375 research outputs found
Vascular Surprises in Calot’s Triangle during Laproscopic Choleystectomy
Background: To identify the vascular anomalies,variations of Calot’s triangle during laparoscopic cholecystectomy
Methods: In this prospective observational study one thousand patients with a diagnosis of cholithiasis were included. Exclusion criteria were patients younger than 12 years and older than 80 year. Calot’s triangle dissection was done meticulously.Cystic artery and hepatic artery anomalies and variations were observed and analyzed on SPSS 21.
Results: The age varied from 12 to 80 years. On the basis of distributional variation the cystic artery was single in 90% cases, branched in 7% cases and absent in 3% cases. On positional variations the cystic artery was superomedial to the cystic duct in 85% cases, anterior in 7% cases, and posterior in 3% cases and low lying in 5% of the cases. On the basis of length variation results showed that 80% cases had a normal cystic artery .A short cystic artery was found in 5% cases and a long cystic artery was present in 5%. Other arterial variations are of hepatic artery i.eMoynihan’s Hump (3%) and right hepatic artery present in Calots triangle in 5%
Conclusions: For the safety of laparoscopic cholecystectomy one should be well aware of the anatomical variations of the cystic and hepatic arter
Institutional Quality, Trade Openness and Economic Growth in South Asian Economies: Some New Insights from a Panel Data Analysis
The main aim of the present study is to empirically investigate into the question whether the Institutional Quality (IQ) and Trade Openness (TO) are competitors or complements in Economic Growth (EG) in case of sample South Asia Economies; “India, Bangladesh, Pakistan, and Sri Lanka”. The panel data for the period of 1984-2018 has been utilized. The Fixed Effects Model (FEM) estimation technique has been applied for empirical investigation. The empirical results of FEM confirm the positive and statically significant impact of IQ and Interaction Term on Economic Growth in sample countries. The positive significant results strongly supported the hypothesis of this study, the IQ and TO are complements in EG in the case of sample SAE. The IQ measure has also established positive and significant effects on EG while the TO has a negative impact. Based on empirical findings, this study recommends that the policymakers of sample countries should make policies that strengthen the IQ, in order to improve trade and, consequently, the EG. 
Impact of Financial Development, Energy Consumption, Trade Openness, and Population on CO2 Emissions in Pakistan: Application of STIRPAT Model
Environmental degradation is one of the contemporary issues faced by people across the globe. Carbon dioxide (CO 2 ) emissions resulting from increased economic activities have been observed as the major contributortowards current environmental deterioration. Efforts have been made to reduce CO 2 emissions through various mitigations and adaptations at various levels. Financial sector interventions are considered as one of the effective ways to reduce this menace. Therefore, the current study applied modified version of the STIRPAT model to examine the nexus between financial sector expansion and CO 2 emissions in Pakistan using yearly data from 1980-2023. The Augmented Autoregressive Distributed Lag (ARDL) bounds testing corroborated the long-run co-integration with CO 2 emissions when variables of energy consumption, trade openness, GrossDomestic Product (GDP), and population were included as control variables in the analysis. The empirical results showed that the financial sector development, energy consumption, and GDP had a positive and significant association with CO 2 emissions. However, trade openness was observed to be inversely associated with CO 2 emissions in the country. Moreover, the population had a negligible and inverse association by CO 2 emissions. The study concluded that financial sector reforms were instrumental to lower the CO 2 emissions in Pakistan. Therefore, economic policy with embedded environmental approach should be implemented to encourage clean production and diminish CO 2 emissions in the country
Beyond the Task: Developing a Tool to Measure Workplace Characteristics That Affect Cognitive Load and Learning
PURPOSE: Educators lack tools to measure the workplace characteristics that learners perceive to affect learning. Without a tool that encompasses the social, organizational, and physical components of workplace learning environments (WLEs), it is challenging to identify and improve problematic workplace characteristics. Using echocardiography WLE, this study developed a tool to measure workplace characteristics that cardiology fellows perceive to affect learning.
METHOD: The Workplace-Cognitive Load Tool (W-CLT) was developed, which encompasses 17 items to measure workplace characteristics that could affect perceived cognitive load and learning. Exploratory factor analysis was used to identify the most parsimonious structure. A total of 646 cardiology subspeciality fellows were recruited from 60 cardiology fellowship programs to complete the survey between November 2020 and February 2021. Validity evidence was collected, guided by the unified model of validity.
RESULTS: A total of 308 fellows (response rate, 49%) participated in the survey. The most parsimonious structure included 4 factors: (1) workplace-task, (2) workplace-environment, (3) workplace-orientation, and (4) workplace-teaching and feedback. All factors had high reliability (Cronbach α = 0.92, 0.92, 0.96, and 0.94, respectively). Social, organizational, and physical components of WLEs were represented in the items. Workplace-teaching and feedback had moderate negative correlations with workplace-environment (r = -0.41, P \u3c .001) and workplace-orientation (r = -0.36, P \u3c .001). A moderate positive correlation was found between workplace-task and workplace-teaching and feedback (r = 0.42, P \u3c .001). Workplace-task had weak negative correlations with workplace-environment (r = -0.22, P \u3c .001) and workplace-orientation (r = -0.23, P \u3c .001).
