scholarly journals From e-voucher to genomic data: Preserving archive specimens as demonstrated with medically important mosquitoes (Diptera: Culicidae) and kissing bugs (Hemiptera: Reduviidae)

PLoS ONE ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. e0247068
Author(s):  
Silvia Andrade Justi ◽  
John Soghigian ◽  
David B. Pecor ◽  
Laura Caicedo-Quiroga ◽  
Wiriya Rutvisuttinunt ◽  
...  

Scientific collections such as the U.S. National Museum (USNM) are critical to filling knowledge gaps in molecular systematics studies. The global taxonomic impediment has resulted in a reduction of expert taxonomists generating new collections of rare or understudied taxa and these large historic collections may be the only reliable source of material for some taxa. Integrated systematics studies using both morphological examinations and DNA sequencing are often required for resolving many taxonomic issues but as DNA methods often require partial or complete destruction of a sample, there are many factors to consider before implementing destructive sampling of specimens within scientific collections. We present a methodology for the use of archive specimens that includes two crucial phases: 1) thoroughly documenting specimens destined for destructive sampling—a process called electronic vouchering, and 2) the pipeline used for whole genome sequencing of archived specimens, from extraction of genomic DNA to assembly of putative genomes with basic annotation. The process is presented for eleven specimens from two different insect subfamilies of medical importance to humans: Anophelinae (Diptera: Culicidae)—mosquitoes and Triatominae (Hemiptera: Reduviidae)—kissing bugs. Assembly of whole mitochondrial genome sequences of all 11 specimens along with the results of an ortholog search and BLAST against the NCBI nucleotide database are also presented.

2018 ◽  
Vol 18 (3) ◽  
Author(s):  
Camila Fernanda Moser ◽  
Fernanda Rodrigues de Avila ◽  
Roberto Baptista de Oliveira ◽  
Juliano Morales de Oliveira ◽  
Márcio Borges-Martins ◽  
...  

Abstract This work aimed to catalog the species of reptiles of the Sinos River Basin based on records from scientific collections and data collected in the field. We recorded 65 species, including 46 snakes, nine lizards, five turtles, four amphisbaenians and one caiman. Snakes composed most of the recorded specimens (91.3%), and the three most representative are venomous and of medical importance. The most urban region of the basin (Lowland) has the highest number of records. This fact may be a reflection of the high human population density in this region, which would have favored the encounter of specimens and their sending to scientific collections and research centers. It is worth highlighting that most species with few specimens in the collections are also rarely observed in the wild, such as Clelia hussani and Urostrophus vautieri. This observation makes it feasible that these populations are small or that they are declining.


2020 ◽  
Author(s):  
Aaron J Moss ◽  
Cheskie Rosenzweig ◽  
Jonathan Robinson ◽  
Leib Litman

To understand human behavior, social scientists need people and data. In the last decade, Amazon’s Mechanical Turk (MTurk) emerged as a flexible, affordable, and reliable source of human participants and was widely adopted by academics. Yet despite MTurk’s utility, some have questioned whether researchers should continue using the platform on ethical grounds. The brunt of their concern is that people on MTurk are financially insecure, subjected to abuse, and earning inhumane wages. We investigated these issues with two random and representative surveys of the U.S. MTurk population (N = 4,094). The surveys revealed: 1) the financial situation of people on MTurk mirrors the general population, 2) the vast majority of people do not find MTurk stressful or requesters abusive, and 3) MTurk offers flexibility and benefits that most people value above more traditional work. In addition, people reported it is possible to earn about 9 dollars per hour and said they would not trade the flexibility of MTurk for less than 25 dollars per hour. Altogether, our data are important for assessing whether MTurk is an ethical place for behavioral research. We close with ways researchers can promote wage equity, ensuring MTurk is a place for affordable, high-quality, and ethical data.


2020 ◽  
Vol 9 (30) ◽  
Author(s):  
James C. Fulton ◽  
Jose C. Huguet-Tapia ◽  
Stephanie M. Adams ◽  
Nicholas S. Dufault ◽  
Tania Quesada ◽  
...  

ABSTRACT Here, we announce the draft genome sequences of three Fusarium circinatum isolates that were used to inoculate slash pines (Pinus elliottii) at the U.S. Forest Service Resistance Screening Center in Asheville, North Carolina. The genomes of these isolates were similar to other publicly available genomes, with average nucleotide identity values of >0.98.


