scholarly journals Plant and Soil Development Cooperatively Shaped the Composition of the phoD-Harboring Bacterial Community along the Primary Succession in the Hailuogou Glacier Chronosequence

mSystems ◽  
2020 ◽  
Vol 5 (4) ◽  
Author(s):  
Yan Bai ◽  
Quanju Xiang ◽  
Ke Zhao ◽  
Xiumei Yu ◽  
Qiang Chen ◽  
...  
Keyword(s):  
Plant Development ◽  
Primary Succession ◽  
Soil Development ◽  
Bulk Soil ◽  
Environmental Drivers ◽  
Pioneer Species ◽  
Related Factors ◽  
Mountain Glacier ◽  
Content Type ◽  
Model Plant

ABSTRACT Microbes that produce phosphatases play an important role in the cycling of phosphorus (P), a key nutrient in soil development. We studied the development, compositional turnover, and environmental drivers of microbial communities carrying the phosphatase-encoding phoD gene (here called phoD communities) in the course of primary succession in the Hailuogou glacier chronosequence. We selected the pioneer species Populus purdomii Rehder as a model plant to study the communities in rhizosphere and bulk soils along the chronosequence. The bulk and rhizosphere soils hosted distinct phoD communities. Changes in the taxa Pseudomonas and Pleomorphomonas in the rhizosphere and Bradyrhizobium, Cupriavidus, and Pleomorphomonas in the bulk soil were associated with soil development. The plant development and soil property changes along the chronosequence were accompanied with changes in the phoD communities. Soil pH, soil organic carbon, and total nitrogen contents that are directly related to the plant development and litter input differences along the chronosequence were the main factors related to changes in community compositions. The community similarity decreased along the chronosequence, and the distance decay rate was higher in the bulk soil than in the rhizosphere. In summary, both in the rhizosphere and in bulk soils the phoD community succession was shaped by plant and soil development-related factors along the primary succession in the Hailuogou glacier chronosequence. IMPORTANCE Phosphorus was the key limiting nutrient for soil development during primary succession that occurred in alpine and high-latitude ecosystems with cold and humid climates. The interactions of functional microbiota involved in phosphorus cycling in the rhizosphere under different soil developmental stages along primary succession are still rarely examined. We selected the pioneer species Populus purdomii as a model plant to study the phoD-harboring bacterial communities in rhizosphere and bulk soils along a mountain glacier chronosequence. Our results showed that the bulk soils and rhizosphere host distinct phoD communities and diversity that differentially varied along the chronosequence, describing in detail the development and compositional turnover of the phoD community in the course of primary succession and determining the main environmental factors driving the development.

scholarly journals Understanding employee turnover in humanitarian organizations

2016 ◽  
Vol 48 (4) ◽  
pp. 208-214 ◽  
Author(s):  
Rameshwar Dubey ◽  
Angappa Gunasekaran ◽  
Nezih Altay ◽  
Stephen J Childe ◽  
Thanos Papadopoulos
Keyword(s):  
Employee Turnover ◽  
Factor Loading ◽  
Personal Factors ◽  
Related Factors ◽  
Content Type ◽  
Factors Affecting ◽  
Work Related ◽  
Humanitarian Organizations ◽  
Using Data ◽  
High Level

Purpose – At a time when the number and seriousness of disasters seems to be increasing, humanitarian organizations find that besides their challenging work they are faced with problems caused by a high level of turnover of staff. The paper aims to discuss these issues. Design/methodology/approach – Based on the 24 variables leading to employee turnover identified by Cotton and Tuttle (1986) the authors analyse the work-related, external and personal factors affecting employee turnover in humanitarian organizations, using a survey of members of the Indian National Institute of Disaster Management. Findings – Results indicated that the three factors are present. Of the external factors, only employment perception had a factor loading over 0.7; of the work-related factors, all were significant; of the personal factors, biographical information, marital status, number of dependants, aptitude and ability and intelligence had the highest loadings. It was also shown that behavioural intentions and net expectation were not significant. Originality/value – Only a few studies reported on employee turnover and its reasons are not well understood in the context of humanitarian organizations. To address this need, the aim of this paper is to explore the personal reasons impacting employee turnover in humanitarian organizations. In the study the authors have adopted 24 variables used in Cotton and Tuttle (1986) and classified into constructs to explain turnover, and further tested the model using data gathered from humanitarian organizations.

