(1)
(1)
(4)
(2)
(1)
(1)
(1)
(1)
(1)
(40)
(7)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(12)
(1)
(4)
(1)
(2)
(1)
(1)
(2)
(1)
(1)
(3)
(1)
(20)
(1)
(1)
(10)
(2)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(2)
(38)
(94)
(1)
(283)
(1)
(1)
(1)
(4)
(5)
(1)
(1)
(1)
(1)
(2)
(3)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(84)
(7)
(1)
(19)
(4)
(1)
(2)
(1)
(1)
(1)
(1)
(14)
(7)
(1)
(2)
(715)
(127)
(49)
(47)
(1)
(1)
(1)
(2)
(1)
(34)
(34)
(1)
(34)
(12)
(106)
(1)
(106)
(2)
(14)
(2)
(2)
(5)
(1)
(1)
(1)
(1)
(1)
(45)
(45)
(1)
(1)
0 of 738
(1)
(205)
(21)
(1)
(114)
(129)
(679)
(92)
(186)
(66)
(1)
(185)
(1)
(8)
(168)
(2484)
(1015)
(12)
(1)
(62)
(77)
(5)
(256)
(791)
(1)
(1)
(123)
(1)
(1523)
(667)
(2372)
(260)
(1)
(8016)
(455)
(1)
(3139)
(6)
(206)
(355)
(33)
(1668)
(237)
(165)
(3)
(21)
(81)
(5262)
(1)
(5)
(51)
(116)
(4)
(27)
(96)
(2)
(1041)
(5)
(27)
(13)
(1)
(727)
(5)
(4)
(828)
(3)
(29)
(1725)
(2)
(11)
(64)
(2052)
(7)
(5)
(688)
(10)
(1)
(1)
(237)
(46)
(13)
(139)
(3)
(1)
(2)
(1)
(1170)
(6)
(2)
(1)
(5)
(3956)
(1932)
(64)
(428)
(746)
(269)
(15)
(413)
(7)
(299)
(602)
(530)
(2)
(1125)
(12)
(384)
(8)
(49)
(1246)
(192)
(37)
(86)
(1)
0 of 114
(2)
(2)
(2)
(2)
(2)
(4)
(590)
(2)
(5)
(4)
(2)
(2)
(6)
(1)
(4)
(8)
(4)
(35)
(4)
(2)
(2)
(109)
(4)
(910)
(3)
(3)
(3)
(3)
(19)
(4)
(6)
(3)
(422)
(7)
(7)
(3)
(2)
(3)
(4)
(3)
(2)
(2)
(3)
(2)
(77)
(2)
(2)
(68)
(2)
(2)
(2)
(2)
(185)
(4)
(2)
(19)
(2)
(2)
(4)
(2)
(36)
(2)
(28)
(2)
(4)
(229)
(2)
(2)
(2)
(2)
(2)
(29)
(2)
(20)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(39)
(1)
(28)
(2)
(2)
(2)
(3)
(2)
(2)
(3)
(2)
(57)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(832)
(2)
(2)
(2)
(2)
(2)
(2)
(1)
(2)
(2)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(4)
(1)
(1)
(5)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(2)
(1)
(3)
(1)
(1)
(4)
(1)
(1)
(2)
(1)
(1)
(2)
(1)
(1)
(3)
(4)
(7)
(7)
(1)
(2)
(13)
(4)
(1)
(1)
(6)
(9)
(3)
(3)
(1)
(1)
(1)
(1)
(2)
(2)
(8)
(7)
(2)
(2)
(1)
(6)
(2)
(2)
(3)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(6)
(5)
(1)
(1)
(3)
(2)
(2)
(4)
(13)
(2)
(1)
(3)
(3)
(1)
(6)
(9)
(1)
(5)
(1)
(12)
(2)
(7)
(2)
(1)
(1)
(175)
(32)
(1)
(2)
(1)
(6)
(1)
(3)
(1)
(1)
(2)
(1)
(13)
(1)
(3)
(6)
(1)
(1)
(7)
(4)
(22)
(3)
(7)
(2)
(1)
(7)
(9)
(41)
(9)
(6)
(12)
(6)
(19)
(2)
(4)
(5)
(8)
(1)
(4)
(33)
(5)
(3)
(1)
(1)
(3)
(1)
(25)
(12)
(3)
(8)
(3)
(7)
(1)
(1)
(1)
(2)
(2)
(1)
(2)
(1)
(7)
(1)
(1)
(2)
(4)
(1)
(1)
(7)
(1)
(1)
(2)
(4)
(1)
(6)
(1)
(1)
(5)
(1)
(2)
(15)
(2)
(2)
(2)
(4)
(10)
(2)
(1)
(4)
(2)
(1)
(1)
(1)
(3)
(1)
(1)
(9)
(1)
(6)
(7)
(18)
(1)
(1)
(6)
(2)
(3)
(4)
(3)
(3)
(2)
(3)
(1)
(2)
(3)
(1)
(2)
(3)
(1)
(2)
(1)
(1)
(1)
(3)
(1)
(3)
(1)
(1)
(2)
(1)
(2)
(6)
(8)
(5)
(8)
(1)
(1)
(1)
(19)
(3)
(3)
(7)
(6)
(3)
(4)
(7)
(1)
(3)
(1)
(4)
(4)
(2)
(3)
(1)
(2)
(15)
(1)
(3)
(1)
(3)
