167 research outputs found
Lack of Academic-Industrial Liaison in Pakistan – A Quantitative Study
The primary focus of this work is to explore the causes and key limitations in Pakistan's current academic-industrial liaison. This work is aimed at highlighting the different forms and benefits and the conditions for the university-business partnership. The study has a quantitative structure and a chosen philosophy of positivism and deductive methodology, and the novel knowledge is obtained through a 5-point Likert Scale questionnaire. Pakistani organizations should help universities to use the views on education programs, learning achievements, practical training, internships and vocational training for businesses contributing to schools. The scientists at the school should also address other issues of the economy and business sector and provide the answers as a guide in the cycle for companies.Keywords: Pakistan; Academic-industry liaison; university-business; Positivism philosophyDOI: 10.7176/EJBM/12-2-09Publication date: January 31st 202
Entropy Analysis of the Peristaltic Flow of Hybrid Nanofluid Inside an Elliptic Duct with Sinusoidally Advancing Boundaries
Peristaltic flow of hybrid nanofluid inside a duct having sinusoidally advancing boundaries and elliptic cross-section is mathematically investigated. The notable irreversibility effects are also examined in this mathematical research by considering a descriptive entropy analysis. In addition, this work provides a comparison analysis for two distinct nanofluid models: a hybrid model (Cu-Ag/water) and a phase flow model (Cu/water). A comprehensive graphical description is also provided to interpret the physical aspects of this mathematical analysis
Frequency of Noise Induced Hearing Loss Among Traffic Wardens of Lahore
Background: Noise-induced hearing loss (NIHL) is a major cause of disability throughout the world. It is the most common irreversible job-related hazard in the world with a higher burden in the developing regions of the world. Certain occupations are at high risk for NIHL. Traffic wardens could be considered highly vulnerable group as they are exposed to long hours of traffic noise. The objective of this study was to determine the frequency of noise induced hearing loss among traffic wardens of Lahore city.Material and Methods: It was a cross-sectional, descriptive study, carried out from 1st December 2018 to 31st May 2019, in which 329 traffic wardens appointed in 34 beats/sectors of Lahore city were included. Data was collected through a structured questionnaire, followed by Pure Tone Audiometry (PTA) of all the subjects.Results: A total of 329 traffic wardens were selected for this study. Mean age of the traffic wardens was 35.35 ± 1.21 years. NIHL was present in 174 (52.9%) traffic wardens, out of which, 138 (79.3%) had mild, 32 (18.4%) moderate, and 4 (2.3%) had moderately severe degree of hearing loss. Among the 329 traffic wardens, 165 (50.2%) had exposure to noise between 7am to 3pm (morning shift) and 42 (12.8%) had some problem with their hearing. Only 12 (3.6%) had ringing in the ears or tinnitus, 140 (42.6%) wore any hearing protection during duty hours and 42 (12.8%) said they had difficulty in hearing and frequently asked people to repeat themselves.Conclusion: In this study a high frequency of noise induced hearing loss was reported among traffic wardens of Lahore city with most of them having mild to moderate degree of hearing loss
Sensibilidade do fluxo de caixa de investimento em empresas paquistanesas familiares
Different governance structure of family owned firms may impact their investment decisions and hence performance in the long run. This study investigates the impact of family ownership and control on investment-cash flow sensitivity of family owned firms listed in Pakistan Stock Exchange. Using the ownership threshold of >50% share holdings, panel data of 135 firms is analyzed from 2004-2017. Generalized Method of Moments (GMM) was used to estimate the coefficients of model. Results reveal the financing decisions are significantly sensitive to the cash flows generated by the firms in a credit constraint environment. The study recommends policy makers to facilitate capital funding to family owned firms and encourage the placement of professional CEOs instead of family members.La mayorÃa de la estructura de gobierno de la familia de propiedad propia puede afectar sus inversiones tomadas y rendimiento en el largo plazo. Este estudio investiga el impacto de la propiedad de la propiedad y el control en la inversión de flujo de flujo de la población de la sociedad de propiedad de la sociedad en cuestión. El uso de la propiedad de propiedad del 50% de los contenedores, se establece el certificado de seguridad de 135 de 135 a partir de 2004-2017. Se utilizó el método utilizado para medir los coeficientes del modelo (GMM). Los resultados que muestran las medidas de aprobación son