The Challenges of Internationalization from Foreign and Local Students' Perspectives: The Case of Management School

Yasar Kondakci 서울대학교 교육연구소 2008 Asia Pacific Education Review Vol.9 No.4

The Purpose of this qualitative case study is to discern the issues pertaining to different dimensions of internationalization from the perspectives of both foreign and local students. Semi-structured interviews were conducted with 22 foreign, and 13 local students. The results show that there is a dissonance between policy makers and implementers, and the students themselves on "what a truly international higher education organization" in fact is. Moreover, the results suggest that asymmetrical aims of local and foreign students endanger fulfillment of the academic, social, and Cultural rationales behind internationalization. Fulfilling the rationales of internationalization depends not only the adaptability of foreign students to local conditions but also on the priorities, choices and level of commitment of local Students, administrative staff, and faculty members to the imperatives of internationalization.

The association of reproductive hormones, thyroid function, and vitamin levels with premature ejaculation: A prospective case-control study

Yasar Pazır,Haydar Guler,Taha Burak Bulut,Emre Ari,Semih Aktas,Mustafa Kadıhasanoglu 대한비뇨의학회 2024 Investigative and Clinical Urology Vol.65 No.2

Purpose: To investigate whether serum hormone (testosterone, prolactin, gonadotropins, and thyroid hormones) and vitamin (vitamin B12, folic acid, and vitamin D) levels are associated with premature ejaculation (PE). Materials and Methods: This prospective case-control study included 126 patients with PE (lifelong PE [LPE] in 94 and acquired PE [APE] in 32) who presented to the urology outpatient clinic between April 2016 and January 2023 and 92 healthy men as a control group. The diagnosis of PE was based on the criteria defined by the International Society for Sexual Medicine. Serum total testosterone (TT), free and bioavailable testosterone, follicle-stimulating hormone, luteinizing hormone, prolactin, thyroid-stimulating hormone, free triiodothyronine, thyroxine (fT4), vitamin B12, folic acid, and vitamin D levels were measured. Results: Serum TT, fT4, and vitamin D levels were significantly higher in patients with PE than in the control group (p=0.022, p=0.002, and p=0.044, respectively). However, the serum vitamin B12 level was significantly lower in the PE group (p=0.021). In the multivariate logistic regression analysis, only vitamin B12 was found to be an independent risk factor for PE, with an estimated odds ratio of 0.997 (95% confidence interval 0.994–0.999, p=0.036). Conclusions: This study demonstrated that lower vitamin B12 levels are associated with the presence of PE. Therefore, we believe that it would be beneficial to consider vitamin B12 levels in the evaluation of patients with PE.

Impaired Gallbladder Motility and Increased Gallbladder Wall Thickness in Patients with Nonalcoholic Fatty Liver Disease

( Yasar Colak ),( Gulcin Bozbey ),( Tolga Erim ),( Ozge Telci Caklili ),( Celal Ulasoglu ),( Ebubekir Senates ),( Hasan Huseyin Mutlu ),( Banu Mesci ),( Mehmet Sait Dogan ),( Guralp Tasan ),( Feruze Y 대한소화기기능성질환·운동학회(구 대한소화관운동학회) 2016 Journal of Neurogastroenterology and Motility (JNM Vol.22 No.3

Background/Aims Nonalcoholic fatty liver disease (NAFLD) is currently the most common chronic liver disease worldwide. Along with the increase in the incidence of NAFLD and associated obesity, an increase in gallbladder disease (GD) has been noted. This has led to the identification of a new disease entity called fatty GD. There is a gap in the literature on the dynamics of gallbladder function in patients with NAFLD. Methods An observational case-control study, a total of 50 patients with biopsy proven NAFLD without gallbladder stone/sludge and 38 healthy comparison subjects were enrolled. Fasting, postprandial gallbladder volumes (PGV), gallbladder ejection fraction (GEF), and fasting gallbladder wall thickness (FGWT) were measured by real-time 2-dimensional ultrasonography. Results Fasting gallbladder wall thickness, fasting gallbladder volumes and PGV were significantly higher in patients with NAFLD than control subjects (P < 0.001, P = 0.006, and P < 0.001, respectively). Gallbladder ejection fraction was significantly lower in the NAFLD group than the controls (P = 0.008). The presence of NAFLD was an independent predictor for GEF, PGV, and FGWT. Also, steatosis grade was an independent predictor for GEF, and GEF was significantly lower in the nonalcoholic steatohepatitis (NASH) subgroup than the controls. Conclusions Gallbladder dysfunction and increase in gallbladder wall thickness exists in asymptomatic (without stone/sludge and related symptoms) patients with NAFLD and are useful in identifying fatty GD. Measurement of these variables in NAFLD patients may be useful in identifying those at higher risk for GD. (J Neurogastroenterol Motil 2016;22:470-476)

