Fahad Malik - Academia.edu (original) (raw)

Papers by Fahad Malik

Research paper thumbnail of Macdonald Kelce Library Complimentary Care Articles

Research paper thumbnail of Percepcao Do Impacto De Eventos Extremos Sobre a Producao Pela Populacao Do Estuario Amazonico

Red Iberoamericana de Economía Ecológica, REDIBEC, 2017

Research paper thumbnail of Unveiled Risks in a Telecoupled Arena Dependent on Agricultural Commodity Trade

Research paper thumbnail of Control Refinement using Particle Methods

Research paper thumbnail of Real interest rate volatility in the Pakistani economy: A regime switching approach

Research paper thumbnail of Dieulafoy lesions as cause of upper gastrointestinal bleeding in a patient with portal hypertension

Journal of Community Hospital Internal Medicine Perspectives, 2021

Dieulafoy’s lesion is an abnormally large and tortuous submucosal artery that protrudes through a... more Dieulafoy’s lesion is an abnormally large and tortuous submucosal artery that protrudes through a small mucosal defect resulting in gastrointestinal bleeding. We present a case of a 53-year-old man with a history of HIV and alcohol abuse who presented to the emergency room with hematemesis and melena. Upper endoscopy revealed an actively bleeding dieulafoy lesion, but due to uncontrolled bleeding, embolization of the left artery was necessitated. The incidence of dieulafoy lesions is about 0.3% to 6.7% within the stomach. The etiology remains uncertain but has been linked to alcoholism and antiplatelet drugs. We are emphasizing the importance of considering uncommon causes of upper gastrointestinal bleeding in patients with portal hypertension.

Research paper thumbnail of КЛИНИЧЕСКАЯ И МОЛЕКУЛЯРНО-ГЕНЕТИЧЕСКАЯ ХАРАКТЕРИСТИКА 3 СЕМЕЙНЫХ СЛУЧАЕВ ГОНАДОТРОПИНЗАВИСИМОГО ПРЕЖДЕВРЕМЕННОГО ПОЛОВОГО РАЗВИТИЯ, ОБУСЛОВЛЕННОГО МУТАЦИЯМИ В ГЕНЕ MKRN3

Gonadotropin-dependent precocious puberty (central) is a condition resulting from the early (up t... more Gonadotropin-dependent precocious puberty (central) is a condition resulting from the early (up to 8 years in girls and 9 years in boys) reactivation of the hypothalamic-pituitary-gonadal axis. An increase in the secretion of sex steroids by the gonads in this form is a consequence of the stimulation of the sex glands by gonadotropic hormones of the pituitary gland. In the absence of central nervous system abnormalities, CPP is classified as idiopathic and as familial in some cases, emphasizing the genetic origin of this disorder. Loss-of-function mutations in Makorin Ring Finger Protein 3 ( MKRN3 ) are the most common identified genetic cause of central precocious puberty compared to sporadic cases. In the present study we performed the first descrition of 3 family cases of central precocious puberty duo to novel MKRN3 gene mutation detected by NGS in the Russian Federation.

Research paper thumbnail of “Cures Pal·liatives: un dret, una necessitat”: avaluació d’un projecte col·laboratiu de difusió i divulgació de les cures pal·liatives a les Illes Balears

catalaEs presenta el projecte col·laboratiu de difusio i divulgacio de les Cures Pal·liatives dir... more catalaEs presenta el projecte col·laboratiu de difusio i divulgacio de les Cures Pal·liatives dirigit a la ciutadania amb el titol: “Cures Pal·liatives: un dret, una necessitat” que des del Centre Coordinador del programa de Cures Pal·liatives de les Illes Balears (CCPCPIB), conjuntament amb la Societat Balear de Cures Pal·liatives (IllesPal), l’Associacio Espanyola Contra el Cancer (AECC), l’associacio de voluntaris de cures pal·liatives de les Illes Balears (DIME) i l’associacio Angeles sin Alas, van posar en marxa. L’objectiu de l’esmentat projecte es donar a coneixer l’atencio pal·liativa com un dret i una necessitat que te tota persona que es troba en un proces de final de vida. S’ha estructurat mitjancant sessions a diferents pobles de les illes, dirigits a la ciutadania, amb la participacio de representants de les entitats citades. Es presenten els resultats d’aquest programa, amb la conclusio que la satisfaccio percebuda dels assistents ha estat molt bona. EnglishA collabora...

