bluuebunny/crossref_metadata_2025_split huggingface dataset:
Letramento Digital dos Professores - Novas Alternativas Pedagógicas
Authors: Tomaz da Costa Gonçalves Cássia Patricia 
Published: May 2021

Este plano de empreendimento se propõe a dar um novo formato à Formação em Serviço, levando os professores a refletirem sobre a forma que vêm trabalhando nos últimos tempos, sempre fazendo referência aos resultados alcançados e às metas da escola para os próximos anos. Assim, objetiva-se o desenvolvimento do letramento digital dos docentes de modo que essa formação seja crítica e reflexiva e não meramente técnica. Dessa forma, a partir de um encontro de sensibilização, os professores descobrirão a necessidade de ressignificação da própria prática pedagógica, visando atingir aos alunos do novo século. Através, também, de oficinas quinzenais, os educadores serão imersos em um mundo repleto de recursos que poderão dar maior funcionalidade ao processo ensino-aprendizagem, tornando os alunos sujeitos mais ativos no ato de construir o seu próprio saber, utilizando-se, basicamente, dos recursos tecnológicos, já disponíveis na escola. Para a realização deste empreendimento, o valor solicitado ao Edital Projetos Inovadores em Educação - Fundação Novo Brasil - Educação para o Futuro será de R$ 29.814,30 (vinte e nove mil, oitocentos e quatorze reais e trinta centavos), destinados à aquisição de equipamentos; ao aprimoramento físico de uma sala, a fim de ser utilizada para projeção; à contratação de profissionais especializados para ministrar palestra e oficinas, assim como para suprir despesas correntes e de material de consumo.
Dispersion Determination in VAPEX: Experimental Design, Modelling and Simulation
Authors: Kapadia Ronak A. 
Published: May 2021

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<p>The heavy oil and bitumen reservoirs of Canada are one of the largest hydrocarbon sources in the world. Vapor extraction of heavy oil, or VAPEX, has emerged as a very promising recovery process since its inception in 1991. The principal reason is the environmental friendliness of VAPEX together with its cost-effective nature vis à vis other recovery processes. In this work, a review has been done on various factors affecting VAPEX process. Also, a lab-scale VAPEX experimental setup is designed to determine the dispersion coefficients of solvent gases in heavy oil and bitumen. Further, a mathematical model is developed based on earlier reported rectangular physical model of homogenous porous medium saturated with heavy oil and bitumen. The developed mathematical model is simulated to determine gas dispersion along with solubility during the vapor extraction of live oil from a laboratory scale physical model. At a given temperature and pressure, the block is initially exposed on its side to a solvent gas, which diffuses into the medium and gets absorbed. The absorption of gas reduces the viscosity of heavy oil and bitumen causing it to drain under gravity. The low-viscosity “live oil” is produced at the bottom of the porous block. The production of live oil with time is accompanied by the shrinkage of block as well as its increased exposure to gas from top. These phenomena of VAPEX are described by the mathematical model, which is used to calculate live oil production with various values of gas solubility and dispersion. Their optimal values are determined for the vapor extraction of Cold Lake bitumen with butane by matching the calculated live oil production with its experimental values published earlier.</p>
Formability and Fatigue Behavior of Tailor (Laser) Welded Blanks for Automotive Applications
Authors: Anand Dheeraj 
Published: May 2021

<p>The drive towards weight reduction in the automotive industry has led to the use of tailor welded blanks (TWBs). This work is aimed at evaluating the forming and fatigue behavior of the TWBs with different thickness combinations and compositions. Forming tests were carried out to determine the forming limit diagrams (FLDs) of the TWBs, and compared with those of the individual steel sheets. The results showed that the FLDs of the TWBs lie in-between those of the individually formed steel sheets that comprise the TWBs. A semi-empirical relation based on the mean values of the strain-hardening exponents (n-values) and of the thickness of the base metals was developed to calculate the FLDo of the TWBs. The calculated FLDo values were found to be in good agreement with the experimentally determined values. The fatigue tests showed that TWBs made from zinc coated/galvanized steels exhibited a lower fatigue limit, as compared with the TWB combinations from comparable uncoated steel. This was attributed to the intergranular cracking in the galvanized TWBs, caused by the presence of zinc penetrating beneath the sheet surface.</p>
Regulation of β1 Integrin Traffic and ARF6 Gtpase by Amp-Activated Protein Kinase
Authors: Ata Rehman 
Published: May 2021