sensibles a los flujos de flujo generados por la entidad en un entorno de restricción de contenido. El estudio considera que los responsables de la polÃtica de toma de posesión de capital para una sociedad de propiedad privada y la colocación de profesionales profesionales en lugar de miembros de familia.Diferentes estruturas de governança de empresas familiares podem afetar suas decisões de investimento e, portanto, o desempenho a longo prazo. Este estudo investiga o impacto da propriedade familiar e controle sobre a sensibilidade do fluxo de caixa de investimento das empresas familiares listadas na Bolsa de Valores do Paquistão. Utilizando o limite de propriedade de mais de 50% das participações acionárias, os dados de painel de 135 empresas são analisados de 2004 a 2017. O Método Generalizado de Momentos (GMM) foi utilizado para estimar os coeficientes do modelo. Os resultados revelam que as decisões de financiamento são significativamente sensÃveis aos fluxos de caixa gerados pelas empresas em um ambiente de restrição de crédito. O estudo recomenda formuladores de polÃticas para facilitar o financiamento de capital para empresas familiares e incentiva a colocação de CEOs profissionais em vez de membros da famÃlia
Mechanics of non-Newtonian blood flow in an artery having multiple stenosis and electroosmotic effects
The electro-osmotically modulated hemodynamic across an artery with multiple stenosis is mathematically evaluated. The non-Newtonian behaviour of blood flow is tackled by utilizing Casson fluid model for this flow problem. The blood flow is confined in such arteries due to the presence of stenosis and this theoretical analysis provides the electro-osmotic effects for blood flow through such arteries. The mathematical equations that govern this flow problem are converted into their dimensionless form by using appropriate transformations and then exact mathematical computations are performed by utilizing Mathematica software. The range of the considered parameters is given as (Formula presented.). The graphical results involve combine study of symmetric and non-symmetric structure for multiple stenosis. Joule heating effects are also incorporated in energy equation together with viscous effects. Streamlines are plotted for electro-kinetic parameter (Formula presented.) and flow rate (Formula presented.). The trapping declines in size with incrementing (Formula presented.), for symmetric shape of stenosis. But the size of trapping increases for the non-symmetric case
Clinical Outcome in Patients with Early versus Delayed Decompression in Cervical Spine Trauma
Study DesignProspective observational study.PurposeTo assess the clinical outcome after early versus late decompression for traumatic cervical cord injury.Overview of LiteratureTraumatic spinal cord injury is common globally with the most tragic outcomes in the cervical spine. Although recent studies have shown that early decompression results in more favourable outcome, its authority is yet to be established.MethodsStudy on 98 patients with a traumatic cervical cord injury was conducted over a period of 5 years. The patients who were operated on within 24 hours of the onset of the primary injury (n=34) were classified as the early group, and those who were operated on after 24 hours of the onset of the injury (n=64) were categorized as the late group. The outcome of both the groups was assessed using the American Spinal Injury Association (ASIA) Impairment Scale (AIS) at the 6-month follow-up.ResultsThe patients in the early group were operated on at a mean time of 18.4 hours (range, 13-24 hours) while patients were operated on at a mean time of 52.7 hours (range, 31-124 hours) in the late group. At the 6-month follow-up, 7 (23.3%) in the early group and 5 (8.7%) in the late group showed >2 grade improvement in the AIS.ConclusionsThe results of patients undergoing decompression within 24 hours of the injury are better than those who are operated on later. An attempt should be made to decompress the traumatic cervical spine early in all possible cases
Viscous flow between two sinusoidally deforming curved concentric tubes: Advances in endoscopy
Viscous flow between two sinusoidally deforming curved concentric tubes is mathematically investigated for the first time. Exact solutions are computed to analyse the flow between these two tubes and graphical outcomes are included for a thorough analysis of the solutions. The present article has prime applications in endoscopy as a novel peristaltic endoscope is introduced first time for a curved sinusoidal tube. This curved nature of outer sinusoidal tube with a flexible peristaltic endoscope placed inside it covers the topic of practical applications like endoscopy of human organs having curved shapes and the maintenance of complex machineries that involve complex curve structures. The usage of a flexible peristaltic endoscope inside a curved sinusoidal tube makes the process of catheterization more comfortable
