Acer pentapomicum (Family Aceraceae) is commonly known as maple plant. The aim of the study was to evaluate A. pentapomicum for biogenic synthesis of nanoparticles, its characterization, pharmacological importance and micro propagation. A. pentapomicum leaves mediated gold and silver nano-particles were successfully synthesized by reacting 1ml of aqueous leaves extract with different ratios of 1mM AuCl3 and AgNo3 solutions. The synthesis of gold and silver nanoparticles were confirmed and characterized by visual observation, UV-Visible-spectroscopy, scanning electron microscopy (SEM), Energy Dispersive X-ray (EDX), X-Ray Diffraction (XRD) and Fourier Transform Infrared FTIR analysis. Color change from yellowish to dark purple and to reddish brown confirmed the gold and silver nanoparticles synthesis. Gold nanoparticles (AuNps) were stable at 25-35°C, at pH 7-8 and in the presence of millimolar salt (NaCl) solution. Biosynthesized nanoparticles display a characteristic surface plasmon resonance at 568nm (AuNps) and 450nm (AgNps) in UV-Visible spectrum. SEM and EDX analysis also confirmed the presence and synthesis of gold and silver nanoparticles with spherical morphology. XRD patterns reveals the cubic, face centered, crystalline nature of gold and silver nanoparticles. The leaves mediated silver nanoparticles, however, were efficiently produced at a temperature range of 35-55°C and an optimum pH of 6-7. The average size of the synthesized gold and silver nanoparticles found to be in the range of 18-25nm. The FTIR analysis of gold and silver nanoparticles affirmed the presence of certain biomolecules (carboxylic acid, flavonoids, phenols) that act as reducing and capping agent for leaves mediated nanoparticles synthesis. Agar well diffusion method was carried out for potent biocidal activities of gold and silver nanoparticles against different bacterial, fungal and candida strains. Both synthesized nanoparticles showed potent bactericidal, fungicidal and candidacidal activities. However, Klebseilla pneumonia with growth inhibition of 91% was the most susceptible microbe to gold nanoparticles. Antimicrobial activities of A. pentapomicum (leaves and stem) extracted with different organic solvents were also evaluated using Agar disc diffusion and well diffusion bioassay. Leaves extracted samples showed better biocidal activities than stem extracted samples. The most susceptible bacterium was Pseudomonas aeruginosa (79-94%) and Escherichia coli (87-91%), while, the least susceptible was Staphylococcus aureus (26-50%). Citrobacter freundi was the most resistant microbe to different plant extracts. Aspergillus niger was the most inhibited fungal species by both stems and leaves extracts followed by Rizopus oryzae. Regarding the antioxidant activity, different plant extracts and its synthesized nanoparticles possessed proficient antioxidant activity. However, methanolic extract of leaves and ethyl acetate extract of stem recorded maximum antioxidant activity. Gold nanoparticles showed better antioxidant activity than silver nanoparticles. When evaluated for phytotoxic activity, all plant extracts proved to be toxic against Lemna minor, revealing Butanol extract with maximum toxicity (87%). The qualitative analysis of different solvent extracted fractions confirmed the presence of various phytoconstituents such as alkaloids, terpenoids, flavonoids, tannins, saponins, fixed oil, carbohydrates, and proteins etc. A successful micro propagation protocol for the shooting was developed and it was found that full strength woody plant medium (WPM) supplemented with BAP + IAA (2+0.5 mg l-1), recorded maximum shoot induction. Based on these results the plant can be efficiently used for safe, ecofriendly nanoparticles production, and as a biocidal, an antioxidant and a herbicidal agent.
3۔ پولیس کا کردار پولیس کے لیے شرطہ کا لفظ امہات الکتب میں ملتا ہے۔" صاحب الشرطہ" (یعنی دستے کا امیر ) کا لقب ابتدا میں کسی صوبے یا شہر کے حاکم (والی) کے لیے مخصوص تھا، جو تمام دینی و دنیوی امور کا فیصلہ کرتا تھا، لیکن عباسیوں کے عہد میں یہ لقب صرف اس خاص عامل کے لیے مخصوص ہو گیا، جس کے ذمے نظم و نسق اور حفاظت عامہ کا کام ہوتا تھا، یعنی جس کے فرائض ہمارے کوتوال یا سپرنٹنڈنٹ پولیس کے سے ہوتے تھے ۔ خلفائے عباسیہ، اندلس کے خلفائے امویہ اور مغرب و مصر کے خلفائے فاطمیہ کے ماتحت صاحب الشرطہ کو قاضی سے زیادہ اختیارات حاصل ہوتے تھے، کیونکہ اسے یہ بھی اختیار تھا کہ وہ محض شبہ کی بنا پر کسی کے خلاف کارروائی کر سکےاور جرم کا ثبوت مہیا ہونے پہلے ہی جسے چاہے سزا کی دھمکی دے، لیکن شہری اس کے تابع فرمان نہیں ہوتے تھے ۔ اس کا حکم اور اختیار طبقے کے لوگوں اور بالخصوص تمام مشتبہ اور بری ادنیٰ شہرت رکھنے والے افراد پر ہی چلتا تها، البتہ اندلس ميں الشرطۃ الكبرٰى ( بڑی شرطہ) اور الشرطۃالصغرٰى (چھوٹی شرطہ ) میں فرق کیا جاتا تھا۔ الشرطۃ الکبرٰی کے نمائندے ایسے بڑے بڑے سرکاری افسروں کے خلاف بھی قانونی کارروائی کر سکتے تھے، جو کسی جرم کے مرتکب ہوے ہوں، بحالیکہ الشرطۃ الصغرٰى كا تعلق بالتخصيص ادنیٰ طبقے کے لوگوں سے ہوتا تھا۔ 371 کسی بھی ریاست میں نظام حکومت تین شعبوں میں تقسیم ہوتا ہے: مقننہ ، عدلیہ اور انتظامیہ۔ مقننہ کا کام قانون بنانا ہے۔ عدلیہ قانون کی تشریح کرتی ہے اور انتظامیہ قانون کی تنفیذ کا فریضہ سرانجام دیتی ہے ۔ قانون کی تنفیذ میں سب سے اہم پہلو قانون کی حفاظت کا ہے۔اس بات کی نگہداشت بہت ضروری ہوتی ہے کہ...