(3)
(4)
(4)
(1)
(3)
(2)
(3)
(3)
(7)
(1)
(1)
(32)
(2)
(5)
(3)
(3)
(27)
(20)
(1)
(1)
(3)
(5)
(1)
(2)
(1)
(1)
(1)
(1)
(5)
(4)
(1)
(7)
(1)
(64)
(1)
(44)
(34)
(7)
(14)
(1)
(3)
(11)
(30)
(8)
(7)
(3)
(5)
(1)
(39)
(1)
(33)
(1)
(110)
(4)
(1)
(3)
(1)
(12)
(3)
(32)
(1)
(1)
(10)
(1)
(9)
(1)
(16)
(41)
(1)
(14)
(1)
(2)
(39)
(1)
(5)
(3)
(2)
(1)
(8)
(22)
(84)
(3)
(1)
(1)
(1)
(17)
(26)
(3)
(7)
(4)
(2)
(2)
(6)
(5)
(4)
(1)
(17)
(10)
(15)
(5)
(4)
(12)
(3)
(6)
(1)
(1)
(1)
(3)
(4)
(2)
(5)
(5)
(11)
(6)
(49)
(10)
(21)
(5)
(1)
(55)
(8)
(3)
(6)
(9)
(33)
(2)
(19)
(8)
(2)
(1)
(24)
(26)
(36)
(1)
(8)
(1)
(1)
(3)
(3)
(11)
(12)
(2)
(1)
(3)
(6)
(1)
(1)
(1)
(5)
(2)
(5)
(3)
(2)
(8)
(4)
(13)
(7)
(2)
(3)
(6)
(2)
(8)
(3)
(29)
(15)
(6)
(2)
(4)
(5)
(3)
(10)
(7)
(12)
(10)
(3)
(2)
(2)
(9)
(2)
(5)
(2)
(3)
(2)
(3)
(4)
(3)
(4)
(11)
(3)
(10)
(3)
(3)
(3)
(3)
(2)
(5)
(3)
(2)
(6)
(3)
(4)
(8)
(5)
(13)
(2)
(2)
(6)
(8)
(6)
(2)
(3)
(2)
(3)
(3)
(7)
(8)
(3)
(2)
(3)
(3)
(2)
(2)
(64)
(11)
(4)
(2)
(15)
(23)
(2)
(10)
(4)
(4)
(24)
(7)
(70)
(2)
(16)
(11)
(17)
(47)
(36)
(9)
(5)
(4)
(2)
(2)
(3)
(3)
(3)
(2)
(2)
(8)
(19)
(14)
(2)
(9)
(3)
(7)
(2)
(4)
(10)
(4)
(8)
(7)
(7)
(3)
(2)
(3)
(4)
(3)
(3)
(2)
(4)
(6)
(40)
(4)
(3)
(6)
(4)
(13)
(11)
(5)
(2)
(2)
(3)
(4)
(2)
(17)
(2)
(3)
(2)
(2)
(44)
(11)
(5)
(16)
(37)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(7)
(2)
(2)
(3)
(8)
(16)
(2)
(2)
(2)
(6)
(3)
(14)
(2)
(3)
(4)
(5)
(2)
(2)
(2)
(2)
(3)
(3)
(2)
(5)
(60)
(2)
(10)
(5)
(4)
(3)
(6)
(2)
(3)
(2)
(3)
(2)
(4)
(9)
(4)
(9)
(7)
(2)
(10)
(3)
(6)
(2)
(6)
(16)
(2)
(4)
(16)
(2)
(10)
(2)
(2)
(3)
(14)
(23)
(55)
(6)
(2)
(5)
(153)
(3)
(3)
(12)
(24)
(9)
(2)
(3)
(3)
(61)
(47)
(6)
(9)
(7)
(2)
(9)
(5)
(9)
(2)
(4)
(7)
(4)
(6)
(2)
(2)
(8)
(3)
(15)
(7)
(3)
(48)
(23)
(30)
(5)
(8)
(54)
(2)
(3)
(17)
(3)
(9)
(27)
(6)
(12)
(9)
(2)
(3)
(9)
(7)
(2)
(29)
(9)
(40)
(1)
(2)
(4)
(2)
(2)
(1)
(5)
(1)
(1)
(1)
(1)
(2)
(2)
(1)
(5)
(1)
(1)
(3)
(1)
(4)
(2)
(2)
(3)
(3)
(1)
(1)
(3)
(1)
(1)
(1)
(7)
(1)
(20)
(1)
(8)
(2)
(11)
(8)
(1)
(1)
(1)
(4)
(1)
(1)
(7)
(1)
(1)
(8)
(1)
(2)
(1)
(2)
(14)
(1)
(1)
(2)
(20)
(7)
(2)
(1)
(1)
(2)
(1)
(1)
(2)
(1)
(1)
(1)
(3)
(1)
(1)
(2)
(11)
(1)
(1)
(3)
(1)
(1)
(1)
(1)
(2)
(2)
(1)
(2)
(1)
(3)
(2)
(1)
(8)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(2)
(1)
(1)
(3)
(1)
(1)
(3)
(2)
(1)
(1)
(1)
(2)
(6)
(2)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(2)
(1)
(3)
(2)
(1)
(1)
(3)
(1)
(1)
(3)
(3)
(2)
(7)
(1)
(2)
(1)
(2)
(2)
(1)
(1)
(1)
(1)
(2)
(2)
(2)
(10)
(2)
(6)
(2)
(4)
(2)
(3)
(3)
(4)
(2)
(12)
(2)
(2)
(3)
(19)
(3)
(4)
(6)
(14)
(5)
(10)
(3)
(5)
(4)
(30)
(2)
(5)
(3)
(2)
(6)
(6)
(3)
(2)
(3)
(4)
(5)
(2)
(4)
(3)
(4)
(29)
(2)
(5)
(23)
(16)
(4)
(2)
(5)
(3)
(8)
(2)
(5)
(2)
(4)
(18)
(3)
0 of 1000
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(4)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(12)
