Development of high-corrosion resistant dental implants via microarc oxidation of titanium in silica-based electrolytes

Tehseen Zehra,Mosab Kaseem 대한치과재료학회 2022 대한치과기재학회 학술대회 Vol.2022 No.11

Effect of guaran on the corrosion characteristics of Ti-15Zr alloy treated by plasma electrolytic oxidation for dental applications

Mosab Kaseem,Tehseen Zehra 대한치과재료학회 2022 대한치과기재학회 학술대회 Vol.2022 No.11

Customer brand identifi cation, affective commitment, customer satisfaction, and brand trust as antecedents of customer behavioral intention of loyalty: An empirical study in the hospitality sector

Raouf Ahmad Rather,Shehnaz Tehseen,Murtaza Hassan Itoo,Shakir Hussain Parrey 한국마케팅과학회 2019 마케팅과학연구 Vol.29 No.2

The current study presents an integrated model that explores how customer brand identification (CBI), affective commitment, customer satisfaction, and brand trust influence the development of customer behavioral intention of loyalty (CBIL) in the hospitality sector. The underpinning theories of this study are social identity theory and relationship marketing theory. Data were collected in the form of a survey from 345 customers staying at different hotels across six cities in India. The data were analyzed by using confirmatory factor analysis, followed by structural equation modeling. The findings illustrated that the influence of CBI on CBIL is direct as well as mediated by affective commitment, customer satisfaction, and brand trust. The latter three constructs were also direct predictors of CBIL while the influence of customer satisfaction and brand trust on CBIL was found to be mediated by affective commitment as well. These matters have received little attention in marketing generally and hospitality research particularly, and knowledge of the proposed relationships may lead to further research on this topic.

Impact of Facebook Usage on Firm’s Performances among Malaysian Chinese Retailers

Sulaiman Sajilan,Shehnaz Tehseen,Eiad Yafi,Xiong Ting 사람과세계경영학회 2019 Global Business and Finance Review Vol.24 No.4

Social media including Facebook has been acknowledged to play a vital role in firms achieving superior performance. Malaysia is a multicultural country in which the Malaysian Chinese are considered to be the most successful entrepreneurs. There is, however, a lack of research regarding the influence of Facebook usage on firm performance among Malaysian Chinese retailers. As such, this study had two aims. Firstly, the study investigated the influence of compatibility, cost effectiveness, trust, and interactivity on Facebook usage among Malaysian Chinese retailers. Secondly, the study assessed the impact of these retailers’ Facebook usage on their perceived financial performance, perceived non-financial performance, perceived business growth, and perceived performance relative to competitors under the moderating impact of market turbulence. This study developed a conceptual model based on the Strategic Contingency Theory (SCT) and Diffusion of Innovation (DOI) theory, and used a structured survey instrument to gather data. Using non-probability sampling techniques, 129 Malaysian Chinese retailers from Kuala Lumpur and Selangor were recruited for the study. Data was analysed using PLS-SEM techniques. The results showed that only compatibility, cost effectiveness, and interactivity have a statistically significant positive influence on Facebook usage, which in turn has a statistically significant positive influence on the retailers’ perceived financial performance, perceived non-financial performance, perceived business growth, and perceived performance relative to competitors. Moreover, market turbulence was only found to be a moderator that improves the impact of Facebook usage on perceived financial performance, perceived business growth, and perceived performance relative to competitors, but not perceived non-financial performance. These findings contribute to current literature and provide insights into the role and importance of Facebook usage on firm performance among Malaysian Chinese retailers, possibly encouraging more retailers to deploy social media in their business processes.

Genome-wide identification and expression analyses of WRKY transcription factor family members from chickpea (Cicer arietinum L.) reveal their role in abiotic stress-responses

Muhammad Waqas,Muhammad Tehseen Azhar,Iqrar Ahmad Rana,Farrukh Azeem,Muhammad Amjad Ali,Muhammad Amjad Nawaz,정규화,Rana Muhammad Atif 한국유전학회 2019 Genes & Genomics Vol.41 No.4

Background WRKY proteins play a vital role in the regulation of several imperative plant metabolic processes and pathways, especially under biotic and abiotic stresses. Although WRKY genes have been characterized in various major crop plants, their identification and characterization in pulse legumes is still in its infancy. Chickpea (Cicer arietinum L.) is the most important pulse legume grown in arid and semi-arid tropics. Objective In silico identification and characterization of WRKY transcription factor-encoding genes in chickpea genome. Methods For this purpose, a systematic genome-wide analysis was carried out to identify the non-redundant WRKY transcription factors in the chickpea genome. Results We have computationally identified 70 WRKY-encoding non-redundant genes which were randomly distributed on all the chickpea chromosomes except chromosome 8. The evolutionary phylogenetic analysis classified the WRKY proteins into three major groups (I, II and III) and seven sub-groups (IN, IC, IIa, IIb, IIc, IId and IIe). The gene structure analysis revealed the presence of 2–7 introns among the family members. Along with the presence of absolutely conserved signatory WRKY domain, 19 different domains were also found to be conserved in a group-specific manner. Insights of gene duplication analysis revealed the predominant role of segmental duplications for the expansion of WRKY genes in chickpea. Purifying selection seems to be operated during the evolution and expansion of paralogous WRKY genes. The transcriptome data-based in silico expression analysis revealed the differential expression of CarWRKY genes in root and shoot tissues under salt, drought, and cold stress conditions. Moreover, some of these genes showed identical expression pattern under these stresses, revealing the possibility of involvement of these genes in conserved abiotic stress–response pathways. Conclusion This genome-wide computational analysis will serve as a base to accelerate the functional characterization of WRKY TFs especially under biotic and abiotic stresses.

