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An ab Initio Study of Mechanical and Electronic Properties of Stable Phases of CsXBr₃ (X = Ge, Si) Compounds for Solar Cell Applications

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Open Journal of Microphysics 2023年第2期13卷 15-26页

作者： kennedy Juma Wanyama Phillip Wilfsen Otieno Nyawere james Sifuna Department of Physical and Biological Sciences Kabarak University Nakuru Kenya Department of Natural Sciences Catholic University of Eastern Africa Nairobi Kenya

Utilising the density functional theory, the mechanical and electrical characteristics of Cesium Germanium Bromide, CsGeBr3 and Cesium Silicon Bromide CsSiBr3 compounds were computed. The complicated and unique physical and chemical properties of these materials include the ideal geometric property, a limited electronic band structure, a charge density distribution, and specific van Hove singularities in the electronic density of states. With the use of the quantum espresso code and pseudo-potentials taken from the quantum espresso data repository, we have applied density functional theory. Plane Wave (PW) basis set and Projector Augmented Wave (PAW) pseudo potentials were used to compute the ground state energy. For the exchange correlation, where plane wave basis sets are used to expand the electronic structure wave function, the Generalised Gradient Approximation (GGA) was employed. For the computation of mechanical behaviour, including the bulk modulus and elastic constants with their derivatives, Thermo_pw was used as a post-processing algorithm. The theoretical framework that is being taught gives a thorough understanding of the many qualities and possible uses for solar cells and other opto-electronic devices. Both the cubic (high-temperature) and tetragonal (low-temperature) phases of CsGeBr3 were discovered to have an appropriate gap for solar cells. The edge-sharing monoclinic phase exhibits a greater distortion of the band structure than the cubic phase, which has a lower total energy and a somewhat bigger electronic gap. Although our estimations are less definite because the matching silicon-based compounds have not yet been created, they nonetheless point to a small gap for cubic CsGeBr3 of about 0.2 - 0.8 eV.

关键词： Electronic Mechanical Stability Perovskite

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Football injuries of the ankle: A review of injury mechanisms, diagnosis and management

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World Journal of Orthopedics 2016年第1期7卷 8-19页

作者： Raymond J Walls Keir A Ross Ethan J Fraser Christopher W Hodgkins Niall A Smyth Christopher J Egan james Calder John G kennedy Department of Foot and Ankle Surgery Hospital for Special Surgery New York University of Miami/Jackson Memorial Hospital Department of Trauma and Orthopaedic Surgery Chelsea and Westminster Hospital

Football is the most popular sport worldwide and is associated with a high injury rate, most of which are the result of trauma from player contact. Ankle injuries are among the most commonly diagnosed injuries in the game. The result is reduced physical activity and endurance levels, lost game time, and considerable medical cost. Sports medicine professionals must employ the correct diagnostic tools and effective treatments and rehabilitation protocols to minimize the impact of these injuries on the player. This review examines the diagnosis, treatment, and postoperative rehabilitation for common football injuries of the ankle based on the clinical evidence provided in the current literature.

关键词： Management Soccer Football Ankle Injury

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Outcomes following minimally invasive dorsal cheilectomy for hallux rigidus:A systematic review

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World Journal of Orthopedics 2024年第6期15卷 585-592页

作者： Katherine Esser james J Butler Mackenzie Roof Nathaniel P Mercer Michael C Harrington Alan P Samsonov Andrew J Rosenbaum John G kennedy Department of Orthopaedic Surgery University of Toledo Medical Center University of Toledo College of Medicine and Life SciencesToledoOH 43614United States Department of Orthopedic Surgery NYU Langone HealthNew YorkNY 10002United States Department of Orthopedic Surgery Albany Medical CenterAlbanyNY 12208United States

BACKGROUND Cheilectomy of the 1^(st)metatarsophalangeal joint(MTPJ)is one of the most common procedures for the management of hallux ***,there is no consensus regarding outcomes following minimally invasive dorsal cheilectomy(MIDC)for the management of hallux *** To evaluate outcomes following MIDC for the management of hallux *** During November 2023,the PubMed,EMBASE and Cochrane Library databases were systematically reviewed to identify clinical studies examining outcomes following MIDC for the management of hallux *** Six studies were *** total,348 patients(370 feet)underwent MIDC for hallux rigidus at a weighted mean follow-up of 37.9±16.5 *** distribution of patients by Coughlin and Shurna's classification was recorded in 4 studies as follows:Ⅰ(58 patients,27.1%),Ⅱ(112 patients,52.3%),Ⅲ(44 patients,20.6%).Three studies performed an additional 1^(st)MTPJ arthroscopy and debridement following *** intra-articular bone debris was observed in 100%of patients in 1 *** weighted mean American orthopedic foot and ankle society score improved from a preoperative score of 68.9±3.2 to a postoperative score of *** complication rate was 8.4%,the most common of which was persistent joint pain and ***-two failures(8.7%)were ***-three secondary procedures(8.9%)were performed at a weighted mean time of 8.6±3.2 months following the index *** This systematic review demonstrated improvements in subjective clinical outcomes together with a moderate complication rate following MIDC for the management of hallux rigidus at short-term follow-up.A moderate reoperation rate at short-term follow-up was *** marked heterogeneity between included studies and paucity of high quality comparative studies limits the generation of any robust conclusions.