(2)
(3)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(6)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(4)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(11)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(4)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(11)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(3)
(10)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(4)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(5)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(4)
(5)
(3)
(3)
(3)
(4)
(3)
(4)
(3)
(3)
(4)
(4)
(4)
(3109)
0 of 1000
(2675)
(2)
(24)
(30)
(1)
(4)
(1)
(2508)
(1)
(118)
(16)
(4)
(28)
(5)
(56)
(142)
(372)
(76)
(261)
(89)
(98)
(557)
(236)
(2)
(3)
(4)
(1)
(7)
(514)
(1288)
(10)
(2)
(1)
(8)
(4)
(2986)
(2179)
(7)
(1)
(13)
(7)
(8)
(176)
(204)
(3)
(2)
(4)
(181)
(1)
(587)
(1)
(2)
(43)
(905)
(18)
(2)
(765)
(1)
(1)
(7)
(69)
(43)
(138)
(14)
(659)
(542)
(26)
(143)
(85)
(39)
(48)
(61)
(15)
(44)
(25)
(7)
(1715)
(135)
(4)
(2)
(1)
(374)
(1)
(497)
(8)
(5)
(18)
(3)
(33)
(3)
(1)
(147)
(5)
(68)
(5)
(193)
(19)
0 of 97
(4)
(17)
(111)
(15)
(21)
(269)
(23)
(13)
(3)
(397)
(429)
(11)
(79)
(36)
(9)
(41)
(3)
(8)
(4)
(16)
(17)
(5)
(1)
(3)
(5)
(6)
(73)
(2)
(20)
(44)
(35)
(92)
(22)
(22)
(47)
(18)
(113)
(3)
(18)
(9)
(13)
(4)
(11)
(1)
(10)
(38)
(3)
(9)
(17)
(10)
(24)
(12)
(9)
(24)
(2)
(10)
0 of 56
(456)
(3)
(14)
(173)
(887)
(392)
(40)
(2812)
(618)
(2)
(239)
(44)
(100)
(121)
(55)
(281)
(7)
(103)
(207)
(19)
(110)
(1)
(96)
(100)
(824)
(160)
(215)
(218)
(229)
(3)
(258)
(41)
(15)
(30)
(4)
(75)
(511)
(44)
(27)
(74)
(113)
(35)
0 of 42
(1)
(634)
(5715)
(1)
(6)
(6)
(301)
(19)
(2)
(2)
(208)
(38)
(1749)
(16)
(2)
(1739)
(78)
(4)
(36)
(138)
(1)
(5)
(3)
(36)
(1)
(890)
(10)
(5926)
(1)
(406)
(1)
(15)
(4)
(10)
(400)
(1)
(2)
(1268)
(8)
(713)
(1)
(8356)
(3410)
(294)
(1761)
(1)
(3)
(1002)
(83)
(1)
(32)
(1)
(190)
(1)
(189)
(2)
(23)
(2)
(5)
(1)
(282)
(280)
(5)
(33678)
(2)
(15)
(299)
(28)
(2)
(5)
(1)
(4)
(2)
(3)
(4)
(18)
(4)
(6)
(1013)
(6)
(1)
(910)
(87)
(820)
(2)
(407)
(4)
(3)
(133)
(4)
(12)
(1)
(2)
(1)
(60)
(5)
(6759)
(42)
(3)
(5765)
(116)
(1)
(13)
(238)
(1)
(47)
(1)
(3)
(4)
(2)
(16)
(14)
(421)
(279)
(1)
(330)
(293)
(31)
(17)
(174)
(2)
(72)
(1)
0 of 123
(3057)
(917)
(3720)
(342)
(449)
(354)
(835)
(3806)
(139)
(526)
(659)
(228)
(308)
(1503)
(1268)
(1018)
(540)
(635)
(269)
(447)
(1267)
(608)
(311)
(1660)
(505)
(246)
(370)
(730)
(2353)
(138)
(1042)
(144)
(411)
(370)
(376)
(306)
(605)
(532)
(233)
(1336)
(232)
(209)
(639)
(170)
(1004)
(146)
(297)
(187)
(139)
(195)
(160)
(429)
(227)
(252)
(161)
(358)
(324)
(351)
(205)
(368)
(472)
(1187)
(411)
(1077)
(176)
(222)
(247)
(254)
(1386)
(145)
(1895)
(647)
(202)
(150)
(231)
(151)
(242)
(296)
(148)
(381)
(236)
(157)
(156)
(146)
(176)
(522)
(189)
(501)
(166)
(1356)