Research paper thumbnail of Clinical Implementation and Initial Experience of Neutrophil Gelatinase-Associated Lipocalin Testing for the Diagnostic and Prognostic Assessment of Acute Kidney Injury Events in Hospitalized Patients

Nephron, 2021

Introduction: The use of novel kidney injury biomarkers has been shown to improve diagnostic asse... more Introduction: The use of novel kidney injury biomarkers has been shown to improve diagnostic assessment and prognostic prediction in various populations with acute kidney injury (AKI), but their use in a standard clinical practice have been rarely reported. Methods: We reported the clinical implementation of neutrophil gelatinase-associated lipocalin (NGAL) measurement for routine AKI diagnostic workup of patients receiving nephrology consultation in a tertiary academic centre. Specific focus was made on the diagnostic performance to discriminate functional (“pre-renal”) from intra-renal AKI and to predict AKI progression. Results: Forty-five urine NGAL (uNGAL) and 25 plasma NGAL (pNGAL) samples in the first 50 consecutive patients were analysed. KDIGO Stage 1, 2, 3 AKI, and renal replacement therapy occurred in 10%, 40%, 50%, and 24% of cases, respectively. The uNGAL was lower in patients with transient AKI (<48 h) and no sign of urinary tract infections (37 [25–167] ng/mL) than...

Research paper thumbnail of S2995 Gastrointestinal Hemorrhage Due to Duodenal Varix: A Case Report

American Journal of Gastroenterology, 2021

Research paper thumbnail of S2107 Esophagitis Dissecans Superficialis: A Rare but Frequently Missed Diagnosis

American Journal of Gastroenterology, 2021

Research paper thumbnail of S1940 Barrett's Esophagus With Multiple Neuroendocrine Tumors

American Journal of Gastroenterology, 2020

Research paper thumbnail of Frequency Limited Weighted Model Reduction Algorithm With Error Bound: Application to Discrete-Time Doubly Fed Induction Generator Based Wind Turbines for Power System

IEEE Access, 2021

The state-space representations grant a convenient, compact, and elegant way to examine the physi... more The state-space representations grant a convenient, compact, and elegant way to examine the physical systems, e.g., induction and synchronous generator-based wind turbines, with facts readily available for stability, controllability, and observability analysis. In this article, the model order reduction of a stable doubly fed induction generator based variable-speed wind turbines model is performed with the aid of the proposed stability preserving balanced realization algorithm based on discrete frequency weights and limited frequency-interval. The frequency weighting and limited frequency-intervals-based model order reduction techniques presented by Enns's and Wang & Zilouchian produce an unstable reduced-order model at certain frequency weights and frequency intervals, respectively. To overcome this main drawback, many researchers provided a solution to preserve the stability of the reduced-order model. However, these existing approaches also produce an unstable reduced-order model in some conditions and produce a large variation to the original system; consequently, they provide a large approximation error. The proposed approach not only ensures the stability of the reduced-order model but also provides low approximation error as compared with other existing approaches and also provides an easily calculable a priori error bound formula. The proposed work produces steady and precise outcomes in contrast to conventional reduction methods, which shows the efficacy of the proposed algorithm.

Research paper thumbnail of Fault-Tolerant Sliding Mode Control of a Quadrotor UAV with Delayed Feedback

International Journal of Mechanical Engineering and Robotics Research, 2020

Research paper thumbnail of Colovesicular fistula from Candida dubliniensis in an immunocompetent resulting in poor outcome

Journal of Community Hospital Internal Medicine Perspectives, 2020

Research paper thumbnail of Design of SMC with a Conditional Integrator for Pitch Control of a Mini UAV

Proceedings of the 5th International Conference of Control, Dynamic Systems, and Robotics (CDSR'18), Jun 1, 2018

An SMC with a conditional integrator for pitch control with velocity regulation as a secondary ob... more An SMC with a conditional integrator for pitch control with velocity regulation as a secondary objective for a mini UAV is discussed in this paper. For controller design, the longitudinal dynamics of the mini UAV are decomposed into its phugoid mode and short period mode approximations. The controller design is based on the linear model however for implementation purpose nonlinear model of longitudinal dynamics of the mini UAV is used. The robustness of the controller to disturbances because of model uncertainties and external sources are shown through extensive simulations. The results, especially the transient response shows that this controller outperforms the controller based on conventional integrators.

