2,200 research outputs found

    Identifying the Beliefs and Barriers to Mammography in Rural African Women

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    Breast cancer is the most commonly diagnosed cancer in African-American (AA) women and is the second leading cause of cancer-related deaths in the United States among AA women ages 40 to 55 years of age. The 5-year breast cancer survival rates for AA women (78%) are lower than are those of Caucasian women (90%). The purpose of this project was to describe the benefits and barriers toward screening mammograms for breast cancer in AA women living in the Southside Health District in Virginia. The subscales of The Champion\u27s Mammography Beliefs and Attitudes Questionnaire (MBAQ, 1999), which is based on the health belief model variables of perceived benefits and barriers, guided this project. A convenience sampling of AA women (n = 112) from 10 different churches in Brunswick and Mecklenburg County, Virginia completed Champion\u27s MBAQ after participating in an educational program based on the Susan G. Komen\u27s breast self-awareness messages. Descriptive analyzes revealed that 54% of the participants either agreed or strongly agreed with the perceived benefits to getting a screening mammogram, whereas 7% either agreed or strongly agreed with the perceived barriers to getting a screening mammogram. The results of this project are consistent with the literature and support the idea that it is imperative to educate AA women about screening mammograms in places where they socialize. This project contributed to social change in nursing practice by enhancing the awareness among AA women that early screening mammograms save lives

    Face-to-face vs. blended learning in higher education: a quantitative analysis of biological science student outcomes

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    he COVID-19 pandemic caused a rapid seismic shift to online delivery in otherwise face-to-face higher education settings worldwide. This quantitative research study sought to investigate the effect of different delivery styles and assessment types on student outcomes. Specifically, grades achieved by first year undergraduate Biological Science students at a UK Higher Education institution were compared from seven modules across two different academic years, namely 2018–2019 and 2020–2021. The academic year 2018–2019 was delivered in the traditional face-to-face manner whereas the 2020–2021 method of delivery was via blended learning. The results showed that four of the seven modules were negatively affected by the transition from face-to-face to blended delivery (p < 0.05, T-test). One module was unaffected (p > 0.05, T-test) and the remaining two modules were positively affected (p < 0.05, T-test). However, the percentage of students requiring reassessments increased with blended learning delivery although this was not significant (p < 0.05, T-test). In summary, the majority of individual module marks decreased with blended learning compared to face-to-face delivery, with an associated increase in required reassessments. Although there are positive benefits to incorporating an element of online learning for students, it is important to utilise this information in future module delivery planning to support the varying student cohorts of the future

    Late Ordovician shelly faunas from Jamtland:palaeocommunity development along the margin of the Swedish Caledonides

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    Late Ordovician shelly faunas occur at several localities in the Ostersund area of Jamtland (Sweden) and developed against a background of intense and rapid global climate change. In the eastern part, approximately in the middle parts of the Krykas Quartzite, and in the western part in the uppermost Kogsta Siltstone changes in faunas and sedimentary patterns provide regional evidence of these global events. In both areas the faunas occur in shale and siltstone facies and are used to effect correlations between the eastern and western parts of the region, which show major differences in facies development. These sub-basins, situated on the margins of a developing mountain belt, reacted differently to global signals providing further evidence of the heterogeneous responses to climate change at the end of the Ordovician Period

    The Convergence Of Multinational Standards And Practices In International Financial Reporting

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    The International Financial Reporting Standards (IFRS) is pending a move to incorporate a single set of accounting standards across International borders. The definitive decision for uniting the standards appears to be stalemated. The pending move by the United States to adopt financial reporting practices set forth by the IFRS to encompass a single set of reporting standards bears both advantages and disadvantages for multinational corporations. This paper examines some of the difficulties that can arise by using a single set of standards and addresses two significant studies regarding converging reporting standards. The paper concludes by discussing issues that could potentially arise if the standards are adopted in their entirety by the United States and the political issues that could emerge resultant of their adoption. The significance of international investment opportunities in foreign equity securities by investors in the United States and the significant number of foreign corporations registered on various securities exchanges around the world make the adoption and establishment of international reporting standards a challenge to many accounting professionals

    The Impact Of Switching To International Financial Reporting Standards On United States Businesses

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    There has been controversy brewing among accounting professionals regarding the impact of switching to International Financial Reporting Standards (IFRS) on United States corporations as deemed to converge in the near future (Deming, 2005). The viewpoint presented in this paper is that the United States should conform to the international standards primarily because a single set of standards creates uniformity and comparability for stakeholders regardless of their geographic location. This paper addresses the potential advantages and disadvantages of moving to a global set of standards as well as how the Financial Accounting Standards Board (FASB) will need to work with the International Accounting Standards Board (IASB) to align the current United States Generally Accepted Accounting Principles (GAAP) with the newly proposed international accounting standards. If adopted, a wide range of issues relating to the operations within a business will need consideration in the future. One of these issues include effects of taxes as businesses will need to become keenly aware of how a country’s tax law and auditing practices affect their operations. The paper presents the repercussions United States corporations will face as a result of the convergence and how future accounting professionals, investors, financial institutions and students of accountancy. They will need to continue to stay abreast of changes in this area as these changes can ultimately change the way accounting standards are practiced, credentialed and taught over the next decade