(211)
(183)
(154)
(309)
(146)
(165)
(151)
(209)
(1008)
(341)
(149)
(502)
(187)
(248)
(144)
(1205)
(158)
(147)
(1273)
(277)
(138)
(159)
(156)
(241)
(140)
(140)
(237)
(195)
(297)
(255)
(612)
(184)
(167)
(1398)
(512)
(217)
(178)
(140)
(171)
(462)
(347)
(1037)
(186)
(456)
(264)
(294)
(422)
(594)
(403)
(177)
(356)
(158)
(484)
(257)
(413)
(534)
(199)
(141)
(143)
(376)
(673)
(198)
(539)
(319)
(385)
(196)
(212)
(694)
(383)
(230)
(259)
(301)
(1264)
(266)
(184)
(248)
(171)
(142)
(164)
(139)
(170)
(179)
(352)
(514)
(1340)
(183)
(150)
(248)
(149)
(459)
(403)
(289)
(740)
(154)
(162)
(207)
(147)
(349)
(234)
(329)
(235)
(241)
(1455)
(556)
(1443)
(294)
(303)
(1645)
(251)
(708)
(141)
(864)
(381)
(1283)
(151)
(157)
(189)
(511)
(430)
(197)
(208)
(341)
(255)
(143)
(248)
(262)
(182)
(145)
(166)
(170)
(1292)
(605)
(182)
(367)
(152)
(159)
(263)
(320)
(245)
(146)
(163)
(407)
(158)
(263)
(759)
(178)
(224)
(151)
(151)
(630)
(297)
(252)
(627)
(412)
(257)
(600)
(231)
(1088)
(461)
(562)
(228)
(162)
(530)
(1122)
(1944)
(172)
(446)
(228)
(212)
(242)
(238)
(266)
(922)
(230)
(207)
(503)
(181)
(193)
(165)
(150)
(790)
(293)
(182)
(147)
(390)
(292)
(283)
(962)
(316)
(395)
(167)
(831)
(539)
(417)
(269)
(252)
(255)
(773)
(206)
(144)
(188)
(170)
(176)
(200)
(4739)
(225)
(887)
(909)
(643)
(539)
(202)
(382)
(311)
(306)
(319)
(2117)
(203)
(292)
(170)
(238)
(220)
(2582)
(3844)
(1020)
(820)
(1345)
(176)
(2013)
(154)
(200)
(206)
(149)
(235)
(258)
(561)
(668)
(1774)
(667)
(1279)
(535)
(325)
(208)
(676)
(495)
(238)
(897)
(373)
(221)
(222)
(204)
(670)
(210)
(251)
(192)
(254)
(145)
(142)
(173)
(169)
(358)
(239)
(192)
(158)
(202)
(407)
(396)
(169)
(531)
(310)
(202)
(738)
(333)
(159)
(383)
(233)
(422)
(165)
(360)
(265)
(400)
(306)
(251)
(188)
(189)
(312)
(230)
(1053)
(773)
(184)
(159)
(195)
(376)
(217)
(1794)
(488)
(491)
(617)
(437)
(1096)
(1298)
(342)
(386)
(256)
(176)
(790)
(502)
(218)
(381)
(668)
(140)
(288)
(972)
(218)
(220)
(566)
(197)
(286)
(294)
(214)
(157)
(172)
(511)
(300)
(206)
(175)
(315)
(154)
(198)
(174)
(279)
(244)
(475)
(160)
(200)
(199)
(164)
(245)
(4694)
(214)
(153)
(156)
(226)
(194)
(227)
(428)
(204)
(576)
(142)
(248)
(442)
(215)
(358)
(473)
(506)
(159)
(188)
(202)
(262)
(171)
(252)
(949)
(215)
(181)
(195)
(307)
(180)
(395)
(444)
(149)
(215)
(314)
(565)
(406)
(348)
(655)
(150)
(7043)
(4694)
(2132)
(297)
(564)
(427)
(169)
(184)
(248)
(282)
(307)
(596)
(169)
(138)
(223)
(2391)
(323)
(1058)
(160)
(815)
(418)
(321)
(157)
(313)
(228)
(246)
(140)
(207)
(158)
(213)
(139)
(167)
(162)
(278)
(254)
(295)
(156)
(753)
(516)
(436)
(780)
(1115)
(255)
(675)
(658)
(161)
(231)
(158)
(445)
(242)
(283)
(213)
(385)
(351)
(267)
(292)
(275)
(144)
(163)
(284)
(148)
(256)
(1140)
(256)
(391)
(180)
(148)
(257)
(310)
(162)
(465)
(539)
(201)
(524)
(170)
(267)
(255)
(147)
(212)