Research paper thumbnail of Land-use changes across distant places: design of a telecoupled agent-based model

Journal of Land Use Science, 2019

Research paper thumbnail of A Case of Auto-brewery Syndrome Treated with Micafungin

Research paper thumbnail of Favorable Rates of Post-ERCP Pancreatitis With Endoscopic Sphincterotomy With Delayed Sphincteroplasty Approach

American Journal of Gastroenterology, 2019

Research paper thumbnail of Argon Plasma Coagulation-Based Removal of Partially-Covered Esophageal Self-Expanding Metal Stent for Anastomotic Leaks Despite Extended Embedment - Challenging Current Standards of Care

American Journal of Gastroenterology, 2019

Research paper thumbnail of Macdonald Kelce Library Complimentary Care Articles

Research paper thumbnail of Percepcao Do Impacto De Eventos Extremos Sobre a Producao Pela Populacao Do Estuario Amazonico

Red Iberoamericana de Economía Ecológica, REDIBEC, 2017

Research paper thumbnail of Unveiled Risks in a Telecoupled Arena Dependent on Agricultural Commodity Trade

Research paper thumbnail of Control Refinement using Particle Methods

Research paper thumbnail of Real interest rate volatility in the Pakistani economy: A regime switching approach

Research paper thumbnail of Dieulafoy lesions as cause of upper gastrointestinal bleeding in a patient with portal hypertension

Journal of Community Hospital Internal Medicine Perspectives, 2021

Dieulafoy’s lesion is an abnormally large and tortuous submucosal artery that protrudes through a... more Dieulafoy’s lesion is an abnormally large and tortuous submucosal artery that protrudes through a small mucosal defect resulting in gastrointestinal bleeding. We present a case of a 53-year-old man with a history of HIV and alcohol abuse who presented to the emergency room with hematemesis and melena. Upper endoscopy revealed an actively bleeding dieulafoy lesion, but due to uncontrolled bleeding, embolization of the left artery was necessitated. The incidence of dieulafoy lesions is about 0.3% to 6.7% within the stomach. The etiology remains uncertain but has been linked to alcoholism and antiplatelet drugs. We are emphasizing the importance of considering uncommon causes of upper gastrointestinal bleeding in patients with portal hypertension.

Research paper thumbnail of КЛИНИЧЕСКАЯ И МОЛЕКУЛЯРНО-ГЕНЕТИЧЕСКАЯ ХАРАКТЕРИСТИКА 3 СЕМЕЙНЫХ СЛУЧАЕВ ГОНАДОТРОПИНЗАВИСИМОГО ПРЕЖДЕВРЕМЕННОГО ПОЛОВОГО РАЗВИТИЯ, ОБУСЛОВЛЕННОГО МУТАЦИЯМИ В ГЕНЕ MKRN3

Gonadotropin-dependent precocious puberty (central) is a condition resulting from the early (up t... more Gonadotropin-dependent precocious puberty (central) is a condition resulting from the early (up to 8 years in girls and 9 years in boys) reactivation of the hypothalamic-pituitary-gonadal axis. An increase in the secretion of sex steroids by the gonads in this form is a consequence of the stimulation of the sex glands by gonadotropic hormones of the pituitary gland. In the absence of central nervous system abnormalities, CPP is classified as idiopathic and as familial in some cases, emphasizing the genetic origin of this disorder. Loss-of-function mutations in Makorin Ring Finger Protein 3 ( MKRN3 ) are the most common identified genetic cause of central precocious puberty compared to sporadic cases. In the present study we performed the first descrition of 3 family cases of central precocious puberty duo to novel MKRN3 gene mutation detected by NGS in the Russian Federation.

Research paper thumbnail of “Cures Pal·liatives: un dret, una necessitat”: avaluació d’un projecte col·laboratiu de difusió i divulgació de les cures pal·liatives a les Illes Balears

catalaEs presenta el projecte col·laboratiu de difusio i divulgacio de les Cures Pal·liatives dir... more catalaEs presenta el projecte col·laboratiu de difusio i divulgacio de les Cures Pal·liatives dirigit a la ciutadania amb el titol: “Cures Pal·liatives: un dret, una necessitat” que des del Centre Coordinador del programa de Cures Pal·liatives de les Illes Balears (CCPCPIB), conjuntament amb la Societat Balear de Cures Pal·liatives (IllesPal), l’Associacio Espanyola Contra el Cancer (AECC), l’associacio de voluntaris de cures pal·liatives de les Illes Balears (DIME) i l’associacio Angeles sin Alas, van posar en marxa. L’objectiu de l’esmentat projecte es donar a coneixer l’atencio pal·liativa com un dret i una necessitat que te tota persona que es troba en un proces de final de vida. S’ha estructurat mitjancant sessions a diferents pobles de les illes, dirigits a la ciutadania, amb la participacio de representants de les entitats citades. Es presenten els resultats d’aquest programa, amb la conclusio que la satisfaccio percebuda dels assistents ha estat molt bona. EnglishA collabora...

