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1.
Heliyon ; 10(3): e25380, 2024 Feb 15.
Artículo en Inglés | MEDLINE | ID: mdl-38352770

RESUMEN

Concerns about the spread of disinformation, information disorder, and fake news have grown to unprecedented proportions in recent years. This study aimed to explore how to mitigate this communication disorder and achieve a balance in the relationship among the public, the media, the dominant institutions, and the digital influencers in society. This study used the grounded meta-synthesis method, which relies on induction, to arrive at a new model according to the objective of the study. The process of open, axial, and selective coding included 101 studies, books, reports, and guides, starting with the Public Opinion by Walter Lippmann, issued in 1922, and ending with the 2022 Edelman Trust Barometer. The results led to the proposal of a new model to reduce communication dysfunction, in which media and information literacy (MIL) plays a crucial role in increasing an individual's ability to resist disinformation and enhancing their ability to monitor the performance of institutions, as well as expanding the circle of influencers in social media. To fulfil the three goals and contribute to achieving a degree of functional balance in communication within societies, the model recommends enhancing MIL. Other intervening variables, such as the fragility of political, cultural, and legal structures, should not be disregarded.

2.
Mymensingh Med J ; 32(4): 1156-1162, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37777915

RESUMEN

Electro-physiological diagnosis of mild Carpal Tunnel Syndrome (CTS) based on traditional median motor and sensory studies are often inconclusive. Therefore, we wanted to investigate the utility of Median-to-Ulnar Sensory Conduction studies in diagnosis of mild CTS. Data from Nerve conduction study (NCS) of 82 cases with symptoms suggestive of CTS from September 2017 to October 2020 attending electrophysiology department of Mount Adora Hospital, Sylhet, Bangladesh was selected for study. About 54(66.0%) out of 82 symptomatic patients were diagnosed as CTS by the conventional method, and 28(34.0%) patients required further investigation as their test report were found to be inconclusive. combining methods showed 70(85.37%) were found to be positive and 12(14.63%) were negative in comparison study. Thus, it can be concluded that those patients found to be negative in conventional methods; comparison method is an option for diagnostic confirmation.


Asunto(s)
Síndrome del Túnel Carpiano , Humanos , Síndrome del Túnel Carpiano/diagnóstico , Nervio Mediano , Estudios de Conducción Nerviosa , Nervio Cubital/fisiología , Conducción Nerviosa/fisiología , Bangladesh
3.
Sci Rep ; 9(1): 319, 2019 Jan 22.
Artículo en Inglés | MEDLINE | ID: mdl-30670731

RESUMEN

We demonstrate a simple and flexible technique to efficiently activate micro/nano-electromechanical systems (MEMS/NEMS) resonators at their fundamental and higher order vibration modes. The method is based on the utilization of the amplified voltage across an inductor, L, of an LC tank resonant circuit to actuate the MEMS/NEMS resonator. By matching the electrical and mechanical resonances, significant amplitude amplification is reported across the resonators terminals. We show experimentally amplitude amplification up to twelve times, which is demonstrated to efficiently excite several vibration modes of a microplate MEMS resonator and the fundamental mode of a NEMS resonator.

4.
Chin J Integr Med ; 22(3): 177-84, 2016 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-25910704

RESUMEN

OBJECTIVE: To test the in vitro antimicrobial efficacy of water and methanol extracts of 23 plant species that are commonly used in Libyan folk medicine. METHODS: The antimicrobial activity was determined using the well-diffusion method. Four test microorganisms were used namely, Escherichia coli, Salmonella species, Staphylococcus aureus and Bacillus subtilis. The minimum inhibitory concentration (MIC) was determined for the high biologically active crude plant extracts. RESULTS: Among 23 medicinal plants used in the study, only 5 methanolic extracts [Rosmarinus offcinalis L., Carduus marianium L., Lantana camara L., Rhus tripartite (ueria) Grande, and Thymus capitatus (L.) Hoffm (link)] showed the highest antimicrobial activity against Staphylococcus aureus, Bacillus subtilis and Salmonella species, while 22 methanolic and aqueous extracts showed moderate to weak antimicrobial activity on all tested organisms. However 19 of the extracts showed no activity at all against Gram-ve and Gram +ve microorganisms. MIC was found to be 1.25 mg/mL (Thymus capitatus), 3 mg/mL (Rhus tripartite), 4 mg/mL (Carduus marianium), 5 mg/mL (Rosamarinus officinalis) and 5 mg/mL (Lantana camara), respectively. CONCLUSIONS: The present results revealed that, crude methanolic extracts of the investigated Libyan folk medicinal plants exhibited mild to high in vitro antibacterial activities against Gram-positive and Gram-negative microorganisms.


