Does the US EXIM Bank Really Promote US Exports?

The file attached to this record is the author's final peer reviewed version. The Publisher's final version can be found by following the DOI link.This paper investigates the impact of US Export-Import Bank (EXIM) on US exports particularly in the wake of international competition from foreign national export credit agencies (ECAs). We employ a gravity framework on a country-industry-year-level panel dataset that matches EXIM authorizations with US bilateral exports. Our results depict the general ineffectiveness of the Bank in promoting exports within and across industries. Some heterogeneities behind the general finding are also uncovered: industries other than aerospace parts and products are more likely to benefit from EXIM authorizations, and EXIM authorizations to larger businesses seem to be more effective in encouraging exports. Furthermore, we find no evidence that explains the role of EXIM in encouraging US exports by offsetting foreign ECA competition. These results are neither affected by competing countries’ membership to the OECD Arrangement nor by the size of American firms that received EXIM support. Our results cast doubt on the ubiquitously positive claims made by the Bank and its supporters, yet also provide policy lessons for countries that are either in the inception stages of establishing their own ECAs or are now placing greater importance on ECA financing in encouraging exports

Credit Constraints and FDI Spillovers in China

This paper examines whether credit constraints affect Chinese firms' absorption of productivity spillovers from foreign firms. Using firm-level data for 2001-2005, we find evidence of positive spillovers originating from FDI from countries other than Hong Kong, Macau and Taiwan for non-state owned Chinese firms operating in the same industry and province. Our main finding is that domestic firms operating in industries characterised by a greater reliance on external finance, our measure of credit constraints, enjoy lower (and even negative) spillovers from the activity of foreign-owned firms. This result is robust to the inclusion of a wide variety of other industry-level characteristics interacting with the activity of foreign firms

Mitigating information frictions in trade:Evidence from export credit guarantees

Information frictions make foreign trade risky. In particular, the risk of buyer default deters firms from selling abroad. To address this issue, many countries offer export credit guarantees to provide insurance to exporters. In this paper, we investigate the causal effects of guarantees by exploiting a quasi-natural experiment in Sweden and rich register data on guarantees, firms and trade. Estimates from a fuzzy regression discontinuity design show large positive effects on the probability of exporting and the value of exports to the destination for which the guarantees are issued. These results are robust to an alternative approach using a difference-in-differences matching estimator. Further findings suggest that guarantees impact firms heterogeneously and play an important role in resolving buyer default risk and easing liquidity constraints. Larger impacts are observed in non-OECD countries, on smaller, liquidity constrained exporters and for firms selling products that face a relatively high cost of buyer default.</p

Changes in morphology of white blood cells on peripheral smear in COVID-19 infection

Background: COVID-19 is an infectious disease caused by a newly discovered coronavirus, and has spread around the world in a deadly pandemic. The first case of COVID-19 was reported from Wuhan, China in December 2019. This is also called as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) because of its homology with SARS virus. The most common hematological manifestation of coronavirus is lymphopenia which is due to depletion of lymphocytes by coronavirus infection. Other manifestations are neutrophilia and mild thrombocytopenia. Literature is full of quantitative hematological parameters but the researches on morphology of white blood cells is still ongoing. We at our institute done study on 60 confirmed positive cases of COVID-19, and analyzed those peripheral smears in terms of morphology of white blood cells.Methods: The study was done using peripheral smear staining with methylene blue stain and was screened for various changes in white blood cells in peripheral smear.Results: Changes in the white blood cells were examined in the peripheral smear and findings were made in the tabular form.Conclusions: To conclude that all these changes are due to the virus infecting them or are secondary to pathogenesis of COVID disease, needs to be evaluated by larger studies

Retinal ganglion cell protection against endothelin-1-induced injury by magnesium acetyl taurinate in rats / Dr. Sabrilhakim Sidek … [et al.]