(197)
(256)
(2622)
(230)
(185)
(888)
(147)
(373)
(283)
(270)
(235)
(181)
(165)
(620)
(149)
(140)
(154)
(175)
(174)
(606)
(239)
(165)
(140)
(159)
(542)
(308)
(168)
(166)
(928)
(175)
(178)
(772)
(630)
(2585)
(225)
(996)
(160)
(2420)
(190)
(232)
(166)
(534)
(538)
(419)
(443)
(362)
(153)
(1054)
(1105)
(284)
(340)
(540)
(183)
(487)
(799)
(970)
(281)
(146)
(159)
(245)
(468)
(925)
(1528)
(755)
(272)
(456)
(142)
(317)
(346)
(1279)
(192)
(211)
(192)
(163)
(306)
(291)
(175)
(5912)
(793)
(163)
(1476)
(2180)
(1706)
(706)
(1626)
(154)
(690)
(198)
(237)
(691)
(511)
(348)
(184)
(356)
(205)
(797)
(560)
(155)
(360)
(681)
(665)
(3598)
(1954)
(1795)
(606)
(287)
(234)
(779)
(173)
(202)
(152)
(1285)
(192)
(396)
(464)
(326)
(259)
(139)
(138)
(334)
(207)
(510)
(297)
(172)
(337)
(151)
(647)
(197)
(147)
(432)
(603)
(783)
(1072)
(1668)
(368)
(441)
(468)
(567)
(342)
(153)
(147)
(212)
(180)
(168)
(176)
(165)
(382)
(139)
(330)
(788)
(244)
(139)
(2237)
(206)
(160)
(205)
(332)
(141)
(251)
(167)
(182)
(795)
(1882)
(254)
(936)
(770)
(395)
(258)
(203)
(146)
(141)
(160)
(198)
(403)
(161)
(180)
(451)
(264)
(178)
(284)
(640)
(359)
(217)
(286)
(501)
(206)
(145)
(297)
(595)
(192)
(153)
(288)
(158)
(200)
(235)
(334)
(212)
(151)
(149)
(268)
(888)
(158)
(795)
(489)
(214)
(251)
(205)
(157)
(321)
(889)
(1260)
(197)
(262)
(477)
(689)
(338)
(345)
(222)
(197)
(399)
(372)
(172)
(179)
(193)
(403)
(349)
(283)
(438)
(872)
(597)
(808)
(339)
(820)
(2764)
(189)
(141)
(149)
(456)
(284)
(152)
(886)
(238)
(1381)
(755)
(509)
(207)
(331)
(265)
(242)
(217)
(420)
(435)
(181)
(274)
(259)
(139)
(274)
(177)
(187)
(863)
(424)
(452)
(934)
(240)
(156)
(346)
(202)
(1075)
(500)
(749)
(2982)
(393)
(151)
(213)
(193)
(200)
(755)
(2266)
(3408)
(257)
(489)
(2350)
(256)
(171)
(154)
(241)
(372)
(233)
(177)
(1045)
(182)
(210)
(193)
(2894)
(310)
(2134)
(3339)
(1485)
(158)
(2408)
(1326)
(1082)
(215)
(1102)
(358)
(805)
(1383)
(448)
(348)
(325)
(1464)
(310)
(745)
(191)
(146)
(142)
(309)
(414)
(616)
(199)
(233)
(164)
(232)
(210)
(860)
(219)
(352)
(449)
(325)
(257)
(303)
(254)
(339)
(713)
(414)
(147)
(216)
(263)
(226)
(194)
(240)
(177)
(298)
(580)
(201)
(629)
(484)
(246)
(589)
(209)
(327)
(696)
(3486)
(1123)
(298)
(934)
(198)
(193)
(139)
(1813)
(156)
(1275)
(489)
(258)
(305)
(237)
(157)
(258)
(262)
(144)
(139)
(285)
(475)
(885)
(415)
(353)
(206)
(152)
(287)
(138)
(1270)
(633)
(624)
(3803)
(286)
(210)
(3632)
(928)
(329)
(459)
(593)
(244)
(433)
(160)
(451)
(1675)
(733)
(613)
(311)
(468)
(144)
(411)
(151)
(1270)
(240)
(199)
(904)
(208)
(375)
(245)
(318)
(163)
(146)
(178)
(183)
(265)
(233)
(222)
(159)
(139)
(179)
(224)
(184)
(314)
(336)
(162)
(2991)
(1921)
(1555)
(144)
(3037)
(255)
(1869)
(236)
(1775)
(3135)
(2060)
(2126)
(180)
(914)
(4162)
(946)
(371)
(196)
(472)
(173)
(506)
(1577)
(247)
(169)
(431)
