742 research outputs found

    Prior Conviction Impeachment in the District of Columbia: What Happened when the Courts Ran Out of Luck?

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    These comments are part of the District of Columbia Surve

    U.S. Manufacturing Unemployment In the Recession: The Impact of Offshoring and Unauthorized Resident Populations

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    Employment in the manufacturing industry has declined. The year 2010 was the first time in over a decade that jobs were added in industry. The manufacturing sector is comprised of establishments engaged in the mechanical or chemical transformation of materials or components into new products. Given the high levels of U.S. manufacturing unemployment since the onset of the most recent recession, it has been argued that the high unemployment rate is due to offshoring and unauthorized residents. This study supports the argument that the high levels of U.S. manufacturing unemployment is due to offshoring and refutes the argument that the high manufacturing unemployment is due to unauthorized resident populations. It explores the relationships between the changes in unemployment in the manufacturing industry, unauthorized resident populations, and offshoring. This study also provides insights on the impact of offshoring and illegal immigration on manufacturing unemployment during the recession

    Morbid adherence of the placenta: lack of specificity should remind us that ultrasound is a screening tool.

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    Excellent performance has been reported with prenatal diagnosis of abnormal placental invasion using ultrasound. We describe a case which illustrates the validity of ultrasound features of abnormally invasive placentation in women without previous caesarean delivery. CASE: Ms. CB, a 27 year-old G3 P1+1 was seen in her pregnancy at 36 weeks of gestation. Her first pregnancy was uncomplicated and she gave vaginal birth to a normally grown baby at term. Before the current pregnancy, she suffered a miscarriage in the first trimester, and underwent surgical evacuation. She suffered prolonged vaginal blood loss for which she was investigated, and a diagnosis of A-V malformation (AVM) was made on the basis of the ultrasound findings (Figure 1). She conceived spontaneously before intervention

    Applicability of tandem affinity purification MudPIT to pathway proteomics in yeast

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    A combined multidimensional chromatography-mass spectrometry approach known as "MudPIT" enables rapid identification of proteins that interact with a tagged bait while bypassing some of the problems associated with analysis of polypeptides excised from SDS-polyacrylamide gels. However, the reproducibility, success rate, and applicability of MudPIT to the rapid characterization of dozens of proteins have not been reported. We show here that MudPIT reproducibly identified bona fide partners for budding yeast Gcn5p. Additionally, we successfully applied MudPIT to rapidly screen through a collection of tagged polypeptides to identify new protein interactions. Twenty-five proteins involved in transcription and progression through mitosis were modified with a new tandem affinity purification (TAP) tag. TAP-MudPIT analysis of 22 yeast strains that expressed these tagged proteins uncovered known or likely interacting partners for 21 of the baits, a figure that compares favorably with traditional approaches. The proteins identified here comprised 102 previously known and 279 potential physical interactions. Even for the intensively studied Swi2p/Snf2p, the catalytic subunit of the Swi/Snf chromatin remodeling complex, our analysis uncovered a new interacting protein, Rtt102p. Reciprocal tagging and TAP-MudPIT analysis of Rtt102p revealed subunits of both the Swi/Snf and RSC complexes, identifying Rtt102p as a common interactor with, and possible integral component of, these chromatin remodeling machines. Our experience indicates it is feasible for an investigator working with a single ion trap instrument in a conventional molecular/cellular biology laboratory to carry out proteomic characterization of a pathway, organelle, or process (i.e. "pathway proteomics") by systematic application of TAP-MudPIT

    Evaluation of Anthelmintic Resistance and Exhaust Air Dust PCR as a Diagnostic Tool in Mice Enzootically Infected with Aspiculuris tetraptera

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    The entry of infectious agents in rodent colonies occurs despite robust sentinel monitoring programs, strict quarantine measures, and stringent biosecurity practices. In light of several outbreaks with Aspiculuris tetraptera in our facilities, we investigated the presence of anthelmintic resistance and the use of exhaust air dust (EAD) PCR for early detection of A. tetraptera infection. To determine anthelmintic resistance, C57BL/6, DBA/2, and NCr nude mice were experimentally inoculated with embryonated A. tetraptera ova harvested from enzootically infected mice, followed by treatment with 150 ppm fenbendazole in feed, 150 ppm fenbendazole plus 5 ppm piperazine in feed, or 2.1 mg/mL piperazine in water for 4 or 8 wk. Regardless of the mouse strain or treatment, no A. tetraptera were recovered at necropsy, indicating the lack of resistance in the worms to anthelmintic treatment. In addition, 10 of 12 DBA/2 positive-control mice cleared the A. tetraptera infection without treatment. To evaluate the feasibility of EAD PCR for A. tetraptera, 69 cages of breeder mice enzootically infected with A. tetraptera were housed on a Tecniplast IVC rack as a field study. On day 0, 56% to 58% of the cages on this rack tested positive for A. tetraptera by PCR and fecal centrifugation flotation (FCF). PCR from EAD swabs became positive for A. tetraptera DNA within 1 wk of placing the above cages on the rack. When these mice were treated with 150 ppm fenbendazole in feed, EAD PCR reverted to pinworm-negative after 1 mo of treatment and remained negative for an additional 8 wk. The ability of EAD PCR to detect few A. tetraptera positive mice was investigated by housing only 6 infected mice on another IVC rack as a field study. The EAD PCR from this rack was positive for A. tetraptera DNA within 1 wk of placing the positive mice on it. These findings demonstrate that fenbendazole is still an effective anthelmintic and that EAD PCR is a rapid, noninvasive assay that may be a useful diagnostic tool for antemortem detection of A. tetraptera infection, in conjunction with fecal PCR and FCF

    Dance Experience Affects Tempo Perception

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    In music, the word “tempo” refers to the speed or pace of the music (the number of beats per minute, for example). Tempo is surprisingly subjective, given that beat perception depends on age and cultural experience. Other factors besides beat (like the density of events per unit time) might influence how fast or slow people dance to music. Certain styles of music afford different speeds of dance, even when their tempos are the same.https://digitalscholarship.unlv.edu/durep_posters/1134/thumbnail.jp
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