Synthesis and characterization of ZnO-based/derived nanoparticles as promising photocatalysts

Biocompatibility and the ability to create tumor-killing reactive oxygen species have drawn increasing attention to zinc oxide (ZnO) based/derived nanoparticles for photodynamic treatment. There are several variables that may affect the performance of ZnO-based NPs in PDT that can be manipulated by doping and compositing. Among these variables are the charge separation, the absorption potential, and the bandgap engineering. In this thesis, we reviewed designed and developed improved photodynamic performance ZnO based/derived nanoparticles

Does Employee retention affect Organizational Competence?

Purpose: The purpose of this study is to determine the factors that affect employee retention and to analyze the relationship between the factors of employee retention and organizational competence. Approach: A model is proposed that illustrates the factors as rewards. Career development opportunities, work environment and supervisor support affects employee retention in organizations and also demonstrates the relationship between factors affecting employee retention and the organizational competence. Findings: Results illustrates that rewards, career development opportunities, supervisor support and work environment have a positive relationship with employee retention as well as the development of organizational competence by retaining employees. Keywords: employee retention, competencies, organizational competencies

Some Topological Properties of Intuitionistic Fuzzy Normed Spaces

In 1986, Atanassov introduced the concept of intuitionistic fuzzy set theory which is based on the extensions of definitions of fuzzy set theory given by Zadeh. This theory provides a variable model to elaborate uncertainty and vagueness involved in decision making problems. In this chapter, we concentrate our study on the ideal convergence of sequence spaces with respect to intuitionistic fuzzy norm and discussed their topological and algebraic properties

A Study of Bounded Variation Sequence Spaces

In the theory of classes of sequence, a wonderful application of Hahn-Banach extension theorem gave rise to the concept of Banach limit, i.e., the limit functional defined on c can be extended to the whole space l ∞ and this extended functional is called as the Banach limit. After that, in 1948 Lorentz used this concept of a week limit to introduce a new type of convergence, named as the almost convergence. Later on, Raimi generalized the concept of almost convergence known as σ − convergence and the sequence space BV σ was introduced and studied by Mursaleen. The main aim of this chapter is to study some new double sequence spaces of invariant means defined by ideal, modulus function and Orlicz function. Furthermore, we also study several properties relevant to topological structures and inclusion relations between these spaces

Testing for Exuberance Behavior in Agricultural Commodities of Pakistan

One of the basic aims of the sustainable development goals is to reduce poverty, hunger and malnutrition across the globe. It is believed that commodity booms have severe impacts on developing countries where households spend large share of their disposable income on food. Thus, hitting the poor’s ability buy necessities such as food and energy. Pakistan being a developing economy has a large share of its exports that depends on the agriculture sector in which price is the main determinant and plays a key role. In last decade, an increasing trend has been observed in agricultural commodity prices leading to food insecurity, poverty and inflation in the economy. Thus, it is essential to figure out the price bubbles in the agriculture sector. In this regard, present study is preliminary in nature and takes a lead in addressing this important issue and finds out the bubbles in agricultural commodity prices of Pakistan. The empirical analysis is carried out by employing recently developed state of art GSADF approach developed by Phillips et al. (2015) and making use of monthly data of seven key agricultural commodities in Pakistan spanning over the period of 18 years (2000M1 to 2018M5). The findings suggest the occurrence of bubbles in all price series with some interesting facts. Some relevant policy recommendations are discussed as well

Testing for Exuberance Behavior in Agricultural Commodities of Pakistan

One of the basic aims of the sustainable development goals is to reduce poverty, hunger and malnutrition across the globe. It is believed that commodity booms have severe impacts on developing countries where households spend large share of their disposable income on food. Thus, hitting the poor’s ability buy necessities such as food and energy. Pakistan being a developing economy has a large share of its exports that depends on the agriculture sector in which price is the main determinant and plays a key role. In last decade, an increasing trend has been observed in agricultural commodity prices leading to food insecurity, poverty and inflation in the economy. Thus, it is essential to figure out the price bubbles in the agriculture sector. In this regard, present study is preliminary in nature and takes a lead in addressing this important issue and finds out the bubbles in agricultural commodity prices of Pakistan. The empirical analysis is carried out by employing recently developed state of art GSADF approach developed by Phillips et al. (2015) and making use of monthly data of seven key agricultural commodities in Pakistan spanning over the period of 18 years (2000M1 to 2018M5). The findings suggest the occurrence of bubbles in all price series with some interesting facts. Some relevant policy recommendations are discussed as well

