Classroom questioning is one of the commonly used teaching methods in university mathematics teaching, but many questions have problems such as single format, low student participation, and unreasonable arrangement of the difficulty of the questions. This paper studies the current situation and problems of questioning in the college mathematics classroom. This paper studies the current situation and problems of questioning in the college mathematics classroom. Through the exploration and analysis of the actual classroom phenomenon, this paper gives the improvement measures to improve the effective questioning in the college mathematics classroom, and provides theoretical reflection and practical help for the overall improvement of college classroom teaching level.

This paper aims to analyse Helon Habila’s Oil on Water through the framework of literary pragmatics which deals with the production and interpretation of texts. In order to highlight the inner thoughts and feelings of the writer through the utterances of his characters, the article focuses on the different types of voice in the novel. The corpus under study has been sampled purposively and studied through a qualitative approach. The analyses reveal that categories of voices such as voice mash, voice trash and voice crash are used to project the views of the author, including his perceptions, feelings and beliefs. The study concludes that these linguistic items have made it easy to understand Habila’s perspectives in his literary artifact.

Isolation of fungal species from unused toilet papers is essential, to decipher the public health risk associated with the exposure of these sanitary papers in public toilets, prior to use by students. Unused tissue papers kept at public toilets were sampled from eleven (11) different locations (labelled F1-F11) to cover the various faculties in the University. The fungal counts and characterisation was done following standard microbiological procedures. The result revealed that Total Fungal Count ranged between 3.5±0.4 x 104 cfu/g, (obtained from the Faculty of Humanity toilet rooms) and 1.3±0.2 x 104 cfu/g, obtained from Faculty of Engineering toilet rooms. Phenotypic characterisation of the fungal isolates revealed the isolates obtained from the various samples included; Aspergillus niger, Aspergillus fumigatus, Aspergillus flavus, Candida species and Penicillium species. The percentage occurrence of the isolates showed Aspergillus niger as the dominant species (38%), while Candida species was the least occurring (17.2%). The study has shown that exposure of unused tissue papers, prior to use in toilets may pose severe health risk to the students. Tissue papers should therefore be kept in sterile packs prior to use in public toilets.

From centuries, many incidents happened in the ocean shipping that have mostly condemn the water sear with harmful substances that pollute the marine fauna. And with the coming evolution into the ships size, the challenges that concern the Marpol contamination is constantly increasing. Conventions and legislations in that concern have put many actions for that issue, in order to stop disease of ocean ecology and maintain its sustainability. This paper seeks to review the topic of Sustainable development and its impact on the different phases of moving the Classic logistics into the green logistics within the maritime industry.

Operational cost efficiency in each building in this case multi-storey buildings for offices is highly considered by the building manager. The main equipment used and incur considerable operational costs one of them is an air system or AC system device. In this writing will be explained the comparison of the efficiency of the use of cooled chiller type air with air cooled VRF (Variable Refrigerant Flow) both in terms of service.

Background: Vision is the primary means of integration between individual and external environment. Childhood visual impairment due to refractive errors is a significant problem in school children. School children constitute a special group as uncorrected refractive errors cause a vulnerable impact on student routine school work, physical, mental, behavioral development as well as day to day activities. This warrants early detection and treatment to prevent permanent disability. Objectives: To study the prevalence of refractive errors in secondary school children and to associate factors affecting reduced vision in school children. Method: A cross-sectional study was conducted on school children of a Zilla Parishad High School. Visual acuity test was performed using Snellen’s E Chart and, subjects with VA≤6/9 were examined for refractive error by an optometrist using a trial lens set. A Pretested questionnaire was administered. Parental consent was obtained and assent was taken before the examination, children whose parents did not give consent were excluded. A total of 314 students participated. Data were entered in Microsoft excel sheet and analyzed using SPSS version 21. Results were expressed as proportions for different study variables. Results: Out of 314 students, the majority 161(51.27%) of study participants were girls. The highest number of students (68%) was between 14-15yrs. Among 314 students examined, 40 (12.74%) students were suffering from refractive errors, myopia being the commonest (10.2%), Astigmatism-affected in 8 (2.54%) children. Most of the students (60.5%) were in the lower middle socio-economic class. The percentage of the population with 2-4hrs/day screen exposure duration is 42.35%. But there is no statistical significance of reduced vision was observed with taken study variables, considering a p-value<0.05 was taken as a significant association. Conclusions: The prevalence of refractive errors was 12.74% in this study. Children should be educated regarding ocular hygiene, early correction of refractive errors, limited screen time. Recommended planning appropriate eye care programmes to reduce the burden of visual impairment among the younger population.