关键词： Minimally invasive dorsal cheilectomy Hallux rigidus The first metatarsophalangeal joint Cheilectomy Minimally invasive surgery

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Antimicrobial Resistance Patterns and Molecular Characterization of <i>Klebsiella pneumoniae</i>in Clinical Isolates at Mbarara Regional Referral Hospital

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Advances in Infectious Diseases 2019年第3期9卷 197-225页

作者： Joseph Turugurwa james Mwesigye kennedy Kassaza Fredrick Byarugaba Taseera Kabanda Benson Musinguzi Department of Microbiology Faculty of Medicine Mbarara University of Science and Technology Mbarara Uganda Department of Medical Laboratory Sciences School of Allied Health Sciences Kampala International University Bushenyi Uganda

Background: Klebsiella pneumoniae is one of the most frequent opportunistic pathogens causing a range of infections and being resistant for beta-lactamases (ESBL) and Carbapenemases. Aim: The aim of the present study was to determine the antimicrobial resistance patterns and molecular characterization establishing the phenotypes and genotypes associated with drug resistance, an antibiogram of genotypically positive isolates for resistance of Klebsiella pneumoniae in clinical isolates at MRRH. Materials and Methods: A laboratory-based descriptive cross-sectional study that was conducted from September 2018 to May 2019 at MRRH. Klebsiella pneumoniae was identified by cultural and biochemical methods. Antibiotic sensitivity test was performed by modified Kirby-Bauer disc diffusion technique. ESBL production in Klebsiella pneumoniae was tested by double-disc synergy test, Carbapenemase production by MHT, Boronic Acid or EDTA test using Meropenem phenotypically and both resistance confirmed genotypically by Multiplex PCR. Results: Out of 1055 clinical isolates, 298 (28.2%) were found positive for ***, 175 isolates were subcultured among which 22 (12.57%) were K. pneumoniae based on API 20E. Overall Sensitivity patterns of these Klebsiella pneumoniae isolates to Ceftriaxone, (Amoxicillin/Clavulanate), Gentamicin, Cefepime, Ciprofloxacin, Cefoxitin, Nitrofurantoin, Cefuroxime, piperacillin/tazobactam, Meropenem, Ceftazidime and cefotaxime were 72.7%, 63.7%, 54.5%, 45.5%, 31.8%, 31.8%, 27.3%, 27.3%, 22.7%, 22.7%, 18.2%, 9.1%, 9.1% respectively. ESBL producing K. pneumoniae was found at 68.18% (15/22) phenotypically. Genotypically;the ESBL genes were blaCTX-M (100%), blaSHV (80%) and blaTEM (100;47%);8/15 (73.3%) had CTX-M, SHV, TEM, 4/15 (26.67%) CTX-M, TEM, 3/15 (20.00%) CTX-M and SHV. Carbapenemase producing K. pneumoniae was found at 31.82% (7/22) phenotypically;1/7 (14.28%) by MHT, 4/7 (57.14%) Boronic acid test and 2/7 (28.58%) EDTA test. Genotypically;3/4 [

关键词： Antimicrobial Resistance Patterns ESBLs Carbapenemase Resistance Klebsiella pneumoniae

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Colonoscopy quality with Entonox? vs intravenous conscious sedation:18608 colonoscopy retrospective study

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World Journal of Gastrointestinal Endoscopy 2017年第9期9卷 471-479页

作者： Alexander R Robertson Nicholas A kennedy james A Robertson Nicholas I Church Colin L Noble Department of Gastroenterology Western General Hospital Centre for Genomic and Experimental Medicine University of Edinburgh Department of Gastroenterology University of Exeter School of Life Sciences University of Nottingham Royal Infirmary of Edinburgh

