201 research outputs found
Collateral Damage: How Expanding Public Charge Policy Influences Adult ESL Enrollment
This study used statistical analysis of enrollment records for ESL programs at community colleges throughout California from 2015-2019 to determine whether adult immigrants’ participation in public ESL programs was reduced under President Donald Trump. Immigrant families’ lesser use of public education services and means-tested federal benefits has been widely documented in the wake of Trump’s expansion of the public charge rule, which counted immigrants’ use of a wider array of public benefits against their case for residency in the United States than had any previous iteration of the rule. Failing the public charge test can block an immigrant’s entry into the country or even result in their deportation if the federal government determines that they are poor enough to be likely to depend on public monies for their subsistence, thus labeling them a “public charge.” Trump’s expansion of the public charge test resulted in mass chilling effects, whereby eligible immigrants avoided all kinds of public and community services out of fear of adverse immigration consequences, such as family separation. Statistical analysis of adult immigrants’ participation in community college ESL programs found that there was no significant chill in enrollment program-wide; however, three subcategories of students did display significant chilling in 2016 and 2018. Hispanic ESL students; ESL students of color, more generally; and low-income ESL students all displayed significant chilling in these years, mirroring previous findings that these specific groups were more likely than others to avoid public services due to public charge fears
Fatores de risco para degeneração macular relacionada à idade na Argentina
PURPOSES: To assess the risk factors of age-related macular degeneration in Argentina using a case-control study. METHODS: Surveys were used for subjects' antioxidant intake, age/gender, race, body mass index, hypertension, diabetes (and type of treatment), smoking, sunlight exposure, red meat consumption, fish consumption, presence of age-related macular degeneration and family history of age-related macular degeneration. Main effects models for logistic regression and ordinal logistic regression were used to analyze the results. RESULTS: There were 175 cases and 175 controls with a mean age of 75.4 years and 75.5 years, respectively, of whom 236 (67.4%) were female. Of the cases with age-related macular degeneration, 159 (45.4%) had age-related macular degeneration in their left eyes, 154 (44.0%) in their right eyes, and 138 (39.4%) in both eyes. Of the cases with age-related macular degeneration in their left eyes, 47.8% had the dry type, 40.3% had the wet type, and the type was unknown for 11.9%. The comparable figures for right eyes were: 51.9%, 34.4%, and 13.7%, respectively. The main effects model was dominated by higher sunlight exposure (OR [odds ratio]: 3.3) and a family history of age-related macular degeneration (OR: 4.3). Other factors included hypertension (OR: 2.1), smoking (OR: 2.2), and being of the Mestizo race, which lowered the risk of age-related macular degeneration (OR: 0.40). Red meat/fish consumption, body mass index, and iris color did not have an effect. Higher age was associated with progression to more severe age-related macular degeneration. CONCLUSION: Sunlight exposure, family history of age-related macular degeneration, and an older age were the significant risk factors. There may be other variables, as the risk was not explained very well by the existing factors. A larger sample may produce different and better results.OBJETIVO: Determinar os fatores de risco para degeneração macular relacionada à idade na Argentina utilizando um estudo caso-controle. MÉTODOS: Questionários foram usados para a obtenção de informações dos participantes em relação à ingesta de antioxidantes, idade/sexo, raça, índice de massa corporal, hipertensão, diabetes (e tipo de tratamento), tabagismo, exposição à luz solar, consumo de carne vermelha/peixe, presença de degeneração macular relacionada à idade e história familiar de degeneração macular relacionada à idade. Modelos de efeito principal para regressão logística e regressão logística ordinal foram usados para analisar os resultados. RESULTADOS: Foram recrutados 175 casos e 175 controles com uma média de idade de 75,4 anos e 75,5, respectivamente, dos quais 236 (67,4%) eram mulheres. Cento e cinquenta e nove (45,4%) tinham degeneração macular relacionada à idade em seus olhos esquerdos, 154 (44,0%) em seus olhos direitos, e 138 (39,4%) em ambos os olhos. Entre os casos de degeneração macular relacionada à idade no olho esquerdo, 47,8% apresentavam o tipo seca, 40,3% o tipo úmida, e o tipo era desconhecido em 11,9%. Os achados para os olhos direitos foram: 51,9%, 34,4% e 13,7%, respectivamente. O modelo de efeito principal foi dominado por maior exposição à luz solar (OR [odds ratio]: 3,3) e história familiar de degeneração macular relacionada à idade (OR: 4,3). Outros fatores incluindo hipertensão (OR: 2,1), tabagismo (OR: 2,2), e pertencente à raça mestiça, que diminuiram o risco de degeneração macular relacionada à idade (OR: 0,40). Consumo de carne vermelha e de peixe, índice de massa corporal e coloração da íris não foram fatores de risco. Idade avançada foi associada com progressão para degeneração macular relacionada à idade mais grave. CONCLUSÃO: Exposição à luz solar, história familiar de degeneração macular relacionada à idade, e idade avançada foram os fatores de risco significativos. Podem existir outras variáveis, já que os riscos não foram bem explicados pelos fatores existentes. Um maior tamanho amostral poderia produzir resultados diferentes e melhores.Fundación Hugo NanoInternational Agency for the Prevention of BlindnessHospital Distrital Lago Argentino Dr José FormentiUniversidade Federal de São Paulo (UNIFESP)Centro Privado de Ojos Romagosa-Fundación VER CórdobaUNIFESPSciEL
Microtubule-severing enzymes: From cellular functions to molecular mechanism.
