28 research outputs found

    Investigating Gender Differences in Green IT Awareness among University Librarians

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    Gender differences in green IT awareness and practices were the primary focus of the study. This study was carried out in the Libraries of Public and Private Universities in the Lahore and Gujranwala Divisions. This study aimed to investigate the gender differences regarding personal norms of university librarians, gender differences regarding the behavioral intention to use green computing in libraries, gender differences regarding the ascription of responsibility regarding the use of green computing in libraries, and gender differences in terms of green computing for environmental concerns regarding the use of green computing in libraries. This study adopted a quantitative research design. The data were collected from 46 universities located in Lahore and Gujranwala.  Seventy-five male and 57 female librarians provided data to complete this research. In data collection, the researcher employed a closed-ended questionnaire. According to the current study, respondents agreed that they are aware that e-waste generated by computer equipment contributes to global warming, that informal disposal is harmful to our environment, and that operating systems cause significant local ecological damage. The majority of respondents agreed that green computing practices could help libraries save energy and help reduce local environmental damage, as demonstrated by the results

    Effects of deleting cannabinoid receptor-2 on mechanical and material properties of cortical and trabecular bone

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    Acknowledgements We thank Dr J.S. Gregory for assistance with Image J and Mr K. Mackenzie for assistance with Micro-CT analysis. Funding ABK was funded by a University of Aberdeen, Institute of Medical Sciences studentship and the Overseas Research Students Awards Scheme.Peer reviewedPublisher PD

    Mechanical and material properties of cortical and trabecular bone from cannabinoid receptor-1-null (Cnr1-/-) mice

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    Funding ABK was funded by a studentship from the University of Aberdeen, Institute of Medical Sciences, and the Overseas Research Students Awards Scheme Acknowledgments We are grateful to Dr J.S. Gregory for assistance with Image J and Mr K. Mackenzie for assistance with Micro-CT analysis.Peer reviewedPostprin

    Architectural Design and Prototyping of Co-PPGIS: A Groupware-Based Online Synchronous Collaborative PPGIS to Support Municipality Development and Planning Management Workflows

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    Co-PPGIS has a wide variety of applications like municipal planning, emergency response, public health and security, etc. The main focus of this chapter is on the development and design of a Web Collaborative PPGIS (Co-PPGIS) infrastructure. As part of municipality’s planning and management services, Co-PPGIS is developed for real-time map sharing application system. Co-PPGIS is an effective and essential online meeting system for supporting group collaborations on geographic information such as maps and imageries, and capturing and sharing of local/domain knowledge in real time. Co-PPGIS permits amalgamation of geospatial data and collaborator’s input in the form of geo-referenced notations. It incorporates coherent components as map sharing, real-time chat, video conferencing, geo-referenced textual and graphical notations. The study aims to focus on public participation and geo-collaboration facilitated with information sharing, interactive geo-conferencing, real-time map, and data sharing with tools to draw features or add annotation to the map while discussions, uploading documents, and live communication. Co-PPGIS provides an efficient and reliable platform that will significantly reduce the time to acquire, process, and analyze data. The significance of this study is to contribute to existing public participation practices, to municipal planning, to decision-making, or to geographic information science

    Carnosol Induces p38-Mediated ER Stress Response and Autophagy in Human Breast Cancer Cells

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    We recently reported that carnosol induces ROS-dependent autophagy and apoptosis in breast cancer cells. We also reported that carnosol inhibits breast cancer cell migration, invasion, and in ovo tumor growth, as well as targets STAT3, PCAF, and p300 to proteasome degradation. Here, we investigated the molecular mechanisms underlying its anti-malignant activity in breast cancer. We report that carnosol induces a ROS-dependent type I and type II programmed cell death (PCD-I or PCD-II, respectively), which occurred independently of each other. Indeed, chemical inhibition of autophagy had no effect on the induction of apoptosis, evident by the absence of cleaved PARP. Electron microscopy revealed that carnosol-treated cells exhibited enlarged endoplasmic reticulum, characteristic of ER stress. Markers of the three unfolded protein response pathways (PERK, IRE-1 α, and ATF6), namely ATF4, CHOP, phospho-IRE-1α, XBP1S, and cleaved ATF6 were upregulated in a ROS-dependent manner. In addition, carnosol induced a ROS-dependent activation of p38MAPK, increased the overall level of protein polyubiquitination, and targeted mTOR protein to proteasome degradation. Interestingly, inhibition of p38MAPK, by SB202190 and 203580, reduced cell death, selectively blocked the induction of IRE-1α and ATF6 UPR sensors and inhibited autophagy. In addition, inhibition of p38 reduced the carnosol-induced polyubiquitination and rescued mTOR, PCAF, and STAT3 from proteasomal degradation. Importantly, activation of PERK sensors and induction of apoptosis occurred independently of p38 activation. Taken together, our results suggest that ROS-dependent induced-ER stress contributes to carnosol-induced apoptotic and autophagic cell death in breast cancer cells, and further confirm that carnosol is a promising agent for breast cancer therapy