Integrins are	cell surface receptors that	physically bridge the extracellular matrix to the cytoskeleton and responsible for adhesion, migration, and signaling. Integrin function is intimately controlled by their membrane traffic. For example, integrins are dynamically internalized from the cell posterior and recycled to the cell anterior during cell migration. Misregulation of integrins is intimately linked with cancer progression, including metastasis and cell proliferation and survival. We have recently uncovered that integrin membrane traffic is controlled by AMP-activated protein kinase (AMPK), an energy stress sensing kinase within cells at becomes activated upon energy stress such as by an increase in cell AMP:ATP ratio. I confirmed that AMPK activation resulted	in a reduction of cell surface β1-integrin. Using assays that selectively measure integrin exocytosis and endocytosis, I found that AMPK activation regulates β1-integrin recycling and possibly endocytosis. I demonstrated that AMPK regulates Arf6 localization, a key protein which regulates β1-integrin membrane traffic. I confirmed that Arf6 and clathrin are involved in reciprocal regulation, thus highlighting the possible pathway for β1-integrin regulation by AMPK.
Documenting Honour: Examining “Honour Killings”and Muslim Representation in Documentary Film
Authors: Phillips Sara Jo L. 
Published: May 2021

<p>Although documentary films offer viewers the chance to learn about the realities and experiences of others cultures, it is also possible for filmmakers to stereotype the people they represent. In this paper, I examine Shelley Saywell’s documentary In the Name of the Family, a film about Muslim youth victims of “honour killings.” I suggest that by framing domestic violence as “honour killings” this film stereotypes and misrepresents Muslim immigrant families. Through an analysis of promotional material and scenes from the film, I argue that the film’s use of Orientalist narratives of difference between Muslim immigrants and mainstream Canadian society contributes to the impression that “honour killings” are cultural and specific to Muslim communities. I further argue that Saywell’s use of the “imperilled Muslim woman” narrative to elicit empathy and compassion from viewers perpetuates the notion that Muslim immigrant families are traditional, oppressive and unwilling to adapt to North American society. </p>
Developing A Collection Policy : Photographic And Digital Archives At The National Library In Chile
Authors: Fuente Soledad A. 
Published: May 2021

<p>The purpose of this thesis is to propose a model for a collections policy for the Photographic and Digital Archives of the National Library in Chile. The current policy is in its early stages of development and the institution has a large interest in its implementation. The main focus of this research is collections policies, as a form of generating best practice in the field, and a vehicle to implement institutional mission, vision, and objectives from a theoretical and practical perspective. </p>
Non linear estimation of returns on hedge funds with scarce observations
Authors: Samarikhalaj Akram 
Published: May 2021

<p>Explaining the behavior of a financial portfolio like a Hedge Fund is challenging for many reasons, one of those reasons is scarce observations. One possibility to circumvent these issues is to find simple relationships between the portfolio and financial factors. These factors are observed more frequently so it is valid to assume that one can estimate not only the conditional expectation with respect to single factors, but also the joint law of all the underlying factors. The problem, then, is to recover the conditional expectation of the portfolio’s return given all the factors.The author of the paper,”Measuring Risk With Scarce Observation” prescribes a reasonable criteria which provides existence and uniqueness to this problem also characterizes the solution under the assumption of Gaussian distribution among the factors (Independent factors). In our thesis, we present a solution for the casewhen the joint law of factors is a multivariate t-student distribution. </p>
"This is my life" : questions of agency and belonging among youth living with less than full status
Authors: Young Julie 
Published: May 2021