Introduction: Development of pulmonary artery hypertension (PAH) worsens prognosis of systemic sclerosis (SSc) and can be either isolated precapillary PAH or secondary to interstitial lung disease (ILD). Early diagnosis is of crucial importance. There is scarcity of data on PAH in patients with SSc in Bangladesh. Objectives: To determine the Prevalence and clinical correlates of pulmonary hypertension in systemic sclerosis. Materials and Methods: The concerned non randomized cross-sectional observational study was conducted at department of Medicine, Bangabandhu Sheikh Mujib Medical University (BSMMU) Dhaka, Bangladesh. Clinical and functional characteristics of 100 patients of systemic sclerosis were studied and they were evaluated by echocardiography to detect pulmonary artery hypertension. Our objective was to study the prevalence and the clinical correlation of PAH in SSc. Results: PAH was found in 29% patients on echocardiography. Prevalence tend to increase with age of onset and duration of disease. However, it did not differ significantly between patients with limited cutaneous SSc (lcSSc) and patients with diffuse cutaneous SSc (dcSSc). On binary logistic regression analysis, none of the studied variables had any independent influence on development of PAH. Conclusion: PAH in SSc occurs in a remarkable proportion (29%) of patients without any ominous signs in early stages. Non-invasive screening of patients with SSc for PAH will help in early diagnosis and appropriate timely therapeutic intervention before significant end-organ damage occurs.

The analysis of Lead (Pb), Iron (Fe), Chromium(Cr) and PH in walnuts were carried out in four different locations which includes Rumueme, Eliozu/Air Force, Oil mill and Aba road, the lead, iron and Chromium concentrations were analysed using atomic absorption spectrophotometer. (AAS) while the PH of the samples were analysed using a ph meter . the results obtained showed wide variations of concentrations of heavy metals present in these different locations as shown in tables 4.1, 4.2,4.3 and 4.4, the level of lead in the four different locations were high compared to the World Health Organisation’s recommendation which is about 0.005mg, this was actually attributed to the industrial activities taking place in these areas, and this may result to some health risks like cancer, asthma, hypertention,etc if the walnuts sold in these areas are excessively consumed, however, the PH result obtained for the four different locations were 6.20,6.50.5..30 and 6.40 respectively, this revealed that the cooked walnuts are quite acidic and may be due to the sources of water and other environmental factors.

Protein is a major potential source of raw materials for new drugs. In this study, protein isolation of the red algae, Eucheuma cottonii was performed using a polar solvent (0.1 M Tris-HCl buffer). Purification of protein used fractionation method with ammonium sulfate, and then the last step of the isolation process performed protein dialysis. Determination of protein content was done using the Lowry method. Antibacterial activity test used agar diffusion method while for screening anticancer activity used the Brine Shrimp Lethality Test (BSLT) method. Anticancer effectiveness carried out against HeLa cancer cells. The results of antibacterial and BSLT tests on protein fractions F1 (0-20%) and F2 (20-40%) showed that these fractions were potential as anticancer agents, However, the test results of both fractions against HeLa cancer cells showed only the F2 protein fraction (20-40% fraction) was active in inhibiting the growth of HeLa cell cancer in the moderate category. The SDS PAGE electrophoresis test showed that the F2 protein fraction had a molecular weight of 26,76 kDa.

Ezrin, podocalyxin and paxillin are cytoskeleton-associated proteins, implicated in several malignancies, but their role in Urothelial carcinoma of the bladder (UCB) is still controversy. We investigated the expression of those markersin UCB and the association of their expression pattern with clinicopathological parameters.Quantitative rt-PCR analyses used to examine mRNA level of ezrin and paxillinin23 fresh specimens of UCB and adjacent normal mucosal tissues from patients undergoing cystoscopy.Also, immunohistochemical evaluation of ezrin, podocalyxin and paxillin was performed on 123 paraffin blocks of UCB. Ezrin mRNA levelwas significantly high in normal mucosa than in UCB (p=0.012) while paxillinmRNA level wasn'tsignificant (p=0.34). Significant negative correlation was found between membranous ezrin immunoexpression and prognostic parameters as grade,T-stage and recurrence(p=0.001, p<0.0001and p= 0.002 respectively). Regarding paxillin immunoexpression,significant negative correlation was detected with grade andT-stage (p<0.0001). Membranous expression of podocalyxin was significantly correlated with grade, T-stage and recurrence (p=0.016, p= 0.003 and p<0.0001respectively). A significant correlation was found between three markers.These results suggest that ezrin, podocalyxin and paxillin could be valuable prognostic molecules in evaluation of UCB and this might lead to establishment ofnew molecular therapeutic strategy and prognostic biomarkers in UCB.

