Miracle-dz/UniFAR-FTUs huggingface dataset:
EFFECT OF MEDITATION ON MENTAL HEALTH- A SYSTEMATIC LITERATURE REVIEW

Meditation is increasingly being practiced as a therapeutic technique. It is a practice where an individual uses mindfulness, focusing on a particular object or thing, feeling or thought to train themselves and increase the self-awareness to achieve calm and a clear mind to attain a stable state. Effects of meditation have generally been positiveits estimated that 200â€“500 million people meditate worldwide. Over 14% of Americans have meditated at least once. Meditation also increased lately and the number of people practising has increased rapidly. There have been several articles, researches and books which have been released. Meditation will help the individual change attitude towards life, and provide peace of mind and happiness. It helps to achieve a better understanding of themselves as well as others. This review focuses on studying and understanding the negative and positive effects of meditation on mental health and how meditation helps in reducing anxiety. It focuses on pros and cons of meditation as well. Meditation depends on individuals and each one of them has a different experience. People have experienced both pleasant and unpleasant experiences.
PCB-Embedded Antenna for 80 GHz Chip-to-Chip Communication

We propose a printed circuit board (PCB)-embedded antenna for millimeter-wave chip-to-chip communication. The antenna is 0.18 mm in height which is 1/20 wavelength at 80 GHz. In order to realize such a low profile, a zeroth-order resonator antenna with a periodic array of four unit cells is employed, and its geometry is optimized to cover an 8-GHz bandwidth from 76 to 84 GHz. With this, the antenna is capable of radiating in a direction parallel to the board length despite the short distance between the ground and the radiator. Simulation and measurement results show that the optimized design has low reflection coefficients and consistent radiation patterns throughout the target bandwidth.
General Aviation Leveloff, Roundout, and Accident Rate Analysis

Transitioning the aircraft from the approach attitude to the landing attitude is one of the first obstacles that confronts student pilots. This visually guided procedure is known as the landing flare but is poorly understood and underreported. To stimulate interest in and accentuate the importance of the landing flare, in this study, we analyzed 6,655 National Transportation Safety Board accident reports and surveyed 92 aviators in two Part 141 flight schools. The results show that flare accidents accounted for 17.88% of landing accidents, that the landing flare was equated with the roundout, and that the procedures used to round out the aircraft were obscure. Practical recommendations are provided for future studies and flight training instruction.
Microstrip antennas design based in periodic and quasiperiodic PBG symmetries

In this article, the effect on radiation properties in a microstrip antenna through the use of different symmetries applied to structures based on photonic band gap is analyzed. The result obtained from computational simulation and measures of the constructed antennas shows a direct influence on the return loss. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:2914–2917, 2015
Platelet-to-Neutrophil Ratio is Related to Hemorrhagic Transformation in Patients With Acute Cerebral Infarction

Background: As a common complication of cerebral infarction, hemorrhagic transformation (HT) often indicates a worse clinical outcome. The aim of this study was to explore the relationship between the platelet-to-neutrophil ratio (PNR) and HT in patients with acute cerebral infarction. Methods: Patients with HT after acute cerebral infarction were enrolled in the HT group. Matched patients with acute cerebral infarction without HT were enrolled at the same time. All patients included in this study did not receive reperfusion therapy. The PNR was obtained on the second day of admission. Multivariate logistic analysis was used to evaluate the relationship between the PNR and HT. Results: We collected data from a total of 137 patients: 61 patients with HT and 76 patients without HT. After adjusting for confounders, the PNR was independently associated with HT (odds ratio=0.922, 95% confidence interval: 0.891-0.955, P<0.05). The receiver operating characteristic curve demonstrated that the PNR could better predict HT (area under the curve=0.808, 95% confidence interval: 0.735-0.882, P<0.05). When the cut-off value of the PNR was 50.4765, the sensitivity was 70.5%, and the specificity was 82.9%. After stratifying the PNR to 50.4765, logistic analysis was performed again. The risk of HT in patients with a low PNR was 12.995 times that of patients with a high PNR. In patients without atrial fibrillation, the PNR was still independently related to HT. Conclusions: The PNR is a predictor of HT, and patients with a low PNR have a higher risk of HT.
New Symmetries, Conserved Quantities and Gauge Nature of a Free Dirac Field

