Global

Bioaccumulation ability of the grass Chrysopogon aciculatus for the heavy metals cobalt (Co), manganese(Mn), copper(Cu), lead(Pb), chromium(Cr), cadmium(Cd), nickel(Ni), and zinc( Zn) was studied. Samples of soil and the grass (fresh) were collected from No. 1 Alu avenue off Ahmad Bello way, Nasarawa L. G. A. of Kano State, Nigeria. Collection was made in August to September, 2015. Samples of the grass collected were washed with tap water, carefully separated into roots and shoots, dried at room temperature to a constant weight and grounded. This was then digested using aqua-regia (HNO3 and HCl) in the ratio of 1:3 and analyzed for the said metals using AAS. The soil was equally treated using same reagent and analyzed for same metals.
Social media is rapidly changing the communication setting of today’s social world. The emergent of social media is significantly influencing the academic life of students. Institutions and academician are continually trying with social media technologies hoping to excite critical thinking skills, collaboration, and knowledge construction. Today social media has been accepted by higher institution making it a platform where students connect with their instructors, fellow students and other higher authorities across the board. This therefore called for the study to explore and examine how social media has impacted on students’ academic life. The study implored a qualitative approach in assessing these impacts. Ten (10) participants were conveniently sampled and interviewed with a period of two weeks. After studying the phenomena that were of interest to the study, and transcribing the various responses of the participants the results reveals that social media is widely used by students of higher institution and that participant are in support of the idea that social media contribute a significant quota to the development of their academic life.
Objective: This study aimed to correlate chronological and dental ages with skeletal maturity. Methods: A retrospective, descriptive study of the clinical files for 112 Sudanese patients, 7-16 years old. Skeletal maturity was assessed by using the cervical vertebral maturation stages. Dental age was determined by using the Demirjian method. Pearson’s coefficient was applied to measure the association between chronological and dental ages and Spearman rank correlation coefficient for the CS and dental calcification stages. Results: All correlations between cervical vertebral maturity and dental maturity stages were statistically significant (P < 0.05) in both genders. The mean chronologic age was 12.0533 ± 0.976 13.34 ± 1.66 years for female, male respectively. Conclusion: The first premolars in female and second premolar in male showed the highest relationship with CVM, which can apply as markers for skeletal maturity of a child whose looking for treatment.
Previously firms mainly based on financial performance to assess their progress. Thenceforth, maturity of logistic chain must be evaluated from a more comprehensive performance including, economic, environmental and social dimensions. As we know, each logistic chain is characterized by several best practices, so the purpose of this paper is to determine the sustainable performance of each one from these best practices. Aware that logistic chain performance should balance economic profitability with respect for natural environment and social performance, with objective to satisfy all stakeholders, the authors propose a mathematical approach to assess the performance. This mathematical approach was tested in a logistics chain of automobile industry.
Uterine receptivity needs to be synchronized with embryonic development, so the blastocyst stage of the embryo can implant. Leukemia Inhibitory Factor (LIF) is an essential factor for implantation, which is involved in the initiation of the window of implantation. However, the process by which the LIF signal pathway is transduced in the uterine luminal epithelium (LE) that leads to uterine receptivity is not completely elucidated. We tested the ability of cellular signaling inhibitors to disrupt uterine support of the embryo. Only Tyrphostin-AG490, an inhibitor of Jak2, can interfere with LIF signaling. Not only can AG490 reduce phosphorylated STAT3 levels in isolated LE, but it also ablated implantation when injected into uterine lumen. Furthermore, AG490 treatment in wild-type animals mimics the consequences of genetic ablation of LIF that results in free floating hatched embryos, which are unable to implant. Our results support the notion that Jak2 is the sole Janus kinase to mediate LIF activation in LE, and the signaling pathways of cytokines can serve as contraception targets.
Background: Dysmenorrhea is a common problem in women of reproductive age. Aim: The present study is aimed at assessing the prevalence of dysmenorrhea and its correlates in free living adult rural women of Chittoor District, Andhra Pradesh, India. Subjects and Methods: In this study 752 married rural women in the age range of 20 to 40 years are screened by employing multistage random sampling technique. Data on life styles, socioeconomic conditions, self reported health status and menstrual characteristics has been procured through pre-validated questionnaires. Results: Menstrual problems are noticed to an extent of 31.9% respectively (Primary dysmenorrhea: 29.9% and Menorrhagia: 2.1%). In the present sample 12% of the women are suffering from oligomenorrhea and 9% with hypermenorrhea. Multivariate (binary) logistic regression analysis have revealed that subjects with poor self rated health have 4.689 times the risk of developing dysmenorrhea.
The reality of the events that happen in Europe in the lathe to the Holy Grail, his quest and the enhancement of the religious heritage resources - both paintings, and churches and relics - show that, increasingly a more numerous group of non-believers want to know that other heritage reality. It is a fact that the Holy Grail admits different readings. This text aims to situate ourselves in the classical Greece and the dawn of the first century of Rome to discover those texts that already named kraters and sacred vessels. Where the metaphor was, to see them as the true force that has to guide human beings towards improved continuously. We only proposed this reflection as a starting point to a phase of the PhD who discover how from a relic guarded in the 21st century, we can go back up to thousands of years before Christ to find his own essence.
Despite the scarcity of autopsy case reports in the 19th century 3 of them are abridged in order to demonstrate that none was recognized as a primary lung cancer despite the striking presence of tumor in the lung. This is explicable on the basis of the striking phenomenon of selectivity of one or both adrenal glands during colonization. Therefore, it is concluded that recognizing such peculiar cases of adrenal selectivity among present-day patients will facilitate the treatment of this fell disease. In fact, recent positive papers on both surgery and radiotherapy are illustrative of this hopeful outlook.
The several observations and scientific evidence suggests that the Earth at present has a layered structure. But the question arises how the layered structure of Earth has taken the present shape from the early Earth which was a product of condensation from the solar nebular. The Solar System is presumed to have begun after one or more local supernova explosions about 4.6 Ga ago. The planetesimals began to attain the proportions of planetary embryo as a result of collisions between them. The heat generated from the collisions must have melted substantial amount of the early planet resulting in the formation of a global magma ocean and the denser, refractory material which could not melt sank inwards. This discussion aims at illucidating the driving forces and the processes within the Earth which resulted in the present layered structure of Earth.
The concern of this study is to explore Technical and Vocational Education as a panacea for Entrepreneurship growth and development in Nigeria. A descriptive research of the survey type was adopted and three research questions were raised in the study which were tested at 0.05 alpha level of significance, the population was made up of all Technical College students in Southwest Nigeria. 480 students partook in the study, stratified random sampling was adopted to select the subjects used. A structured questionnaire and a checklist developed by the researcher were used for data collection. The instruments used were subjected to face and content validation by relevant experts, a reliability coefficient of 0.84 was obtained using test-retest method and therefore found to be reliable, a reliability coefficient of 0.80 was however obtained for the checklist. Descriptive statistical method of frequency counts and simple percentages were employed in the analysis of data generated for the study. Some of the findings of the study are: that there are adequate technical colleges in southwest Nigeria; much of the available equipment in these technical colleges are either obsolete or dysfunctional; there is also a shortage of qualified and experienced teachers and instructors. It was therefore recommended that there should be provision of modern and state of the art equipment, while dysfunctional ones should be refurbished; that there should be immediate recruitment of well trained experienced teachers and instructors with the most relevant qualification; IT experts should also be recruited to assist the instructors in training students in various subjects taken and programmes offered.