scholarly journals Variability of morphological signs of populations Solidago Canadensis L. and Solidago Gigantea Ait. in different ecological conditions

2018 ◽  
Vol 28 (11) ◽  
pp. 60-63
Author(s):  
M. P. Olijnyk
Keyword(s):  
Local Population ◽  
Solidago Canadensis ◽  
Ecological Conditions ◽  
Local Populations ◽  
Edaphic Conditions ◽  
Study Results ◽  
Invasion Species ◽  
Number Of Leaves ◽  
High Level ◽  
Forestry Plantations

The anthropophytisation processes pose a real threat to the phytodiversity on the territory of Ukraine. To study the interpopulation variability and to analyze the factors leading to the excessive increase in quantity of the adventive species individuals in the conditions of anthropogenic transformation, we took as a model the invasion species on the territory of Ukraine: Solidago canadensis L. and Solidago gigantean Ait. According to the study of the morphological signs variability in local populations S. canadensis and S. gigantea in different ecological conditions, we have revealed that the morphometric signs (length of the ramet, number of leaves, length of inflorescences, number of flowers in the inflorescences) of the S. canadensis ramets are characterized by medium and high intrapopulations variability (V = 11.46-68.67 %), and S. gigantea ramets are characterized by insignificant and high levels of intrapopulation variability (V = 7.01-90.04 %), which correlates with unfavourable conditions of anthropogenically transformed habitats. According to the study results, we have discovered that the depressive vitality type, and, correspondingly, the low vitality level is common for the local populations of S. canadensis for ruderal biotopes of anthropogenic herb stands, ruderal biotopes of fallows on sand, highly artificial broadleaved deciduous forestry plantations and fruit and nut tree orchards. Such a vitality type of S. canadensis populations is probably explained by the high level of digression of the above-mentioned biotopes. The local population of the ruderalized thickets of bushes is characterized by the comparatively high value of the vitality index, which is due to the favorable edaphic conditions. On the other hand, the local populations of S. gigantea of ruderal biotopes of anthropogenic herb stands, ruderal biotopes of fallows on sand, highly artificial broadleaved deciduous forestry plantations, fruit and nut tree orchards and ruderalized thickets of bushes are characterized by a prosperous vitality type and, accordingly, a high level of vitality.

CRIMINOLOGICAL FEATURES OF CORRUPTION-RELATED CRIMES IN THE FUEL AND ENERGY COMPLEX

2020 ◽  
pp. 23-27
Author(s):  
Сергей Иванович Вележев ◽  
Антон Михайлович Седогин
Keyword(s):  
Legal Protection ◽  
Criminal Activity ◽  
Criminal Cases ◽  
Law Enforcement Agencies ◽  
Energy Complex ◽  
Significant Damage ◽  
Study Results ◽  
Wide Range ◽  
Illegal Activities ◽  
High Level

В представленной статье авторами рассматриваются вопросы уголовно-правовой охраны топливно-энергетического комплекса Российской Федерации от преступных проявлений, в том числе от коррупционной противоправной деятельности должностных лиц. Такие действия причиняют значительный ущерб нормальному функционированию предприятий топливно-энергетического комплекса. Авторами приводятся результаты исследования некоторых криминологических характеристик должностных лиц, совершивших преступления коррупционного характера. Дан анализ причин и условий, способствующих совершению вышеуказанных противоправных действий. Определена типовая модель преступника для данной категории преступлений и его характеристики: в первую очередь, это высокий уровень компетентности, специальное образование и т. д. Авторами отмечается высокий уровень латентной преступности в данной отрасли. Предложены некоторые пути профилактики данной категории правонарушений. Исследование проводилось на основе анализа конкретных уголовных дел, возбужденных следственными органами по результатам оперативно-розыскной деятельности правоохранительных органов. In the article the authors consider the issues of criminal and legal protection of the fuel and energy complex of the Russian Federation from criminal activity including corrupt illegal practices of officials. The authors cite the results of some criminological characteristics study of the fuel and energy complex staff committed corruption crimes. As a result of these illegal actions significant damage is caused to the normal functioning of the fuel and energy enterprises. Such officials` actions determine not only a wide range of other illegal activities, but also lead to public outcry and discredit the industry as a whole. The analysis of the reasons and conditions contributing to the above illegal actions commission is given. A typical model of a criminal for a given crime category and its characteristics are determined. First of all it is a high level competence, special education, etc. A high level of latent crime in this industry is shown. The study results are presented on the example of specific criminal cases initiated by the investigating authorities based on the results of the operation detection activities of law enforcement agencies. Some ways of preventing this category of offenses are proposed.

