75 research outputs found
Interview Shocks and Shockwaves
This article uses a postmodern lens to examine shocks, cognitive emotional reactions of the interviewer to the unexpected, and shows how shocks and shockwaves, responses to shocks, are related to the process of Othering. The concepts master narrative, coherence, Othering, positionality, and nonunitary subjectivity are used to present the analysis. Using excerpts from research interviews as illustrations, the article describes three types of shocks - those based on a violation of a social taboo, those deriving from professional role reversal, and those that are based on stereotypes. In addition, it explains three types of responses to shock - avoidance, circular strategies, and acceptance and moving on. The article shows how interviewees resist being Othered and, in an attempt to negotiate a more equitable interview situation, administer shocks. Interviewer expectations of master narratives and the process of Othering prevent interviewers from hearing complex, multifaceted, and atypical stories
Developing a poverty-aware pedagogy : from paradigm to reflexive practice in post-academic social work education
Social work scholars haveargued that poverty reminds us of the necessary commitmentto educate professional social workers in the development of poverty-aware practices. Being inspired by a conceptual framework thatcaptureshow poverty-awareness can be the subject of teaching in social work programs, this article offers a qualitative analysis of the reflections being made by a cohort of students about their learning process in a post-academiccourse. Five common themesare discussed: (1) from recognizing micro-aggressions to tackling macro-aggressions, (2) poverty is an instance of social injustice and requires collective indignation, (3) notions of commitment and solidarityare ambiguous, (4) poverty is an instance of social inequality rather than merely social exclusion, and (5) from being heroic agents tosocial change ‘from within’. Based on these findings, we raise thelessons learned for social work educators
Children with idiopathic short stature have significantly different gut microbiota than their normal height siblings: a case-control study
ObjectivesTo investigate the role of gut microbiota (GM) in pathogenesis of idiopathic short stature (ISS) by comparing GM of ISS children to their normal-height siblings.MethodsThis case-control study, conducted at the Schneider Children’s Medical Center’s Institute for Endocrinology and Diabetes between 4/2018-11/2020, involved 30 pairs of healthy pre-pubertal siblings aged 3-10 years, each comprising one sibling with ISS and one with normal height. Outcome measures from fecal analysis of both siblings included GM composition analyzed by 16S rRNA sequencing, fecal metabolomics, and monitoring the growth of germ-free (GF) mice after fecal transplantation.ResultsFecal analysis of ISS children identified higher predicted levels of genes encoding enzymes for pyrimidine, purine, flavin, coenzyme B, and thiamine biosynthesis, lower levels of several amino acids, and a significantly higher prevalence of the phylum Euryarchaeota compared to their normal-height siblings (p<0.001). ISS children with higher levels of Methanobrevibacter, the dominant species in the archaeal gut community, were significantly shorter in stature than those with lower levels (p=0.022). Mice receiving fecal transplants from ISS children did not experience stunted growth, probably due to the eradication of Methanobrevibacter caused by exposure to oxygen during fecal collection.DiscussionOur findings suggest that different characteristics in the GM may explain variations in linear growth. The varying levels of Methanobrevibacter demonstrated within the ISS group reflect the multifactorial nature of ISS and the potential ability of the GM to partially explain growth variations. The targeting of specific microbiota could provide personalized therapies to improve growth in children with ISS
Clonally stable Vκ allelic choice instructs Igκ repertoire.
Although much has been done to understand how rearrangement of the Igκ locus is regulated during B-cell development, little is known about the way the variable (V) segments themselves are selected. Here we show, using B6/Cast hybrid pre-B-cell clones, that a limited number of V segments on each allele is stochastically activated as characterized by the appearance of non-coding RNA and histone modifications. The activation states are clonally distinct, stable across cell division and developmentally important in directing the Ig repertoire upon differentiation. Using a new approach of allelic ATAC-seq, we demonstrate that the Igκ V alleles have differential chromatin accessibility, which may serve as the underlying basis of clonal maintenance at this locus, as well as other instances of monoallelic expression throughout the genome. These findings highlight a new level of immune system regulation that optimizes gene diversity
Poverty-Aware Programs in Social Service Departments in Israel: A Rapid Evidence Review of Outcomes for Service Users and Social Work Practice
Critical perspectives and practices are fundamental to social work, yet there are only scarce examples of direct critical practice in public social services, and even fewer empirical evaluations of their outcomes for service users and social workers. This article presents a rapid evidence review of 25 evaluation studies of five programs that operate in the social services departments in Israel according to the principles of the Poverty-Aware Paradigm (PAP). The PAP is a critical paradigm for direct social work practice with people living in poverty that was implemented in the welfare services by the Ministry of Welfare, targeting over 14,000 service users. The evaluation studies we reviewed encompass an overall quantitative sample of 4612 service users and 1363 professionals, and a qualitative sample of 420 service users and 424 professionals. The findings present: (1) the program’s outcomes for service users in terms of relationship with social workers, financial circumstances, family relations, and children’s safety; and (2) the program’s impact on social workers’ attitudes and practices. Finally, we discuss the lessons learned regarding social workers’ role in combatting poverty, the construction of success in interventions with people in poverty, and the article’s limitations
F11R expression upon hypoxia is regulated by RNA editing.