Microtubule-severing enzymes generate internal breaks in microtubules. They are conserved in eukaryotes from ciliates to mammals, and their function is important in diverse cellular processes ranging from cilia biogenesis to cell division, phototropism, and neurogenesis. Their mutation leads to neurodegenerative and neurodevelopmental disorders in humans. All three known microtubule-severing enzymes, katanin, spastin, and fidgetin, are members of the meiotic subfamily of AAA ATPases that also includes VPS4, which disassembles ESCRTIII polymers. Despite their conservation and importance to cell physiology, the cellular and molecular mechanisms of action of microtubule-severing enzymes are not well understood. Here we review a subset of cellular processes that require microtubule-severing enzymes as well as recent advances in understanding their structure, biophysical mechanism, and regulation
Detailed SZ study of 19 LoCuSS galaxy clusters: masses and temperatures out to the virial radius
We present 16-GHz AMI SZ observations of 19 clusters with L_X >7x10^37 W
(h50=1) selected from the LoCuS survey (0.142<z<0.295) and of A1758b, in the
FoV of A1758a. We detect 17 clusters with 5-23sigma peak surface brightnesses.
Cluster parameters are obtained using a Bayesian cluster analysis. We fit
isothermal beta-models to our data and assume the clusters are virialized (with
all the kinetic energy in gas internal energy). Our gas temperature, T_AMI, is
derived from AMI SZ data, not from X-ray spectroscopy. Cluster parameters
internal to r500 are derived assuming HSE. We find: (i) Different gNFW
parameterizations yield significantly different parameter degeneracies. (ii)
For h70 = 1, we find the virial radius r200 to be typically 1.6+/-0.1 Mpc and
the total mass M_T(r200) typically to be 2.0-2.5xM_T(r500).(iii) Where we have
found M_T X-ray (X) and weak-lensing (WL) values in the literature, there is
good agreement between WL and AMI estimates (with M_{T,AMI}/M_{T,WL}
=1.2^{+0.2}_{-0.3} and =1.0+/-0.1 for r500 and r200, respectively). In
comparison, most Suzaku/Chandra estimates are higher than for AMI (with
M_{T,X}/M_{T,AMI}=1.7+/-0.2 within r500), particularly for the stronger
mergers.(iv) Comparison of T_AMI to T_X sheds light on high X-ray masses: even
at large r, T_X can substantially exceed T_AMI in mergers. The use of these
higher T_X values will give higher X-ray masses. We stress that large-r T_SZ
and T_X data are scarce and must be increased. (v) Despite the paucity of data,
there is an indication of a relation between merger activity and SZ
ellipticity. (vi) At small radius (but away from any cooling flow) the SZ
signal (and T_AMI) is less sensitive to ICM disturbance than the X-ray signal
(and T_X) and, even at high r, mergers affect n^2-weighted X-ray data more than
n-weighted SZ, implying significant shocking or clumping or both occur even in
the outer parts of mergers.Comment: 45 pages, 33 figures, 13 tables Accepted for publication in MNRA
Public support for coercive diplomacy: Exploring public opinion data from ten European countries
Abstract.
Scholarship has increasingly acknowledged the importance of public attitudes for shaping the
European Union’s Common Foreign and Security Policy. Economic sanctions emerged as one of CFSP’s
central tools. Yet despite the emergence of sanctions as a popular instrument in the EU foreign policy
toolbox, public attitudes towards sanctions are yet to be studied in depth. This article explains public support
for EU sanctions, using the empirical example of sanctions against Russia. It looks at geopolitical attitudes,
economic motivations and ideational factors to explain the variation in public support for sanctions. The
conclusion suggests that geopolitical factors are the most important, and that economic factors matter very
little. Euroscepticism and anti-Americanism play an important role in explaining the support for sanctions
at the individual level
Willingness and Ability of Dental Healthcare Workers to Work During the COVID-19 Pandemic
Background
The 2019 novel coronavirus pandemic continues to disrupt dental practice in the United States. Dental health care workers (DHCWs) play an integral role in societal health, yet little is known about their willingness and ability to work during a pandemic.background
Methods
DHCWs completed a survey distributed on dental specific Facebook groups for an eight-week period (May 2020-June 2020) about their willingness and ability to work during the COVID-19 pandemic, barriers to working, and willingness to take a COVID-19 vaccine.