Aspects of the Relationships between the Community of Sheikh Abd al-Qurna and Ancient Egyptian Monuments

2020 ◽  
pp. 507-522
Author(s):  
Andrew Bednarski ◽  
Gemma Tully
Keyword(s):  
Social Action ◽  
Single Case ◽  
Local Population ◽  
Social Awareness ◽  
Single Case Study ◽  
Local Populations ◽  
Ancient Egyptian ◽  
Complex Relationships

Epigraphers and archaeologists working in Egypt must navigate a host of complex relationships both on and off site. This chapter explores the multifaceted nature of local Egyptian peoples’ relationships with nearby monuments through the lens of a single case study: the site of Sheikh Abd al-Qurna and its local population, the Qurnawi. Egyptologists have not traditionally sought to incorporate formally the stories and histories of local populations in their studies of pharaonic sites. An increasing blend of social awareness and the desire for social action on the part of both foreign professionals and local activists, however, is pushing Egyptologists to re-evaluate their practices, which, in turn, is moving the discipline in new and positive directions.

scholarly journals POPULATION GENETICS OF ALLOZYME VARIATION IN NEUROSPORA INTERMEDIA

Genetics ◽  
1975 ◽  
Vol 80 (4) ◽  
pp. 785-805
Author(s):  
P T Spieth
Keyword(s):  
Genetic Variation ◽  
Vegetative Reproduction ◽  
Vascular Plant ◽  
Natural Populations ◽  
Allozyme Variation ◽  
Regular Feature ◽  
Local Populations ◽  
Neurospora Intermedia ◽  
Pattern Of Variation ◽  
High Level

ABSTRACT Electrophoretically detectable variation in the fungus Neurospora intermedia has been surveyed among isolates from natural populations in Malaya, Papua, Australia and Florida. The principal result is a pattern of genetic variation within and between populations that is qualitatively no different than the well documented patterns for Drosophila and humans. In particular, there is a high level of genetic variation, the majority of which occurs at the level of local populations. Evidence is presented which argues that N. intermedia has a population structure analogous to that of an annual vascular plant with a high level of vegetative reproduction. Sexual reproduction appears to be a regular feature in the biology of the species. Substantial heterokaryon function seems unlikely in natural populations of N. intermedia. Theoretical considerations concerning the mechanisms underlying the observed pattern of variation most likely should be consistent with haploid selection theory. The implications of this constraint upon the theory are discussed in detail, leading to the presentation of a model based upon the concept of environmental heterogeneity. The essence of the model, which is equally applicable to haploid and diploid situations, is a shifting distribution of multiple adaptive niches among local populations such that a given population has a small net selective pressure in favor of one allele or another, depending upon its particular distribution of niches. Gene flow among neighboring populations with differing net selective pressures is postulated as the principal factor underlying intrapopulational allozyme variation.

scholarly journals Job Stress and Burnout among Social Workers in the VUCA World of COVID-19 Pandemic

2021 ◽  
Vol 13 (13) ◽  
pp. 7109
Author(s):  
Gabriela Dima ◽  
Luiza Meseșan Schmitz ◽  
Marinela-Cristina Șimon
Keyword(s):  
Social Workers ◽  
Job Stress ◽  
Job Demands ◽  
Stress Factors ◽  
Care Plan ◽  
Average Score ◽  
Supervisory Support ◽  
Work Related ◽  
Study Results ◽  
High Level

