The Mentoring of Overseas Trained Teachers

Much research has been undertaken into the value of mentoring for beginning teachers. Less research has been done into the mentoring of Overseas Trained Teachers (OTTs). The studies that have been undertaken suggest that mentors’ lack of cultural knowledge and of the pedagogical challenges faced by OTT-mentees may inhibit the integration of such teachers into school life. It may be that effective tailor-made training cannot be provided for OTTs by mentors whose skills or knowledge are insufficient. Lack of understanding of the cultural diversity of mentees may result, as studies show, in mentors failing to address relevant issues during the mentoring process. This study investigates the experiences of OTTs of mentorship in England, and suggests the importance of mentors having understanding of their culturally diverse OTT mentees. The implications of these findings in the context of recent teacher-training policy developments in England are discussed. Keywords Overseas trained teachers; mentoring

The mentoring of overseas trained teachers

Much research has been undertaken into the value of mentoring for beginning teachers. Less research has been done into the mentoring of Overseas Trained Teachers (OTTs). The studies that have been done suggest that mentors’ lack of cultural knowledge and of the pedagogical challenges faced by OTT-mentees may inhibit the integration of such teachers into school life. It may be that effective tailor-made training cannot be provided for OTTs by mentors whose skills or knowledge are insufficient. Lack of understanding of the cultural diversity of mentees may result, as studies show, in mentors failing to address relevant issues during the mentoring process. This study investigates the experiences of OTTs of mentorship in England, and suggests the importance of mentors having understanding of their culturally diverse OTT mentees. The implications of these findings in the context of recent teacher-training policy developments in England are discussed

Empirical analysis of rough set categorical clustering techniques based on rough purity and value set

Clustering a set of objects into homogeneous groups is a fundamental operation in data mining. Recently, attention has been put on categorical data clustering, where data objects are made up of non-numerical attributes. The implementation of several existing categorical clustering techniques is challenging as some are unable to handle uncertainty and others have stability issues. In the process of dealing with categorical data and handling uncertainty, the rough set theory has become well-established mechanism in a wide variety of applications including databases. The recent techniques such as Information-Theoretic Dependency Roughness (ITDR), Maximum Dependency Attribute (MDA) and Maximum Significance Attribute (MSA) outperformed their predecessor approaches like Bi-Clustering (BC), Total Roughness (TR), Min-Min Roughness (MMR), and standard-deviation roughness (SDR). This work explores the limitations and issues of ITDR, MDA and MSA techniques on data sets where these techniques fails to select or faces difficulty in selecting their best clustering attribute. Accordingly, two alternative techniques named Rough Purity Approach (RPA) and Maximum Value Attribute (MVA) are proposed. The novelty of both proposed approaches is that, the RPA presents a new uncertainty definition based on purity of rough relational data base whereas, the MVA unlike other rough set theory techniques uses the domain knowledge such as value set combined with number of clusters (NoC). To show the significance, mathematical and theoretical basis for proposed approaches, several propositions are illustrated. Moreover, the recent rough categorical techniques like MDA, MSA, ITDR and classical clustering technique like simple K-mean are used for comparison and the results are presented in tabular and graphical forms. For experiments, data sets from previously utilized research cases, a real supply base management (SBM) data set and UCI repository are utilized. The results reveal significant improvement by proposed techniques for categorical clustering in terms of purity (21%), entropy (9%), accuracy (16%), rough accuracy (11%), iterations (99%) and time (93%). vi

Anatomical variations of intra-sphenoid sinus septations in a sample of Kashmiri population: a non-contrast computed tomography study

Background: The sphenoid sinus shows multitude of variations in pneumatization, size and pattern of septations leading to differences in its segmentation. Pre-operative knowledge of their attachment especially to posterolateral bony walls covering vital structures is of utmost importance for a safe trans-sphenoidal approach for various surgical procedures involving skull base. Non-contrast computed tomography (NCCT) with its ability to provide multiplanar reformations (MPR) with sharp algorithms is now a reference standard for visualization of these intra-sphenoid sinus septations preoperatively. The objective of this study was to determine the number and attachment of intra-sphenoid sinus septations in a Kashmiri population sample.Methods: NCCT head images of 591 patients in the age range of 16 to 75 years were analyzed retrospectively. Individuals with age less than 16 years, previous surgery involving skull base/sphenoid sinus, trauma causing hem sinus/fractures around skull base or having space occupying lesions around skull base/sphenoid sinus were excluded from the study. On the CT workstation multi-planar coronal, sagittal and axial reconstructions were performed and subsequently examined.Results: The age range was 16 to 75 years with mean age of 43.56 years of which 453 (76.6%) were males and 138 (23.4%) were females. Single intra-sphenoid septation was the most common anatomic variant in present study (79.7%) being complete in 71.7% and partial or incomplete in 8% of the examined subjects. Double septa were found in 11% inpresent study and more than 2 septae in 3.4%. After sellar attachment (51%) the next most common site of attachment was to the carotid canal (29.5%) (23% to left ICA and 6.5% to the right ICA).Conclusions: Intricate knowledge about sphenoid sinus, its pneumatization and anatomical variations in intra-sphenoid sinus septations and its relationship with the surrounding vital structures is of utmost importance before performing any endoscopic/open surgery involving skull base via trans-sphenoidal approach. The present study shows that a significant percentage of septal attachment to the carotid canal makes main sphenoidal septum as not so reliable landmark for endoscopic procedures as used to be in the pre-imaging era. Thus, preoperative CT is mandatory to avoid injuries to para-sellar neurovascular and glandular structures