Quality of life in breast cancer sufferers

2016 ◽  
Vol 29 (7) ◽  
pp. 721-732 ◽  
Author(s):  
Ahmed Essmat Shouman ◽  
Nahla Fawzy Abou El Ezz ◽  
Nivine Gado ◽  
Amal Mahmoud Ibrahim Goda
Keyword(s):  
Breast Cancer ◽  
Quality Of Life ◽  
Family Income ◽  
Early Stage ◽  
Functional Domain ◽  
Related Factors ◽  
Specific Patient ◽  
Content Type ◽  
Factors Affecting

Purpose – The purpose of this paper is to measure health-related quality of life (QOL) among patients with early stage cancer breast under curative treatment at department of oncology and nuclear medicine at Ain Shams University Hospitals. Identify factors affecting QOL among these patients. Design/methodology/approach – A cross-sectional study measured QOL among early stage female breast cancer (BC) patients and determined the main factors affecting their QOL. Three interviewer administered questionnaires were used. Findings – The physical domain mostly affected in BC patients and the functional domain least. Socio-demographic factors that significantly affected BC patients QOL scores were patient age, education, having children and family income. Specific patient characteristics include caregiver presence – a factor that affected different QOL scores. Age at diagnosis, affection in the side of the predominant hand, post-operative chemotherapy and difficulty in obtaining the medication were the disease-related factors that affected QOL scores. Originality/value – The final model predicting QOL for early stage female BC patients included age, education and difficulty in obtaining the medication as determinants for total QOL score. Carer presence was the specific patient characteristic that affected different QOL scores.

Factors affecting the delivery of optimum health and safety on construction projects during the covid-19 pandemic in Zimbabwe

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Benviolent Chigara ◽  
Tirivavi Moyo
Keyword(s):  
Factor Analysis ◽  
Construction Projects ◽  
Health And Safety ◽  
Project Managers ◽  
Small Sample ◽  
Related Factors ◽  
Content Type ◽  
Factors Affecting ◽  
Related Risk ◽  
Monitoring And Enforcement

Purpose The purpose of this study was to investigate the perceptions of construction professionals relative to factors that affect the delivery of optimum health and safety (H&S) on construction projects during the COVID-19 pandemic. Design/methodology/approach The study adopted a quantitative design which entailed the distribution of a web-based questionnaire among construction professionals, namely, architects, construction/project managers, engineers, H&S managers and quantity surveyors working for contractors and construction consultants in Zimbabwe. The data were analysed with descriptive and inferential statistics. Factor analysis was used to reveal interrelated significant sets of factors affecting the delivery of optimum H&S. Findings Factor analysis revealed nine components/factors: change and innovation-related, monitoring and enforcement-related, production-related, access to information and health service-related, on-site facilities and welfare-related, risk assessment and mitigation-related, job security and funding-related, cost-related and COVID-19 risk perception-related factors as the significant factors affecting the delivery of optimum H&S during the COVID-19 pandemic in Zimbabwe. Research limitations/implications The results highlighted the need for social dialogue among construction stakeholders to support initiatives that will enhance the delivery of H&S on construction projects. Construction stakeholders may find the results useful in highlighting the areas that need improvement to protect workers’ H&S during the pandemic. However, the small sample limits the generalisability of the results to construction sectors in other regions. Originality/value The study investigated factors affecting the delivery of optimum H&S during the COVID-19 to inform interventions to enhance H&S.