This paper aimed to explore the changes posed by the new COVID-19 pandemic to the field of social work and its impact on social workers in terms of job stress and burnout in Romania. Two conceptual models were used to frame the discussion: the theoretical framework of VUCA (volatility, uncertainty, complexity, and ambiguity) to discuss the challenges that the unprecedented context of the COVID-19 pandemic has created for social workers; and the Job Demands and Resources model (JD-R) to understand job demands perceived as stressors and burnout. Based on convergent mixed methods, the study sample consisted of 83 social workers employed in statutory and private social services in Romania, from different areas of intervention. Results showed that social workers perceived a high level of job stress related to work during the pandemic, which was associated with higher levels of burnout in the areas of personal burnout (average score 55.9) and work-related burnout (average score 52.5). Client-related burnout was lower (average score 38.4), indicating that stress was generated mainly by organisational factors and work-related factors (workload, aligning to new legislative rules and decisions, inconsistency, instability, ambiguity of managerial decisions, and lack of clarity of working procedures) and less by client-related stressors (lack of direct contact with clients, risk of contamination, managing beneficiaries’ fears, and difficulties related to technology). High job demands and limited job resources (managerial and supervisory support, financial resources, and recognition and reward) led to a high to very high level of work-related burnout for 15.7% and an upper-medium level for 44.2% of respondents. A group of 27.7% reported lower to medium levels of work-related burnout, while 14.5% had very low levels, managing to handle stress factors in a healthy manner. Study results pointed to the importance of organisational support and the development of a self-care plan that help to protect against job stress and burnout. Recommendations were made, putting forward the voice of fieldworkers and managers fostering initiatives and the application of sustainability-based measures and activities designed to deal with the challenges of the VUCA environment.

Users’ attitude on perceived security of enterprise systems mobility: an empirical study

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Ramaraj Palanisamy ◽  
Yang Wu
Keyword(s):  
Cloud Computing ◽  
Best Practices ◽  
Empirical Study ◽  
Mobile Systems ◽  
Mobile Technologies ◽  
Content Type ◽  
Security Issues ◽  
Study Results ◽  
Perceived Security ◽  
High Level

Purpose This study/ paper aims to empirically examine the user attitude on perceived security of enterprise systems (ES) mobility. Organizations are adopting mobile technologies for various business applications including ES to increase the flexibility and to gain sustainable competitive advantage. At the same time, end-users are exposed to security issues when using mobile technologies. The ES have seen breaches and malicious intrusions thereby more sophisticated recreational and commercial cybercrimes have been witnessed. ES have seen data breaches and malicious intrusions leading to more sophisticated cybercrimes. Considering the significance of security in ES mobility, the research questions in this study are: What are the security issues of ES mobility? What are the influences of users’ attitude towards those security issues? What is the impact of users’ attitude towards security issues on perceived security of ES mobility? Design/methodology/approach These questions are addressed by empirically testing a security model of mobile ES by collecting data from users of ES mobile systems. Hypotheses were evolved and tested by data collected through a survey questionnaire. The questionnaire survey was administered to 331 users from Chinese small and medium-sized enterprises (SME). The data was statistically analysed by tools such as correlation, factor analysis, regression and the study built a structural equation model (SEM) to examine the interactions between the variables. Findings The study results have identified the following security issues: users’ attitude towards mobile device security issues; users’ attitude towards wireless network security issues; users’ attitude towards cloud computing security issues; users’ attitude towards application-level security issues; users’ attitude towards data (access) level security issues; and users’ attitude towards enterprise-level security issues. Research limitations/implications The study results are based on a sample of users from Chinese SMEs. The findings may lack generalizability. Therefore, researchers are encouraged to examine the model in a different context. The issues requiring further investigation are the role of gender and type of device on perceived security of ES mobile systems. Practical implications The results show that the key security issues are related to a mobile device, wireless network, cloud computing, applications, data and enterprise. By understanding these issues and the best practices, organizations can maintain a high level of security of their mobile ES. Social implications Apart from understanding the best practices and the key issues, the authors suggest management and end-users to work collaboratively to achieve a high level of security of the mobile ES. Originality/value This is an empirical study conducted from the users’ perspective for validating the set of research hypotheses related to key security issues on the perceived security of mobile ES.

scholarly journals Pengaruh penambahan auxin terhadap pertunasan dan perakaran kopi arabika perbanyakan Somatic Embryogenesis (The effects of shooting and rooting of arabica coffee propagation through Embryogenesis Somatic auxin uses).