CONCLUSIONS: The W-CLT measures workplace characteristics that cardiology fellows perceive to affect their learning. The presence of social, organizational, and physical components emphasizes how workplace characteristics can enhance or impede learning. The W-CLT provides a foundation to explore how learning can be optimized in other WLEs
The genetics associated with Primary Congenital Glaucoma
Glaucoma is a progressive optic neuropathy; increased intraocular pressure (IOP) is a modifiable risk factor for primary congenital glaucoma (PCG). Increase IOP causes retinal and optic nerve compression and leads to gradual and irreversible loss of eyesight if left untreated. It is the second most leading cause of blindness. PCG mainly affects children up to the age of three years, and symptoms include epiphora, photalgia, swollen eyes, opaque corneas, blepharospasm, rupture in the retina and ocular nerve damage due to IOP. Early detection, management, and treatment are the keys to preventing vision loss from glaucoma. Many mutations have been discovered in Cytochrome P450 1B1 (CYP1B1) gene to be responsible for causing PCG, and there are still a lot of mutations to be discovered. In this review, we will discuss the genetic aspects of PCG and the most frequent mutations responsible for PCG in Pakistani children. PCG can be handled by decreasing IOP either by medication or by surgery. Genetic counselling plays a significant role in the establishment of proper management of PCG.Keywords: Primary Congenital Glaucoma; IOP; Cyp1b1; Mutation
Genome-Wide Diversity of MADS-Box Genes in Bread Wheat is Associated with its Rapid Global Adaptability
MADS-box gene family members play multifarious roles in regulating the growth and development of crop plants and hold enormous promise for bolstering grain yield potential under changing global environments. Bread wheat (Triticum aestivum L.) is a key stable food crop around the globe. Until now, the available information concerning MADS-box genes in the wheat genome has been insufficient. Here, a comprehensive genome-wide analysis identified 300 high confidence MADS-box genes from the publicly available reference genome of wheat. Comparative phylogenetic analyses with Arabidopsis and rice MADS-box genes classified the wheat genes into 16 distinct subfamilies. Gene duplications were mainly identified in subfamilies containing unbalanced homeologs, pointing towards a potential mechanism for gene family expansion. Moreover, a more rapid evolution was inferred for M-type genes, as compared with MIKC-type genes, indicating their significance in understanding the evolutionary history of the wheat genome. We speculate that subfamily-specific distal telomeric duplications in unbalanced homeologs facilitate the rapid adaptation of wheat to changing environments. Furthermore, our in-silico expression data strongly proposed MADS-box genes as active guardians of plants against pathogen insurgency and harsh environmental conditions. In conclusion, we provide an entire complement of MADS-box genes identified in the wheat genome that could accelerate functional genomics efforts and possibly facilitate bridging gaps between genotype-to-phenotype relationships through fine-tuning of agronomically important traits
Screening of marigold (Tagetes erecta L.) cultivars for drought stress based on vegetative and physiological characteristics
Drought tolerance is an important genotypic character to be exploited for the plant cultivar selection under water deficit conditions. In the recent study, we examined the response of two marigold cultivars (Inca and Bonanza) under different regimes of drought stress. The aim was to determine the best performing cultivar under water/drought stress. Three irrigation treatments include; 4 days (T1), 6 days (T2) and 8 days (T3) in comparison to control 1 day (T0) interval were imposed. Response characters under study were morphological, physiological and anatomical. Complete Randomized Design (CRD) with four replications in two factorial arrangements was followed for experiment layout. The results revealed that increasing water stress adversely affect plant height, in both cultivars. Both cultivars showed a decreasing trend to the number of flowers under water stress. Total chlorophyll contents including a, b were also showed reduction under prolonged drought treatment in both cultivars from (2.7 mg g-1 FW) to (1 mg g-1 FW). Overall, the performance of cultivar (cv.) Inca was satisfactory under water stress regimes. These results are helpful for selecting drought tolerant marigold cultivars in water scarce areas. Â
Is Trade Openness the Reason of High Energy Demand in China?
The present study aims to examine the short-run and long-run impact of China's trade liberalization policies on its energy demand over the period from 1980 to 2018. The results of Autoregressive Distributed Lag approach of co-integration show that energy consumption significantly increases as a result of trade openness and increase in real Gross Domestic Product (GDP). The results of the granger causality test also confirm the unidirectional causality running from trade openness and real GDP to energy demand. The results of the study have an important implication because if China wants to continue its trade liberalization policies then it must increase its energy production.
Keywords: Energy Consumption, Gross Domestic Product, Trade Openness, China, Time Series
JEL Classifications: C22, F15, L98, Q43
DOI: https://doi.org/10.32479/ijeep.1116
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