Symmetries of the Weyl tensor in Bianchi V spacetimes

Symmetries of geometrical and physical quantities in general relativity provide important information about the curvature structure of the spacetimes. Symmetries of the curvature and the Weyl tensors, known as curvature and Weyl collineations respectively, are two of such important symmetries. Some results on these symmetries for Bianchi type V spacetimes are discussed.Comment: 4 pages; Proc. 11th Marcel Grossmann Meeting on General Relativity, World Scientific, 200

Bilateral Hand-Assisted Laparoscopic Renal Surgery in the Supine Position: The Spleen at Risk

The spleen appears to be at increased risk for injury during hand-assisted, bilateral laparoscopic renal procedures when the patient is placed in the “airplanes” supine position

Impact of Corporate Governance on Performance of a Firm: A Comparison between Commercial Banks and Financial Services Companies of Pakistan

There is vital role of corporate governance in the establishment of a competitive market; this is also suggested by the empirical studies that nations having good corporate governance practices tend to have strong growth in their corporate sectors. This study examines the impact of corporate governance on the performance of firm. The impact of Board attributes, Audit committee attributes and Ownership attributes was check on Return on Equity and Return on Assets of the Firms. The data related to the study was for Six years from 2009 to 2011 from 9 commercial banks and 9 financial service companies, listed in Karachi Stock Exchange based on convenience sampling. There were total 108 panel observations. Multiple regression (Panel least square) was used to analyze the data.The results show that Board Independence has significant impact on Return on Equity of the firm while Board size and Audit Committee Independence have significant impact on Return on Assets. Keywords:Board size, Audit Committee Independence, Board independence, Ownership Structure, Ownership concentration, Corporate governanc

Evaluation of Records of Oral and Maxillofacial Surgery Cases Reported at Abbasi Shaheed Hospital and Karachi Medical and Dental College, Pakistan

Background: Oral and Maxillofacial Surgery department is a diverse field in dentistry. Record maintenance has been established as one of the key factors in the success and integrity of health care institutes.Objective: The objective of the study was to evaluate the records of oral and maxillofacial surgery casesreported to oral and maxillofacial surgery department, Abbasi Shaheed Hospital and oral surgery OPD ofKarachi Medical and Dental College.Methods: Cross sectional study was conducted in at ASH and KMDC from July 2019 to September 2019.The data from January 2017 to July 2019 was retrospectively noted through electronic surgical recordof ASH and records of the Oral Surgery OPD of KMDC. Inclusion criteria was patients records of bothgenders of 5–70 years age, having complaint of any oral or dental pathology or pathologies, trauma andimpactions. Data was calculated manually by calculating frequencies and percentages for the trauma,impaction and pathology cases of patients.Results: In 2017, 239 cases were treated under general anesthesia from which trauma 11. 45% (n=11),followed by 48. 11% (n=115) cases of oral pathologies, total 11.7% (n=28) cases of complicated exodontias. In2018, among 211, 51.1% (n=108) cases were trauma followed by 39.3% (n=83) cases of oral pathologies,whereas, total 9.4% (n=20) complicated exodontias cases were observed. During 2019 (January to July),168 cases 36.2% (n=62) cases were diagnosed as trauma, in oral pathology, overall 36.2% (n=62) caseswere surgically excised. Total 23.2% (n=39) complicated exodontias. In 2017, 25122 cases were reported in Surgery OPD of Karachi Medical and Dental College. Total 36.2% (n=9097) teeth were extracted from which 1.93% (n=486) cases were surgical impaction. On the other hand, 1.65% (n=416) patients were treated through minor oral surgeries. In 2018, 29008 cases were reported in Surgery OPD. Total 42.7% (n=12377) teeth were extracted from which 0.92% (n=268) cases were surgical impaction. On the other hand, 0.71% (n=208) patients were treated through minor surgeries. In 2019, January till July 13028 cases were reported in Surgery OPD. Total42.6% (n=5559) teeth were extracted from which 0.66% (n=87) cases were surgical impaction. On the other hand, 0.68% (n=89) patients were treated through minor surgeries.Conclusion: It has been concluded that evaluation of the records of oral and maxillofacial surgery casesreported to oral and maxillofacial surgery department, Abbasi Shaheed Hospital and oral surgery OPD ofKarachi Medical and Dental College were high and appropriate measures should be taken in order tomanage these problems timely and effectively

Preoperative cardiac evaluation in proximal femur fractures and its effects on the surgical outcome

OBJECTIVE: The aim of the current study was to evaluate the impact of cardiac risk stratification and preoperative cardiac evaluation on final outcomes in patients with acute proximal femur fractures. METHODS: This retrospective review included one hundred and three patients who underwent a preoperative cardiac evaluation prior to proximal femur fracture operation between 2004 and 2007 at a tertiary care hospital. Patients were divided into two groups. Group A included 76 patients who were tested with ECG only and Group B included 27 patients with additional clearance. All of these files were reviewed according to a set pro forma. Statistical analysis was done using the SPSS 17 software. The Student\u27s t-test and Mann-Whitney U test were applied to compare two means. RESULTS: Fifty-three patients had intertrochanteric fractures and 50 had femoral neck fractures. Only 7 patients had a metabolic equivalent task of less than 4. Group B patients had significant delay in time from triage to surgery (p CONCLUSION: Preoperative cardiac evaluation is associated with delay in surgery and subsequent ambulation. Delay in surgery is not associated with increased perioperative mortality at our institute. However, the set of guidelines proposed by ACC/AHA should be followed, as the selection of patients for additional investigation was not justifiable in most cases

Effect of Ergonomical Factors on the Employees

To improve and enlightening production ergonomics is a search widespread to numerous organizations in diverse engineering and management zones. At the foundation is an ambition to eradicate hazards for job concerned musculoskeletal disorders, but recent observations on ergonomics have developed the discipline from a merely physiological, anthropometrical, and Psychosocial influential apprehension to an organizational, systems performance discipline. This research recommends that in an organization ergonomics infrastructure is made up of the structural, technical, executive and stakeholder comparative circumstances that allow or obstruct development of ergonomics. These circumstances spotlight on the positioning of diverse employees towards ergonomics concerns in an organization, the relationships between user, workers or employees, scenario, scheme and strategy they use for arguments, and the manipulate that occur from industry-particular culture, insolences and technical incorporation (or elimination) of ergonomics into engineering and production progressions. The information deduced from the research in this paper has been produced together with pertinent theoretical perceptions originated in the literature, into a Tentative Agenda which conducts empirical data assembly intended at planning the ergonomics infrastructure in an organization. Its step-by-step methodical appraisal of circumstances at diverse hierarchical levels in the organization should serve ergonomics experts and managers alike in classifying pathways and obstructions to improve production ergonomics

Quantification of TrigonellineFrom Coffee Beans and its Correlation with the pH

This project analyzed the amount of trigonelline preseent in coffee beans at various stages of the roasting process.https://scholarworks.uni.edu/chemanaly_fa2018/1010/thumbnail.jp