268 research outputs found

    STRATEGIES UNDER STRESS: HOW SENIOR STUDENT AFFAIRS OFFICERS ARE MANAGING IN THE MIDST OF INSTITUTIONAL RETRENCHMENT

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    Higher education had been one of the highest funding priorities in most states, however, in recent years, governors and state legislators have focused their efforts in higher education on cutting budgets to deal with historic gaps in revenue. As a result, university administrators have been challenged to modify their institutions’ academic programs, administrative units, and student affairs operations to contain costs and increase revenue. This study examined the extent of financial challenges faced in student affairs divisions at four-year, state-supported institutions during the period between 2008 and 2012 and the strategies utilized by senior student affairs officers to manage them. A researcher-developed online survey instrument was used to collect data from senior student affairs officers at four-year, public institutions of higher education which were members of Student Affairs Administrators in Higher Education (NASPA). The questionnaire was designed to gather information regarding the impact of institutional financial constraints on student affairs units and the resulting student service area changes, funding shifts, and leadership engagement and knowledge in budgeting. Descriptive statistics and a thematic analysis were used to examine the data which showed that, while student affairs units had experienced decreases in institutional support during the timeframe investigated, university financial constraints did not have a significant impact on eliminating or creating student affairs services. The student affairs services most often reduced were career development, college or student unions, and dean of students. Findings also indicated counseling and psychological services, recreation and fitness programs, residence life and housing, and disability support services were most frequently increased. The most frequent shift in student affairs funding to mitigate fiscal stress was through internal reallocation followed by establishing or increasing a mandatory or user fee. Counseling and psychological services, health services, college or student unions, and recreation and fitness programs were services most frequently identified as experiencing a funding change. The results encourage senior student affairs officers to find a balance of new funding opportunities while also being effective and efficient with reductions to programs and services

    BUILDING SOCIAL AND COMMUNITY CONNECTIONS TO ADDRESS FOOD INSECURITY IN CHILDREN UNDER 18 IN BURKE COUNTY PUBLIC SCHOOLS

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    Addressing the complex nature and interplay of social and community factors, this paper offers recommendations to alleviate the issue of very low food security in children under eighteen in Burke County, North Carolina. A holistic approach was employed, emphasizing the social and community context and the critical influence of social determinants of health on food insecurity. By focusing on collaborative strategies and leveraging community resources, our paper aims to develop and provide sustainable solutions to improve food security outcomes for individuals under 18. Key components include enhancing access to nutritious foods, advocating for policy changes to address systemic barriers, and promoting community engagement. By synthesizing our research findings and practical insights, this project offers actionable recommendations for community partners and policymakers to advance efforts toward eliminating very low food insecurity among children and teens under 18 in Burke County, North Carolina.Master of Public Healt

    miR-126-3p promotes matrix-dependent perivascular cell attachment, migration and intercellular interaction

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    microRNAs (miRNAs) can regulate the interplay between perivascular cells (PVC) and endothelial cells (EC) during angiogenesis, but the relevant PVC-specific miRNAs are not yet defined. Here, we identified miR-126-3p and miR-146a to be exclusively upregulated in PVC upon interaction with EC, determined their influence on the PVC phenotype and elucidate their molecular mechanisms of action. Specifically the increase of miR-126-3p strongly promoted the motility of PVC on the basement membrane-like composite and stabilized networks of endothelial cells. Subsequent miRNA target analysis showed that miR-126-3p inhibits SPRED1 and PLK2 expression, induces ERK1/2 phosphorylation and stimulates TLR3 expression to modulate cell-cell and cell-matrix contacts of PVC. Gain of expression experiments in vivo demonstrated that miR-126-3p stimulates PVC coverage of newly formed vessels and transform immature into mature, less permeable vessels. In conclusion we showed that miR-126-3p regulates matrix-dependent PVC migration and intercellular interaction to modulate vascular integrity