We present and amplify some of our previous statements on non-canonical interrelations between the solutions to free Dirac equation (DE) and Klein–Gordon equation (KGE). We demonstrate that all the solutions to the DE (possessing point- or string-like singularities) can be obtained via differentiation of a corresponding pair of the KGE solutions for a doublet of scalar fields. In this way, we obtain a “spinor analogue” of the mesonic Yukawa potential and previously unknown chains of solutions to DE and KGE, as well as an exceptional solution to the KGE and DE with a finite value of the field charge (“localized” de Broglie wave). The pair of scalar “potentials” is defined up to a gauge transformation under which corresponding solution of the DE remains invariant. Under transformations of Lorentz group, canonical spinor transformations form only a subclass of a more general class of transformations of the solutions to DE upon which the generating scalar potentials undergo transformations of internal symmetry intermixing their components. Under continuous turn by one complete revolution the transforming solutions, as a rule, return back to their initial values (“spinor two-valuedness” is absent). With an arbitrary solution of the DE, one can associate, apart from the standard one, a non-canonical set of conserved quantities, positive definite “energy” density among them, and with any KGE solution-positive definite “probability density”, etc. Finally, we discuss a generalization of the proposed procedure to the case when the external electromagnetic field is present.
S/390 cost performance considerations for MCM packaging choices

In this paper, we develop a cost performance metric for the comparison of MCM structures used for the packaging of the central electronic complex (CEC) of the S/390 systems. The approach is simple and general enough that it can be used to evaluate any first level package structure. The cost component is based on relative costs for the structures examined, while the performance is estimated through closed form formulae and simulation data of actual products. The results of this comparison show that a glass ceramic MCM with polyimide redistribution is the package of choice for bus frequencies larger than 160 MHz. For bus frequencies less than 160 MHz, all alternatives examined are cost performance equivalent and the choice should be based on other criteria that are application specific.
Cardiac Arrest in Pigs With 48 hours of Post‐Resuscitation Care Induced by 2 Methods of Myocardial Infarction: A Methodological Description

Background Systematic reviews have disclosed a lack of clinically relevant cardiac arrest animal models. The aim of this study was to develop a cardiac arrest model in pigs encompassing relevant cardiac arrest characteristics and clinically relevant post‐resuscitation care. Methods and Results We used 2 methods of myocardial infarction in conjunction with cardiac arrest. One group (n=7) had a continuous coronary occlusion, while another group (n=11) underwent balloon‐deflation during arrest and resuscitation with re‐inflation after return of spontaneous circulation. A sham group was included (n=6). All groups underwent 48 hours of intensive care including 24 hours of targeted temperature management. Pigs underwent invasive hemodynamic monitoring. Left ventricular function was assessed by pressure‐volume measurements. The proportion of pigs with return of spontaneous circulation was 43% in the continuous infarction group and 64% in the deflation‐reinflation group. In the continuous infarction group 29% survived the entire protocol while 55% survived in the deflation‐reinflation group. Both cardiac arrest groups needed vasopressor and inotropic support and pressure‐volume measurements showed cardiac dysfunction. During rewarming, systemic vascular resistance decreased in both cardiac arrest groups. Median [25%;75%] troponin‐I 48 hours after return of spontaneous circulation, was 88 973 ng/L [53 124;99 740] in the continuous infarction group, 19 661 ng/L [10 871;23 209] in the deflation‐reinflation group, and 1973 ng/L [1117;1995] in the sham group. Conclusions This article describes a cardiac arrest pig model with myocardial infarction, targeted temperature management, and clinically relevant post‐cardiac arrest care. We demonstrate 2 methods of inducing myocardial ischemia with cardiac arrest resulting in post‐cardiac arrest organ injury including cardiac dysfunction and cerebral injury.
The Impact of Education on the Use of ICT by Small and Medium Scale Entrepreneurs in Zaria and Kaduna.