Asunto(s)
Antiinfecciosos/farmacología , Plantas Medicinales/química , Bacterias/efectos de los fármacos , Cromatografía en Capa Delgada , Libia , Pruebas de Sensibilidad Microbiana , Extractos Vegetales/farmacología
5.
Mymensingh Med J ; 23(3): 520-9, 2014 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-25178605

RESUMEN

To evaluate comprehensively the distribution of established risk factors of stroke among Bangladeshi patients. This is an observational study. It involved 8400 stroke patients from different hospitals in Bangladesh over a period of sixteen years. Common established risk factors of stroke e.g. age, sex, family history, hypertension, diabetes, ischemic heart disease, smoking, obesity, dyslipidaemia, alcoholism, use of oral contraceptive pill, lack of fresh fruit consumption etc. were evaluated in these patients through a preformed questionnaire and data were analyzed. Majority of the stroke events occurred after the age of forty (82.3%) and the ischemic stroke (72%) is the most common. Apart from non modifiable risk factors (advancing age, sex, Family history of stroke) hypertension was the most common modifiable risk factor found in stroke patients (57.6%) followed by smoking (44.6%), tobacco use (24.3%), OCP use in female (40% of female stroke), diabetes (23%), ischemic heart disease (17.1%), obesity (10.6%) and dyslipidaemia (5.3%). Lack of fresh fruit consumption and alcoholism were found in some of the patients. Stroke is common after the age of forty. Ischemic events are commonest type of stroke. Hypertension, smoking, tobacco use, diabetes and ischemic heart disease were five most common risk factors of stroke. Outlining the common stroke risk factors in our settings, may help the physicians and care givers in managing this disabling disease properly.


Asunto(s)
Accidente Cerebrovascular/etiología , Adulto , Anciano , Estudios Transversales , Femenino , Humanos , Hipertensión/complicaciones , Masculino , Persona de Mediana Edad , Isquemia Miocárdica/complicaciones , Factores de Riesgo , Fumar/efectos adversos
6.
Mymensingh Med J ; 23(1): 56-61, 2014 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-24584374

RESUMEN

Patients with epilepsy experience recurrent, unprovoked seizures. In most of the cases seizure occurs spontaneously, but there may be association with various triggers. These triggers may act as seizure precipitating factors (SPFs). This study was done to find out the most common SPFs and their relationship to different types epileptic patients attending a tertiary care hospital in Bangladesh. This cross sectional study was carried out in specialized epilepsy weekly outdoor clinic and Medicine outpatient department (OPD) of Dhaka Medical College Hospital from January 2008 to July 2011, which included 1168 epilepsy patients. All patients attending the clinic were included in the study. Epilepsy syndromes were broadly classified into four categories using the classification system of international league against epilepsy (ILAE) namely, generalized epilepsy (GE), localization related epilepsy (LRE), symptomatic and unclassified. Each patient was evaluated and classified by consultant neurologist. All participants were interviewed through a predesigned close ended questionnaire that included a long list of 30 precipitating factors. Among all the patients 71.5% were male, with most common age group 11-20 years (36.8%). About 62% could indentify at least one precipitator. Excitation (25.2%) was the most common SPF reported by patients followed by emotional stress in 17.7%. Fever precipitated seizure in 16.4% of the subjects. A good number of them (15.5%) noticed that whenever there was sleep deprivation, they had an attack of epilepsy. However, drug withdrawal, playing outside and head trauma were also common among the patients, about 11.7%, 11.3% and 8.4% respectively. Most of the patients can identify their seizure precipitant and clustering of many SPFs suggests a common patho-physiologic mechanism for these triggers. Excitation, sleep deprivation, fever, watching television and head trauma showed a strong association with generalized epilepsy. Patients with seizure disorder should be evaluated for presence of SPFs, because identification of these might help in proper management of epilepsy.