People-centred management for improving construction workers' productivity in Zimbabwe

2021 ◽  
Vol 11 (2) ◽  
pp. 350-368
Author(s):  
Tirivavi Moyo ◽  
Gerrit Crafford ◽  
Fidelis Emuze
Keyword(s):  
Labour Productivity ◽  
Construction Workers ◽  
Primary Data ◽  
Related Factors ◽  
Content Type ◽  
Construction Companies ◽  
The People ◽  
Significant Difference ◽  
High Concern ◽  
The Impact

PurposeWhile operational factors reduce construction workers' productivity in Zimbabwe, the impact of the people-centred management aspects has not been empirically interrogated as a remedy. This article reports on a study that sought to determine significant people-centred management aspects that lead to improved labour productivity and assesses the existence of statistically significant differences due to the demographic variables of respondents. Demographic-specific strategies that enhance construction “workers” productivity were revealed.Design/methodology/approachThe survey research design using a self-administered questionnaire was deployed to collect the primary data. The design followed a positivist paradigm to evaluate objectively how people-centred management affects construction workers' productivity. The statistical data were descriptively and inferentially analysed.FindingsPeople-centred management was determined to be significant in improving construction workers' productivity, with the most significant aspect being the building of employee confidence in related approaches. Designations and educational levels mostly indicated a statistically significant difference in several aspects that included the adoption of a functional reward culture for workers and training on people-centred principles. Training on-site management and construction workers in people-centred management and its application are crucial to improving construction workers' productivity.Research limitations/implicationsConstruction companies should drastically improve their concern for people while they sustain a high concern for production within their construction sites. Although several factors affect construction workers' productivity, this study determined that management-related factors and people-centred management were significant towards influencing low productivity in Zimbabwe.Originality/valueThe study determined people-centred management and demographic-specific interventions as being able to improve construction workers' productivity in Zimbabwe.

Exploring the effects of studentification on neighbourhoods in Nigeria

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Oluseyi Adebowale ◽  
Fredrick Simpeh
Keyword(s):  
Research Area ◽  
Student Housing ◽  
Research Strategy ◽  
The Body ◽  
Exploratory Research ◽  
Structured Interviews ◽  
Related Factors ◽  
Content Type ◽  
Positive Effects ◽  
Analysis Technique

Purpose The increase in enrolment into higher education and the inadequate student housing in educational institutions has led to the growth of off-campus private student housing in Nigeria. Studentification as a research area has received attention in most countries in the global North, whereas there is dearth of studies on studentification in Nigeria. Therefore, this paper aims to examine the effects of studentification on the residents of selected Nigerian communities. Design/methodology/approach The study adopted an exploratory research strategy. Semi-structured interviews were conducted to gather qualitative data from respondents, who were landlords and indigenous tenants of the host communities of two tertiary institutions. The data collected were analysed by means of the thematic analysis technique. Findings It became evident that studentification has some effects on the communities. Significant positive effects are business patronage and liveliness, while socio-economic-related factors, which include indecent clothing and theft, were noted as the most significant negative factors. Practical implications Implementing the outcomes of this study will contribute to promoting societal ethical values and economic prosperity of the communities. Originality/value The paper contributes to building the body of knowledge on the effect of studentification in the Nigerian context.

Professional trilemma of students with family business experience

Kybernetes ◽  
2016 ◽  
Vol 45 (3) ◽  
pp. 446-460 ◽  
Author(s):  
Jaka Vadnjal ◽  
Predrag Ljubotina
Keyword(s):  
Family Business ◽  
Design Methodology ◽  
Future Research ◽  
Related Factors ◽  
Senior Student ◽  
Content Type ◽  
East European ◽  
Educational Backgrounds ◽  
The Mean

Purpose – Family businesses represent the largest share of small-sized firms in majority of economies around the world. Having in mind the global economic situation this trend is expected to be continued. With the goal of better understanding of the process of transferring the business to the next generation, which ensures a long-term success, the purpose of this paper is to investigate expectations of student’s with family business background. Design/methodology/approach – The research addresses the issue of an individual’s perception of entrepreneurship and the related factors that influence individual’s decision on whether to build a career as an employee, become a successor of family business or start own business as an independent entrepreneur. The authors separately analyzed West European (data from another study), East European and Slovenian senior student population for the purpose of comparative study. Students were surveyed and binominal regression was used for statistics. Findings – The results show differences between investigated populations and positions Slovenian students in the mean. The authors anticipate that differences are caused by historical, cultural and educational backgrounds. This challenging area is raising a lot of sub-questions for possible future research. Originality/value – The value of the study is in the replication of the existing methodology from the benchmarking study and result comparison.