Epilepsy in the rural areas of sindh: knowledge, beliefs and practices

Unfounded beliefs regarding epilepsy are still common and widespread. Visits to shrines and seeking help from faith healers goes along with thesebeliefs.This creates a major barrier in the timely diagnosis and treatment of epilepsy. Objective: To determine the knowledge, beliefs and practices relating to epilepsy in the rural areas of Sind and how do they differ between educated and uneducated families of patients with epilepsy. Methods: This was an observational study conducted at the Neurology Out-Patient Department of the Peoples Medical University Hospital Nawabshah during the period 1.1.2015 to 30.6.2015. A pro forma was designed incorporating questions pertaining to knowledge,beliefs and practices regarding epilepsy amongpatients and accompanying family members.Each case was considered as representing the whole family.Educational background was ascertainedand the comparison of study variablesbetween educated and uneducated families was evaluated. The questions were translated into their native spoken language (Sindhi). Results: A total of 120 cases were included in this study. Sixty nine (57.7%)were male and 51 (42.5%) were female. Age ranged from 1 to 55 years. Eighty one (67.5%) were the residents of rural villages and 39(32.5%)were residing in Nawabshah and adjoining towns.Of the 120 cases 80 (66.7%)families were educatedand 40 (33.3%) were uneducated. Majority 76 (63.3%) believed that epilepsy is a disease whereas 44(36.7%) considered epilepsy a “super naturalforce” (‘alamaat’: a native term) or possession by a ‘fakir’ (Jinaat). Of the80 educated families 56 (70.0%) had knowledge about the disease and of the 40 uneducated families 20 (50%) had no knowledge about the disease.Better awareness about the disease among families having educational background was statistically significant (p\u3c0.05). Of the 80 educated families 23 (28.8%) visited shrines and of the 40 uneducated families 26 (65.0%)visited shrines. Uneducated families visiting shrines wasstatistically significant (p\u3c0.01). Families having younger individuals (11 -30 years) were more inclined towards visiting shrines. Out of 120 cases 44 (36.6%) were being treated by faith healers (dagho-phenu: a native term for this kind of practice) and 76 (63.%) were receiving medical therapy. Of the 44 cases receiving faith healing 28 (63.6%)also visited shrines and of the 76 caseswho were receiving medical therapy 21 (27.6%) visited shrines.Followers of faith healing practices significantly visited shrines compared to those who were receiving medical therapy (p\u3c0.001). Those who went for faith healing at first place and did not get benefitout of it came to seek medical therapy. They also pledgedfor the strict complianceand thatin future they will not switch over to “other” forms of therapy. Conclusion: Misperceptions about epilepsy are common in the rural areas of Sindh, Possession by a “supernatural force” (Alamaat) was most common belief among those who did not consider epilepsy a disease.Knowledge about epilepsy was better among families having educational background. Uneducation and unawareness leads to unscientific practices like faith healingand visit to shrines. There iswillingness for receiving medical therapy once the proper guidelines are provi

Investigation of Quantity, Quality and Energy Content of Indigenous Sugarcane Trash in Naoshehro Feroze District, Sindh

Quantity, characteristics, and energy content in sugarcane trash of six different indigenous sugarcane varieties were computed for their possible utilization. Results revealed that the total sugarcane trash weight percentage was 24.0% of the total sugarcane crop. Among all examined varieties, variety 240 produced the highest and the variety HS12 the lowest percentage of sugarcane trash with 28% and 18.6% respectively. Moisture and ash content were found less in brown leaves and more in the tops of sugarcane trash parts. The fixed carbon values in brown leaves, green leaves, and tops of the variety Thatta10 were the highest found, with 18.4%, 15.5%, and 17.3% respectively. Carbon element’s percentage in brown leaves of variety HS12 was the highest with 50.0% and in Thatta10 was the lowest with 43.4%. Highest heating value was found in Thatta10 with 16.0MJ/kg, which is close to the literature reported values

Treatment of Municipal Wastewater Through Horizontal Flow Constructed Wetland

Highly contaminated municipal wastewater is being disposed of into land and rivers without any prior treatment has severe side effects on human and marine animals. This research focused on the treatment of Majeed Keerio village municipal wastewater through horizontal flow constructed wetland system. The experimental study was evaluated and monitored timely over a year. The overall treatment efficiency performance of the wetland system was determined by considering organic pollutants removal efficiency. This study emphasized on the design of horizontal flow constructed wetland for the effective treatment of municipal wastewater of village Majeed Keerio, Sakrand, Sindh. The constructed wetland efficiently reduced COD, BOD5, TSS, turbidity, total phosphate, total nitrogen pollutants of wastewater, which was about 92.3%, 93%, 96%, 96.4% and 74%, respectively. This method reduced all thermotolerant coliforms. Constructed wetland system was found most economical and effective for the treatment of domestic wastewater. The effect of different hydraulic loading rates under varying hydraulic retention times within the constructed wetland was examined. The higher hydraulic retention times resulted in improved pollutants removal efficiency

Flow visualization of a dielectric barrier discharge plasma actuator

The optimum operating conditions of dielectric barrier discharge (DBD) plasma actuators were determined using both the quantitative and qualitative methods. The quantitative study was carried out by estimating DBD discharge power using the theoretical and experimental methods. The theoretical analysis was carried out to find a mathematical model, which describe the discharge power of the DBD actuator. The estimated results from the mathematical model were compared with the experimental values obtained from Lissajous figures. The qualitative analysis was used for the plasma flow visualization. The effects of the DBD design parameters were studied through the images captured using a high speed charge-coupled device camera. Simulation work was done in order to obtain an insight of the electric field responsible for the plasma formation using the commercial computer software. The results revealed that the performance of the DBD plasma actuator was influenced by various design parameters, especially by dielectric thickness and controlled by the input voltage characteristics