Detection Of Sprague Dawley Sperm Using Matching Method.

Cross correlation algorithm is the common method for image matching technique. In this paper, an expert system based on cross correlation is designed to reduce the workload of pathologist and improve the screening technology in medical field

Pengklasifikasian Sperma Normal Dan Abnormal Daripada Suspensi Sperma Tikus Sprague Dawley [TK1-9971]

Sehingga kini, proses pengesanan sperma masih dilakukan secara manual. Walaupun keputusan yang diperolehi berkualiti, namun masih lagi terdapat kekangan. As of now, the analysis of sperm such as counting and detection processes are still operated manually. Even though the results obtained are of high quality, errors still emerge. False detection in sperm analysis must be minimized as possible

Toxicological profile for nitrobenzene : draft for public comment : April 2022

VERSION HISTORYDate DescriptionApril 2022 Draft for public comment toxicological profile releasedDecember 1990 Final toxicological profile releasedtp132.pdf20221138

Toxicological profile for 1-Bromopropane

A Toxicological Profile for 1-Bromopropane, Draft for Public Comment was released in January 2016. This edition supersedes any previously released draft or final profile.Chemical manager(s)/author(s): Nickolette Roney, Melanie Buser, Susan Zells Ingber, ATSDR, Division of Toxicology and Human Health Sciences, Atlanta, GA; Fernando Llados, Peter McClure, Kimberly Zaccaria, Courtney Hard, SRC, Inc., North Syracuse, NY.tp209.pd

IDENTIFIKASI SPERMA SAPI NORMAL DAN ABNORMAL MENGGUNAKAN ALGORITMA JARINGAN SARAF TIRUAN

Analisis spermatozoa normal dan abnormal telah dilakukan berdasarkan fitur ukuran, yaitu panjang dan lebar kepala, leher serta panjang ekor. Namun, spermatozoa normal dan abnormal juga tergantung pada bentuknya. Oleh karena itu, Penelitian ini bertujuan mengidentiffikasi sperma sapi normal dan abnormal menggunakan algoritma jaringaan saraf tiruan berdasarkan fitur bentuk. Objek penelitian adalah citra sperma sapi yang didapatkan dari website University of WisconsinMadison departemen of animal sciences Amerika Serikat yang terdiri dari 30 citra sperma sapi normal dan 30 citra sperma sapi abnormal. Metode segmentasi citra untuk memisahkan spermatozoa dari latarnya. Mendapatkan deteksi tepi menggunakan metode pendeteksi tepi Canny. Tepi Canny ini merupakan tahap awal dalam pengkodean rantai menggunakan metode freeman chain code. Kode rantai digunakan untuk mendapatkan ekstraksi fitur denga Elliptical Fourier Descriptor yang berkaitan dengan koefisien harmonik fourier ke-n yaitu , , dan . Koefisien harmonik fourier ini digunakan untuk identifikasi sperma sapi normal dan abnormal menggunakan algoritma jaringan saraf tiruan. Hasil identifikasi dari tiga kali pengujian yang dilakukan menunjukan akurasi terbaik pada harmonik fourier sama dengan 6 (N=6), yaitu sebesar 80% dengan demikian fitur bentuk dapat digunakan untuk mengidentifikasi sperma sapi norma dan abnormal. Kata kunci: sperma sapi, elliptical fourier descriptor, kode rantai, jaringan saraf tiruan

Addendum to the Toxicological profile for trichloroethylene

cdc:6304This addendum to the Toxicological Profile for Trichloroethylene supplements the profile that was released in 1997.Toxicological profiles are developed in response to the Superfund Amendments and Reauthorization Act (SARA) of 1986 which amended the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA or Superfund). CERCLA mandates that the Administrator of ATSDR prepare toxicological profiles on substances on the CERCLA Priority List of Hazardous Substances and that the profiles be revised \u201cno less often than once every three years\u201d. CERCLA further states that the Administrator will \u201cestablish and maintain inventory of literature, research, and studies on the health effects of toxic substances\u201d [Title 42, Chapter 103, Subchapter I, \ua7 9604 (i)(1)(B)].The purpose of this addendum is to provide, to the public and federal, state, and local agencies a non-peer reviewed supplement of the scientific data that were published in the open peerreviewed literature since the release of the profile in 1997.Chapter numbers in this addendum coincide with the Toxicological Profile for Trichloroethylene (1997). This document should be used in conjunction with the profile. It does not replace the profile.tce_addendum.pdf2013609