scholarly journals Albumin Enhances Caspofungin Activity against Aspergillus Species by Facilitating Drug Delivery to Germinating Hyphae

2015 ◽  
Vol 60 (3) ◽  
pp. 1226-1233 ◽  
Author(s):  
Petros Ioannou ◽  
Aggeliki Andrianaki ◽  
Tonia Akoumianaki ◽  
Irene Kyrmizi ◽  
Nathaniel Albert ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Cell Culture ◽  
Antifungal Agents ◽  
Fold Increase ◽  
Culture Conditions ◽  
The Other ◽  
Related Factors ◽  
Content Type

The modestin vitroactivity of echinocandins againstAspergillusimplies that host-related factors augment the action of these antifungal agentsin vivo. We found that, in contrast to the other antifungal agents (voriconazole, amphotericin B) tested, caspofungin exhibited a profound increase in activity against variousAspergillusspecies under conditions of cell culture growth, as evidenced by a ≥4-fold decrease in minimum effective concentrations (MECs) (P= 0. 0005). Importantly, the enhanced activity of caspofungin againstAspergillusspp. under cell culture conditions was strictly dependent on serum albumin and was not observed with the other two echinocandins, micafungin and anidulafungin. Of interest, fluorescently labeled albumin bound preferentially on the surface of germinatingAspergillushyphae, and this interaction was further enhanced upon treatment with caspofungin. In addition, supplementation of cell culture medium with albumin resulted in a significant, 5-fold increase in association of fluorescently labeled caspofungin withAspergillushyphae (P< 0.0001). Collectively, we found a novel synergistic interaction between albumin and caspofungin, with albumin acting as a potential carrier molecule to facilitate antifungal drug delivery toAspergillushyphae.

Complexities of learning organizations – addressing key methodological and content issues

2018 ◽  
Vol 25 (6) ◽  
pp. 443-454
Author(s):  
Nataša Rupčić
Keyword(s):  
Higher Education ◽  
Learning Environment ◽  
Learning Organizations ◽  
Middle Managers ◽  
Empirical Work ◽  
Project Work ◽  
Related Factors ◽  
Content Type ◽  
Learning Challenges

Purpose The purpose of this paper is to highlight challenges regarding methodological approach in studying learning organizations as well as the following content related issues: knowledge harvesting in project work, role of middle managers in creating energized learning environment, structuring individual activities to promote learning, impact of context-related factors (spaces of performance) and content-related factors (storytelling) on learning in higher education and diverging assessments of learning organizations with regard to hierarchy and organizational size. Design/methodology/approach Conclusions and models presented in the paper have been designed based on the systems perspective, critical thinking and critical review of previous contributions. Findings Findings refer to suggestions regarding further empirical work based on solid normative contributions in the field of learning organizations in general and its specific topics such as learning in project work, organizational design, role of middle managers, learning organization perceptions and learning challenges in higher education. Research limitations/implications Conclusions and models provided in the paper need further empirical testing and validation. Practical implications Implications for practitioners have been identified in terms of recommendations regarding possible methodological approaches in further studies of learning organizations, as well as regarding the following areas: knowledge creation cycle, structuring of individual activities to promote learning, role of middle managers in creating energized learning environment, learning challenges in higher education and divergent assessments of learning organizations regarding organizational hierarchy and size. Originality/value Contributions from previous authors have been systemically and critically reviewed, adapted models have been provided and suggestions for practitioners in this regard have been offered.