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<p>This paper presents insights from six youth ages 12-18 living with less than full status (LTFS) in Toronto with their families. The various immigration statuses of the participants highlighted the multiple ways in which an individual can be living with LTFS in Canada, in the sense of experiencing limitations to both their access to services and their agency. The youth lacked a certain degree of awareness of the extent to which their uncertain status mediated their experiences, which in some cases resulted from their parents protecting them from knowledge of the family’s situation. Despite the uncertainty of their status, the youth were able to develop and sustain a network of support persons both within and outside of Canada. IN addition, their participation in the academic and social aspects of school was a significant element in their lives particularly in terms of feeling a sense of belonging. At the same time, they were aware that the uncertainty of their status limits their agency. The project raises important questions for further research regarding families’ communication strategies around immigration status and how youth understand and confront their status, as well as to what extent the education system understands the challenges faced by youth living with LTFS.</p>
The Influence of Climate and Land Cover Change on Historical Brook Trout (Salvelinus Fontinalis) Populations in the Humber River, Rouge River, and Duffins Creek Watersheds
Authors: Maher Annette Cynthia 
Published: May 2021

<p>Long-term records of the abundance of organisms are neededto detect more progressive changes in their populations as a result of external stressors. Long-term changes in historical Brook Trout (Salvelinus fontinalis) population abundance were identified in the Humber River, Rouge River and Duffins Creek watershedsin Ontariothrough statistical analysis of twenty-six years of sampling records. Corresponding historical changes in air and stream water temperature, and in land cover were also examined. Changes detected in climate parameters, and in land cover were then related to Brook Trout population changes. Results revealed that Brook Trout abundance had decreased significantly. These changes were driven by populations in the Humber and Rouge River watersheds. Populations in the Duffins Creek watershed did not change significantly. Climate parameters didchangebut notsignificantly over timein the region. However, land cover changes wereobserved. In the short term, Brook Trout population changes were more likely due to changes in land cover than climate.</p>
Method for Predicting Damage Sustained by Air-Backed Plates Subjected to Impulsive Loading From Supersonic Torpedo Shock Wave
Authors: Mejia Nicholas 
Published: May 2021

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<p>A method is presented to estimate the severity of damage on an air-backed plate caused by the shock wave of a passing supersonic underwater torpedo. Theory of compressible liquid flows is used to calculate the pre- to post-shock density ratio and peak shock pressure of the torpedo. A Newtonian impact theory approach is then employed to obtain the shock standoff distance to the torpedo. Utilizing the density ratio, peak shock pressure, and standoff distance, a novel method for predicting the damage sustained by the plate from the shock wave is presented by equating the peak shock pressure and standoff of a torpedo to that of an underwater detonation of TNT. Well known theory for the effects of shock waves generated by TNT detonation is then used to determine the shock factor, damage number, and deflection-thickness ratio. Using these parameters, a sample design change to a steel plate is provided to reduce the shock factor to a negligible value for a case of Mach 1.4 torpedo at 7.5 body radii distance. The herein-presented process offers insight into how to improve naval ship hull design to prevent lethal damage from shock effects.</p>
Theoretical and Experimental Study of Single-Needle Thermal Conductivity Probe
Authors: Dang Lam 
Published: May 2021

<p>The thermal conductivities of materials (k<sub>m</sub>) are important in many fields such as agriculture, mining and biomedical engineering. For example, better knowing the k<sub>m</sub> values of biomaterials can be useful in radiofrequency ablation (RFA) to treat and/or cure tumor and cancer cells (Liu <em>et al</em>. [3]). Thermal conductivity probes (TCPs) have proven to be very attractive in obtaining relatively accurate k<sub>m</sub> values due to their inline measurements, inexpensiveness, portability, and versatility. </p>
<p>However, due to the vast number of designs and applications of TCPs, sources of errors with using the probes are diverse. As a result, in this thesis, possible sources of errors in TCPs (single needle) were investigated. The sources include probe sizes, heating powers, sampling media, selection of TCP materials, location of the thermocouple, axial heat conduction, thermal contact resistance, initiating time t<sub>0</sub>, decision to use heating or cooling period for km calculations and tolerance in the thermal properties of epoxy.</p>
Importance of Laparoscopy to Solve the Diagnostic Dilemma of Abdominal Tuberculosis
Authors: Islam Md Saiful , Rahman Md Masudar , Faisal M Fardil Hossain , Pramanik Md Alamgir Jalil , Rouf Muhammad Abdur 
Published: May 2021