Salicylic acid and kinetin mediated stimulation of salt tolerance in cucumber (Cucumis sativus L.) genotypes varying in salinity tolerance

Ali Raza Gurmani,Sami Ullah Khan,Amjad Ali,Tehseen Rubab,Timothy Schwinghamer,Ghulam Jilani,Abid Farid,Jinlin Zhang 한국원예학회 2018 Horticulture, Environment, and Biotechnology Vol.59 No.4

Greenhouse studies were undertaken to evaluate the genetic performance of two cucumber genotypes (Long Green and Summer Green) at four salinity levels (0, 25, 50, and 100 mM NaCl). Seeds were pretreated with 50 mg salicylic acid (SA) L−1 and 25 mg kinetin (Kin) L−1. Under hydroponic conditions, seed pretreatment with Kin significantly increased shoot and root dry biomass and reduced the salt injury index in both genotypes. SA reduced the salt injury index of Long Green cucumbers. In a pot experiment, Kin treatment reduced Na+ and increased K+ concentration, photosynthesis, and chlorophyll content in both genotypes, compared to SA under saline soil conditions. Kin treatment improved fruit yield in both genotypes, while SA had a statistically significant effect on Long Green fruit yield. The application of SA and Kin enhanced salinity tolerance in both genotypes by the activation of antioxidants, especially superoxide dismutase, peroxidase, and catalase, which offset oxidative injury. Summer Green exhibited better salt tolerance and improved osmoregulation that resulted in higher fruit yield than Long Green. It was concluded that cucumber genotypes differed in salt tolerance, and seed pre-treatment with Kin minimized salt stress injury, even in sensitive genotype which could sustain crop production under saline conditions.

Influence of Yarn Manufacturing Techniques on dyeing behavior of Polyester/Cotton Blended Woven Fabrics

Wardah Anam,Munir Ashraf,Muhammad Bilal Qadir,Khurram Shehzad Akhtar,Sheraz Ahmad,Ali Afzal,Tehseen Ullah 한국섬유공학회 2019 Fibers and polymers Vol.20 No.12

In this research work, we have studied the dyeing behaviour of fabrics made from ring, rotor and MVS yarns. Thediscrete structure of respective yarns made by different spinning techniques have significant effect on dyeing behaviour offabrics. The fabrics were investigated for K/S values of polyester dyed, cotton dyed and polyester+cotton dyed fabrics andtheir colour fastness to crocking. The analysis of dyeing behaviour revealed that yarn manufacturing technique hassubstantial effect on the colour strength of their respective fabrics. Due to unique distribution of fibers within the crosssectionof yarn, the cotton dyed and polyester+cotton dyed fabrics made from MVS yarns exhibited better K/S values ascompared to other fabrics. The fabrics also exhibited a difference in colour fastness to crocking in dry and wet form. Thecolor fastness of fabrics to crocking in dry form were found higher than in wet form. The polyester dyed and polyester+cottondyed fabrics made from MVS yarns have shown higher color fastness to crocking.

Characterization and Comparative Evaluation of Milk Protein Variants from Pakistani Dairy Breeds

Iqra Yasmin,Rabia Iqbal,Atif Liaqat,Wahab Ali Khan,Muhamad Nadeem,Aamir Iqbal,Muhammad Farhan Jahangir Chughtai,Syed Junaid Ur Rehman,Saima Tehseen,Tariq Mehmood,Samreen Ahsan,Saira Tanweer,Saima Naz 한국축산식품학회 2020 한국축산식품학회지 Vol.40 No.5

The aim of study was to scrutinize the physicochemical and protein profile of milk obtained from local Pakistani breeds of milch animals such as Nilli-Ravi buffalo, Sahiwal cow, Kajli sheep, Beetal goat and Brela camel. Physicochemical analysis unveiled maximum number of total solids and protein found in sheep and minimum in camel. Buffalo milk contains the highest level of fat (7.45%) while camel milk contains minimum (1.94%). Ash was found maximum in buffalo (0.81%) and sheep (0.80%) while minimum in cow’s milk (0.71%). Casein and whey proteins were separated by subjecting milk to isoelectric pH and then analyzed through sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE). The results showed heterogeneity among these species. Different fractions including αS1, αS2, κ-casein, β-casein and β-lactoglobulen (β-Lg) were identified and quantitatively compared in all milk samples. Additionally, this electrophoretic method after examining the number and strength of different protein bands (αS1, αS2, β- CN, α-LAC, BSA, and β-Lg, etc.), was helpful to understand the properties of milk for different processing purposes and could be successfully applied in dairy industry. Results revealed that camel milk was best suitable for producing allergen free milk protein products. Furthermore, based on the variability of milk proteins, it is suggested to clarify the phylogenetic relationships between different cattle breeds and to gather the necessary data to preserve the genetic fund and biodiversity of the local breeds. Thus, the study of milk protein from different breed and species has a wide range of scope in producing diverse protein based dairy products like cheese.