Major construction risk factors considered by general contractors in Qatar

2015 ◽  
Vol 13 (1) ◽  
pp. 165-194 ◽  
Author(s):  
Abdulaziz M. Jarkas ◽  
Theodore C. Haupt
Keyword(s):  
Risk Factors ◽  
Cost Effective ◽  
The State ◽  
Risk Allocation ◽  
Relative Importance ◽  
Related Factors ◽  
Policy Makers ◽  
Content Type ◽  
Construction Risk ◽  
General Contractors

Purpose – The purpose of this paper is to identify, explore, rank the relative importance and determine the prevalent allocation response trends of the major construction risk factors considered by general contractors operating in the State of Qatar. Design/methodology/approach – A structured questionnaire survey comprising 37 potential risk factors was distributed to a statistically representative sample of contractors. The influence ranks of the factors explored were determined using the “Relative Importance Index (RII)” technique, whereas the prevalent trend of contractors’ attitudes toward risk allocation of each factor investigated was quantified and expressed as a percentage, based on the number of respondents who selected a specific option, in relation to the total number of respondents. Findings – The results obtained indicate that risks related to the “client” group are perceived as most critical, followed by the “consultant”, “contractor” and “exogenous” group-related factors, respectively. The outcomes further show that the “transfer” option is the contractors’ prevalent response to “client” and “consultant”-related risks, while the “retention” decision is the principal pattern linked to “contractor” and “exogenous” group-related risk factors. Research limitations/implications – The dominant respondents’ perception that the crucial construction risks are related to clients and consultants suggests that these two parties have an essential role in controlling the negative ramifications of the associated factors. Practical implications – The findings suggest that increasing designers’ awareness of the significant effect of applying the constructability concept can considerably help reducing the risks concomitant of the construction operation. Policy makers may contribute, moreover, in alleviating the risk of incompetent technical staff and operatives’ employment by controlling the migration of inexperienced and unskilled construction workforce into the State. Originality/value – Given the knowledge gap for the major construction risk factors considered by general contractors in Qatar, the results reported in this study can provide clients, industry practitioners and policy makers with guidance to effectively manage the significant risks determined, which can further assist in achieving a reasonable level of competitiveness and cost-effective operation.

scholarly journals The prevalence and risk factors of musculoskeletal disorders among subcontracted hospital cleaners in Thailand

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Thanaphum Laithaisong ◽  
Wichai Aekplakorn ◽  
Paibul Suriyawongpaisal ◽  
Chanunporn Tupthai ◽  
Chathaya Wongrathanandha
Keyword(s):  
Risk Factors ◽  
Musculoskeletal Disorders ◽  
Teaching Hospital ◽  
Stress Test ◽  
Cross Sectional Study ◽  
Related Factors ◽  
Cross Sectional ◽  
Middle Income ◽  
Content Type ◽  
History Of

PurposeThis research aimed to explore the prevalence of musculoskeletal disorders (MSDs) and related factors among subcontracted cleaners in a teaching hospital in Thailand.Design/methodology/approachA cross-sectional study was conducted of 393 subcontracted cleaners in a teaching hospital, from May to June 2020. Face-to-face interviews were carried out using a standard questionnaire, consisting of four parts: (1) participant characteristics, (2) stress test, (3) work characteristics and (4) standardized Nordic questionnaire, Thai version, for MSDs outcome. Multiple logistic regression analyses were performed to determine the association between MSDs and related factors.FindingsThe prevalence of MSDs was 81.9%, involving mostly the lower back (57.7%), followed by the shoulder (52.6%). Factors significantly associated with MSDs were as follows: male gender (OR = 3.06, 95% CI [1.19, 7.87]), severe stress (OR = 2.72, 95% CI [1.13, 6.54]), history of injuries (OR = 4.37, 95% CI [1.27, 15.11]), mopping posture (OR = 2.81, 95% CI [1.43, 5.50]) and task duration (OR = 1.90, 95% CI [1.01, 3.57] for 2–4 h and OR = 3.39, 95% CI [1.17, 9.86] for more than 4 h). Sick leave due to MSDs was associated with history of injuries, Thai nationality and having another part-time job.Originality/valueThe study findings about MSDs in terms of prevalence and related factors contributed to limited pool of the knowledge among subcontracted hospital cleaners in Thailand and middle-income country settings. With growing popularity in outsourcing cleaning services among hospitals in these countries, the study findings could raise a concern and inform policymakers and hospital administrators the importance of the magnitude and risk factors for MSDs necessitating design of preventive strategies.

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