AIM To compare colonoscopy quality with nitrous oxide gas(Entonox?) against intravenous conscious sedation using midazolam plus *** A retrospective analysis was performed on a prospectively held database of 18608 colonoscopies carried out in Lothian health board hospitals between July 2013 and January *** quality of colonoscopies performed with Entonox was compared to intravenous conscious sedation(abbreviated in this article as IVM).Furthermore,the quality of colonoscopies performed with an unmedicated group was compared to *** study used the following key markers of colonoscopy quality:(1) patient comfort scores;(2) caecal intubation rates(CIRs); and (3) polyp detection rates (PDRs).We used binary logistic regression to model the *** There was no difference in the rate of moderate-toextreme discomfort between the Entonox and IVM groups (17.9% vs 18.8%; OR = 1.06,95%CI: 0.95-1.18,P = 0.27).Patients in the unmedicated group were less likely to experience moderate-to-extreme discomfort than those in the IVM group(11.4% vs 18.8%; OR = 0.71,95%CI: 0.60-0.83,P < 0.001).There was no difference in caecal intubation between the Entonox and IVM groups(94.4% vs 93.7%; OR = 1.08,95%CI: 0.92-1.28,P = 0.34).There was no difference in caecal intubation between the unmedicated and IVM groups (94.2% vs 93.7%; OR = 0.98,95%CI: 0.79-1.22,P = 0.87).Polyp detection in the Entonox group was not different from IVM group (35.0% vs 33.1%; OR = 1.01,95%CI: 0.93-1.10,P = 0.79).Polyp detection in the unmedicated group was not significantly different from the IVM group (37.4% vs 33.1%; OR = 0.97,95%CI: 0.87-1.08,P = 0.60).CONCLUSION The use of Entonox was not associated with lower colonoscopy quality when compared to intravenous conscious sedation using midazolam plus opioid.

关键词： Gastrointestinal endoscopy Colonoscopy Caecal intubation Benzodiazepine Polyp detection Nitrous oxide Entonox Midazolam Sedation Unsedated

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Growth and chemical responses of trembling aspen to simulated browsing and ungulate saliva

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Journal of Plant Ecology 2016年第4期9卷 474-484页

作者： Ken Keefover-Ring kennedy F.Rubert-Nason Alison E.Bennett Richard L.Lindroth Department of Entomology University of Wisconsin-Madison1630 Linden Dr.MadisonWI 53706USA The james Hutton Institute InvergowrieDundee DD25DAScotlandUK

Aims Woody plant-browser systems represent an understudied facet of *** subjected four genotypes of trembling aspen to artificial browsing,similar to that of a large mammalian herbivore,and applied deer saliva to clipped and unclipped trees to assess:(i)the effects of artificial browsing on aspen growth and phytochemistry of leaves and stems,(ii)genotypic variation in responses and(iii)potential alterations of responses by mammalian *** Potted aspen trees were grown outdoors on the University of Wisconsin-Madison *** experiment consisted of a fullycrossed,2×2×4 randomized complete block design,with two levels of artificial browsing(unclipped and clipped),two levels of saliva application(no saliva and saliva)and four aspen *** simulate ungulate browsing damage,we removed the upper 50%of the stem of half of the trees by pinching the stem with needle-nosed pliers and then separating it by *** half of the damaged trees,we immediately swabbed the wound with deer *** in the unclipped plus saliva treatment were swabbed with saliva at the 50%height *** assess the effects of clipping and saliva application,we harvested all trees after 2 months and measured various growth and chemical *** measurements included height,vertical growth,mass of leaves,stems and roots,leaf number and area and bud *** parameters included defensive,nutritional and structural components of both foliage and *** Findings Clipping affected most of the growth parameters measured,decreasing tree height,leaf,stem,root and total tree mass and leaf *** trees had greater vertical growth,more leaves and higher specific leaf area(SLA)than unclipped *** saliva had little to no effect on plant growth response to the clipping *** budset was delayed by clipping and varied among genotypes but not in response to saliva *** also affected most of the phytochemical variables measure

关键词： ungulate browsing deer saliva defensive chemistry genetic variation Populus tremuloides tolerance

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Prevalence of hyponatremia in acute medical admissions in tropical Asia Pacific Australia

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Asian Pacific Journal of Tropical Medicine 2014年第1期7卷 40-43页

作者： Usman H.Malabu David Porter Venkat N.Vangaveti Monsur Kazi R.Lee kennedy Department of Medicine Townsville Hospital/James Cook UniversityQueenslandAustralia Department of Pathology Townsville Hospital/James Cook UniversityQueenslandAustralia Department of Medicine Deakin UniversityVictoriaAustralia

