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1.
J Environ Manage ; 357: 120575, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38569261

RESUMO

The current study explores the dynamics of business practices in Pakistan's Small and Medium Enterprises (SMEs). This research focusing on how "green supply chain management" (GSCM), Industry 4.0 technologies (IND), total quality management (TQM) and sustainable performance (SP) are interconnected. The study collected data from 382 SMEs owners and managers and data analysis was conducted utilizing by SPSS and SmartPLS. The results indicate that employ GSCM pattern has constructive impact on SMEs overall performance in terms of their social and financial aspects. Interestingly IND act as intermediaries among GSCM and sustainable performance underscoring their potential to translate sustainability efforts into outcomes. Moreover, our survey reveals that TQM have a crucial function in enriching the relationship between Industry 4.0 technologies and sustainable performance by executing as a moderator. It further highlighting the value of adopting a quality focused approach to maximize the causal factor of advancements on sustainability output. The findings of this survey research offering insights for practitioners, SMEs, and policy makers alike by highlighting the significance of integrating practices such as GSCM, IND and effective quality management to enhance SME efficiency. These outcomes further contribute to an understanding of the mechanics at play, within SMEs while offering guidance for organizations maneuvering the changing landscape of sustainable business practices and IND.


Assuntos
Comércio , Indústrias , Tecnologia
2.
Pharmaceuticals (Basel) ; 16(8)2023 Aug 09.
Artigo em Inglês | MEDLINE | ID: mdl-37631039

RESUMO

Yersinia pestis, the causative agent of plague, is a Gram-negative bacterium. If the plague is not properly treated it can cause rapid death of the host. Bubonic, pneumonic, and septicemic are the three types of plague described. Bubonic plague can progress to septicemic plague, if not diagnosed and treated on time. The mortality rate of pneumonic and septicemic plague is quite high. The symptom-defining disease is the bubo, which is a painful lymph node swelling. Almost 50% of bubonic plague leads to sepsis and death if not treated immediately with antibiotics. The host immune response is slow as compared to other bacterial infections. Clinical isolates of Yersinia pestis revealed resistance to many antibiotics such as tetracycline, spectinomycin, kanamycin, streptomycin, minocycline, chloramphenicol, and sulfonamides. Drug discovery is a time-consuming process. It always takes ten to fifteen years to bring a single drug to the market. In this regard, in silico subtractive proteomics is an accurate, rapid, and cost-effective approach for the discovery of drug targets. An ideal drug target must be essential to the pathogen's survival and must be absent in the host. Machine learning approaches are more accurate as compared to traditional virtual screening. In this study, k-nearest neighbor (kNN) and support vector machine (SVM) were used to predict the active hits against the beta-ketoacyl-ACP synthase III drug target predicted by the subtractive genomics approach. Among the 1012 compounds of the South African Natural Products database, 11 hits were predicted as active. Further, the active hits were docked against the active site of beta-ketoacyl-ACP synthase III. Out of the total 11 active hits, the 3 lowest docking score hits that showed strong interaction with the drug target were shortlisted along with the standard drug and were simulated for 100 ns. The MD simulation revealed that all the shortlisted compounds display stable behavior and the compounds formed stable complexes with the drug target. These compounds may have the potential to inhibit the beta-ketoacyl-ACP synthase III drug target and can help to combat Yersinia pestis-related infections. The dataset and the source codes are freely available on GitHub.