Toxicological profile for polybrominated diphenyl ethers (PBDEs)

A Toxicological Profile for Polybrominated Diphenyl Ethers, Draft for Public Comment was released in September 2015. This edition supersedes any previously released draft or final profile

Manganese

"September 2012."A Toxicological Profile for Manganese, Draft for Public Comment was released in September 2008. This edition supersedes any previously released draft or final profile.Chemical manager(s)/author(s): Malcolm Williams, G. Daniel Todd, Nickolette Roney, Jewell Crawford, Charleton Coles, ATSDR, Division of Toxicology and Human Health Sciences (proposed), Atlanta, GA; Peter R. McClure, Joan D. Garey, Kimberly Zaccaria, Mario Citra, SRC Inc. (formerly known as Syracuse Research Corporation), North Syracuse, NY.Also available via the World Wide Web as an Acrobat .pdf file (9.6 MB, 556 p.).Includes bibliographical references (p. 443-499) and index

Toxicological profile for chlorinated dibenzo-p-dioxins : (Update)

prepared by Research Triangle Institute ; prepared for U.S. Department of Health and Human Services, Public Health Service, Agency for Toxic Substances and Disease Registry."Under Contract No. 205-93-0606."--T.b."December 1998."Also available via the World Wide Web (accessed 2009 September 30).Includes bibliographical references (p. 543-672)

Health effects of occupational exposure to silver nanomaterials

"Nanoscale silver particles are some of the most widely used nanomaterials in commerce, with numerous uses in consumer and medical products. Workers who produce or use silver nanomaterials are potentially exposed to those materials in the workplace. Previous authoritative assessments of occupational exposure to silver did not account for particle size. The National Institute for Occupational Safety and Health (NIOSH) assessed potential health risk from occupational exposure to silver nanomaterials by evaluating more than 100 studies of silver nanomaterials in animals or cells. In studies that involved human cells, silver nanomaterials were associated with toxicity (cell death and DNA damage) that varied according to the size of the particles. In animals exposed to silver nanomaterials by inhalation or other routes of exposure, silver tissue concentrations were elevated in all organs tested. Exposure to silver nanomaterials in animals was associated with decreased lung function, inflamed lung tissue, and histopathological (microscopic tissue) changes in the liver and kidney. In the relatively few studies that compared the effects of exposure to nanoscale or microscale silver, nanoscale particles had greater uptake and toxicity than did microscale particles. To date, researchers have not reported health effects in workers exposed to silver nanomaterials. To assess the risk of adverse health effects from occupational exposure, NIOSH evaluated the data from two published subchronic (intermediate duration) inhalation studies in rats. These studies revealed lung and liver effects that included early-stage lung inflammation and liver bile duct hyperplasia. NIOSH researchers used the data from these studies to estimate the dose of silver nanoparticles that caused these effects in rats. They then calculated the corresponding dose that would be expected to cause a similar response in humans, accounting for uncertainties in those estimates. From this evaluation, NIOSH derived a recommended exposure limit (REL) for silver nanomaterials (<100 nm primary particle size) of 0.9 micrograms per cubic meter (microg/m3) as an airborne respirable 8-hour time-weighted average (TWA) concentration. In addition, NIOSH continues to recommend a REL of 10 microg/m3 as an 8-hour TWA for total silver (metal dust, fume, and soluble compounds, as Ag). NIOSH further recommends the use of workplace exposure assessments, engineering controls, safe work procedures, training and education, and established medical surveillance approaches to protect workers." - NIOSTHIC-2NIOSHTIC no. 20062694Suggested citation: NIOSH [2021]. Current Intelligence Bulletin 70: health effects of occupational exposure to silver nanomaterials. By Kuempel E, Roberts JR, Roth G, Dunn KL, Zumwalde R, Drew N, Hubbs A, Trout D, and Holdsworth G. Cincinnati, OH: U.S. Department of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, DHHS (NIOSH) Publication No. 2021-112, https://doi. org/10.26616/NIOSHPUB20211122021-112.pdf?id=10.26616/NIOSHPUB202111220211175