Ideal cell-decompositions for a hyperbolic surface and Euler characteristic

Yasar Sozen 대한수학회 2008 대한수학회지 Vol.45 No.4

In this article, we constructively prove that on a surface S with genus g ≥ 2, there exit maximal geodesic laminations with 7g - 7,..., 9g - 9 leaves. Thus, S can have ideal cell-decompositions (i.e., S can be (ideally) triangulated by maximal geodesic laminations) with 7g - 7,..., 9g - 9 (ideal) 1-cells. Once there is a triangulation for a compact surface, the Euler characteristic for the surface can be calculated as the alternating sum F - E+V, where F,E, and V denote the number of faces, edges, and vertices, respectively. We also prove that the same formula holds for the ideal celldecompositions. In this article, we constructively prove that on a surface S with genus g ≥ 2, there exit maximal geodesic laminations with 7g - 7,..., 9g - 9 leaves. Thus, S can have ideal cell-decompositions (i.e., S can be (ideally) triangulated by maximal geodesic laminations) with 7g - 7,..., 9g - 9 (ideal) 1-cells. Once there is a triangulation for a compact surface, the Euler characteristic for the surface can be calculated as the alternating sum F - E+V, where F,E, and V denote the number of faces, edges, and vertices, respectively. We also prove that the same formula holds for the ideal celldecompositions.

Foliar Application of Growth Bioregulators Influences Floral Traits, Cormassociated Traits and Chemical Constituents in Gladiolus grandiflorus L.

Yasar Sajjad,Muhammad Jafar Jaskani,Muhammad Qasim,Gulzar Akhtar,Asim Mehmood 한국원예학회 2015 원예과학기술지 Vol.33 No.6

Gladiolus is one of the most popular cut flowers in the world floral market and is highly attractive to consumers. The production of poor-quality gladiolus spikes is one of the most important hurdles to obtaining high prices for this crop. The main objectives of this study were to improve the quantitative characteristics of gladiolus spikes, to increase propagule production and to enhance chemical constituent levels in leaves to help improve plant growth. We performed foliar application of bioregulators, including polyamines (putrescine and spermine) and vitamins (ascorbic acid and thiamine), at different concentrations (0, 0.1, 0.4, 0.7 and 1 mM) to gladiolus plants at the three leaf, five leaf and slipping stages. Application of 1 mM putrescine was the most effective treatment, with prominent effects on economically important spike traits including spike length (55.53 ㎝), spike diameter (7.53 ㎜), florets per spike (13.99), first floret diameter (9.66 ㎝) and first floret weight (4.90 g), followed by spermine treatment. The 1 mM putrescine treatment also had positive effects on corm-associated traits including corm diameter and corm weight, with values of 4.57 ㎝ and 26.16 g compared to 3.47 ㎝ and 17.16 g in control plants, respectively. The contents of chemical constituents in leaves, including total chlorophylls (8.06 ㎎·g<SUP>-1</SUP>), total carotenoids (1.66 ㎎·g<SUP>-1</SUP>), total soluble sugars (4.75 ㎎·g<SUP>-1</SUP>) and phenolics (0.89 ㎎·g<SUP>-1</SUP>) increased in response to foliar application of 1 mM putrescine compared to the control. Ascorbic acid and thiamine also had positive effects on various plant morphological traits and chemical constituents in leaves compared to control plants, but the growth-promoting effects of polyamines were more pronounced. Hence, applying polyamines to gladiolus leaves will help improve spike production and increasing propagule (cormel) yields.

Poster Session : Structural characterizations of RGS11

( Yasar Saleem ),( Key Sun Kim ) 한국생화학분자생물학회 (구 한국생화학회) 2006 생화학분자생물학회 춘계학술발표논문집 Vol.2006 No.-

Foliar Application of Growth Bioregulators Influences Floral Traits, Cormassociated Traits and Chemical Constituents in Gladiolus grandiflorus L.

Sajjad, Yasar,Jaskani, Muhammad Jafar,Qasim, Muhammad,Akhtar, Gulzar,Mehmood, Asim Korean Society of Horticultural Science 2015 원예과학기술지 Vol.33 No.6