Research paper thumbnail of Clinical Implementation and Initial Experience of Neutrophil Gelatinase-Associated Lipocalin Testing for the Diagnostic and Prognostic Assessment of Acute Kidney Injury Events in Hospitalized Patients

Nephron, 2021

Introduction: The use of novel kidney injury biomarkers has been shown to improve diagnostic asse... more Introduction: The use of novel kidney injury biomarkers has been shown to improve diagnostic assessment and prognostic prediction in various populations with acute kidney injury (AKI), but their use in a standard clinical practice have been rarely reported. Methods: We reported the clinical implementation of neutrophil gelatinase-associated lipocalin (NGAL) measurement for routine AKI diagnostic workup of patients receiving nephrology consultation in a tertiary academic centre. Specific focus was made on the diagnostic performance to discriminate functional (“pre-renal”) from intra-renal AKI and to predict AKI progression. Results: Forty-five urine NGAL (uNGAL) and 25 plasma NGAL (pNGAL) samples in the first 50 consecutive patients were analysed. KDIGO Stage 1, 2, 3 AKI, and renal replacement therapy occurred in 10%, 40%, 50%, and 24% of cases, respectively. The uNGAL was lower in patients with transient AKI (<48 h) and no sign of urinary tract infections (37 [25–167] ng/mL) than...

Research paper thumbnail of S2995 Gastrointestinal Hemorrhage Due to Duodenal Varix: A Case Report

American Journal of Gastroenterology, 2021

Research paper thumbnail of S2107 Esophagitis Dissecans Superficialis: A Rare but Frequently Missed Diagnosis

American Journal of Gastroenterology, 2021

Research paper thumbnail of S1940 Barrett's Esophagus With Multiple Neuroendocrine Tumors

American Journal of Gastroenterology, 2020

Research paper thumbnail of Frequency Limited Weighted Model Reduction Algorithm With Error Bound: Application to Discrete-Time Doubly Fed Induction Generator Based Wind Turbines for Power System

IEEE Access, 2021

The state-space representations grant a convenient, compact, and elegant way to examine the physi... more The state-space representations grant a convenient, compact, and elegant way to examine the physical systems, e.g., induction and synchronous generator-based wind turbines, with facts readily available for stability, controllability, and observability analysis. In this article, the model order reduction of a stable doubly fed induction generator based variable-speed wind turbines model is performed with the aid of the proposed stability preserving balanced realization algorithm based on discrete frequency weights and limited frequency-interval. The frequency weighting and limited frequency-intervals-based model order reduction techniques presented by Enns's and Wang & Zilouchian produce an unstable reduced-order model at certain frequency weights and frequency intervals, respectively. To overcome this main drawback, many researchers provided a solution to preserve the stability of the reduced-order model. However, these existing approaches also produce an unstable reduced-order model in some conditions and produce a large variation to the original system; consequently, they provide a large approximation error. The proposed approach not only ensures the stability of the reduced-order model but also provides low approximation error as compared with other existing approaches and also provides an easily calculable a priori error bound formula. The proposed work produces steady and precise outcomes in contrast to conventional reduction methods, which shows the efficacy of the proposed algorithm.

Research paper thumbnail of Fault-Tolerant Sliding Mode Control of a Quadrotor UAV with Delayed Feedback

International Journal of Mechanical Engineering and Robotics Research, 2020

Research paper thumbnail of Colovesicular fistula from Candida dubliniensis in an immunocompetent resulting in poor outcome

Journal of Community Hospital Internal Medicine Perspectives, 2020

Research paper thumbnail of Design of SMC with a Conditional Integrator for Pitch Control of a Mini UAV

Proceedings of the 5th International Conference of Control, Dynamic Systems, and Robotics (CDSR'18), Jun 1, 2018

An SMC with a conditional integrator for pitch control with velocity regulation as a secondary ob... more An SMC with a conditional integrator for pitch control with velocity regulation as a secondary objective for a mini UAV is discussed in this paper. For controller design, the longitudinal dynamics of the mini UAV are decomposed into its phugoid mode and short period mode approximations. The controller design is based on the linear model however for implementation purpose nonlinear model of longitudinal dynamics of the mini UAV is used. The robustness of the controller to disturbances because of model uncertainties and external sources are shown through extensive simulations. The results, especially the transient response shows that this controller outperforms the controller based on conventional integrators.

Research paper thumbnail of Land-use changes across distant places: design of a telecoupled agent-based model

Journal of Land Use Science, 2019

Research paper thumbnail of A Case of Auto-brewery Syndrome Treated with Micafungin

Research paper thumbnail of Favorable Rates of Post-ERCP Pancreatitis With Endoscopic Sphincterotomy With Delayed Sphincteroplasty Approach

American Journal of Gastroenterology, 2019

Research paper thumbnail of Argon Plasma Coagulation-Based Removal of Partially-Covered Esophageal Self-Expanding Metal Stent for Anastomotic Leaks Despite Extended Embedment - Challenging Current Standards of Care

American Journal of Gastroenterology, 2019