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1.
Environ Res ; 217: 114621, 2023 01 15.
Artículo en Inglés | MEDLINE | ID: mdl-36347396

RESUMEN

The rapid industrialization of the world is disparagingly manipulating our environment and natural ecosystem. The researchers are taking keen interest to invent novel material as photocatalyst for non-degradable organic pollutants. Solar energy-driven practices employing semiconductors are a novel approach towards wastewater remediation. Here in, we successfully synthesized a vigorous photocatalysts comprising of g-C3N4 and doped ZnO-W/M (M = Co, Ce, Yb, Sm) by co-precipitation followed by metals doping via calcination approach. The structural, morphological, and photocatalytic applications for organic pollutants of synthesized heterostructure nanocomposites were examined by XRD, FTIR, SEM, EDX and UV visible spectrophotometer. Diffraction peaks attributed to both g-C3N4 and ZnO-W were detected in the XRD spectra. The FTIR spectra also inveterate the formation of g-C3N4/ZnO-W/M composites. The SEM images reveal an agglomerated morphology and EDS analysis also confirmed close contact between g-C3N4, ZnO-W and doped metals. The abridged energy band gap of g-C3N4/ZnO-W/M (M = Ce, Yb, Sm, Co) nanocomposites calculated via Tauc plot are 2.68, 2.88, 3.24 and 3.29 eV respectively. Narrowing of bandgap is considered an imperative triumph for the degradation of industrial effluents. The photocatalytic activity was performed against four different dyes and follows the trend Ce > Yb > Sm > Co. The recyclability tests were carried out for different dyes and no substantial catalytic activity loss was observed even after the fourth experimental run, which proves that reported ternary heterojunctions exhibit high mechanical stability and reusability.The species trapping experiment exposed that generated h+ are the principal active specie for dye photodegradation reactions. This work disseminates a novel photocatalyst for the removal of synthetic dyes.


Asunto(s)
Nanocompuestos , Óxido de Zinc , Óxido de Zinc/química , Ecosistema , Catálisis , Nanocompuestos/química , Colorantes
2.
Ann Med Surg (Lond) ; 78: 103899, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-35734692

RESUMEN

Background: Golf is a popular sport played worldwide. The majority of professional golfers work as teaching professionals based at golf clubs. All professional players spend numerous hours on the golf course, placing themselves at increased risk of injury. There have been no recent, large studies investigating injury patterns among male and female professional golfers. Objective: To investigate the frequency, types and mechanism of injury sustained by male and female professional golfers and to compare injury patterns between touring and teaching professionals. Methods: Injury data was analyzed from 77 amateur golfers recruited through a questionnaire asking about their different injuries. A web based survey was conducted focusing on injury frequency, location and mechanism and any subsequent time loss. Factors such as side of injury, investigations for the injury were noted. Results: The study enlisted the participation of 76 patients. One was excluded due to incomplete questionairres Injuries were reported by 34 patients (45%). Eleven patients said they had an elbow injury. The relationship between the number of years the individuals had been playing golf and their history of injury was shown to be significant (p = 0.0257). Warm up and injury have a statistically significant relationship (p = 0.846). Conclusion: In order to contribute to making golf a safer and hence more enjoyable lifetime activity, a greater knowledge of golf-related injuries is required. This study attempts to do so, and the elbow was discovered to be the most damaged region.

3.
Ann Med Surg (Lond) ; 79: 103935, 2022 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-35860148

RESUMEN

Introduction: Neurovascular problems are common in acute fracture. In the emergency room, a thorough clinical evaluation is required, when examined by an orthopedic specialist or emergency doctors. Materials and methods: we registered our project with the audit department. In the first cycle, we looked at notes from 77 patients from November-December 2020, emphasis to neurovascular documentation from both ED and orthopedic Clerking notes. We submitted our findings at our audit meeting and implemented modifications. Two months later, we re-audited, this time with 82 patients as the sample size. Results: 77 patient notes were reviewed in the first cycle, 51% male and 49% female. In ED clerking notes, 22% patients had no neurovascular documentation, compared to 3.8% of patients in orthopedic clerking. 39% ED notes had acronyms written for the neurovascular status, such as NVI, to 20.7% of orthopedic notes. 82 notes were reviewed in the second cycle,44% male and 56% female.7% of ED clerking notes lacked any neurovascular comments, compared to 0% of orthopedic admission sheets. 10% of the ED sheets contained NVI abbreviation, while 4% of ortho notes had the same. There were specific notes on neurovascular state on 68 of the ED admission sheets evaluated, and 74 of the orthopedic notes did the same. Conclusion: In fracture patients, documentation of neurovascular condition was lacking. The documentation of the details of the neurovascular assessment was poor. Increased recording of neurovascular assessment and improved emergency department evaluation of patients presenting with upper and lower limb injuries were aided by the introduction of teachings.

4.
J Coll Physicians Surg Pak ; 28(3): 184-187, 2018 03.
Artículo en Inglés | MEDLINE | ID: mdl-29544572

RESUMEN

OBJECTIVE: To determine the efficacy of metformin alone versus metformin plus simvastatin for treatment of polycystic ovariansyndrome (PCOS). STUDY DESIGN: Randomized controlled trial. PLACE AND DURATION OF STUDY: Maternal and Child Health Centre, Unit II, Pakistan Institute of Medical Sciences (PIMS), from November 2014 to April 2015. METHODOLOGY: One hundred and eight patients (108) were randomly divided into metformin group (n=54) and metformin plus simvastatin group (n=54), detailed clinical history, including menstrual details, was taken with thorough examination performed. Baseline ultrasound was performed to evaluate ovarian size and these were considered enlarged with volume >10cc or with >12 follicles in any one ovary. Blood samples were taken at baseline and after three months of therapy to determine the LH/FSH ratio and lipid profile. Efficacy was defined as >15% decrease in the baseline values. RESULTS: The mean age of patients was 28.82 ±7.18 years. Mean BMI of the patients was 22.41 ±1.55 Kg/m2. Efficacy was achieved in 66.7% patients with metformin alone, while in 92.6% with combination medication (p=0.001). CONCLUSION: The combination of metformin plus simvastatin is more efficacious as compared to metformin alone for management of females with PCOS.


Asunto(s)
Inhibidores de Hidroximetilglutaril-CoA Reductasas/uso terapéutico , Hipoglucemiantes/uso terapéutico , Metformina/uso terapéutico , Ovario/efectos de los fármacos , Síndrome del Ovario Poliquístico/tratamiento farmacológico , Simvastatina/uso terapéutico , Adolescente , Adulto , Quimioterapia Combinada , Femenino , Hormona Folículo Estimulante/sangre , Humanos , Hipoglucemiantes/administración & dosificación , Lípidos/sangre , Persona de Mediana Edad , Pakistán , Síndrome del Ovario Poliquístico/sangre , Testosterona/sangre , Resultado del Tratamiento
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