3.
Int J Mol Sci ; 23(18)2022 Sep 13.
Artigo em Inglês | MEDLINE | ID: mdl-36142543

RESUMO

The azo dye orange II is used extensively in the textile sector for coloring fabrics. High concentrations of it are released into aqueous environments through textile effluents. Therefore, its removal from textile wastewater and effluents is necessary. Herein, initially, we tested 11 bacterial strains for their capabilities in the degradation of orange II dye. It was revealed in the preliminary data that B. subtilis can more potently degrade the selected dye, which was thus used in the subsequent experiments. To achieve maximum decolorization, the experimental conditions were optimized whereby maximum degradation was achieved at: a 25 ppm dye concentration, pH 7, a temperature of 35 °C, a 1000 mg/L concentration of glucose, a 1000 mg/L urea concentration, a 666.66 mg/L NaCl concentration, an incubation period of 3 days, and with hydroquinone as a redox mediator at a concentration of 66.66 mg/L. The effects of the interaction of the operational factors were further confirmed using response surface methodology, which revealed that at optimum conditions of pH 6.45, a dye concentration of 17.07 mg/L, and an incubation time of 9.96 h at 45.38 °C, the maximum degradation of orange II can be obtained at a desirability coefficient of 1, estimated using the central composite design (CCD). To understand the underlying principles of degradation of the metabolites in the aliquot mixture at the optimized condition, the study steps were extracted and analyzed using GC-MS(Gas Chromatography Mass Spectrometry), FTIR(Fourier Transform Infrared Spectroscopy), 1H and carbon 13 NMR(Nuclear Magnetic Resonance Spectroscopy). The GC-MS pattern revealed that the original dye was degraded into o-xylene and naphthalene. Naphthalene was even obtained in a pure state through silica gel column isolation and confirmed using 1H and 13C NMR spectroscopic analysis. Phytotoxicity tests on Vigna radiata were also conducted and the results confirmed that the dye metabolites were less toxic than the parent dye. These results emphasize that B. subtilis should be used as a potential strain for the bioremediation of textile effluents containing orange II and other toxic azo dyes.


Assuntos
Bacillus subtilis , Água Carbonatada , Compostos Azo/química , Compostos Azo/toxicidade , Bacillus subtilis/metabolismo , Benzenossulfonatos , Biodegradação Ambiental , Carbono/análise , Água Carbonatada/análise , Corantes/química , Glucose , Hidroquinonas , Naftalenos/análise , Sílica Gel , Cloreto de Sódio , Vapor/análise , Têxteis , Ureia , Águas Residuárias/química , Água/análise
4.
Saudi J Biol Sci ; 29(6): 103280, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35521357

RESUMO

In human diet, poultry meat is an important component due to the presence of vitamins, proteins and minerals. But poultry meat can be contaminated by pathogenic bacteria which are responsible for food borne infections. The current study was therefore aimed at identification of Escherichia coli, a common pathogen causing food borne infections, in chicken samples (n = 400) collected from three districts of KhyberPukhtunkhwa; Peshawar, Kohat and Nowshera. The isolates were identified by Gram staining, API strips and through PCR (Universal Stress Protein). A total of 174 samples were positive for E. coli among the collected chicken samples. The isolates were resistant to TE, NOR and NA while were sensitive to MEM, TZP and FOS. The results were statistically significant having value P ≤ 0.05 in ANOVA. The isolates showed different antibiotic resistance genes; OXA-1, CTX-M15, blaTEM, QnrS, TetA, AAC, AAD, sul1 and sul2 which is the molecular explanations of their antibiotic resistance pattern. The PCR products were sequenced by Next Generation Sequencing (NGS) and the results revealed mutations in AAC gene (M120T and R197T) and CTX-M15 (A85V, N122D, A148S and G247D). To prevent and treat pathogenic diseases, the use of antimicrobial agents in animal husbandry are of utmost concern. The over-use and misuse of antimicrobial agents has made pathogenic E. coli multi drugs resistant making it a causative agent for many diseases in human beings. The results of the current study may be helpful for the physicians the better management of the diseases caused by E. coli.

