Publications by authors named "Yasin Ahmad"

Conservation initiatives strive for reliable and cost-effective species monitoring. However, resource constraints mean management decisions are overly reliant on data derived from single methodologies, resulting in taxonomic or geographic biases. We introduce a data integration framework to optimize species monitoring in terms of spatial representation, the reliability of biodiversity metrics, and the cost of implementation, focusing on tigers and their principal prey (sambar deer and wild pigs).

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Article Synopsis
  • This study explores how non-ionic surfactants, specifically Cremophor EL and Cremophor RH40, can help inhibit efflux pumps in multidrug-resistant (MDR) bacteria, which often render antibiotics ineffective.
  • Researchers confirmed the presence of MDR strains and tested how these surfactants, combined with ciprofloxacin, affected minimum inhibitory concentrations (MIC).
  • Results showed that both surfactants significantly reduced MIC values of ciprofloxacin, indicating their potential to enhance the effectiveness of existing antibiotics against resistant strains.
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The field of dentistry has seen various technological advances regarding caries detection, some lesions still prove to be difficult to detect. A reasonably new detection method, near-infrared (NIR), has shown good results in caries detection. This systematic review aims to compare NIR with conventional methods in terms of caries detection.

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Hepatic steatosis is frequent; however, it may present with unusual patterns, resulting in a diagnostic dilemma. Herein, we present a case of fatty liver and multifocal nodular hepatic lesions that were found to be due to multifocal nodular fatty sparing, which mimics metastasis or primary multifocal tumors. As the differential diagnosis of such lesions can be difficult based on ultrasound alone, the knowledge of Magnetic Resonance Imaging (MRI) findings is crucial.

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Purpose: Developmental absence of the internal carotid artery (ICA) is a rare congenital anomaly that results from an insult to the third aortic arch or dorsal aorta during early embryogenesis. Patients are often asymptomatic and are diagnosed incidentally during imaging to investigate neurological complaints.

Methods: We report a rare finding of an absent ICA during a workup of stroke in a middle-aged patient.

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This work presents findings on utilizing the expansion stage of compressed air energy storage systems for air conditioning purposes. The proposed setup is an ancillary installation to an existing compressed air energy storage setup and is used to produce chilled water at temperatures as low as 5 °C. An experimental setup for the ancillary system has been built with appropriate telemetric devices to measure the temporal temperature variation, which consequently can be used to calculate the heat transfer and available cooling capacity.

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Ruptured mesenteric hematoma is a rare entity that is not frequently reported in the literature. Spontaneous rupture of mesenteric hematoma has been vaguely described in a handful of cases. The majority of cases (unlike ours) had a reported etiology, like trauma, postoperative complications, connective tissue disease, and coagulopathy.

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Background: Uncontrolled hypertension (HTN) is a challenge for public health professionals all over the world. It is the leading and most important modifiable risk factor for coronary artery disease, congestive heart failure, stroke, renal diseases, and retinopathy. The aim of the present study was to estimate the prevalence of uncontrolled HTN among Palestinian hypertensive patients on treatment.

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Coronavirus disease 2019 (COVID-19) predominantly targets the respiratory tract; despite gastrointestinal (GI) symptoms that may present in many patients, colonic strictures in coronavirus disease (COVID-19) patients are extremely rare and, to our knowledge, have never been reported. We, herein, present a case of a 59-year-old lady who developed intestinal obstruction due to colonic strictures shortly after recovering from complicated COVID-19 pneumonia. Ultimately, she underwent laparoscopic subtotal colectomy with ileorectal anastomosis.

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Primary adrenal lymphoma (PAL) often occurs bilaterally and is a rare malignancy of old age. Workup for primary adrenal insufficiency often unmasks this underlying grave pathology. In this article, we present a case of a 73-yearold patient who presented with features of primary adrenal insufficiency and renal colic.

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Objective: To describe the clinical features of childhood epilepsy in Qatar.

Methods: A retrospective cross-sectional chart review analysis was conducted at the only tertiary pediatric hospital in Qatar in 1422 patients with epilepsy followed between November 2016 and October 2019.

Results: 55% (781) were males and 70% were non-Qatari.

