73 research outputs found

    Mutual Funds and Market Variables: A Critical Review of Literature

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    The growth of mutual fund industry has shown a remarkable increase since past few years. The current study reviews the performance and role of mutual funds at both micro and macro level. The study sheds light on the mutual funds and their association with market variables and macro economy.  The study discusses the great work of literature in context of fund-return, fund-volatility, funds-variables-economy and predictive ability of mutual fund flows. The study further proposes to examine these relationship in context of developing and emerging markets using PVAR and GMM models. The findings of this study will benefit investors, policy makers and academicians.        Key words: Mutual fund flows, Market returns, Macro economy.

    Gold and Exchange Rate Volatility: A Critical Review of Literature and Methodological Advances

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    The current study reviews the gold-exchange rate association with a wider prospect in case of Pakistan. Gold prices have shown a remarkable increase since past few years. Because gold is believed as exchange rate hedge, and instability of Pakistan rupee persists for long hence it is crucial to study gold-exchange rate relationship in Pakistan. The study discusses the great work of literature in context of causality, hedge and safe haven ability, predictive ability and volatility spillover effect of gold and exchange rate to stock indices of micro firms and industries. The study further proposes to examine hedge and safe haven ability of gold and identify impact of gold and exchange rate volatility on stock returns of micro sector using GARCH model. The findings of this study will benefit investors, policy makers and academicians. Key words: Gold, Exchange rate, Pakistan.

    N-Ethyl-4-methyl-N-(3-methyl­phen­yl)benzene­sulfonamide

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    The title compound, C16H19NO2S, crystallizes with two crystallographically independent mol­ecules in the asymmetric unit in which the dihedral angles between the planes defined by the aromatic rings are 35.3 (2) and 42.5 (2)°. In the crystal, inter­molecular C—H⋯O hydrogen bonds stabilize the packing

    N-{4-[(2-Meth­oxy­phen­yl)sulfamo­yl]phen­yl}acetamide

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    In the title compound, C15H16N2O4S, the S atom has a distorted tetra­hedral geometry [maximum deviation: O—S—O = 118.25 (7)°]. The two aromatic rings make a dihedral angle of 62.67 (10)° with each other. An intra­molecular N—H⋯O hydrogen bond forms an S(6) ring motif. In the crystal, mol­ecules form centrosymmetric dimers via pairwise N—H⋯O inter­actions, forming an R 2 2(8) ring motif, and these dimers are connected by N—H⋯O hydrogen bonds, generating a three-dimensional network. Furthermore, a weak C—H⋯π inter­action helps to reinforce the crystal structure. The O atom in the acetamide group is disordered over two positions with major and minor occupancies of 0.52 (5) and 0.48 (5), respectively

    A PROSPECTIVE OBSERVATIONAL STUDY ON THE ASSESSMENT OF POTENTIAL DRUG-DRUG INTERACTIONS AND MANAGEMENT OF POST-COMPLICATIONS IN STROKE PATIENTS AT A TERTIARY CARE TEACHING HOSPITAL

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    Objective: The objective of the study is to determine the occurrence, frequency, and severity of significant drug-drug interactions in stroke patients, with an emphasis on post complications and their symptomatic management. Methods: A prospective observational study was carried out for 6 mo at Osmania General Hospital, a Tertiary Care Teaching Hospital. The prescriptions taken by stroke patients throughout their hospital stay were analyzed for possible interactions using-Micromedex-2 (Thomson Reuters) × 2.0. Results: A total of 130 prescriptions was analyzed in the study in which 141 drug-drug interactions were found with a male predominance of 85.4%. The majority of interactions were of moderate severity (74.46%) and pharmacokinetics (67.37%) in nature. Among the clinical consequences, decreased atorvastatin efficacy (49.10%) was found to be the highest. The class of drugs most commonly involved in drug-drug interactions was found to be anti-epileptics and statins. 60.15% of the study population were identified with one complication, among which seizures account for 15% of patients. All the complications allied with the condition were treated with drug classes in the study population. Conclusion: This study highlighted the exigency for screening prescriptions of cerebrovascular accident patients for potential drug-drug interactions (pDDIs). Brain edema and seizure were the most accountable complications identified in the study population. The early detection of these problems can improve stroke outcomes and can reduce the mortality or disability rate

    N-Benzyl-4-methyl-N-(4-methyl­phen­yl)benzene­sulfonamide

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    In the title mol­ecule, C21H21NO2S, the phenyl ring makes the dihedral angles of 74.13 (11) and 80.16 (11)° with the two benzene rings, which are inclined at an angle of 43.73 (10)° with respect to each other. In the crystal, mol­ecules are linked by inter­molecular C—H⋯O hydrogen bonds along the [010] direction. In addition, a weak C—H⋯π (arene) inter­action is observed

    Predicting Bankruptcy Using Z-Score and Z Double Prime (Z”): A Study of Pakistan Stock Exchange

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    Due to the unprecedented happenings and dynamic conditions of international economic system, firms are always at the verge of bankruptcy no matter how sound they are, their sustainability is always in jeopardy. Besides, lenders are continuously raising red flags and giving consistent warnings about possible perils of corporate failure due to fragile economic conditions and increasing debt levels in both corporate and individual businesses these days. Hence there was an exigency to ‘develop indicators for monitoring long term progress and sustainability of companies. Thereof it would contribute in illustrating to business analysts, firm stakeholders about the relevance of embracing these active checks for predicting bankruptcy as a sustainable business practice. This created a bizarre cult to look into the matter seriously. For this there is no mantra, no clever feats, sure-fire quick strategies. Instead there are well-defined, simple, systematic and sophisticated models to assess sustainability of companies. Thus, to avoid the tide of massive/substantial corporate failure and any future catastrophe; there is a dire need to identify the most suitable and preeminent model that can truly forecast the likelihood of default ahead of time in given circumstances. And, mainstay of this study is to provide an answer of question in hand by comparing two most venerable model choices i.e. Altman’s Z-score and Z double prime (Z”)