This paper presents the impact of education on the use of ICT facilities by SMEs in Zaria and Kaduna. With the aid of response data acquired using questionnaire aided by simple percentages statistics, the distributions of the entrepreneurs’ responses were analyzed. Chi-square distribution at 0.05 significant level was also used to test the hypothetical statement. Results showed that most entrepreneurs in Zaria and Kaduna are secondary school leavers, and a majority of them use GSM for business transactions and less of the internet. The results of the hypothesis test show that there is no significant difference between Zaria and Kaduna in the availability of ICT facilities to the business entrepreneurs. Also, there is no significant difference in the availability of ICT facilities between entrepreneurs of various levels of educational qualifications in Zaria and Kaduna.
Nano-La2O3 Induces Honeybee (Apis mellifera) Death and Enriches for Pathogens in Honeybee Gut Bacterial Communities

Honeybees (Apis mellifera) can be exposed via numerous potential pathways to ambient nanoparticles (NPs), including rare earth oxide (REO) NPs that are increasingly used and released into the environment. Gut microorganisms are pivotal in mediating honeybee health, but how REO NPs may affect honeybee health and gut microbiota remains poorly understood. To address this knowledge gap, honeybees were fed pollen and sucrose syrup containing 0, 1, 10, 100, and 1000mgkg−1 of nano-La2O3 for 12days. Nano-La2O3 exerted detrimental effects on honeybee physiology, as reflected by dose-dependent adverse effects of nano-La2O3 on survival, pollen consumption, and body weight (p<0.05). Nano-La2O3 caused the dysbiosis of honeybee gut bacterial communities, as evidenced by the change of gut bacterial community composition, the enrichment of pathogenic Serratia and Frischella, and the alteration of digestion-related taxa Bombella (p<0.05). There were significant correlations between honeybee physiological parameters and the relative abundances of pathogenic Serratia and Frischella (p<0.05), underscoring linkages between honeybee health and gut bacterial communities. Taken together, this study demonstrates that nano-La2O3 can cause detrimental effects on honeybee health, potentially by disordering gut bacterial communities. This study thus reveals a previously overlooked effect of nano-La2O3 on the ecologically and economically important honeybee species Apis mellifera.
Frequency Analysis of Extreme Events and Developing Intensity Duration Frequency Curves: The Case of Jimma Town, Ethiopia

Frequency analysis of rainfall data enables to determine the future extreme events and developing IDF curves. The object of this study was to analysis the frequency of extreme events in precipitation, and develop Intensity, duration and frequency (IDF) curves. In this study 30 years daily rainfall data (1986-2015) from the National Meteorological Agency (NMA) was used. To develop IDF curves graphical and statistical methods were used. The result obtained indicates, the General Extreme Value (GEV) was the best fitted distribution function to the maximum annual daily observed data, at 95% of confidence interval. As the result of the computed sub daily rainfall data, the highest rainfall value for the duration of 24 hrs. and 100-year return period was 83.86 mm, whereas the lowest rainfall value was obtained for the duration of 10min and 2 year of return period was 13.34 mm. The correlation coefficient between the IDF curves developed from observed data and the Computed IDF curves was (R 2 =0.99).
Addition of Reduced Glutathione (GSH) to Freezing Medium Reduces Intracellular ROS Levels in Donkey Sperm