    The Effects of Puerarin on Rat Ventricular Myocytes and the Potential Mechanism

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    Puerarin, a known isoflavone, is commonly found as a Chinese herb medicine. It is widely used in China to treat cardiac diseases such as angina, cardiac infarction and arrhythmia. However, its cardioprotective mechanism remains unclear. In this study, puerarin significantly prolonged ventricular action potential duration (APD) with a dosage dependent manner in the micromolar range on isolated rat ventricular myocytes. However, submicromolar puerarin had no effect on resting membrane potential (RMP), action potential amplitude (APA) and maximal velocity of depolarization (Vmax) of action potential. Only above the concentration of 10 mM, puerarin exhibited more aggressive effect on action potential, and shifted RMP to the positive direction. Millimolar concentrations of puerarin significantly inhibited inward rectified K+ channels in a dosage dependent manner, and exhibited bigger effects upon Kir2.1 vs Kir2.3 in transfected HEK293 cells. As low as micromolar range concentrations of puerarin significantly inhibited Kv7.1 and IKs. These inhibitory effects may due to the direct inhibition of puerarin upon channels not via the PKA-dependent pathway. These results provided direct preclinical evidence that puerarin prolonged APD via its inhibitory effect upon Kv7.1 and IKs, contributing to a better understanding the mechanism of puerarin cardioprotection in the treatment of cardiovascular diseases

    Voltage and Ca2+ Activation of Single Large-Conductance Ca2+-Activated K+ Channels Described by a Two-Tiered Allosteric Gating Mechanism

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    The voltage- and Ca2+-dependent gating mechanism of large-conductance Ca2+-activated K+ (BK) channels from cultured rat skeletal muscle was studied using single-channel analysis. Channel open probability (Po) increased with depolarization, as determined by limiting slope measurements (11 mV per e-fold change in Po; effective gating charge, qeff, of 2.3 ± 0.6 eo). Estimates of qeff were little changed for intracellular Ca2+ (Ca2+i) ranging from 0.0003 to 1,024 μM. Increasing Ca2+i from 0.03 to 1,024 μM shifted the voltage for half maximal activation (V1/2) 175 mV in the hyperpolarizing direction. V1/2 was independent of Ca2+i for Ca2+i ≤ 0.03 μM, indicating that the channel can be activated in the absence of Ca2+i. Open and closed dwell-time distributions for data obtained at different Ca2+i and voltage, but at the same Po, were different, indicating that the major action of voltage is not through concentrating Ca2+ at the binding sites. The voltage dependence of Po arose from a decrease in the mean closing rate with depolarization (qeff = −0.5 eo) and an increase in the mean opening rate (qeff = 1.8 eo), consistent with voltage-dependent steps in both the activation and deactivation pathways. A 50-state two-tiered model with separate voltage- and Ca2+-dependent steps was consistent with the major features of the voltage and Ca2+ dependence of the single-channel kinetics over wide ranges of Ca2+i (∼0 through 1,024 μM), voltage (+80 to −80 mV), and Po (10−4 to 0.96). In the model, the voltage dependence of the gating arises mainly from voltage-dependent transitions between closed (C-C) and open (O-O) states, with less voltage dependence for transitions between open and closed states (C-O), and with no voltage dependence for Ca2+-binding and unbinding. The two-tiered model can serve as a working hypothesis for the Ca2+- and voltage-dependent gating of the BK channel

    An explanation for the mysterious distribution of melanin in human skin ‐ a rare example of asymmetric (melanin) organelle distribution during mitosis of basal layer progenitor keratinocytes

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    YesBackground: Melanin is synthesized by melanocytes in the basal layer of the epidermis. When transferred to surrounding keratinocytes it is the key UVR-protective biopolymer responsible for skin pigmentation. Most melanin is observable in the proliferative basal layer of the epidermis, and only sparsely distributed in the stratifying/differentiating epidermis. The latter has been explained, despite formal evidence, to ‘melanin degradation’ in supra-basal layers. Objectives: Our aim was to re-evaluate this currently-accepted basis for melanin distribution in the human skin epidermis, and whether this pattern is altered after a regenerative stimulus. Methods: Normal epidermis of adult human skin, at rest and after tape-stripping, was analysed by a range of (immuno)histochemical and high-resolution microscopy techniques. In vitro models of melanin granule uptake by human keratinocytes were attempted. Results: We propose a wholly different fate for melanin in the human epidermis. Our evidence indicates that the bulk of melanin is inherited only by the non-differentiating daughter cell post mitosis in progenitor keratinocytes, via asymmetric organelle inheritance. Moreover, this preferred pattern of melanin distribution can switch to a symmetric or equal daughter cell inheritance mode under conditions of stress including regeneration. Conclusions: We provide in this preliminary report a plausible and histologically-supportable explanation for how human skin pigmentation is efficiently organized in the epidermis. Steady state epidermis pigmentation may involve much less redox-sensitive melanogenesis than previously thought, and at least some pre-made melanin may be available for re-use. The epidermal-melanin unit may be an excellent example to study organelle distribution via asymmetric or symmetric inheritance in response to micro-environment and tissue demands.Walgreens Boots Allianc
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