29 research outputs found

    I am Safe, so I will Help: Prosocial Impact of Marking Oneself Safe during Disasters

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    In the aftermath of disasters, people anxiously desire to immediately inquire or inform their loved ones about their safety. A social safety check system (SSCS) is a single-click safety status broadcasting mechanism on social platforms during crises. While millions of people use it globally during disasters, millions ignore the system. Research investigating the antecedents and consequents of SSCS adoption during disasters is scarce. We examine the unforeseen prosocial consequences (donations, volunteering, information sharing) of SSCS adoption. Based on theoretically established link between individuals’ state gratitude and prosocial tendencies, we posit that using SSCS would act as a gratitude intervention and will lead to higher prosocial intentions among adopters as compared to non-adopters. We test our hypotheses using scenario-based controlled experiment. A post-hoc study reveals the motivators and concerns in adoption of SSCS. The study investigates a sociotechnical tool in disaster management with impact on the societal welfare of disaster-hit communities

    Properties of a mixed-valent iron compound with the kagomélattice

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    An organically templated iron sulfate of the formula [HN(CH2)6NH][FeIIIFe2IIF6(SO4)2]·[H3O] possessing the kagomé lattice has been prepared and characterized by single-crystal crystallography and other techniques. This mixed-valent iron compound shows complex magnetic properties including spin-glass behavior and magnetic hysteresis. The low-temperature specific heat data show deviation from the T2 behavior found in two-dimensional frustrated systems. Simple calculations have been carried out to understand the properties of this kagomé compound

    Isolation of Progenitors that Exhibit Myogenic/Osteogenic Bipotency In Vitro by Fluorescence-Activated Cell Sorting from Human Fetal Muscle

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    Summary Fluorescence-activated cell sorting (FACS) strategies to purify distinct cell types from the pool of fetal human myofiber-associated (hMFA) cells were developed. We demonstrate that cells expressing the satellite cell marker PAX7 are highly enriched within the subset of CD45−CD11b−GlyA−CD31−CD34−CD56intITGA7hi hMFA cells. These CD45−CD11b−GlyA−CD31−CD34−CD56intITGA7hi cells lack adipogenic capacity but exhibit robust, bipotent myogenic and osteogenic activity in vitro and engraft myofibers when transplanted into mouse muscle. In contrast, CD45−CD11b−GlyA−CD31−CD34+ fetal hMFA cells represent stromal constituents of muscle that do not express PAX7, lack myogenic function, and exhibit adipogenic and osteogenic capacity in vitro. Adult muscle likewise contains PAX7+ CD45−CD11b−GlyA−CD31−CD34−CD56intITGA7hi hMFA cells with in vitro myogenic and osteogenic activity, although these cells are present at lower frequency in comparison to their fetal counterparts. The ability to directly isolate functionally distinct progenitor cells from human muscle will enable novel insights into muscle lineage specification and homeostasis

    Mapping of marketing channels and price ranges of commercially important finfish species in the coastal districts of West Bengal, India

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    This study was conducted to map the marketing channels and price ranges of some commercially important marine finfish species in two coastal districts of West Bengal. Nine commercially important marine finfish species were investigated. Different nodes were found to be involved in the marketing channel depending on the commercial value of the species, and a large gap was observed between the price in the retail market and the price received by the primary fisher. A large number of stakeholders are involved and find employment in the fish marketing chain as fishers, assemblers, processors, traders, wholesalers, retailers, transporters and loading and unloading workers. The price range of Bombay duck (Harpadon nephereus) was Rs. 25-50/kg at the auction centre level to Rs. 300-500/kg at the level of retailers in distant markets. For Silver pomfret (Pampus griseus), the price range had large fluctuations with Rs. 150-1000/kg at the auction centre level itself. When the commodity reaches the retailers in the distant markets, the price range was Rs. 350 to 1300/kg. The marketing chain for the flow of Orange-spotted grouper (Epinephelus coioides) was narrow with the nodes such as commission agents, assemblers, wholesalers and retailers, who play a major role in distributing the landings from the auction centre to domestic consumers. Processing and export nodes were not to be found. The price range was Rs. 200- 300/kg at the auction centre level to Rs. 400-500/kg at the retailer level in distant markets. The investigation exposed the range of actors required to bring the product from the landing centre through the different phases of distribution and delivery to final consumers. The value chain approach will be useful for the key actors such as fishers, managers and policymakers to streamline their operations cost-effectively, for increased earnings of the value chain actors and notable impacts on credit repayment

    Autophagy and EMT in cancer and metastasis: Who controls whom?