Results
459 surveys were returned. Only 53% of dentists, 33% of hygienists, 29% of assistants and 48% of non-clinical staff would be able to work a normal shift during the pandemic, while even fewer (50%, 18%, 17%, 38% respectively) would be willing to work a normal shift. Barriers included caring for family, a second job and personal obligations and were faced by assistants and hygienists. Dentists were more likely than hygienists (p<0.001), assistants (p<0.001) and non-clinical staff (p=0.014) to take a COVID-19 vaccine.results
Conclusions
DHCWs have a decreased ability and willingness to report to work during a pandemic, with dentists being significantly more able and willing to work than hygienists and assistants. Dentists are more likely than staff to take a COVID-19 vaccine
Trends in dental insurance claims in the United States before and during the SARS-CoV-2 pandemic in 2020
Objectives: The SARS-CoV-2 pandemic disrupted health care services. Previous
reports estimated reductions in demand and supply of dental care services, but actual
changes have not been reported. The present report depicts a perspective of trends in
claims from private dental practice in the United States during 2019 and 2020.
Methods: Private dental insurance paid claims data from a data warehouse
(encompassing 66+ carriers in the United States) were obtained for children and
adults (treatments identified by their American Dental Association Code of Dental Procedures and Nomenclature [CDT]), encompassing a 5% random sample of
all records between January 2019 and December 2020. A market-based treatment
classification placed CDT codes into one of four categories based on the likelihood of being associated with urgent/emergency care.
Results: Claims for 3.8 million patients constituted the 5% random sample for
analyses. Substantial drops in the provision of treatment items were quantified for
a large segment of private dental insurance plans at a national level, showing differential impacts in dental care categories.
Conclusions: Week-by-week, detailed descriptions of demand/availability changes in
dental care throughout the first year of the 2020 SARS-CoV-2 pandemic were
obtained through contrasting perspectives in 2019. Provision of dental care and associated impacts fluctuated over time subject to treatment urgency, but also modified as
the weeks/months of dental office lockdowns ebbed in and out of the dental market
Multiple novel prostate cancer susceptibility signals identified by fine-mapping of known risk loci among Europeans
Genome-wide association studies (GWAS) have identified numerous common prostate cancer (PrCa) susceptibility loci. We have
fine-mapped 64 GWAS regions known at the conclusion of the iCOGS study using large-scale genotyping and imputation in
25 723 PrCa cases and 26 274 controls of European ancestry. We detected evidence for multiple independent signals at 16
regions, 12 of which contained additional newly identified significant associations. A single signal comprising a spectrum of
correlated variation was observed at 39 regions; 35 of which are now described by a novel more significantly associated lead SNP,
while the originally reported variant remained as the lead SNP only in 4 regions. We also confirmed two association signals in
Europeans that had been previously reported only in East-Asian GWAS. Based on statistical evidence and linkage disequilibrium
(LD) structure, we have curated and narrowed down the list of the most likely candidate causal variants for each region.
Functional annotation using data from ENCODE filtered for PrCa cell lines and eQTL analysis demonstrated significant
enrichment for overlap with bio-features within this set. By incorporating the novel risk variants identified here alongside the
refined data for existing association signals, we estimate that these loci now explain ∼38.9% of the familial relative risk of PrCa,
an 8.9% improvement over the previously reported GWAS tag SNPs. This suggests that a significant fraction of the heritability of
PrCa may have been hidden during the discovery phase of GWAS, in particular due to the presence of multiple independent
signals within the same regio
Evolution And Medicine In Undergraduate Education: A Prescription For All Biology Students
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/91331/1/j.1558-5646.2011.01552.x.pd
Height, selected genetic markers and prostate cancer risk:Results from the PRACTICAL consortium
Background: Evidence on height and prostate cancer risk is mixed, however, recent studies with large data sets support a
possible role for its association with the risk of aggressive prostate cancer.
Methods: We analysed data from the PRACTICAL consortium consisting of 6207 prostate cancer cases and 6016 controls and a
subset of high grade cases (2480 cases). We explored height, polymorphisms in genes related to growth processes as main effects
and their possible interactions.
Results: The results suggest that height is associated with high-grade prostate cancer risk. Men with height 4180cm are at a 22%
increased risk as compared to men with height o173cm (OR 1.22, 95% CI 1.01–1.48). Genetic variants in the growth pathway gene
showed an association with prostate cancer risk. The aggregate scores of the selected variants identified a significantly increased
risk of overall prostate cancer and high-grade prostate cancer by 13% and 15%, respectively, in the highest score group as
compared to lowest score group.
Conclusions: There was no evidence of gene-environment interaction between height and the selected candidate SNPs. Our
findings suggest a role of height in high-grade prostate cancer. The effect of genetic variants in the genes related to growth is
seen in all cases and high-grade prostate cancer. There is no interaction between these two exposures.</p
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