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The current study focuses on the role of antecedents to prevent perceived job insecurity and mitigate its negative impacts on work-related well-being. The study examined variables of the resourceful environment (effective organizational communication and involvement), conserved resources (perceived employability and emotional exhaustion) and resource loss (job insecurity) by drawing on the Conservation of Resources (COR) theory for predicting the work-related well-being adding the moderating role of boundaryless career orientation.

A sample of 306 salespersons of pharmaceutical companies working in Pakistan was obtained. The hypothesized relationships were tested through structural equation modeling in SmartPLS.

The results confirmed showed that the organizational communication, employee involvement and perceived employability reduce the perceived job insecurity; however, the emotional exhaustion was positively related. It also confirmed the moderating effect of boundaryless career orientation on relationship of job insecurity and well-being.

To make employees engaged, the organizations are required to involve employees by sharing knowledge, information and power to make decisions, value their opinion and ensuring the employability. Further, salespersons having a preference of a boundaryless career proved to mitigate negative impact of job insecurity on work-related well-being.

Many empirical studies have identified that the perceived job insecurity is one of the major concerns affecting employee's well-being. However, few studies simultaneously have sought to prevent the perceived job insecurity among employees. The findings are important in developing the understanding that how salespersons perceive their capabilities and the work environment of the organization, this perception; resultantly, can influence their behaviors particularly the work engagement dimension of well-being.

本研究的焦點為探討導致僱員感到缺乏職業安全的成因, 對防止該感覺的產生扮演著什麼角色，並研究導致缺乏職業安全感的成因，就減少缺乏職業安全感給和工作有關的幸福感所帶來的負面影響方面扮演著什麼角色。研究應用了可預測與工作相關的幸福感的資源保留理論 (COR) ，來探討資源豐富的環境 (有效的機構溝通及參與) 、節約資源 (感知的受僱能力與情緒耗竭) 及資源耗損 (缺乏職業安全) 這些變數，並加入了無邊界職業生涯定向的調節角色。

研究樣本為在巴基斯坦工作的306名製藥公司營業員。研究人員透過SmartPLS的結構方程模型來測試各假設的關係。

研究結果確認了組織溝通、僱員參與及感知的受僱能力均會減輕職業不安全的感覺；唯情緒耗竭則成正相關。研究結果亦確認了無邊界職業生涯定向在缺乏職業安全與幸福感之間的相互關係上起著調節效應。

過去許多實證研究均已證實缺乏職業安全感是影響僱員幸福感的一個主要因素，唯很少研究會同時透過探討資源豐富的環境 (有效的機構溝通及參與) 和節約資源 (感知的受僱能力和情緒耗竭) 等變數，來嘗試防止僱員產生職業不安全的感覺。本研究的結果至為重要、因它使我們更了解營業員對自己的能力及機構的工作環境的看法、最終會影響他們的工作行為，特別是幸福感的工作投入層面。

缺乏職業安全感、營業員、工作投入、與工作相關的幸福感、無邊界職業生涯定向

研究論文

The purpose of study is to examine the dual nature of the branches for the problem of Darcy–Forchheimer porous medium flow of rotating nanofluid on a linearly stretching/shrinking surface under the field of magnetic influence. The dual nature of the branches confronts the uniqueness and existence theorem, moreover, mathematically it is a great achievement. For engineering purposes, this study applied a linear stability test on the multiple branches to determine which solution is physically reliable (stable).

Nanofluid model has been developed with the help of Buongiorno model. The partial differential equations in space coordinates for the law of conservation of mass, momentum and energy have been transformed into ordinary differential equations by introducing the similarity variables. Two numerical techniques, namely, the shooting method in Maple software and the three-stage Lobatto IIIA method in Matlab software, have been used to find multiple branches and to accomplish stability analysis, respectively.

The parametric investigation has been executed to find the multiple branches and explore the effects on skin friction, Sherwood number, Nusselt number, concentration and temperature profiles. The findings exhibited the presence of dual branches only in the case of a shrinking sheet.

The originality of work is a determination of multiple branches and the performance of the stability analysis of the branches. It has also been confirmed that such a study has not yet been considered in the previous literature.