5.
Front Plant Sci ; 13: 1074383, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36714699

RESUMO

Climate change has a devastating effect on wheat production; therefore, crop production might decline by 2030. Phosphorus (P) nutrient deficiency is another main limiting factor of reduced yield. Hence, there is a dire need to judiciously consider wheat yield, so that human requirements and nutrition balance can be sustained efficiently. Despite the great significance of biostimulants in sustainable agriculture, there is still a lack of integrated technology encompassing the successful competitiveness of inoculated phosphate-solubilizing bacteria (PSB) in agricultural systems in the context of climatic conditions/meteorological factors and soil nutritional status. Therefore, the present study reveals the modulation of an integrated P nutrient management approach to develop potential PSB consortia for recommended wheat varieties by considering the respective soil health and agro-climatic conditions. The designed consortia were found to maintain adequate viability for up to 9 months, verified through field emission scanning electron microscopy and viable count. Furthermore, a significant increase in grain yield (5%-8%) and seed P (4%) content was observed in consortia-inoculated wheat plants with 20% reduced Diammonium phosphate (DAP) application under net house conditions. Fluorescence in situ hybridization analysis of roots and amplification of the gcd gene of Ochrobactrum sp. SSR indicated the survival and rhizosphere competency of the inoculated PSB. Categorical principal component analysis (CAT-PCA) showed a positive correlation of inoculated field-grown wheat varieties in native soils to grain yield, soil P content, and precipitation for sites belonging to irrigated plains and seed P content, soil organic matter, and number of tillers for sites belonging to Northern dry mountains. However, the impact of inoculation at sites belonging to the Indus delta was found significantly correlated to soil potassium (K) content, electrical conductivity (EC), and temperature. Additionally, a significant increase in grain yield (15%) and seed P (14%) content was observed in inoculated wheat plants. Thus, the present study demonstrates for the first time the need to integrate soil biological health and agro-climatic conditions for consistent performance of augmented PSB and enhanced P nutrient uptake to curtail soil pollution caused by the extensive use of agrochemicals. This study provides innovative insights and identifies key questions for future research on PSB to promote its successful implementation in agriculture.

6.
Saudi J Biol Sci ; 28(8): 4793-4799, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-34354468

RESUMO

The Pinus wallichiana, Daphne oleiodes and Bidens chinensis have a long history of being used traditionally for treatment of various types of disorders. Most of the uses have been without any scientific evidence and toxicological assessment. We evaluated the mutagenic and cytotoxic capabilities of various parts of P. wallichiana, D. oleoides and B. chinensis. Ames Salmonella mutagenicity assay determined the mutagenicity activity against TA 98 and TA 100 bacterial strains of Salmonella typhimurium without metabolic activator S9 system. The number of mutant colonies in negative control was considered as limit to determine the mutagenicity effects of every extract. Brine shrimps lethality bioassay was used to determine the cytotoxic capabilities of the selected plants. The P. wallichiana, D. oleiodes and B. chinensis did not showed any mutagenic activity both for frameshift mutation (TA98) and base-pair substitution (TA100) without S9 mixture. The crude methanolic extract of P. wallichiana stem showed moderate cytotoxicity (53.33%) at 1000 µg/ml with LD50 value 599.634. The D. oleoides fruit showed a toxicity of 60% at 1000 µg/ml with LD50 value 367.730. The B. chinensis (whole plant) showed lethality of 63.3% at 1000 µg/ml, with LD50 204.833. The absence of any mutagenic activity of crude extract of the tested plants in both bacteria strains, TA 98 and TA 100 without the S9 mix confirms the safety of these plants to the consumers.

7.
Health Info Libr J ; 2021 Jul 14.
Artigo em Inglês | MEDLINE | ID: mdl-34259377

RESUMO

BACKGROUND: Library websites are important for marketing library services and providing access to electronic resources. OBJECTIVES: To determine the extent and quality of medical college (school) library websites in Pakistan, according to predetermined criteria. METHODS: A checklist of 40 items was developed from the literature on academic library website evaluation as well as observation of known best practice. The checklist was used on the 45 medical college websites that fitted initial inclusion criteria. RESULTS: Of the possible 114 candidates for inclusion, 52 institution websites contained no information about the library, 17 only provided minimum details, leaving 45 medical college library websites that could be included. Library websites lack uniformity, and most of the important features as only three library websites contained more than 20 items from the checklist. The Agha Khan University Medical College, Karachi library website contained the highest (27) number of items. DISCUSSION: The findings indicate the design of medical college library websites is generally inadequate in Pakistan. The websites are not performing a useful role in communicating with faculty and students. The findings point to inadequate website design skills among librarians or the lack of co-operation with professional website designers. CONCLUSIONS: Marketing of library services and good customer relations demand improvements in the information architecture of medical college library websites as well as continued maintenance of the content to ensure that it is up to date.