Asunto(s)
Epilepsia/complicaciones , Convulsiones/etiología , Adolescente , Adulto , Niño , Estudios Transversales , Femenino , Humanos , Masculino , Persona de Mediana Edad , Factores Desencadenantes , Encuestas y Cuestionarios , Atención Terciaria de Salud
7.
Mymensingh Med J ; 22(1): 200-5, 2013 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-23416833

RESUMEN

A 39 years old, right handed, hypertensive non-diabetic smoker presented with ischemic stroke with left sided hemiplegia and absent right upper limb peripheral pulses. Possible causes of young stroke were searched. Cerebral digital subtraction angiography (DSA) revealed 95% stenosis at origin of brachiocephalic trunk with absent flow in right sub-clavian artery and 75% stenosis at osteum of left vertebral artery with flow reversal through right vertebral artery. Subsequently, stents were placed within the stenosed portion Right brachiocephalic trunk and left vertebral artery. The intervention resulted in immediate restoration of right upper limb pulses and cessation of flow reversal in vertebral artery.


Asunto(s)
Tronco Braquiocefálico/cirugía , Accidente Cerebrovascular/cirugía , Arteria Subclavia/cirugía , Arteria Vertebral/cirugía , Adulto , Angiografía de Substracción Digital , Brazo/irrigación sanguínea , Procedimientos Endovasculares , Humanos , Masculino , Pulso Arterial , Stents , Accidente Cerebrovascular/etiología
8.
Surg Laparosc Endosc Percutan Tech ; 16(6): 439-44, 2006 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-17277665

RESUMEN

Choledochal cysts are rare cystic dilatations of the extrahepatic biliary tree, the intrahepatic bile ducts, or both and carry a substantial risk of malignant transformation. Type I choledochal cysts, which involve the entire common hepatic and common bile ducts, represent 80% to 90% of these lesions. We report laparoscopic excision of symptomatic type I choledochal cyst in a 37-year-old woman, and review the literature. Laparoscopic excision of the extrahepatic biliary tree from the hepatic confluence to the anomalous pancreatobiliary junction with en bloc cholecystectomy and reconstruction with a Roux-en-Y hepaticojejunostomy was accomplished. Postoperative recovery was uneventful with a hospital stay of 3 days. She remains well and asymptomatic at 6 months of follow-up. Laparoscopic excision of choledochal cysts may be safely accomplished with a prompt recovery. Further experience with this approach in larger number of patients is justified and long-term follow-up data are needed.


Asunto(s)
Procedimientos Quirúrgicos del Sistema Biliar/métodos , Quiste del Colédoco/cirugía , Yeyunostomía/métodos , Laparoscopía , Hígado/cirugía , Adulto , Anastomosis en-Y de Roux , Colangiopancreatografia Retrógrada Endoscópica , Femenino , Humanos , Tiempo de Internación
9.
J Asian Nat Prod Res ; 7(1): 81-5, 2005 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-15621607

RESUMEN

A new chromone, named 5,6-dihydroxy-2-methylchromone (FL-2), along with seven known flavonoids, 5-hydroxy-7,3,3',4'-tetramethoxyflavone (FL-3), 5,4'-dihydroxy-6,7,8-trimethoxyflavone (FL-4), 5,4'-dihydroxy-7,8-dimethoxyflavone (FL-5), 4-methoxychalcone (FL-6), 7,4'-dimethoxyapigenin (FL-7), 5,7,4'-trihydroxy-2',3',6'-trimethoxyisoflavone (FL-8 a rare flavonoid), acacetin-7-O-glucoside (FL-9) and acacetin-7-O-neohesperidoside (FL-10), and beta-sitosterol-D-glucoside (FL-1) have been isolated from the leaves of Ficus lyrata. Their structures have been established on the basis of chemical and spectral evidence (IR, UV, 1H NMR, 13C NMR and mass spectra).


Asunto(s)
Cromonas/aislamiento & purificación , Ficus/química , Cromonas/química , Espectroscopía de Resonancia Magnética
10.
Nat Prod Res ; 18(3): 269-75, 2004 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-15143839

RESUMEN

The isolation of a new biflavonoid, identified as I-3, II-3, I-5, II-5, I-7, II-7, I-4', II-4'-octahydroxy [I-2', II-2'] biflavone, from the leaves of Garcinia nervosa is reported. The structure was established by chemical and physical means (IR, UV, 1H-NMR, 13C-NMR data).


Asunto(s)
Biflavonoides/química , Biflavonoides/aislamiento & purificación , Garcinia/química , Espectroscopía de Resonancia Magnética , Hojas de la Planta/química
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