(308)
(625)
(588)
(336)
0 of 1000
(1)
(1)
(1)
0 of 3
Showing 1081 - 1100 of 82805 results
  • Contribution of Individual Support Components to Roof Stability in a Longwall Gateroad
    Contribution of Individual Support Components to Roof Stability in a Longwall Gateroad
    Khademian Z ;
    Sears M
    2024/04/01 | Mining Publications
    According to the 2010-2019 Mine Safety and Health Administration (MSHA) accident report database, 91% of reported ground control accidents in US longwall mines were caused by roof instability. Gateroads are subjected to significant changes in loading conditions from the development to the longwall abutment loading phases. When combined with thinly ...
    Public Domain
  • NIOSH Bibliography of Communication and Research Products 2023
    NIOSH Bibliography of Communication and Research Products 2023
    Lechliter, John ;
    Hamilton, Cheryl L.
    2024/04/01 | NIOSH Numbered Publications
    The NIOSH Bibliography of Communication and Research Products 2023 showcases the institute's comprehensive approach to addressing diverse occupational safety and health challenges across industries. NIOSH's research and communication efforts in 2023 focused on an array of pressing issues affecting workers, including these research highlights: Occup ...
    Public Domain
  • Impact of Shiftwork on Retinal Vasculature Diameters over a 5Year Period A Preliminary Investigation Using the BCOPS Study Data
    Impact of Shiftwork on Retinal Vasculature Diameters over a 5-Year Period: A Preliminary Investigation Using the BCOPS Study Data
    Charles LE ;
    Gu JK
    2024/04/01 | National Institute for Occupational Safety and Health (NIOSH)
    Our aim was to investigate the impact of shiftwork on changes in central retinal arteriolar equivalent (CRAE), a measure of arteriolar width, and central retinal venular equivalent (CRVE), a measure of venular width, over five years. The participants were 117 officers (72.7% men) examined at the first (2011-2014) and second (2015-2019) follow-up ex ...
  • Systemic and Immunotoxicity Induced by Topical Application of Perfluorohexane Sulfonic Acid PFHxS in a Murine Model
    Systemic and Immunotoxicity Induced by Topical Application of Perfluorohexane Sulfonic Acid (PFHxS) in a Murine Model
    Anderson, Stacey E. ;
    Cooper MP
    2024/04/01 | National Institute for Occupational Safety and Health (NIOSH)
    Per- and polyfluoroalkyl substances (PFAS) are a large group of stable synthetic surfactants that are incorporated into numerous products for their water and oil resistance and have been associated with adverse health effects. The present study evaluated the systemic and immunotoxicity of sub-chronic 28- or 10-day dermal exposure of PFHxS (0.625-5% ...