8.
Health Info Libr J ; 36(4): 357-366, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31602807

RESUMO

BACKGROUND: This paper is the second part of a two phase, sequential mixed method study. OBJECTIVES: To get the views of medical librarians in Pakistan regarding information literacy (IL) skills of medical students and how to teach them IL skills. METHODS: Structured interviews were conducted with 20 medical librarians in Pakistan. We audio recorded, transcribed all the interviews and performed content analysis and coding of the textual data. We presented the emerging themes with the frequency of their appearance. RESULTS: Interviewees agreed that the IL skills of their students were inadequate. Participants suggested that librarians should train students through mandatory IL instruction programmes, designed in coordination with medical faculty. However, workshops/seminars were considered the most effective IL delivery methods for medical faculty and clinicians. The majority of respondents supported the integration of IL instruction into the curriculum as an independent and credit course. DISCUSSION: Teaching IL skills to medical students requires proper planning. Therefore, librarians have to prove their place within the curricular structure of the institution and develop understanding of the pedagogy of instruction. CONCLUSION: Librarians must collaborate with faculty to train students in advanced information skills. There is a need to integrate IL instruction into the curriculum at all levels.


Assuntos
Competência em Informação , Bibliotecários , Percepção , Estudantes de Medicina , Ensino , Currículo , Educação Médica , Feminino , Humanos , Entrevistas como Assunto , Biblioteconomia , Masculino , Paquistão
9.
Health Info Libr J ; 31(4): 318-24, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25443029

RESUMO

This is the 12th in a series of articles exploring international trends in health science librarianship. This issue describes developments in health science librarianship in the first decade of the 21st century in South Asia. The three contributors report on challenges facing health science librarians in India, Pakistan and Sri Lanka. There is consensus as to the need for education, training and professional development. Starting in the next issue, the focus will turn to Africa, starting with countries in southern Africa. JM.


Assuntos
Bibliotecas Médicas/tendências , Biblioteconomia/tendências , Redes de Comunicação de Computadores , Humanos , Índia , Serviços Técnicos de Biblioteca/tendências , Paquistão , Sri Lanka
10.
J Med Libr Assoc ; 102(4): 281-7, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25349546

RESUMO

OBJECTIVES: The research explored the current practices of information literacy (IL) instruction in medical libraries of Pakistan. METHODS: A semi-structured questionnaire was mailed to the head librarians of all 114 academic medical libraries in Pakistan. It investigated the types of IL instruction provided, topics covered, methods of delivery and assessment, level of integration in the curriculum, and level of collaboration with teaching staff. RESULTS: The study revealed that 74% of the respondents had offered some types of IL instruction in their institutions during the previous year, ranging from library orientation to research-level skills. IL instruction is typically only offered to new students or first-time library users or on demand. A majority of the respondents developed IL instruction programs without faculty involvement. Librarians were primarily responsible for offering IL instruction in medical institutions. Face-to-face instruction in computer labs or lecture halls and individual instruction at reference desks were identified as the most common IL instruction delivery methods. The data indicated that oral feedback, written feedback, and searching in a computer lab were the most popular assessment methods that medical librarians used. CONCLUSION: IL instruction activities in medical libraries of Pakistan are in their infancy. Medical librarians also lack systematic approaches to IL instruction. IMPLICATIONS: Medical librarians need to develop educational partnerships with faculty for integrating IL instruction into the mainstream curriculum.