Removing Digital Addiction: Through Digital Detoxication
Over-reliance on digital devices like cell phones, tablets, and iPad, has led to an individual using multiple digital devices the majority of the time when he or she is awake. Multiple device usage leads to an unconscious addictive use of a device that culminates in persistent information overload. This addictive use leads to information overload that continues even when the device is not being used or the individual is sleeping. We seek to explore if a digital detoxification app can remove digital addiction and create an impactful and healthy device usage, resulting in impactful device usage. Researchers have talked about the need for digital detoxification or digital cleansing. The popular remedies available include increased physical activities like yoga and meditation. We propose a digital detoxification model that can be used for mandatory service application of a device or the hedonistic use of an entertainment device. This model will allow individuals to use digital devices to the extent that it does not lead to addiction side effects like technostress, anxiety, insomnia, and information overload, thereby reducing digital addiction. This app will prevent an individual from unnecessarily utilizing the device while promoting optimal use, facilitating digital detoxication, and minimizing digital addiction. The digital detoxification apps will be available from all the publicly available app stores and allow the end-users to develop healthy habits and then detoxify from excessive use of the device. These apps will activate and prevent the end-user from excessively using the device. The individual will identify the safe usage time of the device. The app will activate features like airplane mode to ensure that excessive device usage is prevented and does not lead to digital toxification
GeoChat: Grounded Large Vision-Language Model for Remote Sensing
Recent advancements in Large Vision-Language Models (VLMs) have shown great
promise in natural image domains, allowing users to hold a dialogue about given
visual content. However, such general-domain VLMs perform poorly for Remote
Sensing (RS) scenarios, leading to inaccurate or fabricated information when
presented with RS domain-specific queries. Such a behavior emerges due to the
unique challenges introduced by RS imagery. For example, to handle
high-resolution RS imagery with diverse scale changes across categories and
many small objects, region-level reasoning is necessary alongside holistic
scene interpretation. Furthermore, the lack of domain-specific multimodal
instruction following data as well as strong backbone models for RS make it
hard for the models to align their behavior with user queries. To address these
limitations, we propose GeoChat - the first versatile remote sensing VLM that
offers multitask conversational capabilities with high-resolution RS images.
Specifically, GeoChat can not only answer image-level queries but also accepts
region inputs to hold region-specific dialogue. Furthermore, it can visually
ground objects in its responses by referring to their spatial coordinates. To
address the lack of domain-specific datasets, we generate a novel RS multimodal
instruction-following dataset by extending image-text pairs from existing
diverse RS datasets. We establish a comprehensive benchmark for RS multitask
conversations and compare with a number of baseline methods. GeoChat
demonstrates robust zero-shot performance on various RS tasks, e.g., image and
region captioning, visual question answering, scene classification, visually
grounded conversations and referring detection. Our code is available at
https://github.com/mbzuai-oryx/geochat.Comment: 10 pages, 4 figure
Scientific breakdown for physiological blood flow inside a tube with multi-thrombosis
The blood flow inside a tube with multi-thromboses is mathematically investigated. The existence of these multiple thromboses restricts the blood flow in this tube and the flow is revamped by using a catheter. This non-Newtonian blood flow problem is modeled for Jeffrey fluid. The energy equation includes a notable effect of viscous dissipation. We have calculated an exact solution for the developed mathematical governing equations. These mathematical equations are solved directly by using Mathematica software. The graphical outcomes are added to discuss the results in detail. The multiple thromboses with increasing heights are evident in streamline graphs. The sinusoidally advancing wave revealed in the wall shear stress graphs consists of crest and trough with varying amplitude. The existence of multi-thrombosis in this tube is the reason for this distinct amplitude of crest and trough. Further, the viscous dissipation effects come out as a core reason for heat production instead of molecular conduction
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