In order to contain the spread of corona virus (COVID-19) disease, strict border closure measures have been taken globally. Migrants and refugees are affected across the globe due to such measures. Amid the COVID-19 pandemic, the economic recession escalated across the globe which is expected to have serious implications for the migrant workers and laborers. Potohar region was selected to explore implications of return migration from abroad, but the fieldwork halted immediately due to the pandemic outbreak. Since the data on Pakistani migrants is dispersed and scant, it was nearly impossible to stick to the locale for returnees. Therefore, the data for this study was collected qualitatively using exploratory methodology. In-depth interviews were conducted using interview guide as a tool of research. The paper is based on analysis of the narratives based on the experiences of the returnees especially. It sheds light on the state of the stranded Pakistani migrants who have been returning or awaiting repatriation due to layoffs. It delves into long-run and short-run challenges due to return migration, in Pakistan which highly depends on remittances from abroad. Challenges created by sudden end to remittances, entrepreneurial setups and returnees’ reintegration in the society need immediate attention. It is recommended that the state should support and monitor the migrants living abroad, ease out issues in repatriation of the laid off workers, pave way for investment, offer insurance plans, reduce reliance on remittance flow and engage them in Public Private Partnerships for sustainable reintegration.
It was a descriptive study, which described facts and characteristics of the given population and area of interest systematically, factually and accurately. A clear purpose, rationale and statement of objectives with research questions were given. A set of research tools were developed and pilot tested. Data were collected from different sources and made meaningful with the help of tables and figures that were further validated by using statistical measures. The sample included 08 Provincial Level Education Officers (25%), 54 District Level Educational Officers of 8 districts (33.3%), 08 Executive District Education Officers (33.3%), 16 District Education Officers (33.3%) both genders, 32 Deputy District Level Education Officers (33.3%) and 80 Principals, (5 %) randomly selected throughout the province. The data were obtained through the tools of questionnaire; interviews and literature review. Two sets of questionnaires with almost the same items were developed for fielding to the District Level Education Officers and principals of government high schools. The statements of questionnaires were based on the indicators drawn from the review of literature after ensuring their relevancy to the problem of the study. The interviews were held with eight Provincial Level Education Officers on prescheduled dates and times. The data were given both quantitative and qualitative treatment. The outcome of the study revealed that there were no uniform indicators for monitoring, supervision and control of the work and responsibilities of high school principals. The principals, district and Provincial Level Education Officers were not given proper job specifications and resultantly they overlapped the roles and responsibilities of one another, which caused mismanagement. There was partial implementation of educational policies. The study found that although there was strict implementation of financial rules, the academic and professional norms did not receive that much consideration. Mobility of the majority of the principals and district level officers to higher positions was based on seniority from teaching cadre without any prior training in managerial and administrative skills. Communication gap was identified among provincial, district and school level education officers. There was also unnecessary political intervention in recruitment, transfers and in the implementation of rules and policies due to which effective control was not possible. There was no proper system for incentives and disincentives, rewards and i punishments. The study made recommendations including, but not restricted to, formulation of a strategy for effective control of secondary school principals; required the principals to first develop vision and then translate it into implementable objectives; suggested training in administrative, managerial and leadership skills of principals as well as district and Provincial Level Education Officers for effective performance of their roles. The need for effective coordination between the principals and District Level Education Officers in curricular and co- curricular programmes was also emphasized. It was proposed that the school-based objectives should be in line with the strategies of the national education policy. Further, the relevant provisions of the policy ought to be properly conveyed to the school principals for making a uniform approach in developing their respective institutional policies that will also form basis for the evaluation of the performance of principals. It was also suggested that frequency of evaluation should be on quarterly basis. The indicators for the evaluation of performance of the principals should be uniform, clear and comprehensible and also based on measurable and observable metrics. In order to make these indicators effective, they should align with objectives, standards and needs of the districts to match school context. The study recommended a viable strategy for the control of high school principals, working in public sector.