Overcrowding in the emergency departments: challenges and opportunities for improvement

With the advent of Emergency Medicine, one can observe an increase in the number of Emergency Departments (ED) across the country. However, most EDs struggle due to an overwhelming number of patients. Overcrowding can lead to delays in patient care. For a city like Karachi which is an active disaster zone, preemptive preparedness is required in the face of terror threats and such overcrowding needs to be decreased to a bare minimum. The most frequent causes of prolonged length of stay (LOS) in the ED include non-availability of in-hospital beds, delays in response to subspecialty consultations and escalating medical expenses. All of these can negatively impact patient care by putting patient safety at risk and patient care in jeopardy. There is an increased risk of unintentional medical errors and a concomitant increase in unwanted lawsuits. A few simple interventions which may help alleviate this situation to some extent have been discussed

Malignant eccrine adenoma with sarcomatous (Heterologous) components: Report of a rare skin adnexal neoplasm with literature review

Malignant eccrine spiradenoma (MES) is an exceedingly rare skin adnexal tumor that arises from pre-existing benign eccrine spiradenoma (BES). MES tumors show a wide spectrum of morphological features, posing a diagnostic challenge to the pathologist. Sarcomatous (heterologous) elements are seen in a few of these tumors, further complicating the morphological picture. We herein describe a case of a 66-year-old male who presented with a recently enlarging, ulcerated, nodular skin lesion over the right leg that had been present for the last 25 years. The patient underwent wide local excision of the tumor. Microscopic examination revealed a neoplastic lesion comprising benign and malignant components. The carcinomatous component showed features of infiltrating adenocarcinoma, not otherwise specified, whereas the sarcomatous component showed predominant osteosarcomatous and focal chondrosarcomatous differentiation. The benign component showed morphological and immunohistochemical features of BES. No adjuvant treatment was administered. The patient was alive and disease-free for 14 months, after which he was lost to follow-up. Careful identification and knowledge related to histological diversity are keys to the correct diagnosis of this rare tumor. MESs are potentially aggressive tumors, and therefore, close long-term follow-up should be maintained