F11R is a cell adhesion molecule found on the surface of human platelets. It plays a role in platelet aggregation, cell migration and cell proliferation. F11R is subjected to RNA editing, a post-transcriptional modification which affects RNA structure, stability, localization, translation and splicing. RNA editing in the 3'UTR of F11R and RNA levels are increased upon hypoxia. We therefore set to examine if RNA editing plays a role in the increase of F11R RNA seen upon hypoxic conditions. We show that ADAR1, but not ADAR2, takes part in the editing of F11R however editing alone is not sufficient for obtaining an elevation in RNA levels. In addition we show that hyper-edited mature mRNAs are retained in the nucleus and are associated with p54(nrb). We therefore conclude that hypoxia-induced edited RNAs of F11R are preferentially stabilized and accumulate in the nucleus preventing their export to the cytoplasm for translation. This mechanism may be used by additional proteins in the cell as part of the cell's effort to reduce metabolism upon hypoxic stress
Peritoneal Adhesion and Angiogenesis in Ovarian Carcinoma Are Inversely Regulated by Hyaluronan: The Role of Gonadotropins1
Ovarian carcinoma is the leading cause of death among gynecologic cancers. Although transformation of the outer ovarian epithelium was linked with ovulation, the disease is significantly more prevalent and severe in postmenopausal women. We postulated that menopause could augment ovarian cancer progression through the effects of gonadotropins on multifocal seeding to the mesothelial layer lining the peritoneum. This seeding is mediated by integrins as well as by CD44 interaction with hyaluronan (HA). Here, we report the effect of gonadotropins on HA synthesis and degradation and on peritoneal adhesion. A significant concentration- and time-dependent induction in expression levels of HA synthases (HASs) and hyaluronidases (Hyals) was observed in vitro on stimulation of human epithelial ovarian carcinoma cells by gonadotropins. Hormonal regulation of HA-mediated adhesion was manifested in vivo as well, by fluorescence microscopy of stained MLS multicellular tumor spheroids. The number of spheroids adhered to the mesothelium of ovariectomized CD-1 nude mice 9.5 hours after intraperitoneal insertion was significantly higher than in nonovariectomized mice. Inhibition of HA synthesis by 6-diazo-5-oxo-1-norleucine (DON) both in spheroids and ovariectomized mice significantly reduced the number of adhered spheroids. Thus, the change in the hormonal environment during menopause assists in HA-dependent adherence of ovarian cancer spheroids onto the peritoneum. However, HA is antiangiogenic and it can significantly suppress tumor progression. Accordingly, angiogenesis of the adhered spheroids was significantly elevated in DON-treated tumors. These results can explain the selective pressure that can lead to simultaneously increased tumor expression of both HASs and Hyals
Whole-Genome Inter-Sex Variation in Russian Sturgeon (Acipenser gueldenstaedtii)
The Russian sturgeon (Acipenser gueldenstaedtii, AG) is an endangered fish species increasingly raised on fish farms for black caviar. Understanding the process of sex determination in AG is, therefore, of scientific and commercial importance. AG lacks sexual dimorphism until sexual maturation and has a predominantly octoploid genome without a definite sex chromosome. A conserved short female-specific genomic sequence was recently described, leading to the development of a genetic sex marker. However, no biological function has been reported for this sequence. Thus, the mechanism of sex determination and the overall inter-sex genomic variation in AG are still unknown. To comprehensively analyze the inter-sex genomic variation and assess the overall inter-species variation between AG and A. ruthenus (AR, sterlet), a related tetraploid sturgeon species, we performed whole-genome sequencing on DNA from 10 fish-farm-raised adult AG (5 males and 5 females). We produced a partially assembled, ~2390 MBp draft genome for AG. We validated in AG the female-specific region previously described in AR. We identified ~2.8 million loci (SNP/indels) varying between the species, but only ~7400 sex-associated loci in AG. We mapped the sex-associated AG loci to the AR genome and identified 15 peaks of sex-associated variation (10 kb segments with 30 or more sex-associated variants), 1 of which matched the previously reported sex-variable region. Finally, we identified 14 known and predicted genes in proximity to these peaks. Our analysis suggests that one or more of these genes may have functional roles in sex determination and/or sexual differentiation in sturgeons. Further functional studies are required to elucidate these roles
Harnessing Competing Endocytic Pathways for Overcoming the Tumor-Blood Barrier: Magnetic Resonance Imaging and Near-Infrared Imaging of Bifunctional Contrast Media
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