Assuntos
Competência em Informação , Armazenamento e Recuperação da Informação , Bibliotecários , Bibliotecas Médicas/organização & administração , Serviços de Biblioteca/estatística & dados numéricos , Currículo , Educação Médica/organização & administração , Humanos , Paquistão , Papel Profissional
11.
Health Info Libr J ; 30(1): 59-71, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-23413794

RESUMO

OBJECTIVE: To identify competencies for medical librarians and get these validated from head librarians and employers. METHODS: The survey method was used. A structured questionnaire, listing 84 competency statements, covering eight areas, prepared after extensive literature review, expert scrutiny and pilot testing, using a 5-point Likert scale was distributed among the head librarians and chairpersons of library committees (CLC) in 115 medical libraries. RESULTS: Sixty seven (58%) useable responses were received from head librarians and 63 (55%) from CLC. Of the 84 competency statements 83 were validated by the head librarians, 44 receiving four or higher mean score while the other 39 statements getting mean scores in the range of 3.97 and 3.06. The CLC validated 80 statements. Only 27 statements received four or higher mean score from CLC while the other 53 got mean scores in the range of 3.97 and 3.22. CONCLUSIONS: Medical librarians are required to be well versed with all those competencies which are needed for general librarianship. In addition, they are expected to have adequate knowledge of health sciences environment including medical terminologies and concepts. Sound knowledge of some competencies specific for medical libraries is an additional requirement for library personnel.


Assuntos
Bibliotecários , Competência Profissional/normas , Sistemas de Informação em Saúde/normas , Humanos , Bibliotecas Médicas/normas , Serviços de Biblioteca/normas , Paquistão , Inquéritos e Questionários
12.
Health Info Libr J ; 25(2): 116-24, 2008 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-18494646

RESUMO

OBJECTIVE: To conduct a bibliometric evaluation of the Journal of Ayub Medical College (JAMC), Abbottabad, Pakistan. METHODS: The data of articles, citations and authors of JAMC from 1997 to 2006 were collected and analysed in terms of bibliometric parameters. RESULTS: The number of articles published per year ranges between 27 and 97; most of the articles (47.2%) have 11-20 citations. Three-author contributions ranked the highest (134; 23.43%); the most prolific authors contributed seven articles; 295 (51.57%) of the authors are geographically affiliated to the North West Frontier Province (NWFP), Pakistan; the most popular subject is Internal Medicine; journal self-cited references are 43; 7769 (77.94%) of the citations were from foreign journals; the most productive institution is Ayub Medical College, Abbottabad, Pakistan. CONCLUSION: The number of papers published in JAMC per issue has been increasing over the last 10 years, and the core region is NWFP, Pakistan. Original articles are the main type of papers for this journal. The publication is open for all fields of medical sciences.


Assuntos
Bibliometria , Bases de Dados Bibliográficas/estatística & dados numéricos , Jornalismo Médico , Revisão por Pares , Publicações Periódicas como Assunto/estatística & dados numéricos , Editoração/estatística & dados numéricos , Indexação e Redação de Resumos , Humanos , Paquistão , Editoração/normas , Estudos Retrospectivos
13.
Health Info Libr J ; 25(1): 50-4, 2008 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-18251913

RESUMO

OBJECTIVE: To quantify the impact of Pakistani Medical Journals using the principles of citation analysis. METHODS: References of articles published in 2006 in three selected Pakistani medical journals were collected and examined. The number of citations for each Pakistani medical journal was totalled. The first ranking of journals was based on the total number of citations; second ranking was based on impact factor 2006 and third ranking was based on the 5-year impact factor. Self-citations were excluded in all the three ratings. RESULTS: A total of 9079 citations in 567 articles were examined. Forty-nine separate Pakistani medical journals were cited. The Journal of the Pakistan Medical Association remains on the top in all three rankings, while Journal of College of Physicians and Surgeons-Pakistan attains second position in the ranking based on the total number of citations. The Pakistan Journal of Medical Sciences moves to second position in the ranking based on the impact factor 2006. The Journal of Ayub Medical College, Abbottabad moves to second position in the ranking based on the 5-year impact factor. CONCLUSION: This study examined the citation pattern of Pakistani medical journals. The impact factor, despite its limitations, is a valid indicator of quality for journals.


Assuntos
Bibliometria , Bases de Dados Bibliográficas/estatística & dados numéricos , Revisão por Pares , Publicações Periódicas como Assunto/estatística & dados numéricos , Editoração/estatística & dados numéricos , Indexação e Redação de Resumos , Humanos , Paquistão , Editoração/normas , Controle de Qualidade , Padrões de Referência , Estudos Retrospectivos
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