In donkeys, the use of frozen-thawed sperm for artificial insemination (AI) leads to low fertility rates. Furthermore, donkey sperm produce a large amount of reactive oxygen species (ROS), and post-AI inflammation induces the formation of neutrophil extracellular traps (NETosis), which further generates many more ROS. These high ROS levels may induce lipid peroxidation in the sperm plasma membrane, thus affecting its integrity. Enzymatic and non-enzymatic antioxidants, mainly found in the seminal plasma (SP), are responsible for maintaining the redox balance. However, this fluid is removed prior to cryopreservation, thereby exposing sperm cells to further oxidative stress. The exogenous addition of antioxidants to the freezing medium can reduce the detrimental effects caused by ROS generation. Therefore, the aim of this study was to evaluate how the addition of different reduced glutathione (GSH) concentrations (control, 2 mM, 4 mM, 6 mM, 8 mM, and 10 mM) to fresh sperm affect their cryotolerance. Total and progressive motility, kinematic parameters and motile sperm subpopulations were significantly (p < 0.05) different from the control in treatments containing 8 mM and 10 mM GSH, but not at lower concentrations. Plasma and acrosome membrane integrity, mitochondrial membrane potential (MMP) and intracellular superoxide levels (O2−) were not affected (p > 0.05) by any GSH concentration. Interestingly, however, the addition of 8 mM or 10 mM GSH reduced (p < 0.05) the percentages of viable sperm with high overall ROS levels compared to the control. In conclusion, frozen-thawed donkey sperm are able to tolerate high GSH concentrations, which differs from what has been observed in other species. This antioxidant capacity suggests that ROS could be important during post-AI and that the impact of using exogenous antioxidants like GSH to improve the sperm resilience to freeze-thawing is limited in this species.
A Comparative Second Law Analysis of Microchannel Evaporator with R-134A & R-22

In paper second law analysis is applied to study the thermodynamic losses caused by heat transfer between finite temperature difference, and pressure drop for the fluid inside microchannel evaporator which is employed for power electronics cooling. A general expression for second law efficiency is obtained by considering control volume around microchannel evaporator. The cons ervation equation for mass and energy along with entropy balance are applied in microchannel. Inside the microchannel analytical/empirical correlations are used for friction factor, inlet and exit losses. With the help of expression a comparative study is performed with two different refrigerants viz. R-134A and R-22 on different designs of microchannels to obtain the best design. A parametric study is also performed to show the effects of different parameters on the overall performance of microchannel evaporator.this
Joint time difference of arrival/angle of arrival position finding in passive radar

Several target position finding methods are proposed in various papers mainly regarding sensor networks. However, the problem of position finding in passive radar systems is somewhat different from the general case of sensor networks. Generally, in a passive radar system, there are few receivers located at short distances when compared with the it distance from the target. In this case, a problem known as geometric dilution of precision (GDP) occurs, which considerably increases the error of many proposed methods. This phenomenon can even make the position finding equations non-solvable. Regarding this fact, we have developed a least mean square error (LMSE) based method, which uses both the angle of arrival (AOA) and time difference of arrival (TDOA) measurements to estimate almost precisely the position of very distant targets in a passive radar system. A simple equation is derived here to compare the TDOA and AOA accuracies. Then, it is shown that whenever the accuracies of these two measurements are comparable, the proposed method estimates the target position more precisely than the conventional AOA-only and TDOA-only methods. It also avoids the non-convergence behaviour encountered in TDOA-only methods.
Precision adiabatic scanning calorimetry of a nematic – ferroelectric nematic phase transition

ABSTRACT In high-resolution adiabatic scanning calorimetry (ASC) experiments, data for the temperature dependence of the specific enthalpy, h(T), and of the specific heat capacity, cp (T), are simultaneously obtained, from which the order of the phase transition and critical behaviour can be evaluated. ASC was applied to study the nematic to ferroelectric nematic phase transition (N–NF) in the liquid crystal molecule 4-[(4-nitrophenoxy)carbonyl]phenyl 2,4-dimethoxybenzoate (RM734). The N–NF was found to be very weakly first order with a latent heat Δh = 0.115 ± 0.005 J/g. The pretransitional specific heat capacity behaviour is substantially larger in the high-temperature N phase than in the low-temperature NF phase. In both phases the power-law analysis of cp (T) resulted in a critical exponent α = 0.50 ± 0.05 and amplitude ratio A NF/A N = 0.42 ± 0.03. The very small latent heat and the value of α indicate that the N–NF transition is close to a tricritical point. This is confirmed by a value of the order parameter exponent β ≈ 0.25, recently obtained from electric polarisation measurements. Invoking two-scale-factor universality, it follows from the low value of A NF/A N ratio that the size of the critical fluctuations is much larger in the NF phase than in the N phase. Graphical Abstract
Linguistic Human Rights of Minorities and Language Policy: A Case Study of Balochi Language in Education in Lyari, Karachi, Pakistan

