143 research outputs found

    Unified multi-tupled fixed point theorems involving mixed monotone property in ordered metric spaces

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    In the present article, we introduce a unified notion of multi-tupled fixed points and utilize the same to prove some existence and uniqueness unified multi-tupled fixed point theorems for Boyd-Wong type nonlinear contractions satisfying generalized mixed monotone property in ordered metric spaces. Our results unify several classical and well-known n-tupled (including coupled, tripled and quadrupled ones) fixed point results existing in the literature.Comment: arXiv admin note: substantial text overlap with arXiv: 1601.0251

    Late Cretaceous and Early Tertiary Benthic Foraminiferal Biostratigraphy in Khuzdar District, Balochistan, Pakistan, with Special Reference to the Influence of Tethyan Sea Closure

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    The paleontological study of benthic foraminifera in relation to the Indian-Asian boundary in Khuzdar District, Balochistan, Pakistan, have been carried in three sections of the Cretaceous-Paleogene: named as 1) PAK-section, 2) MG-section and 3) HR-section (Abbr.) of Hinar. Strata of the three sections contain typical Cretaceous-lower Tertiary benthic foraminifers such as Bolivinoides draco, Coryphostoma incrassata, C. midwayensis, Gavelinella monterelensis, Globorotalites micheliniana, Stensioina beccariiformis, S. excolata, Neoflabellina rugosa, Nuttallides truempyi and Vulvulina spinosa. Fifteen benthic foraminiferal assemblages have been recognized from the PAK-section (seven assemblages) and MG-section (eight assemblages). The Cretaceous-Paleogene strata are defined into three lithostratigraphic units consisting of the Mughal Kot Formation, the Pab Sandstone and the Jamburo Group in the ascending order. The age of the redefined Jamburo Group ranges from the Maastrichtian to the Middle Oligocene. The Cretaceous bearing strata of the Jamburo Group below the Pab Sandstone are correlated to the Mughal Kot Formation. The Cretaceous-Tertiary boundary is determined above the Pab Sandstone and the base of the Jamburo Group in the PAK-section and below coarse grained brecciated limestone in the MG-section. Whereas in the Hinar section, it is located between limestone and shale of the Jamburo Group, by the disappearance of such planktonic foraminifers as Globotruncana stuartiformis, G. falsostuarti, Gl. spp., Pseudoguembelina elegans and Recemiguembelina fructicosa and the appearance of the Danian Globorotalia pseudobulloides. The Cretaceous specimens occurring in the lower parts of the MG-section and PAK-section indicate Maastrichtian that is the age of the above mentioned Mughal Kot Formation and Pab Sandstone. Overall the redefined Jamburo Group consists of various kinds of shale, limestone, shelly limestone and marlstone. The late Cretaceous Mughal Kot Formation reveals more distinct alternation of limestone and shale, with two to three meter thick sandstone separated as a different unit equivalent to the Maastrichtian Pab Sandstone. Benthic foraminifers change their tests from calcareous to agglutinated across the Cretaceous-Tertiary boundary. The change is most obvious in the PAK-section. However, the frequency of agglutinated taxa shows fluctuation in the Paleogene of the HR-section, and in the MG-section the agglutinated ratio does not largely change at the K/T boundary and gradually decreases afterwards. This decreasing tendency may be associated with restriction of the bottom water circulation of deeper water which may be caused by closure of the Tethyan Sea, and supports the hypothesis of collision of Eurasian and Indian Plates near the end of the Cretaceous and the Early Paleocene to Eocene

    Remarks on a common Fixed Point Theorem in compact metric spaces

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    A general common fixed point theorem for two pairs of weakly compatible self mappings proved in compact metric spaces employing a slightly modified implicit relation which generalizes almost all existing relevant common fixed point theorems. Some related results are also derived besides furnishing illustrative examples

    An investigation on the effects of attitude towards algebraic problem-solving achievement

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    The main focus of this work is to explore the effects of students’ attitudes towards problem solving (ATPS) in algebra with respect to gender and type of school. The contribution of the predictor variables of ATPS in algebra to the prediction of problem-solving achievement (PSA) is being investigated. For the study, 200 class IX students are randomly selected from the government (GOVT) and private (PVT) schools in the Morrigan district, India. The algebraic attitude scale (AAS) is used to determine students’ ATPS, whereas the problem-solving test (PST) is used to determine students’ PSA in algebra. The AAS instrument consists of three subscales: perseverance (PE); self-confidence (SC), and willingness (WL). The t-test and multiple regression analysis are used to analyze the collected data. The finding reveals that there are statistically significant differences in students’ ATPS based on gender and type of school. The finding also reveals that PE, SC, and WL have a significant positive relationship with the PSA in algebra. Therefore, it is suggested that teachers should make an effort to provide support in the form of explanations, modeling, coaching, and other forms of assistance, as well as a conducive environment that encourages students’ overall ATPS that can enhance their PSA in Mathematics

    A critical exploration of talent management strategy and practice within Pakistani banking organisations

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    Talent management (TM) has been defined as a systematic and strategic approach to the management, development and retention of human resources. Talent management proposes that people represent a source of competitive advantage for organisations. However, talent management is relatively a new concept in the field of Human Resource Management (HRM) both as an academic discipline and in practice. As a result, it lacks a definite conceptual foundation in the academic literature which hampers understanding of talent management and its implications. Talent management thus presents a topical and challenging area of enquiry. Moreover, although talent management as a concept and as a set of management practice is established within Western organisations, it is a new and under-researched area within developing economies. Accordingly, the overall aim of this research was to investigate talent management strategy both conceptually and practically within the unique context of a developing economy. This research has focused on the banking sector in Pakistan which is seen as a key driver of macroeconomic development and key to the wider development and sustainability of the economy. Following increased foreign investment in Pakistan, a substantial number of multinational corporations (MNCs) are contributing to the economic and business advancement and development of the country, and MNCs are implementing dramatic changes in HRM policies and practices within Pakistani organisations. Notwithstanding, the implementation of HRM policies and practices in MNCs, there is continuing evidence that contextual factors remain major obstacles to the adoption of strategic HRM policy and practice in Pakistani organisations both public and private. This picture is reflected in the Pakistani banking industry. Talent management is an emerging concept in the West but under developed in Pakistan, hence the current research was timely, appropriate and relevant. This empirical research was based on case study research within Pakistani banks and contributes to knowledge and understanding in four significant ways. Firstly, understanding of HRM policy and practice within a developing economy addressed a gap in the literature on the specific topic of talent management. Second, the research contributed methodologically through novel adoption of a mixed method approach. Existing research in the area of HRM in Pakistan tended to focus on survey and quantitative data whereas this research incorporated a qualitative aspect. Third, this research contributed conceptually to the holistic understanding of talent management with special reference to the banking sector of Pakistan. It explored the applicability of Western models of people management within the unique context of developing economy and identified contextual factors affecting talent management within Pakistani banks. Lastly, this research contributed practically to policymaking and the development of effective talent management strategies for Pakistani organisations
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