    Public Domain
  • Paid Sick Leave and SelfReported Depression and Anxiety Evidence from a Nationally Representative Longitudinal Survey
    Paid Sick Leave and Self-Reported Depression and Anxiety: Evidence from a Nationally Representative Longitudinal Survey
    Asfaw A
    2024/04/01 | National Institute for Occupational Safety and Health (NIOSH)
    Introduction: The objective of this study was to explore the association between access to paid sick leave (AtPSL) and self-reported feelings of depression and anxiety in a nationally representative U.S. working population. Methods: In 2023, this study examined data from the 2019-2020 Longitudinal National Health Interview Survey. A Generalized Lin ...
    Public Domain
  • Equivalency of PDM3700 and PDM3600 Dust Monitors
    Equivalency of PDM3700 and PDM3600 Dust Monitors
    Cauda, Emanuele G. ;
    Colinet, Jay F.
    2024/04/01 | Mining Publications
    The PDM3600 and PDM3700 are two closely related person-wearable dust monitors manufactured by Thermo Fisher Scientific. Both are based on tapered element oscillating microbalance technology and provide nearly real-time, mass-based readings of respirable dust concentrations. From a monitoring perspective, the primary difference between the models is ...
    Public Domain
  • FullScale Demonstration and Performance Evaluation of a Hybrid GeopolymerBiopolymer Cementitious Material Developed for Pumpable Roof Supports in Underground Mines
    Full-Scale Demonstration and Performance Evaluation of a Hybrid Geopolymer/Biopolymer Cementitious Material Developed for Pumpable Roof Supports in Underground Mines
    Batchler, Timothy ;
    Nikvar-Hassani A
    2024/04/01 | Mining Publications
    Recently, a new hybrid geopolymer/biopolymer (GP/BP) cementitious material was developed for improving the performance of pumpable roof supports in underground mines. This study demonstrates the application of the hybrid GP/BP cementitious material and validates its effectiveness in full-scale. In this regard, eight (8) full-size (0.61 m diameter a ...
    Public Domain
  • Medically Attended Suicidality in Youth Who Live on Farms
    Medically Attended Suicidality in Youth Who Live on Farms
    Berg RL ;
    Burke RR
    2024/04/01 | National Institute for Occupational Safety and Health (NIOSH)
    Suicides are increasing in U.S. youth, particularly in rural areas. The influence of farming, however, is unclear, as suicide rates are higher in individual adult farm workers, but lower in farming-reliant counties. Early recognition of suicidality (suicidal ideation, intent, or attempt) is a key element of prevention, but there are no prior studie ...
  • An InField Assessment of the PALP Device in Four Different Real Working Conditions A Performance Evaluation in Particulate Matter Monitoring
    An In-Field Assessment of the P.ALP Device in Four Different Real Working Conditions: A Performance Evaluation in Particulate Matter Monitoring
    Borghi F ;
    Campagnolo D
    2024/04/01 | Mining Publications
    This study aimed to assess the performance, in terms of precision and accuracy, of a prototype (called "P.ALP"-Ph.D. Air Quality Low-cost Project) developed for monitoring PM2.5 concentration levels. Four prototypes were co-located with reference instrumentation in four different microenvironments simulating real-world and working conditions, namel ...
    Public Domain
  • 32YearOld Driver Suffers Fatal Heart Attack at Fire Station North Carolina
    32-Year-Old Driver Suffers Fatal Heart Attack at Fire Station — North Carolina
    Welch, T. J. ;
    Harrison, Robert
    2024/04/01 | Fire Fighter Fatality Investigation and Prevention Program (FFFIPP)
    Line of Duty Death ReportOn May 30, 2022, a 32-year-old male firefighter (Driver) suffered a fatal heart attack during his sleep at the fire station. On May 31, 2022, the father of the Driver drove to the volunteer fire station after multiple text messages to his son went unanswered. The father arrived at the station and met with the captain on dut ...
    Public Domain
  • Evaluation of Disposable Protective Garments Against Epoxy Resin Permeation and Penetration from AntiCorrosion Coatings
    Evaluation of Disposable Protective Garments Against Epoxy Resin Permeation and Penetration from Anti-Corrosion Coatings
    Bello A ;
    Bello D
    2024/04/01 | National Institute for Occupational Safety and Health (NIOSH)
    Introduction: Epoxy-based resin formulations are a frequent cause of allergic and irritant contact dermatitis in the construction and painting industries. Cases of epoxy resin contact dermatitis continue to persist across many sectors and are likely attributable to the growing use of epoxy products, including epoxy-based anti-corrosion coatings and ...