    Genetic association and characterization of FSTL5 in isolated clubfoot

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    ACKNOWLEDGEMENTS: The Atherosclerosis Risk in Communities Study is carried out as a collaborative study supported by National Heart, Lung, and Blood Institute contracts (HHSN268201100005C, HHSN268201100006C, HHSN268201100007C, HHSN268201100008C, HHSN268201100009C, HHSN268201100010C, HHSN268201100011C, and HHSN268201100012C). The authors thank the staff and participants of the ARIC study for their important contributions. Funding for GENEVA was provided by National Human Genome Research Institute grant U01HG004402 (E.Boerwinkle). We thank H. Hobbs and J. Cohen for contributing control samples for replication genotyping, Nadav Ahituv for sharing RNA-seq data for both bat and mouse embryonic limb buds, Tommy Hyatt for designing the custom genotyping assay, and members of the UT Southwestern Transgenic Core facility, including John Ritter, Mylinh Nguyen, and Robert Hammer. Publicly available mouse embryonic expression analysis results were provided online at https://oncoscape.v3.sttrcancer.org/atlas.gs.washington.edu.mouse.rna/landing (24). The authors acknowledge the contributions and support of the Center for Excellence in Clubfoot Research at Scottish Rite for Children, including Shawne Faulks and Kristhen Atala. Fstl5 mutant rats were produced by the NIH Mutant Rat Resource at UT Southwestern Medical Center (R24RR03232601, R24OD011108, R01HD036022, and (5R01HD053889). This study was supported by funding from the Scottish Rite for Children Research Fund (J.J.R.), Shriners Hospital for Children (J.T.H), and the National Institutes of Health award R01HD043342 (J.T.H.).Peer reviewedPostprin

    Fluorescent Risedronate Analogues Reveal Bisphosphonate Uptake by Bone Marrow Monocytes and Localization Around Osteocytes In Vivo

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    Bisphosphonates are effective antiresorptive agents owing to their bone-targeting property and ability to inhibit osteoclasts. It remains unclear, however, whether any non-osteoclast cells are directly affected by these drugs in vivo. Two fluorescent risedronate analogues, carboxyfluorescein-labeled risedronate (FAM-RIS) and Alexa Fluor 647–labeled risedronate (AF647-RIS), were used to address this question. Twenty-four hours after injection into 3-month-old mice, fluorescent risedronate analogues were bound to bone surfaces. More detailed analysis revealed labeling of vascular channel walls within cortical bone. Furthermore, fluorescent risedronate analogues were present in osteocytic lacunae in close proximity to vascular channels and localized to the lacunae of newly embedded osteocytes close to the bone surface. Following injection into newborn rabbits, intracellular uptake of fluorescently labeled risedronate was detected in osteoclasts, and the active analogue FAM-RIS caused accumulation of unprenylated Rap1A in these cells. In addition, CD14high bone marrow monocytes showed relatively high levels of uptake of fluorescently labeled risedronate, which correlated with selective accumulation of unprenylated Rap1A in CD14+ cells, as well as osteoclasts, following treatment with risedronate in vivo. Similar results were obtained when either rabbit or human bone marrow cells were treated with fluorescent risedronate analogues in vitro. These findings suggest that the capacity of different cell types to endocytose bisphosphonate is a major determinant for the degree of cellular drug uptake in vitro as well as in vivo. In conclusion, this study shows that in addition to bone-resorbing osteoclasts, bisphosphonates may exert direct effects on bone marrow monocytes in vivo. © 2010 American Society for Bone and Mineral Researc

    Management of Pregnancy in a Patient with Severe Hemophilia Type A

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    Abstract Hemophilia type A is a rare inherited bleeding disorder with a diversity of clinical manifestations ranging from persistent bleeding after minor trauma, spontaneous deep muscle or joint hemorrhage, to intracranial hemorrhage. As an X-linked disorder, hemophilia is rare in females and therefore there is little experience with pregnancy and no standardized guidelines to prevent bleeding antepartum, at delivery, and postpartum. We report the clinical course and management of a woman with severe hemophilia A who on two occasions had uncomplicated pregnancies and vaginal deliveries at term utilizing bolus recombinant factor VIII concentrate

    An innovative approach to identifying learning needs for intrinsic CanMEDS roles in continuing professional development

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    Context: The CanMEDS framework promotes the development of competencies required to be an effective physician. However, it is still not well understood how to apply such frameworks to CPD contexts, particularly with respect to intrinsic competencies. Objective: This study explores whether physician narratives around challenging cases would provide information regarding learning needs that could help guide the development of CPD activities for intrinsic CanMEDS competencies. Methods: We surveyed medical and surgical specialists from Southern Ontario using an online survey. To assess perceived needs, participants were asked, ‘Describe three CPD topic you would like to learn about in the next 12 months’. To identify learning needs that may have arisen from problems encountered in practice, participants were asked, ‘Describe three challenging situations encountered in the past 12 months.’ Responses to the two open-ended questions were analyzed using thematic content analysis. Results: Responses were received from 411 physicians, resulting in 226 intrinsic CanMEDS codes for perceived learning needs and 210 intrinsic codes for challenges encountered in practices. Discrepancies in the frequency of intrinsic roles were observed between the two questions. Specifically, Leader (28%), Scholar (43%), and Professional (16%) roles were frequently described perceived learning needs, as opposed to challenges in practice (Leader: 3%; Scholar: 2%; and Professional: 8%. Conversely, Communicator 39%, Health Advocate 39%, and to a lesser extent Collaborator 11%) roles were frequently described in narratives surrounding challenges in practice, but appeared in <10% of descriptions of perceived learning needs (Communicator: 4%; Health Advocate 6%; Collaborator: 3%). Conclusion: The present study provides insight into potential learning needs associated with intrinsic CanMEDS competencies. Discrepancies in the frequency of intrinsic CanMEDS roles coded for perceived learning needs and challenges encountered in practice may provide insight into the selection and design of CPD activities
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