Author(s):  
Jane H. Hong

Drawing from U.S. and Philippine archives, this chapter places Filipina/o advocates in conversation with Filipina/o Americans and their allies in the 1940s campaign to pass a Philippine citizenship bill. Philippine officials took up the legislative cause in order to prepare for what they feared would be the catastrophic financial costs of national independence from U.S. colonial rule. They hoped to cultivate Filipina/o Americans as a reliable source of remittances and other support sent from the United States to the islands. Manila’s role in the Washington-based naturalization campaign thus exemplified Philippine officials’ instrumental understanding of the U.S. citizenship bill as a means to achieve their own national goals. It also reflected their flexible view of national citizenship. Through their support of naturalization rights, Manila officials sought to inculcate in Filipina/o Americans a sense of responsibility to the islands that transcended a formal legal status alone. Viewed from Asia, then, Manila’s campaigning for the Luce-Celler bill can be seen as an act of Philippine state-building intended to safeguard and promote the islands’ economic welfare and stability after independence.


2018 ◽  
Vol 6 (26) ◽  
Author(s):  
Jayanthi Gangiredla ◽  
Tammy J. Barnaba ◽  
Mark K. Mammel ◽  
David W. Lacher ◽  
Christopher A. Elkins ◽  
...  

Here, we present the genome sequences of 56 isolates of 10 species of the genus Lactobacillus that are considered beneficial components of the gut microbiota. The isolates examined were found in commercially available dietary supplements in the U.S.


Author(s):  
R. D. Heidenreich

This program has been organized by the EMSA to commensurate the 50th anniversary of the experimental verification of the wave nature of the electron. Davisson and Germer in the U.S. and Thomson and Reid in Britian accomplished this at about the same time. Their findings were published in Nature in 1927 by mutual agreement since their independent efforts had led to the same conclusion at about the same time. In 1937 Davisson and Thomson shared the Nobel Prize in physics for demonstrating the wave nature of the electron deduced in 1924 by Louis de Broglie.The Davisson experiments (1921-1927) were concerned with the angular distribution of secondary electron emission from nickel surfaces produced by 150 volt primary electrons. The motivation was the effect of secondary emission on the characteristics of vacuum tubes but significant deviations from the results expected for a corpuscular electron led to a diffraction interpretation suggested by Elasser in 1925.


Author(s):  
Eugene J. Amaral

Examination of sand grain surfaces from early Paleozoic sandstones by electron microscopy reveals a variety of secondary effects caused by rock-forming processes after final deposition of the sand. Detailed studies were conducted on both coarse (≥0.71mm) and fine (=0.25mm) fractions of St. Peter Sandstone, a widespread sand deposit underlying much of the U.S. Central Interior and used in the glass industry because of its remarkably high silica purity.The very friable sandstone was disaggregated and sieved to obtain the two size fractions, and then cleaned by boiling in HCl to remove any iron impurities and rinsed in distilled water. The sand grains were then partially embedded by sprinkling them onto a glass slide coated with a thin tacky layer of latex. Direct platinum shadowed carbon replicas were made of the exposed sand grain surfaces, and were separated by dissolution of the silica in HF acid.


Author(s):  
A. Toledo ◽  
G. Stoelk ◽  
M. Yussman ◽  
R.P. Apkarian

Today it is estimated that one of every three women in the U.S. will have problems achieving pregnancy. 20-30% of these women will have some form of oviductal problems as the etiology of their infertility. Chronically damaged oviducts present problems with loss of both ciliary and microvillar epithelial cell surfaces. Estradiol is known to influence cyclic patterns in secretory cell microvilli and tubal ciliogenesis, The purpose of this study was to assess whether estrogen therapy could stimulate ciliogenesis in chronically damaged human fallopian tubes.Tissues from large hydrosalpinges were obtained from six women undergoing tuboplastic repair while in the early proliferative phase of fheir menstrual cycle. In each case the damaged tissue was rinsed in heparinized Ringers-lactate and quartered.


1999 ◽  
Vol 27 (2) ◽  
pp. 197-198
Author(s):  
Joseph R. Zakhary

In California Dental Association v. FTC, 119 S. Ct. 1604 (1999), the U.S. Supreme Court reviewed a decision by the U.S. Court of Appeals for the Ninth Circuit that a nonprofit affiliation of dentists violated section 5 of the Federal Trade Commission Act (FTCA), 15 U.S.C.A. § 45 (1998), which prohibits unfair competition. The Court examined two issues: (1) the Federal Trade Commission's (FTC) jurisdiction over the California Dental Association (CDA); and (2) the proper scope of antitrust analysis. The Court unanimously held that CDA was subject to FTC's jurisdiction, but split 5-4 in its finding that the district court's use of abbreviated rule-of-reason analysis was inappropriate.CDA is a voluntary, nonprofit association of local dental societies. It boasts approximately 19,000 members, who constitute roughly threequarters of the dentists practicing in California. Although a nonprofit, CDA includes for-profit subsidiaries that financially benefit CDA members. CDA gives its members access to insurance and business financing, and lobbies and litigates on their behalf. Members also benefit from CDA marketing and public relations campaigns.


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