Indução, fortificação e primazia do inglês como meio de instrução na primária

Having influenced by the British linguistic superiority, English bequeathed to people of India. Consequently, it got into some of the elite class. Due to the frequent use of English in science and technology and military elites it ran into higher education first then it was considered as medium of instruction at school level too. The current study investigated into the perceptions of the primary school teachers about induction, fortification and primacy of the English language as a medium of instruction in Vehari district. The population of the study were all the primary school teachers of Vehari region while sample of the study selected from all the city schools as well as from surrounding villages. Now a days, English is one of the main and compulsory subjects in Pakistan and was declared as a medium of instruction at school level officially in 2009 and college levels. But teachers at most of the schools practice code-switching while teaching English in the classrooms. For the last five years, English medium of instruction is now in practice, so keeping all the reviewed in the literature ahead, the current study attempted to examine the teachers’ reflections about effects of English language as a medium of instruction at elementary level by surveying about the use of English language as medium of instruction at primary level. The earlier studies reviewed mostly about the implementation of English as a medium of instruction particularly regarding the hurdles and obstacles. As linguists working in language teaching in the classroom setting have meaningfully extended the scope of their research to redress the fundamental areas of classroom practices connected with teaching/learning of English as a medium of instruction. Moreover, the current study has significant suggestions for educational research for pointing out the loopholes and drawbacks in terms of English language implementation as instructional goal. The data was analyzed using SPSS version 21. The study concluded with some suggestions and pedagogical implication to the Policy makers, higher authorities and National accreditation for teacher education in Vehari and Pakistan.Habiendo influido por la superioridad lingüística británica, el inglés legó a la gente de la India. En consecuencia, entró en parte de la clase de élite. Debido al uso frecuente del inglés en la ciencia y la tecnología y en las élites militares, primero se introdujo en la educación superior y luego se consideró también como medio de instrucción en el nivel escolar. El estudio actual investigó las percepciones de los maestros de escuelas primarias sobre la inducción, el enriquecimiento y la primacía del idioma inglés como medio de instrucción en el distrito de Vehari. La población del estudio fueron todos los maestros de escuela primaria de la región de Vehari, mientras que la muestra del estudio se seleccionó de todas las escuelas de la ciudad, así como de las aldeas vecinas. Hoy en día, el inglés es una de las materias principales y obligatorias en Pakistán y se declaró oficialmente como un medio de instrucción en el nivel escolar en 2009 y en el nivel universitario. Pero los maestros en la mayoría de las escuelas practican el cambio de código mientras enseñan inglés en las aulas. Durante los últimos cinco años, el medio de instrucción en inglés está ahora en práctica, por lo que manteniendo todo lo revisado en la literatura a continuación, el estudio actual intentó examinar las reflexiones de los maestros sobre los efectos del idioma inglés como medio de instrucción a nivel elemental mediante una encuesta sobre el uso del idioma inglés como medio de instrucción en el nivel primario. Los estudios anteriores revisaron principalmente sobre la implementación del inglés como medio de instrucción, particularmente en relación con los obstáculos y obstáculos. A medida que los lingüistas que trabajan en la enseñanza de idiomas en el aula, han ampliado significativamente el alcance de su investigación para corregir las áreas fundamentales de las prácticas en el aula relacionadas con la enseñanza / aprendizaje del inglés como medio de instrucción. Además, el estudio actual tiene sugerencias importantes para la investigación educativa para señalar las lagunas e inconvenientes en términos de la implementación del idioma inglés como objetivo educativo. Los datos se analizaron utilizando la versión 21 de SPSS. El estudio concluyó con algunas sugerencias e implicaciones pedagógicas para los responsables de las políticas, las autoridades superiores y la acreditación nacional para la formación docente en Vehari y Pakistán.Tendo influenciado pela superioridade lingüística britânica, o inglês legou a pessoas da Índia. Consequentemente, entrou em algumas das classes de elite. Devido ao uso frequente de inglês em ciência e tecnologia e elites militares, o ensino superior foi o primeiro a ser considerado como meio de instrução também na escola. O presente estudo investigou as percepções dos professores do ensino fundamental sobre indução, fortalecimento e primazia do idioma inglês como meio de instrução no distrito de Vehari. A população do estudo foram todos os professores primários da região de Vehari, enquanto a amostra do estudo foi selecionada de todas as escolas da cidade, bem como das aldeias vizinhas. Hoje em dia, o inglês é um dos assuntos principais e obrigatórios no Paquistão e foi declarado oficialmente como meio de instrução a nível escolar em 2009 e nos níveis universitários. Mas os professores na maioria das escolas praticam a troca de código enquanto ensinam inglês nas salas de aula. Nos últimos cinco anos, o meio inglês de instrução está agora em prática, então mantendo todos os revisados na literatura, o presente estudo tentou examinar as reflexões dos professores sobre os efeitos da língua inglesa como um meio de instrução em nível elementar sobre o uso da língua inglesa como meio de instrução no nível primário. Os estudos anteriores revisaram principalmente sobre a implementação do inglês como meio de instrução, particularmente em relação aos obstáculos e obstáculos. Como linguistas que trabalham no ensino de línguas em sala de aula, ampliaram significativamente o escopo de suas pesquisas para corrigir as áreas fundamentais das práticas de sala de aula ligadas ao ensino / aprendizagem do inglês como meio de instrução. Além disso, o presente estudo tem sugestões significativas para a pesquisa educacional para apontar as lacunas e desvantagens em termos de implementação da língua inglesa como meta instrucional. Os dados foram analisados usando SPSS versão 21. O estudo concluiu com algumas sugestões e implicações pedagógicas para os decisores políticos, autoridades superiores e acreditação nacional para a formação de professores em Vehari e no Paquistão