Background: Diagnosis of abdominal tuberculosis as well as histopathological confirmation is difficult because of suboptimal access to the intraperitoneal pathology. Laparoscopy provides minimally invasive access to the peritoneal cavity and materials can be collected for confirmation of diagnosis.
Objectives: To study the importance of laparoscopy as a tool for the diagnosis of abdominal tuberculosis and initiation of appropriate treatment without delay.
Materials & Methods: In this study 25 patients with suspected abdominal tuberculosis were selected within the period of May, 2014 to October, 2014. Diagnostic laparoscopy performed on all patients with biopsy of tissue from accessible sites.
Results: Diagnostic laparoscopy with biopsy confirmed the diagnosis in 24 (96%) patients, 23 of these patients (96%) had nodules at different site of abdominal cavity and 19 of these patients (76%) had ascites. In two cases there were nodules over liver surface; biopsy was taken also from both liver nodules. One nodule revealed fibrosis and another nodule revealed tuberculosis.
Conclusion: Imaging and culture of ascitic fluid may fail to confirm or exclude abdominal tuberculosis in clinically suspected cases. Laparoscopy with peritoneal tissue biopsy provided rapid and correct diagnosis of abdominal tuberculosis and should be performed early in suspected cases.
KYAMC Journal.2021;12(01): 14-17
Effectiveness of Pre-Operative Subcutaneous Infiltration of Ketamine for Post-Operative Analgesia and Haemodynamic Attenuation
Authors: Rahman Md Pervez , Anam ABM Shafiul , Islam Md Rafiqul , Hossain Md Miraj , Rahman Md Muzibur , Khatun Rahena 
Published: May 2021

Background: Ketamine is a noncompetitive antagonist of N-methyl-D-aspartate (NMDA) receptor which plays an important role in pain modulation. It decreases acute postoperative pain by inhibiting C fiber activity.
Objective: Purpose of this study was to evaluate the effectiveness of preoperative subcutaneous infiltration of ketamine for postoperative analgesia and haemodynamic attenuation.
Materials and Methods: This Randomized controlled trial study was conducted among the patients with ASA (Ameracin Society of Anaesthesiologist) grade I & II, planned for major abdominal surgery with upper midline incision. Total 60 patients were selected and allocated into two groups, 30 in each- group A & B. Group A - Patients received subcuteneous wound infiltration with ketamine. Group B - Patients given subcuteneous wound infiltration with bupivacaine. Then haemodynamic status and patient outcome was assessed at different point of time.
Results: There was no significant difference between groups in respect of demographic and ASA status. Mean age was found to 38.7±8.53 years. In Group A, 63.3% were ASA I and 36.7% were ASA II. In Group B, 60% were ASA I and 40% were ASA II. It has become evident that satisfactory analgesia can be acheived by subcuteneous wound infiltration with ketamine (in Group-A).The Mean verbal pain score was 5.2±0.47 and 7.4±0.68 in group A & group B respectively. The difference was statistically significant (p<0.05). After 2hrs, mean sedation was found 4.38±0.57 score in group A, but in group B score is reduced and found 3.52±0.27. Mean difference was statistically significant (p<0.05) between two groups.
Conclusion: Surgical site infiltration of ketamine is a promising analgesic method in reduction of postoperative pain with minimal sedation and adverse effects. There was significantly prolonged duration of analgesia and better outcome.
KYAMC Journal.2021;12(1): 26-31
Development of Antibiotic Resistance, Suggestion For The Safety of Our Future Generation
Authors: Mallik Ashraf Uddin , Rahman Md Mostafizur , Razzaque Md Abdur , Karmaker Uttam , Samad Abdus , Nasrin Jannate Sultana , Saha Simanta , Saha Simanta , Begum Rokeya 
Published: May 2021