    Distinct microRNA and protein profiles of extracellular vesicles secreted from myotubes from morbidly obese donors with type 2 diabetes in response to electrical pulse stimulation

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    Lifestyle disorders like obesity, type 2 diabetes (T2D), and cardiovascular diseases can be prevented and treated by regular physical activity. During exercise, skeletal muscles release signaling factors that communicate with other organs and mediate beneficial effects of exercise. These factors include myokines, metabolites, and extracellular vesicles (EVs). In the present study, we have examined how electrical pulse stimulation (EPS) of myotubes, a model of exercise, affects the cargo of released EVs. Chronic low frequency EPS was applied for 24 h to human myotubes isolated and differentiated from biopsy samples from six morbidly obese females with T2D, and EVs, both exosomes and microvesicles (MV), were isolated from cell media 24 h thereafter. Size and concentration of EV subtypes were characterized by nanoparticle tracking analysis, surface markers were examined by flow cytometry and Western blotting, and morphology was confirmed by transmission electron microscopy. Protein content was assessed by high-resolution proteomic analysis (LC-MS/MS), non-coding RNA was quantified by Affymetrix microarray, and selected microRNAs (miRs) validated by real time RT-qPCR. The size and concentration of exosomes and MV were unaffected by EPS. Of the 400 miRs identified in the EVs, EPS significantly changed the level of 15 exosome miRs, of which miR-1233-5p showed the highest fold change. The miR pattern of MV was unaffected by EPS. Totally, about 1000 proteins were identified in exosomes and 2000 in MV. EPS changed the content of 73 proteins in exosomes, 97 in MVs, and of these four were changed in both exosomes and MV (GANAB, HSPA9, CNDP2, and ATP5B). By matching the EPS-changed miRs and proteins in exosomes, 31 targets were identified, and among these several promising signaling factors. Of particular interest were CNDP2, an enzyme that generates the appetite regulatory metabolite Lac-Phe, and miR-4433b-3p, which targets CNDP2. Several of the regulated miRs, such as miR-92b-5p, miR-320b, and miR-1233-5p might also mediate interesting signaling functions. In conclusion, we have used a combined transcriptome-proteome approach to describe how EPS affected the cargo of EVs derived from myotubes from morbidly obese patients with T2D, and revealed several new factors, both miRs and proteins, that might act as exercise factors

    Molecular analysis of pediatric brain tumors identifies microRNAs in pilocytic astrocytomas that target the MAPK and NF-kappa B pathways

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    RT-qPCR confirms (a) up-regulation of miR-34a, miR-146a, miR-542-3p and miR-503 in pilocytic astrocytomas. (b) low expression of miR-124*, miR-129 and miR-129* in pilocytic astrocytomas. Relative expression shown as Log2 fold change compared to normal adult cerebellum and frontal lobe (normalized to miR-423-3p). Data represent two technical replicates ± SD. (ZIP 516 kb

    Status of HIV and hepatitis C virus infections among prisoners in the Middle East and North Africa: review and synthesis.

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    INTRODUCTION: The status of HIV and hepatitis C virus (HCV) infections among incarcerated populations in the Middle East and North Africa (MENA) and the links between prisons and the HIV epidemic are poorly understood. This review synthesized available HIV and HCV data in prisons in MENA and highlighted opportunities for action. METHODS: The review was based on data generated through the systematic searches of the MENA HIV/AIDS Epidemiology Synthesis Project (2003 to December 15, 2015) and the MENA HCV Epidemiology Synthesis Project (2011 to December 15, 2015). Sources of data included peer-reviewed publications and country-level reports and databases. RESULTS AND DISCUSSION: We estimated a population of 496,000 prisoners in MENA, with drug-related offences being a major cause for incarceration. Twenty countries had data on HIV among incarcerated populations with a median prevalence of 0.6% in Afghanistan, 6.1% in Djibouti, 0.01% in Egypt, 2.5% in Iran, 0% in Iraq, 0.1% in Jordan, 0.05% in Kuwait, 0.7% in Lebanon, 18.0% in Libya, 0.7% in Morocco, 0.3% in Oman, 1.1% in Pakistan, 0% in Palestine, 1.2% in Saudi Arabia, 0% in Somalia, 5.3% in Sudan and South Sudan, 0.04% in Syria, 0.05% in Tunisia, and 3.5% in Yemen. Seven countries had data on HCV, with a median prevalence of 1.7% in Afghanistan, 23.6% in Egypt, 28.1% in Lebanon, 15.6% in Pakistan, and 37.8% in Iran. Syria and Libya had only one HCV prevalence measure each at 1.5% and 23.7%, respectively. There was strong evidence for injecting drug use and the use of non-sterile injecting-equipment in prisons. Incarceration and injecting drugs, use of non-sterile injecting-equipment, and tattooing in prisons were found to be independent risk factors for HIV or HCV infections. High levels of sexual risk behaviour, tattooing and use of non-sterile razors among prisoners were documented. CONCLUSIONS: Prisons play an important role in HIV and HCV dynamics in MENA and have facilitated the emergence of large HIV epidemics in at least two countries, Iran and Pakistan. There is evidence for substantial but variable HIV and HCV prevalence, as well as risk behaviour including injecting drug use and unprotected sex among prisoners across countries. These findings highlight the need for comprehensive harm-reduction strategies in prisons
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