3-(3-Bromo­benz­yl)-1H-isochromen-1-one

In the title compound, C16H11BrO2, the isocoumarin ring system is planar (r.m.s. deviation = 0.015 Å) and subtends a dihedral angle of 88.90 (2)° with the bromo­benzene ring. In the crystal, mol­ecules are linked, forming a three-dimensional packing pattern involving C—H⋯O inter­actions, Br⋯O contacts [3.4734 (10) Å] and π–π stacking inter­actions with centroid–centroid distances ranging from 3.667 (2) to 3.765 (2) Å

2-(2-Fluoro­benzoyl­meth­yl)benzoic acid

In the title compound, C15H11FO3, the aromatic rings are oriented at a dihedral angle of 69.26 (3)°. In the crystal structure, inversion dimers arise from pairs of inter­molecular O—H⋯O hydrogen bonds, and C—H⋯O hydrogen bonds further consolidate the packing. There are also C—H⋯π contacts between the benzoic acid and 2-fluoro­benzene rings

3-Benzyl­isochroman-1-one

In the mol­ecule of the title compound, C16H14O2, the aromatic rings are oriented at a dihedral angle of 78.49 (3)°. The heterocyclic ring adopts a twist conformation. In the crystal structure, inter­molecular C—H⋯O hydrogen bonds link the mol­ecules into chains along the c axis

Knowledge Management practices: Teachers perception

In today’s world, Knowledge Management is considered as a key to organizational growth and competitiveness. This study aim was to investigate the perception of teachers about main factors affecting the teaching learning process in adopting and applying Knowledge Management. The main objectives of the study were (i) to explore the existing Knowledge Management Practices of teachers in International Islamic University Islamabad (ii) to find out the difficulties regarding knowledge management and (iii) to examine the factors affecting the application of Knowledge Management Practices in improving the performance of teachers. Qualitative method was used as mode of inquiry. Data was collected through an Interview guide. Concurrent exploratory design was used in the study while collecting and analyzing data. Qualitative data was analyzed through content analysis and percentage

Peace Education Practices in Pre-Service Teacher Training Programs: and Analysis

This study was designed to investigate peace education in pre-service teacher training programs in Khyber Pakhtunkhwa, Pakistan. The objectives of the present study to find out :( a) to examine prevailing practices of peace education in pre-service teacher training programs in Khyber Pakhtunkhwa Pakistan. (b) To evaluate the views of teacher Educators regarding the need of peace education in pre-service teacher training programs in Khyber Pakhtunkhwa Pakistan. (c) To suggest way of integrating peace education in pre-service teacher training programs in Khyber Pakhtunkhwa Pakistan. Using Survey method the data were collected through questionnaire from 245 teachers using simple random technique. A questionnaire was developed to investigate the opinions of the participants of the study. The data was analyzed by using the mean score, frequency and percentage

Diagnostic Accuracy of Ultrasound in Detecting Hepatocellular Carcinoma Keeping Histopathology as Gold Standard

Objective: To determine the diagnostic accuracy of USG in detecting hepatocellular carcinoma. Methodology: A total of 70 patients with liver cirrhosis with mass and age 18-60 years of either gender were included. Nodular lesion <3 cm in size, non-specific vascular profile, poor visualization and FNA / biopsy can cause complications were excluded. All the patients were then underwent first ultrasound and then histopathology. The ultrasonography findings were recorded presence or absence of HCC and correlated with CT scan findings. Results: In USG positive patients, 31(44.28%) (88.8%)True Negative had no hepatocellular carcinoma on histopathology (p=0.0001). Overall sensitivity, specificity, positive predictive value, negative predictive value and diagnostic accuracy of ultrasound in detecting hepatocellular carcinoma keeping histopathology as gold standard was 88.57%, 91.43%, 91.18%, 88.89% and 90.0% respectively. Conclusion: This study concluded that grey scale ultrasound along with Doppler ultrasound  is a simple, non-invasive, economical, readily available imaging modality with high sensitivity and accuracy in diagnosing hepatocellular carcinoma.

Diagnostic Measures in Childhood Tuberculosis: A Short Review

The trends of incidence, morbidity and mortality of tuberculosis in children have always remained unclear because of lack of a definitive diagnostic tool in mostly cases. The diagnosis of tuberculosis in children remains a major challenge as it is seldom confirmed and is mostly based on clinical signs, symptoms and special investigations e. g. TST, chest X-ray and sputum smear microscopy. Sputum smear microscopy is positive in less than 10-15% of children with TB and culture yields are nearly about 30-40%. In low burden countries, the triad of (a) known contact with an infectious source case, (b) a positive tuberculin skin test and (c) a suggestive CXR is usually used to establish a diagnosis of childhood TB. The research on childhood tuberculosis is often neglected due to technical difficulties like slow growth in culture, the difficulty of obtaining specimens and the diverse and relatively nonspecific clinical presentation of tuberculosis in this age group. The complexity in making an exact diagnosis of tuberculosis in children have led to the development of several diagnostic approaches like point scoring systems, diagnostic classifications and diagnostic algorithms. The aim of this study was to review and analyse the different diagnostic approaches to childhood tuberculosis. In this paper, the mostly used techniques like culture methods as well as the non-culture methods including serology, biochemistry and polymerase chain reaction and DNA fingerprinting for the diagnosis of tuberculosis will be discussed. Keywords: Diagnostic measures, Childhood, Tuberculosi

3-(3-Fluoro­benz­yl)isochroman-1-one

In the mol­ecule of the title compound, C16H13FO2, the aromatic rings are oriented at a dihedral angle of 74.46 (4)°. The heterocyclic ring adopts a twisted conformation. In the crystal structure, there is a weak C—H⋯π inter­action

3-(3-Fluoro­benz­yl)-1H-isochromen-1-one

The asymmetric unit of the title compound, C16H11FO2, contains two independent mol­ecules. The isochromene ring systems are planar and are oriented with respect to the fluoro­benzene rings at dihedral angles of 87.15 (3) and 87.85 (3)° in the two mol­ecules

Methyl 2,5-dichloro­benzoate

In the mol­ecule of the title compound, C8H6Cl2O2, the benzene ring is oriented with respect to the planar ester group at a dihedral angle of 39.22 (3)°