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Background The ligamentum teres has been recognized as an important stabilizer of the hip joint and can be affected by various hip pathologies. This study aims to introduce ligamentum teres edema as an MRI marker to diagnose the underlying cause of hip pathology, mainly femoral acetabular impingement (FAI) and adult developmental dysplasia of the hip (ADDH), in non-traumatic patients. Methodology Adult patients presenting with non-traumatic hip pain of variable duration and ligamentum teres edema on MRI between 2014 and 2020 were included.

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Objectives: Dengue remains hyperendemic in Malaysia despite extensive vector control activities. With dynamic changes in land use, urbanisation and population movement, periodic updates on dengue transmission patterns are crucial to ensure the implementation of effective control strategies. We sought to assess shifts in the trends and spatial patterns of dengue in Kelantan, a north-eastern state of Malaysia (5°15'N 102°0'E).

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Purpose: Variance of aortic arch branches are clinically significant as they are encountered in multiple endovascular treatments. The knowledge of different variants is crucial to perform successful vascular interventions.

Methods: We report a novel anatomical variant of aortic arch found on contrast-enhanced computed tomography scan during a workup of cervical lymphadenopathy.

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Meckel's diverticulum (MD) is the most common congenital anomaly of the gastrointestinal tract. MD enteroliths are an uncommon entity that could rarely present with complications. We, herein, present a case of a 56-year-old man who presented with severe abdominal pain.

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Introduction: Dengue, a vector-borne viral illness, shows worldwide widening spatial distribution beyond its point of origination, namely, the tropical belt. The persistent hyperendemicity in Malaysia has resulted in the formation of the dengue early warning system. However, weather variables are yet to be fully utilized for prevention and control activities, particularly in east-coast peninsular Malaysia where limited studies have been conducted.

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Acute appendicitis is one of the most frequent causes of acute abdominal pain. Clinical signs, blood tests, and imaging are important to confirm the diagnosis. The classic presentation consists of periumbilical abdominal pain that migrates to the right lower quadrant, guarding, tenderness, and rebound tenderness in the region.

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A horseshoe adrenal gland is a rare congenital anomaly found almost exclusively in neonates and infants based on autopsy studies. It is a term used to describe a solitary adrenal gland situated in the midline, posterior to the inferior vena cava and abdominal aorta. To date, in the literature, there have been very few cases documented in adults and they have also been reported to be associated with other co-existing intra-abdominal, vascular and vertebral congenital anomalies.

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Parental acceptance of routine childhood immunization is critical to protecting children's health, as high vaccination-coverage rates lead to decreased rates of vaccine-preventable diseases. However, to communicate effectively with parents about vaccines and vaccine-preventable diseases, it is necessary to assess their vaccine-related attitudes and concerns continually. Recently the Palestine Ministry of Health has recorded epidemics of measles and mumps.

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Livestock-associated methicillin-resistant (LA-MRSA) is a major concern in many parts of the world, including Pakistan. The aim of this study was to investigate the prevalence of MRSA in slaughterhouses and meat shops in Rawalpindi-Islamabad, Pakistan, 2018-2019. A total of 300 samples were collected: 40 from each of working area, tools (knives, hooks), butcher hands and beef, 30 from each of chicken and mutton, 20 from each of nasal and rectal swabs.

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The aim of the present study was to estimate the prevalence of and investigate the dominant serovars distribution in raw beef and to screen the isolated serovars for the prescense of beta-lactamases and virulence genes. A total of 150 samples of raw beef sold at butcher shops ( = 75) and supermarkets ( = 75) in Karachi city were collected (50 samples each from muscles, lymph nodes, and minced beef). The samples were cultured according to the ISO-6579-1guidlines.

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Introduction: Anti sperm antibodies (ASA) can present in serum and semen and they may lead to impair the sperms function leading to infertility. The precise mechanism of generation of these antibodies is yet to be discovered.

Aim: This study was performed to determine the prevalence of anti-sperm antibodies (ASA) in patients with unexplained infertility.

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Research is progressing fast to find safe and effective methods of delivering therapeutic genes to patients afflicted with a range of genetic and acquired diseases that either do not respond at all, or respond poorly, to treatment with small-molecule drugs or protein-replacement therapy. A technical barrier that remains relates to the need for scalable operations that can consistently and reproducibly make large quantities of the therapeutic gene vectors under the current Good Manufacturing Practice ('cGMP'). The present investigation focuses on these issues and introduces a new method of assessing the engineering effects of process and material factors on the colloidal properties of plasmid-DNA delivery systems based on response surface methodology (RSM) and experimental techniques.

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