Background: Rising of multidrug resistance among uropathogenic bacteria is leading our future generation to a crisis. Nevertheless, the era of antibiotic failure due to bacterial resistance has brought interest to other medical science like Traditional Medicine, alternative medicine.
Objectives: This study was undertaken to determine the current antibiotic resistance situation among common bacterial uropathogens and suggesting prevention measure.
Materials and Methods: A total of 212 patients male 132,female 80 selected. Mid-urine samples were collected. Isolated organisms were identified by conventional methods. Then different antibiotics representing different families of antibiotics were tested on isolated organisms.
Results: The most frequently isolated gram negative bacteria was E.Coli (92%) followed by Staphylococcus(7.07%),Klebsiella(7%), Pseudomonas(4.25%). Resistance to Amoxicilline, Ciprofloxacin, Cefixim, Ceftriaxone, Cefuroxim, Cefradin, Cefotaxim was more than 70% of all isolates of E.Coli stains. There was relatively low resistance rate to Nitrofurantoin, Gentamycin,Imipenem, Meropenem, Amikacin, Ceftazidim . However, there was emerging resistance to Ciprofloxacin, specially for common bacteria.
Conclusion: It is urgent need to make a policy for antibiotics use . We suggest all health care professional of traditional medicine and modern medicine to combat against antibiotics resistance.
KYAMC Journal.2021;12(1): 32-35
Association between Thyroid Function and Gall Stone Disease
Authors: Reza Md Nahid , Faisal M Fardil Hossain , Noor Tahmina , Mahmud Riaz , Miah Monsur , Siddique Ibrahim , Khan Md Manir Hossain 
Published: May 2021

Background: There was a long term perception that gall stone disease may have a hidden association to alteration of thyroid function.
Objective: To find out the association between thyroid function status in gall stone disease.
Materials and Methods: This case control study was conducted in department of Surgery, Bangabandhu Sheikh Mujib Medical University Hospital from July 2017 to June 2018. This study recruited 152 gall stone patients diagnosed with Ultrasonography (USG). The control group underwent USG to exclude any asymptomatic cholelithiasis. Fasting blood samples were taken from all participants for measurements of Fasting Blood Sugar (FBS), serum free thyroxine (FT4), serum thyroid stimulating hormone (TSH), total cholesterol, low-density lipoprotein (LDL), and high-density lipoprotein (HDL).
Results: The mean serum TSH levels among cases (3.56±4.6) was higher than controls (2.46±1.68) (p<0.05). Subclinical hypothyroidism was noted in 11.8% of cases and all were found female and 3.8% of controls, whereas hypothyroidism was detected in 3 (3.8%) controls and 22 (14.5%) cases. The mean total cholesterol levels in cases was much higher than in controls, and was significant (p<0.05).
Conclusion: Hypothyroidism has a significant role on development of gall stone disease with increasing age especially in female.
KYAMC Journal.2021;12(1): 36-40
Pattern of Musculoskeletal Disorders among Diabetic Patients Attending The Department of Physical Medicine and Rehabilitation in a Tertiary Care Hospital
Authors: Al Mahmud Ferdousur Rahman , Mandal Muhammad Alamgir , Rahman AKM Masudur , Khatun Mst Shamina , Rahman Mohammad Azizur 
Published: May 2021

Background: Disorders of musculo-skeletal (MSK) system are very common scenario watched in diabetic patients and is a major cause of morbidity, mortality and hospitalization.
Objective: The present study to see the pattern of MSK disorders among the Bangladeshi diabetic patients.
Materials & Methods: This is a cross-sectional study carried out at the department of Physical Medicine and Rehabilitation in Thengamara Mohila Sabuj Sangha (TMSS) Medical College Hospital, Bogura for the period of one year from February 2019 to January 2020. A total of 450 diabetic patients with MSK disorders were included in this study.
Results: A total of 450 patients with MSK disorders were studied. Out of them 208 (46%) were males and 242(54%) were females.31.5% were between the age group of 41-50 years and 28.9% was between 51-60years.Majority were housewives (51.2%) followed by cultivator(16.2%).Degenerative joint diseases were more common (31.4%) than inflammatory arthropathies (19.3%).Lumbar and cervical spondylosis constituted about 31.4% of all disorders& 22.7% presented with OA knee whereas 15.6% presented with rheumatoid arthritis.
Conclusion: Degenerative disorders of the MSK system are more common than the inflammatory ones amongst the diabetics.Maximum patients were having OA of knee, lumbar spondylosisand soft tissue rheumatism.
KYAMC Journal.2021;12(1): 41-43