Glaucoma, the leading cause of irreversible blindness, is characterized by apoptotic death of retinal ganglion cells (RGCs). Elevated levels of endothelin1 (ET1), a potent vasoconstrictor, have been detected in the eyes and plasma of glaucoma patients. Increased endothelin 1 causes retinal ischemia increased expression of nitric oxide synthase (NOS) isoforms and oxidative stress, which culminate into RGC apoptosis. Considering the vasodilating, and antioxidant properties of magnesium acetyltaurinate (MgAT) we hypothesized that it can prevent endothelin 1-induced vasospasm, improve retinal perfusion and reduce retinal oxidative stress by altering expression of 3 isoforms of NOS. Rats received single intravitreal injection of vehicle/ET1/ET1 with MgAT. Subsequently, histopathological examination of optic nerve were done to detect the extent of optic nerve damage. Immunochemical detection of NOS isoforms and estimation of NO and antioxidants was done in retina. It was observed that MgAT reduces retinal and optic nerve damage. This neuroprotective effect of MgAT was associated with reduced expression of NOS1 and 2, increased expression of NOS3 and reduced retinal oxidative stress. The results of this study were published in a Q1 journal and were presented in 2 national and 3 international conferences. One student has completed her Master's research work and has been promoted to PhD

Retinal ganglion cell protection against endothelin-1-induced injury by magnesium acetyl taurinate in rats / Dr. Sabrilhakim Sidek … [et al.]

Glaucoma, the leading cause of irreversible blindness, is characterized by apoptotic death of retinal ganglion cells (RGCs). Elevated levels of endothelin1 (ET1), a potent vasoconstrictor, have been detected in the eyes and plasma of glaucoma patients. Increased endothelin 1 causes retinal ischemia increased expression of nitric oxide synthase (NOS) isoforms and oxidative stress, which culminate into RGC apoptosis. Considering the vasodilating, and antioxidant properties of magnesium acetyltaurinate (MgAT) we hypothesized that it can prevent endothelin 1-induced vasospasm, improve retinal perfusion and reduce retinal oxidative stress by altering expression of 3 isoforms of NOS. Rats received single intravitreal injection of vehicle/ET1/ET1 with MgAT. Subsequently, histopathological examination of optic nerve were done to detect the extent of optic nerve damage. Immunochemical detection of NOS isoforms and estimation of NO and antioxidants was done in retina. It was observed that MgAT reduces retinal and optic nerve damage. This neuroprotective effect of MgAT was associated with reduced expression of NOS1 and 2, increased expression of NOS3 and reduced retinal oxidative stress. The results of this study were published in a Q1 journal and were presented in 2 national and 3 international conferences. One student has completed her Master's research work and has been promoted to PhD

A Review: Protein Interaction & Behavior Assessment in Host Cells after Novel Drug Compound Administration using Systems Biology Approach

To understand complex biological systems requires the integration of experimental and computational research; in other words systems biology approach. Computational biology, through via different software helps in exploration more than one gene expression at a time and also understanding the connectivity, Systems Biology provides a powerful foundation from which to address critical scientific questions head-on. The reviews in this Insight cover many different aspects of this energetic field, although all, in one way or another, illuminate the functioning of modular circuits, including their robustness, design and manipulation. Computational systems biology addresses questions fundamental to our understanding of life, yet progress here will lead to practical innovations in medicine, drug discovery and engineering, In this study we have evaluated th

Credit constraints and spillovers from foreign firms in China

This paper examines whether credit constraints affect Chinese firms’ absorption of productivity spillovers originating from the activity of foreign-owned firms. Using firm-level data for 2001–2005, we find evidence of positive spillovers originating from foreign-owned firms from countries other than Hong Kong, Macau and Taiwan for non-state owned Chinese firms operating in the same industry and province. Using an index of external finance dependence to measure credit constraints, we find that only non-state-owned firms operating in industries with external finance dependence below the index median exhibit significantly positive spillovers from the activity of foreign firms

Expanding the clinical and genetic spectrum of ALPK3 variants: Phenotypes identified in pediatric cardiomyopathy patients and adults with heterozygous variants