Gladiolus is one of the most popular cut flowers in the world floral market and is highly attractive to consumers. The production of poor-quality gladiolus spikes is one of the most important hurdles to obtaining high prices for this crop. The main objectives of this study were to improve the quantitative characteristics of gladiolus spikes, to increase propagule production and to enhance chemical constituent levels in leaves to help improve plant growth. We performed foliar application of bioregulators, including polyamines (putrescine and spermine) and vitamins (ascorbic acid and thiamine), at different concentrations (0, 0.1, 0.4, 0.7 and 1 mM) to gladiolus plants at the three leaf, five leaf and slipping stages. Application of 1 mM putrescine was the most effective treatment, with prominent effects on economically important spike traits including spike length (55.53 cm), spike diameter (7.53 mm), florets per spike (13.99), first floret diameter (9.66 cm) and first floret weight (4.90 g), followed by spermine treatment. The 1 mM putrescine treatment also had positive effects on corm-associated traits including corm diameter and corm weight, with values of 4.57 cm and 26.16 g compared to 3.47 cm and 17.16 g in control plants, respectively. The contents of chemical constituents in leaves, including total chlorophylls ($8.06mg{\cdot}g^{-1}$), total carotenoids ($1.66mg{\cdot}g^{-1}$), total soluble sugars ($4.75 mg{\cdot}g^{-1}$) and phenolics ($0.89mg{\cdot}g^{-1}$) increased in response to foliar application of 1 mM putrescine compared to the control. Ascorbic acid and thiamine also had positive effects on various plant morphological traits and chemical constituents in leaves compared to control plants, but the growth-promoting effects of polyamines were more pronounced. Hence, applying polyamines to gladiolus leaves will help improve spike production and increasing propagule (cormel) yields.

Comparison of Low Concentration and High Concentration Arsenic Removal Techniques and Evaluation of Concentration of Arsenic in Ground Water: A Case Study of Lahore, Pakistan

( Abdullah Yasar ),( Amtul Bari Tabinda ),( Uzma Shahzadi ),( Pakeeza Saleem ) 한국화학공학회 2014 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.52 No.5

The main focus of this study was the evaluation of arsenic concentration in the ground water of Lahore atdifferent depth and application of different mitigation techniques for arsenic removal. Twenty four hours of solar oxidationgives 90% of arsenic removal as compared to 8 hr. or 16 hr. Among oxides, calcium oxide gives 96% of Asremoval as compared to 93% by lanthanum oxide. Arsenic removal efficiency was up to 97% by ferric chloride, whereas95% by alum. Activated alumina showed 99% removal as compared to 97% and 95% removal with bauxite and charcoal,respectively. Elemental analysis of adsorbents showed that the presence of phosphate and silica can cause a reductionof arsenic removal efficiency by activated alumina, bauxite and charcoal. This study has laid a foundation forfurther research on arsenic in the city of Lahore and has also provided suitable techniques for arsenic removal.

On a type of semi-symmetric non metric connection in Lorentzian para-Sasakian manifold

E. Yasar 장전수학회 2011 Proceedings of the Jangjeon mathematical society Vol.14 No.2

We FInd the expression for the curvature tensor of Lorentzian para-Sasakian (briefly LP-Sasakian) manifold that admits a type of semi-symmetric non metric con-nection. We study the properties of curvature tensor, conformal curvature tensor and projective curvature tensor. We show that the projective curvature tensor of Lorentzian para-Sasakian manifold is skew symmetric with respect to semi-symmetric non-metric connection. Last we obtain conditions under which the conformal curvature and the quasi conformal curvature tensors are conformally and quasi conformally flat, respec-tively.

Comparison of cost and treatment efficiency of solar assisted advance oxidation processes for textile dye bath effluent

Abdullah Yasar,Sadia Khalil,Amtul Bari Tabinda,Afifa Malik 한국화학공학회 2013 Korean Journal of Chemical Engineering Vol.30 No.1

The study investigated the efficiency and cost effectiveness of solar-assisted photochemical processes in comparison with advance oxidation processes (AOPs) for the textile effluents treatment. Efficiency of UV irradiation alone for one hour in removing color was almost double in comparison to solar radiation alone for effluents of different dye concentrations (E1>E2>E3). For coupled UV/H2O2 process, there was higher color removal efficiency obtained for effluent E3 (85%) as compared to E2 (70%) and E1 (57%), while E1 showed higher COD removal efficiency (70%) as compared to E2 (50%) and E3 (62%). However, the efficiency of solar/H2O2 for COD removal was comparable to UV/ H2O2, i.e., E2 (57%) and E3 (53%). In the case of UV and solar-assisted photo-Fenton processes, removal efficiency of the UV process was further increased as approached to almost 90% removal for E1; on the other hand, the solar-assisted process efficiency remained the same. The relative efficiencies of AOPs were found to be in the order of UV assisted photo-Fenton process>UV/H2O2>UV alone. Although, solar-assisted Fenton treatments were relatively low and slow but without any energy consumption in comparison to high energy consumption of UV. Among the UV processes, UV assisted photo-Fenton treatment appeared to have better color removal efficiency with energy requirements of 5 kWh/m3, 8 kWh/m3 and 3 kWh/m3 for E1, E2 and E3, respectively.