    Advanced information processing system for advanced launch system: Avionics architecture synthesis

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    The Advanced Information Processing System (AIPS) is a fault-tolerant distributed computer system architecture that was developed to meet the real time computational needs of advanced aerospace vehicles. One such vehicle is the Advanced Launch System (ALS) being developed jointly by NASA and the Department of Defense to launch heavy payloads into low earth orbit at one tenth the cost (per pound of payload) of the current launch vehicles. An avionics architecture that utilizes the AIPS hardware and software building blocks was synthesized for ALS. The AIPS for ALS architecture synthesis process starting with the ALS mission requirements and ending with an analysis of the candidate ALS avionics architecture is described

    Addressing Dehumanizing Mathematical Practices: Using Supervisory Leaders’ Experiential Knowledge to Transform the Mathematics Classroom

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    Deficit language concerning historically marginalized students pervades much of education today. Black, Brown, and Indigenous children experience marginalization and dehumanizing practices in classrooms instead of participating in a safe space to learn and grow. For this paper we employ a crucial component from Critical Race Theory to address systemic racism in schools: we listen to the lived experiences of professionals of color. These personal narratives open avenues for social justice through critiquing current and historical political, economic, and sociocultural practices and policies. This study examined how four Black collaborators – one high school principal, one middle school principal, one elementary principal, and one special education teacher – each with decades of instructional experience, address four key dehumanizing practices students of color experience in classrooms across the country in their own supervision practices

    Glutaredoxin-2 Is Required to Control Proton Leak through Uncoupling Protein-3

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    Glutathionylation has emerged as a key modification required for controlling protein function in response to changes in cell redox status. Recently, we showed that the glutathionylation state of uncoupling protein-3 (UCP3) modulates the leak of protons back into the mitochondrial matrix, thus controlling reactive oxygen species production. However, whether or not UCP3 glutathionylation is mediated enzymatically has remained unknown because previous work relied on the use of pharmacological agents, such as diamide, to alter the UCP3 glutathionylation state. Here, we demonstrate that glutaredoxin-2 (Grx2), a matrix oxidoreductase, is required to glutathionylate and inhibit UCP3. Analysis of bioenergetics in skeletal muscle mitochondria revealed that knock-out of Grx2 (Grx2–/–) increased proton leak in a UCP3-dependent manner. These effects were reversed using diamide, a glutathionylation catalyst. Importantly, the increased leak did not compromise coupled respiration. Knockdown of Grx2 augmented proton leak-dependent respiration in primary myotubes from wild type mice, an effect that was absent in UCP3–/– cells. These results confirm that Grx2 deactivates UCP3 by glutathionylation. To our knowledge, this is the first enzyme identified to regulate UCP3 by glutathionylation and is the first study on the role of Grx2 in the regulation of energy metabolism. Supplementary files attached below

    SKF96365 modulates activity of CatSper channels in human sperm

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    Exposure of human sperm to progesterone (P4) activates cation channel of sperm (CatSper) channels, inducing an intracellular Ca2+ concentration ([Ca2+]i) transient followed by repetitive [Ca2+]i activity (oscillations), which are believed to be functionally important. We investigated the potential significance of store-operated Ca2+-entry in these oscillations using the inhibitor SKF96365 (30 µM; SKF). Following pre-treatment of human sperm with 3 µM P4, exposure to SKF doubled the proportion of oscillating cells (P = 0.00004). In non-pre-treated cells, SKF had an effect similar to P4, inducing a [Ca2+]i transient in &gt;80% of cells which was followed by oscillations in ≈50% of cells. The CatSper blocker RU1968 (11 µM) inhibited the SKF-induced [Ca2+]i increase and reversibly arrested [Ca2+]i oscillations. Using whole-cell patch clamp, we observed that SKF enhanced CatSper currents by 100% within 30 s, but amplitude then decayed to levels below control over the next minute. When cells were stimulated with P4, CatSper currents were stably increased (by 200%). Application of SKF then returned current amplitude to control level or less. When sperm were prepared in medium lacking bovine serum albumin (BSA), both P4 and SKF induced a [Ca2+]i transient in &gt;95% of cells but the ability of SKF to induce oscillations was greatly reduced (P = 0.0009). We conclude that SKF, similar to a range of small organic molecules, activates CatSper channels, but that a secondary blocking action also occurs, which was detected only during patch-clamp recording. The failure of SKF to induce oscillations when cells were prepared without BSA emphasizes that the drug does not fully mimic the actions of P4.</p
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