Background: The effects of maxillary expansion depends on age and skeletal maturation of an individual. The review aims to identify the different parameters that can affect the amount of dental and skeletal effects achieved with expansion. Objective: Current literature regarding expansion techniques and the factors responsible for higher success rates were identified. The findings were evaluated and presented in a systematic manner. Results: There is a difference in the amount of skeletal effects of maxillary expansion in individuals with mineralized palatal suture. Conclusion: Bone-anchored maxillary expansion of mini implant supported palatal expansion (MARPE) can be useful in older individuals to achieve higher skeletal expansion and opening of mid palatal suture.

This research is normative juridical with descriptive analytical and qualitative approach, focusing on the main problem of how the role of Islamic boarding schools in the development of Islamic economics in the South Sulawesi region. Sharia economic discipline or fiqh muamalah is an original concept sourced from the Qur'an and Sunnah since the 7th century (Apostolate of Muhammad, 570-632 AD) contains Islamic teachings related to property, business or business, is the result of the ijtihad of the mujtahids related to laws or regulations. Humans in interacting with fellow humans, objects, and managing the contents of the universe based on the texts (Al-Quran and Assunnah). The results of the study indicate that the role of Islamic boarding schools in developing the Islamic economy has been substantively carried out for a long time and continuously in an integrated manner in the subject matter of fiqh muamalah at the Aliyah level, which is supported by learning documents such as textbooks and fiqh muamalah modules. The caregivers of muamalah fiqh subjects are not familiar with the term Sharia economics which is popular outside Islamic boarding schools, because the term is not found in the original fiqh books, which lasim is fiqh muamalah or muamalah iqtishadiyyah. In particular, the Islamic economic development policy at Islamic boarding schools has not been found in the vision and mission of Islamic boarding schools, but substantially it has been conducted for a long time through muamalah fiqh lessons, even coupled with mu'tabarah fiqh book halaqah activities outside formal learning hours.

Among the many contributions of Professor Rasidi Akinade Salawu to nursing profession in Nigeria, is his introduction into nursing of a model about the prevailing administrative and managerial environment in nursing. Although not formally documented all these years, many nurse managers, his colleagues as well as students (like us) who have encountered him have informally experienced and applied the tenets of this model in their day-to-day running of their wards and units. Drawing from Management and Nursing Science philosophies, Rasidi Akinade Salawu developed the Vice Syndrome Theory which has led to a better understanding of the intrigues and patterns in the working relationships between heads of units/departments/organisations and their deputies within the nursing circles. This presentation aims at sensitising the nursing (and general) scientific world to increase the awareness of this model, and increase its acceptance as an explanation for administrative processes and its application in a variety of research settings. This model has a great potential to make nursing administration more robust with sound scientific explanation. It will be an alternative paradigm for describing, explaining and predicting and therefore control issues of leader-deputy (“boss-vice”) engagements.

The problem in this study is to find weaknesses in Corporate Social Responsibility in Realizing Sustainable Development that is not valued with Justice and how to reconstruct it based on the values of justice. The approach method used in this study is qualitative research, with a sociological juridical approach, and analyzed using descriptive analysis. The conclusion of this study is the weakness of the construction of Article 74 of Law Number 40 of 2007 concerning Limited Liability Companies from the aspect of legal substance, legal structure, and legal culture has implications for the value of justice which cannot be realized in carrying out corporate social responsibility in realizing sustainable development in the form of CSR. Because of that Article, 74 of Law Number 40 of 2007 concerning Limited Liability Companies must be reconstructed so that Corporate Social Responsibility Values Justice which is appropriate and in line with the values of Pancasila justice.

Several procedures, methods, and techniques aiming at generating higher quality foodstuffs with minimal sensory and nutritive qualities have been developed and adapted over the past several decades. Pasteurization is a heat treatment procedure that kills harmful micro-organisms in foods and drinks. Pasteurized juices have been warmed to great temperatures for limited period of time to destroy any germs or bacteria which may still present. Double-pasteurization, that contains a subordinate heating procedure, can increase the shelf-life by killing the spores which have developed. Drying is indeed a natural method of prevent spoiling because most of the disease-causing microorganisms needed a humid environment to exist and grow. Chemical and physical methods of preserving food are used to destroy or hinder the development of germs. Modified atmosphere packaging, different conditions dehydration, controlled atmospheric storage, freezing, refrigeration, vacuum- packing, different forms of thermal treatment, ultraviolet-radiation, ionizing radiation, and extreme hydrostatic pressure are all physical ways of preserving food. canning heat methods are meant to eliminate the spores of a bacteria C. botulinum.