Objective:To determine prevalence of hyponatremia in acute medical admissions in Northern ***:We studied 469 consecutive acute medical admissions to a hospital in Australia's Far North Queensland during the colder months of June and July *** of hyponatremia and its relationship with gender,age,diagnosis and prognosis in acute medical admissions were ***:On admission,hyponatremia(plasma sodium<136 mmol/L)was present in 39.4%of patients,with mild(130—135 mmol/L),moderate(126-129 mmol/L)and severe?126 mmol/L)hyponatremia being present in 25.2%,10.7*and 3.6****,adding together admission hyponatremia with that developing during admission,45.2%of patients were affected with 11.5%moderate hyponatremia cases and 4.1%severe *** and hyperkalemia were present in 17.0%and 18.1*,***,275/469 patients(58.6*)presented with an electrolyte *** were significant correlations of hyponatremia with age but not with gender and in-hospital *** of hyponatremia was high across all diagnostic ***:The prevalence of hyponatremia appears to be high in the tropical North Australian population,being the highest prevalence reported amongst acute hospital *** previously reported correlations with age and mortality do appear to hold good for this population with a high prevalence of electrolyte *** prospective analysis on a larger population in the area is needed to confirm our findings.

关键词： Hyponatremia Prevalence Acute admissions Tropical Asia Pacific Australia

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An unusual emergency department case： ruptured ectopic pregnancy presenting as chest pain

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World Journal of Emergency Medicine 2017年第1期8卷 71-73页

作者： Eric Dichter james Espinosa james Baird Alan Lucerna Department of Emergency Medicine Rowan University SOM Kennedy University Hospital Stratford New Jersey USA

INTRODUCTIONEctopic pregnancy occurs at a rate of 1%-2% of all pregnancies, and tends to occur at a higher rate （up to 4%） in patients receiving fertility treatments. Women with ectopic pregnancies are often asympto... 详细信息

关键词： emergency department case presenting as chest pain

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Role of human papillomavirus in oropharyngeal squamous cell carcinoma: A review

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World Journal of Clinical Cases 2014年第6期2卷 172-193页

作者： Robbie SR Woods Esther M O'Regan Susan kennedy Cara Martin John J O'Leary Conrad Timon Department of Otolaryn-gology Royal Victoria Eye and Ear Hospital Department of Histopa-thology St. James’s Hospital Department of Histopathology Royal Victoria Eye and Ear Hospital Molecular Pathology Research Coombe Women and Infants University Hospital

Human papillomavirus(HPV) has been implicated in the pathogenesis of a subset of oropharyngeal squamous cell carcinoma. As a result, traditional paradigms in relation to the management of head and neck squamous cell carcinoma have been changing. Research into HPVrelated oropharyngeal squamous cell carcinoma is rapidly expanding, however many molecular pathological and clinical aspects of the role of HPV remain uncertain and are the subject of ongoing investigation. A detailed search of the literature pertaining to HPV-related oropharyngeal squamous cell carcinoma was performed and information on the topic was gathered. In this article, we present an extensive review of the current literature on the role of HPV in oropharyngeal squamous cell carcinoma, particularly in relation to epidemiology, risk factors, carcinogenesis, biomarkers and clinicalimplications. HPV has been established as a causative agent in oropharyngeal squamous cell carcinoma and biologically active HPV can act as a prognosticator with better overall survival than HPV-negative tumours. A distinct group of younger patients with limited tobacco and alcohol exposure have emerged as characteristic of this HPV-related subset of squamous cell carcinoma of the head and neck. However, the exact molecular mechanisms of carcinogenesis are not completely understood and further studies are needed to assist development of optimal prevention and treatment modalities.

关键词： Human papillomavirus Human papillomavirus Oropharynx Oropharyngeal Squamous cell carcinoma Head and neck Oncology

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Acute atraumatic pinna (auricular) perichondritis

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World Journal of Emergency Medicine 2018年第2期9卷 152-153页

作者： Alan Lucerna james Espinosa Combined Emergency Medicine/Internal Medicine Rowan University SOM/Kennedy UniversityHospital Stratford NJ USA Department of Emergency Medicine Rowan University SOM/Kennedy University Hospital Stratford NJ USA

Perichondritis of the external ear is referred to inthe literature as pinna perichondritis as well as auricularperichondritis. Pinna （auricular） perichondritis is aninfection involving cartilage and subcutaneous *** resulting infection produces swelling which canbe severe, and can lead to focal ear necrosis. The termperichondritis may even be considered a misnomer＂as the cartilage is almost always involved.＂[1] Pinna（auricular） perichondritis presents with signs andsymptoms that can include pain。

关键词： Acute atraumatic pinna auricular perichondritis

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