2012 ◽  
Vol 28 (2) ◽  
pp. 82-90
Author(s):  
Rina Arimarsetiowati ◽  
Fitria Ardiyani
Keyword(s):  
Leaf Area ◽  
Root Length ◽  
Combined Treatment ◽  
Stem Diameter ◽  
Arabica Coffee ◽  
Randomized Design ◽  
Half Strength ◽  
The Media ◽  
Number Of Leaves ◽  
High Level

Plantlet that has developed shoots and roots will have a high level adaptation in the field. The objective of this experiment was to improve the ability of planlet in shooting and rooting so that it is ready for acclimatization in the field. The increase ability in shooting and rooting of the planlet were conducted by adding various types of auxin in the media. The arabica coffee embryo of clone AS 2K which has entered the phase of the cotyledons was transfered into the treatment media containing half-strength of MS (Murashige & Skoog) macro and micro nutrient, vitamin B5, 30 g/L glucose, 100 ml/L coconut water, 50 mg/L AgNO3 added with the combination of IAA, IBA and NAA. The research was conducted by using completely randomized design with seven combined treatment i.e. 0.1 mg/L IBA, 0.1 mg/L NAA, 0.1 mg/L IAA; 0 , 1 mg/L IBA + 0.1 mg/L NAA, 0.1 mg/L IBA + 0.1 mg/L IAA, 0.1 mg/L NAA + 0.1 mg/L IAA; without auxin. There were 12 replications in every treatment and each replication consisted of five cotyledonary embryos. The parameters of observation were the root length, leaf number, leaf area, stem diameter, and height of plantlets. The observations were conducted in eighth weeks after cotyledonary embryo had shoots. The results showed that in the number of leaves and height of planlet parameters, the treatment without auxin was the best result compared to planlet with auxin addition. The addition of auxin varians and their combination did not significantly influent leaf area, root length and stem diameter parameters. The medium tested was optimum for the growth of shoots and roots of AS 2K arabica coffee.

scholarly journals Effect of Grafting Dates, Methods on Success and Growth of Mandarin (Citrus reticulata Blanco) Sapling

2013 ◽  
Vol 14 (1) ◽  
pp. 23-30
Author(s):  
B Chalise ◽  
DR Baral ◽  
DM Gautam ◽  
RB Thapa
Keyword(s):  
Research Program ◽  
Effect Study ◽  
Citrus Reticulata ◽  
Trifoliate Orange ◽  
Plastic Sheet ◽  
Study Results ◽  
Number Of Leaves ◽  
One Year ◽  
Experimental Plots ◽  
Plot Design

A field experiment was conducted at National Citrus Research Program (NCRP), Paripatle, Dhankuta to standardize the time and method of grafting and to assess the success and growth of mandarin saplings. Scions taken from ‘Khoku Local’ mandarin were grafted onto one-year-old trifoliate orange seedling rootstocks by shoot tip and veneer methods in eight different dates starting from 29th October, 2009 to 12th February, 2010 at 15 days interval. The grafts were planted inside closed tunnel of jute and plastic sheet at 10×10 cm spacing in 50×60 cm2 experimental plots in two factorial split-plot design with three replications per treatment, containing 30 grafts per plot. The grafting methods were allotted on main-plots and the dates on sub-plots randomly. The success and growth of sapling was significantly affected by the dates while the methods had no effect. Study results showed that the highest success (96.11 %) was found on 13th January, followed by 28th January (91.11%) and the least (51.67%) on 29th October grafting. The mortality of sprouted grafts was the lowest (0.17%) in 29th December grafting, while it was observed higher in earlier and late season grafting. Observation on growth taken at 180 days after grafting in successful grafts showed that 29th October had the highest number of primary branches (2.2); 14th November had the highest number of leaves (48.47) and secondary branches (2.505); 29th December gave the maximum sapling height (32.86 cm); 13th January produced the lowest number of leaves (21.93) per sapling and 28th January produced the lowest number of primary (1.533) and secondary branches (1.172) per sapling. From the study it was revealed that in Dhankuta, the most appropriate time of grafting was 2nd to 4th week of January. Nepal Journal of Science and Technology Vol. 14, No. 1 (2013) 23-30 DOI: http://dx.doi.org/10.3126/njst.v14i1.8873

scholarly journals The Academic Freedom among the Students at the Hashemite University: الحرية الأكاديمية لدى طلبة الجامعة الهاشمية