Introduction: Biallelic damaging variants in ALPK3, encoding alpha-protein kinase 3, cause pediatric-onset cardiomyopathy with manifestations that are incompletely defined. Methods and Results: We analyzed clinical manifestations of damaging biallelic ALPK3 variants in 19 pediatric patients, including nine previously published cases. Among these, 11 loss-of-function (LoF) variants, seven compound LoF and deleterious missense variants, and one homozygous deleterious missense variant were identified. Among 18 live-born patients, 8 exhibited neonatal dilated cardiomyopathy (44.4%; 95% CI: 21.5%-69.2%) that subsequently transitioned into ventricular hypertrophy. The majority of patients had extracardiac phenotypes, including contractures, scoliosis, cleft palate, and facial dysmorphisms. We observed no association between variant type or location, disease severity, and/or extracardiac manifestations. Myocardial histopathology showed focal cardiomyocyte hypertrophy, subendocardial fibroelastosis in patients under 4 years of age, and myofibrillar disarray in adults. Rare heterozygous ALPK3 variants were also assessed in adult-onset cardiomyopathy patients. Among 1548 Dutch patients referred for initial genetic analyses, we identified 39 individuals with rare heterozygous ALPK3 variants (2.5%; 95% CI: 1.8%-3.4%), including 26 missense and 10 LoF variants. Among 149 U.S. patients without pathogenic variants in 83 cardiomyopathy-related genes, we identified six missense and nine LoF ALPK3 variants (10.1%; 95% CI: 5.7%-16.1%). LoF ALPK3 variants were increased in comparison to matched controls (Dutch cohort, P = 1.6×10−5; U.S. cohort, P = 2.2×10−13). Conclusion: Biallelic damaging ALPK3 variants cause pediatric cardiomyopathy manifested by DCM transitioning to hypertrophy, often with poor contractile function. Additional extracardiac features occur in most patients, including musculoskeletal abnormalities and cleft palate. Heterozygous LoF ALPK3 variants are enriched in adults with cardiomyopathy and may contribute to their cardiomyopathy. Adults with ALPK3 LoF variants therefore warrant evaluations for cardiomyopathy

LEARN: A multi-centre, cross-sectional evaluation of Urology teaching in UK medical schools

OBJECTIVE: To evaluate the status of UK undergraduate urology teaching against the British Association of Urological Surgeons (BAUS) Undergraduate Syllabus for Urology. Secondary objectives included evaluating the type and quantity of teaching provided, the reported performance rate of General Medical Council (GMC)-mandated urological procedures, and the proportion of undergraduates considering urology as a career. MATERIALS AND METHODS: LEARN was a national multicentre cross-sectional study. Year 2 to Year 5 medical students and FY1 doctors were invited to complete a survey between 3rd October and 20th December 2020, retrospectively assessing the urology teaching received to date. Results are reported according to the Checklist for Reporting Results of Internet E-Surveys (CHERRIES). RESULTS: 7,063/8,346 (84.6%) responses from all 39 UK medical schools were included; 1,127/7,063 (16.0%) were from Foundation Year (FY) 1 doctors, who reported that the most frequently taught topics in undergraduate training were on urinary tract infection (96.5%), acute kidney injury (95.9%) and haematuria (94.4%). The most infrequently taught topics were male urinary incontinence (59.4%), male infertility (52.4%) and erectile dysfunction (43.8%). Male and female catheterisation on patients as undergraduates was performed by 92.1% and 73.0% of FY1 doctors respectively, and 16.9% had considered a career in urology. Theory based teaching was mainly prevalent in the early years of medical school, with clinical skills teaching, and clinical placements in the later years of medical school. 20.1% of FY1 doctors reported no undergraduate clinical attachment in urology. CONCLUSION: LEARN is the largest ever evaluation of undergraduate urology teaching. In the UK, teaching seemed satisfactory as evaluated by the BAUS undergraduate syllabus. However, many students report having no clinical attachments in Urology and some newly qualified doctors report never having inserted a catheter, which is a GMC mandated requirement. We recommend a greater emphasis on undergraduate clinical exposure to urology and stricter adherence to GMC mandated procedures