  • NIOSH Science and Service Awards 2024
    NIOSH Science and Service Awards 2024
    National Institute for Occupational Safety and Health
    April 2024 | National Institute for Occupational Safety and Health (NIOSH)
    NIOSH_Science_Awards_2024.pdf
    Public Domain
  • NonFatal WorkRelated Farm Injuries Occurring to Michigan Adults and Youths
    Non-Fatal Work-Related Farm Injuries Occurring to Michigan Adults and Youths
    Harduar-Morano, Laurel ;
    Rosenman, Kenneth D.
    2024/04/01 | National Institute for Occupational Safety and Health (NIOSH)
    Farming is one of the top industries in Michigan and has the highest fatality rate. National sources of non-fatal farm injuries underestimate the burden, especially among children. In this paper, we provide a more accurate estimate of non-fatal farm injuries in Michigan by using an ongoing multi-source surveillance system. Michigan's farm-injury su ...
  • Tractors Trees and Rollover Protective Structures A Cause for Concern
    Tractors, Trees, and Rollover Protective Structures: A Cause for Concern
    Gorucu S ;
    Johnson A
    2024/04/01 | National Institute for Occupational Safety and Health (NIOSH)
    Injury and fatality events that are caused by tree work and tractor-related activities contribute to the already elevated rates of work-related injuries in the agriculture and logging sectors. This brief report highlights the circumstances surrounding these events, as well as a number of surveillance sources that identify the extent to which they c ...
  • Safety and Injury of USCertified Organic Crop Producers in the Southwest Region
    Safety and Injury of US-Certified Organic Crop Producers in the Southwest Region
    Casanova V ;
    Guldan S
    2024/04/01 | National Institute for Occupational Safety and Health (NIOSH)
    Objectives: Literature on occupational risks among organic farmers is scarce. This study explored safety practices and non-fatal injuries among organic producers, and the role of sociodemographic, work, and farm characteristics on safety and injury. Methods: Cross sectional survey of certified organic crop producers in the Southwest (SW) region of ...
  • NIOSH eNews Volume 21 Number 12 April 2024
    NIOSH eNews: Volume 21, Number 12, April 2024
    National Institute for Occupational Safety and Health
    April 2024 | NIOSH eNews
    No Description
    Supporting Files Public Domain
  • Perceived Benefits Barriers Perceptions and Readiness to Use Exoskeletons in the Construction Industry Differences by Demographic Characteristics
    Perceived Benefits, Barriers, Perceptions, and Readiness to Use Exoskeletons in the Construction Industry: Differences by Demographic Characteristics
    Akanmu A ;
    Barr A
    2024/04/01 | National Institute for Occupational Safety and Health (NIOSH)
    Exoskeletons (EXOs) are a promising wearable intervention to reduce work-related musculoskeletal disorder risks among construction workers. However, the adoption of EXOs may differ with demographic characteristics. Survey data (n = 361) were collected from construction industry stakeholders and a summation score method was used to summarize respond ...
  • EstablishmentLevel Safety Analytics A Scoping Review
    Establishment-Level Safety Analytics: A Scoping Review
    Açikgöz Y ;
    Bergman S
    2024/04/01 | National Institute for Occupational Safety and Health (NIOSH)
    The use of data analytics has seen widespread application in fields such as medicine and supply chain management, but their application in occupational safety has only recently become more common. The purpose of this scoping review was to summarize studies that employed analytics within establishments to reveal insights about work-related injuries ...
    Public Domain
  • Advancing Geotechnical Analysis with OctreeBased Processing VoxelLevel Integration of Mobile Laser Scanning Data Geological Models and Microseismic Data
    Advancing Geotechnical Analysis with Octree-Based Processing: Voxel-Level Integration of Mobile Laser Scanning Data, Geological Models, and Microseismic Data
    Brune, Jürgen F. ;
    Fahle L
    2024/04/01 | National Institute for Occupational Safety and Health (NIOSH)
    This study introduces an enhanced octree-based framework for integrated geotechnical analysis, combining geological, microseismic, and Mobile Laser Scanning (MLS)-based change detection data. Our approach leverages efficient statistical inference-based change detection techniques and additional octree data structures, enabling voxel-level data inte ...
  • Infections Including SARSCoV2 as Triggers for Vocal Cord Dysfunction
    Infections Including SARS-CoV-2 as Triggers for Vocal Cord Dysfunction
    Luedders J ;
    May SM
    2024/04/01 | National Institute for Occupational Safety and Health (NIOSH)
    Postinfection syndrome has been suggested as a trigger for vocal cord dysfunction, but to date, there have been little data supporting this observation. This study suggests a role for respiratory infectious etiologies, including severe acute respiratory syndrome coronavirus 2, in the development of vocal cord dysfunction. [Description provided by N ...
1081 - 1100 / 82805