2020 ◽  
Vol 4 (30) ◽  
Author(s):  
Abd AlKhaleq Muhammad Al-Zyoud
Keyword(s):  
Academic Freedom ◽  
Undergraduate Students ◽  
First Semester ◽  
Academic Level ◽  
Study Results ◽  
High Level ◽  
The University ◽  
Hashemite University ◽  
Senior Students ◽  
Academic Year

This study aimed at exploring the level of academic freedom at the Hashemite University in Jordan from the perspective of the undergraduate students, and whether there are impacts of the students’ gender, academic level, or specialization. The sample consisted of (376) undergraduate students (111 male, 265 female), who are registered at the university for the first semester of the academic year 2019/2020, from all faculties of the Hashemite University. The results showed that 25.5% of participants perceived a high level of academic freedom, 57.2% of participants perceived a moderate level, and 17.3% of them perceived a low level. Significant differences were found due to academic level; academic freedom perceived level among senior students was higher than all other years (freshmen, sophomores and juniors), but no significant differences were found due to students’ gender, or specialization. In light of the study results, the researcher recommends a number of recommendations such as: raising the awareness about the academic freedom among the students, faculty members, and the staff the Jordanian universities, conducting survey studies that measure the level of academic freedom among the students at various Jordanian universities, Supporting the academic freedom of the students at the institutions of higher education through deliberate and planned initiatives.

scholarly journals Social Anxiety in Relation to Self-Esteem among University Students in Jordan

2020 ◽  
Vol 13 (2) ◽  
pp. 96
Author(s):  
Odeh Suleiman Murad
Keyword(s):  
Social Anxiety ◽  
University Students ◽  
Negative Correlation ◽  
Significant Negative Correlation ◽  
Self Esteem ◽  
Personal Traits ◽  
Study Results ◽  
High Level ◽  
The Relationship ◽  
Academic Year

People with social anxiety demonstrate different behavioral aspects such as nervousness, apprehension, fear, and concern that negatively affect their personal traits and self-esteem. The current study is designed to identify the relationship between social anxiety and self-esteem among university students. To achieve this purpose, the descriptive correlation approach was utilized. Social anxiety and self-esteem scales were applied to a sample of 334 university students in Jordan. The study results revealed a low level of social anxiety and a high level of self-esteem among participants. In addition, there was a statistically significant negative correlation between the level of social anxiety and self-esteem among participants. The study recommended holding workshops and seminars for fresh students at the beginning of each academic year, to alleviate their feeling of stress and social anxiety and to raise the level of their self-esteem.

scholarly journals STEM education and outcomes in Vietnam: Views from the social gap and gender issues

2020 ◽  
Author(s):  
Quan-Hoang Vuong ◽  
Thanh-Hang Pham ◽  
Trung Tran ◽  
Thu-Trang Vuong ◽  
Nguyen Manh Cuong ◽  
...  
Keyword(s):  
High School Students ◽  
Rural Area ◽  
Stem Education ◽  
Junior High School ◽  
Transition Economy ◽  
Economic Status ◽  
School Students ◽  
Academic Achievements ◽  
Study Results ◽  
High Level

United Nations’ Sustainable Development Goals 4 Quality Education has highlighted major challenges for all nations to ensure inclusive and equitable quality access to education, facilities for children, and young adults. The SDG4 is even more important for developing nations as receiving proper education or vocational training, especially in science and technology, means a foundational step in improving other aspects of their citizens’ lives. However, the extant scientific literature about STEM education still lacks focus on developing countries, even more so in the rural area. Using a dataset of 4967 observations of junior high school students from a rural area in a transition economy, the article employs the Bayesian approach to identify the interaction between gender, socioeconomic status, and students’ STEM academic achievements. The results report gender has little association with STEM academic achievements; however, female students (αa_Sex[2] = 2.83) appear to have achieved better results than their male counterparts (αa_Sex[1] = 2.68). Families with better economic status, parents with a high level of education (βb(EduMot) = 0.07), or non-manual jobs (αa_SexPJ[4] = 3.25) are found to be correlated with better study results. On the contrary, students with zero (βb(OnlyChi) = -0.14) or more than two siblings (βb(NumberofChi) = -0.01) are correlated with lower study results compared to those with only one sibling. These results imply the importance of providing women with opportunities for better education. Policymakers should also consider maintaining family size so the parents can provide their resources to each child equally.

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