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    Metastasis consists of hallmark events, including Epithelial-Mesenchymal Transition (EMT), angiogenesis, initiation of inflammatory tumor microenvironment, and malfunctions in apoptosis. Autophagy is known to play a pivotal role in the metastatic process. Autophagy has pulled researchers towards it in recent times because of its dual role in the maintenance of cancer cells. Evidence states that cells undergoing EMT need autophagy in order to survive during migration and dissemination. Additionally, it orchestrates EMT markers in certain cancers. On the other side of the coin, autophagy plays an oncosuppressive role in impeding early metastasis. This review aims to project the interrelationship between autophagy and EMT. Targeting EMT via autophagy as a useful strategy is discussed in this review. Furthermore, for the first time, we have covered the possible reciprocating roles of EMT and autophagy and its consequences in cancer metastasis

    Reporting trends, practices, and resource utilization in neuroendocrine tumors of the prostate gland: a survey among thirty-nine genitourinary pathologists

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    Background: Neuroendocrine differentiation in the prostate gland ranges from clinically insignificant neuroendocrine differentiation detected with markers in an otherwise conventional prostatic adenocarcinoma to a lethal high-grade small/large cell neuroendocrine carcinoma. The concept of neuroendocrine differentiation in prostatic adenocarcinoma has gained considerable importance due to its prognostic and therapeutic ramifications and pathologists play a pivotal role in its recognition. However, its awareness, reporting, and resource utilization practice patterns among pathologists are largely unknown. Methods: Representative examples of different spectrums of neuroendocrine differentiation along with a detailed questionnaire were shared among 39 urologic pathologists using the survey monkey software. Participants were specifically questioned about the use and awareness of the 2016 WHO classification of neuroendocrine tumors of the prostate, understanding of the clinical significance of each entity, and use of different immunohistochemical (IHC) markers. De-identified respondent data were analyzed. Results: A vast majority (90%) of the participants utilize IHC markers to confirm the diagnosis of small cell neuroendocrine carcinoma. A majority (87%) of the respondents were in agreement regarding the utilization of type of IHC markers for small cell neuroendocrine carcinoma for which 85% of the pathologists agreed that determination of the site of origin of a high-grade neuroendocrine carcinoma is not critical, as these are treated similarly. In the setting of mixed carcinomas, 62% of respondents indicated that they provide quantification and grading of the acinar component. There were varied responses regarding the prognostic implication of focal neuroendocrine cells in an otherwise conventional acinar adenocarcinoma and for Paneth cell-like differentiation. The classification of large cell neuroendocrine carcinoma was highly varied, with only 38% agreement in the illustrated case. Finally, despite the recommendation not to perform neuroendocrine markers in the absence of morphologic evidence of neuroendocrine differentiation, 62% would routinely utilize IHC in the work-up of a Gleason score 5 + 5 = 10 acinar adenocarcinoma and its differentiation from high-grade neuroendocrine carcinoma. Conclusion: There is a disparity in the practice utilization patterns among the urologic pathologists with regard to diagnosing high-grade neuroendocrine carcinoma and in understanding the clinical significance of focal neuroendocrine cells in an otherwise conventional acinar adenocarcinoma and Paneth cell-like neuroendocrine differentiation. There seems to have a trend towards overutilization of IHC to determine neuroendocrine differentiation in the absence of neuroendocrine features on morphology. The survey results suggest a need for further refinement and development of standardized guidelines for the classification and reporting of neuroendocrine differentiation in the prostate gland

    Associação entre marcadores inflamatórios e fatores de risco cardiovascular em mulheres de Kolkata, W.B, Índia

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    FUNDAMENTO: Recentes pesquisas tem se concentrado no uso de biomarcadores inflamatórios na previsão de risco cardiovascular. Entretanto, a informação é escassa em relação à associação entre esses marcadores inflamatórios com outros fatores de risco cardiovasculares em indianos asiáticos, particularmente em mulheres. OBJETIVO: Explorar a associação entre marcadores inflamatórios tais como proteína C-reativa de alta sensibilidade (PCR-as) e contagem de leucócitos (LEU) e fatores de risco cardiovascular tais como adiposidade geral e central, pressão arterial, variáveis lipídicas e lipoproteicas e glicemia de jejum. MÉTODOS: Conduzimos uma análise transversal de 100 mulheres com idade entre 35-80 anos. As participantes foram selecionadas através da metodologia de amostragem por cluster, de 12 distritos urbanos selecionadas ao acaso na Corporação Municipal de Kolkata, Índia. RESULTADOS: A PCR-as apresentou uma associação significante com o índice de massa corporal (IMC) (p < 0,001) e circunferência da cintura (CC) (p = 0,002). Associações significantes inversas foram observadas entre a lipoproteína de alta densidade colesterol (HDL-c) e ambos marcadores inflamatórios PCR-as (p = 0,031) e LEU (p = 0,014). A apo-lipoproteína A1 (Apo A1) também estava negativamente associada com a PCR-as. A contagem de leucócitos apresentou uma correlação significante com a glicemia de jejum e a razão colesterol total (CT) /HDL-C. Usando regressão logística ajustada para idade, IMC (odds ratio/OR, 1,186; intervalo de confiança/IC, 1,046-1,345; p=0,008) e LEU (OR, 1,045; IC, 1,005-1,087; p=0,027) foram as covariantes significantemente associadas com a PCR-as. CONCLUSÃO: No presente estudo, os fatores de risco tais como IMC, CC e HDL-c e Apo-A1 mostraram uma associação significante com PCR-as. A contagem de leucócitos estava significantemente associada com os níveis de HDL-c, glicemia de jejum, razão CT/HDL-c em mulheres
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