Most of the neo-colonial nation-states in South America, Africa and Asia have historically remained multilingual. Particularly, subcontinent, being the part of Indus Civilization, successfully maintained the legacy of religious and cultural diversity. Pre-colonial lingo-cultural diversity in subcontinent was discouraged and displaced by new linguistic hierarchy during colonial times. In the milieu of WW-II and national liberation movements throughout the world, classical colonial structure was largely weakened at global level and paved the way for internal colonialism. Political leadership of newly formed multiethnic states principally preferred to govern their people as colonial subjects rather than free citizens. European model of ‘one language, one culture and one state’ has hitherto resulted in many ethno-linguistic movements in different neo-colonial states. Neo-colonial forms of knowledge, categories and instruments of oppression; particularly language policy; is still prevailing in such (in)dependent states where Pakistan is not an exception. Since 1947, language policy in Pakistan has been mainly shaped by and still continues to be overshadowed by its colonial past. This article critically investigates promise(s) and practice(s) of national language policy and the status of linguistic human rights of minorities in education in Lyari, Karachi, Pakistan. The data was collected from various (inter)national public policy documents/declarations along with semi-structured interviews from four different groups of participants i.e. academics, cultural activists, teachers and parents. Findings reveal two diametrically opposed orientations in terms of the use of mother tongue in classroom. School teachers stridently advocated assimilationist language ideology and viewed multilingualism in classroom as a problem to be solved, whereas, cultural activists and academics consider the same as a cultural resource to be properly utilized and the right of the child to be respected. Parents’ views are also considered in order to explore the tension between the language of schooling and the language of early socialization of children at home. Moreover, Language Rights model is applied in order to explore (re)production of linguistic injustice through language policy in education. societies that developed on their territories, consider themselves distinct from other sectors of the societies now prevailing in those territories, or parts of them. They form at present non-dominant sectors of society and are determined to preserve, develop, and transmit to future generations their ancestral territories and their ethnic identity, as the basis of their continued existence as peoples, in accordance with their own cultural patterns, social institutions, and legal systems’ (James et al., 2015, p.40).
Impact of labour turnover on organizational effectiveness in selected industries in Lagos State, Nigeria

This study investigated the impact of labour turnover on organizational effectiveness in selected industries in Lagos State, Nigeria. This was with the view to determining the appropriate management strategies through which the problem of labour turnover could be reduced to the nearest minimum in work organizations in Nigeria. The survey research method was adopted for the study. A total of 640 respondents were selected for the study using proportionate stratified sampling technique. The major instruments used for the study were questionnaire and interview schedule. The reliability coefficient of 0.84 was obtained for the research instrument. The four hypotheses generated for the study were tested using chi-square and linear regression analysis statistical methods at 0.05 alpha levels. The findings of the study reveals that there was a significant relationship between labour turnover and organizational effectiveness. Also, a significant relationship was found dissatisfaction and labour turnover. There was a main effect of interaction of occupational variables and labour turnover on organizational effectiveness. Finally, a positive significant relationship was found among career mobility, labour turnover and organizational effectiveness. Based on the findings of the study, it is recommended that the working environment of the workers need to be improved upon in order to reduce the alarming rate of labour turnover that impact organizational effectiveness. Also, career development and promotion opportunities have become a rare phenomenon in most of the organisations, individuals who feel their contributions go unrewarded often feel undervalued which can lead to dissatisfaction and virtually an increase of unwarranted turnover. p>