Volume 29, Issue 2

In recent years, several authors have studied personnel rotation. Each year, it is increasingly important to study this phenomenon. The objective of this investigation is to relate the rotation of the staff vs. the productivity of the company’s employees, “El Estragón ®.” This research is of a transversal quantitative type. A questionnaire was applied for the probability of personnel rotation, and compared with productivity indices. Within the qualification of the applied test, the variables are ordinal quantitative; however, for the average of calculated productivity, the variables were nominal quantitative. For the validation of this instrument, the Pearson p test was performed. In this validation, the authors ruled out that the questions were repeated or were misunderstood. The survey was applied to the 19 employees of the company, as mentioned above. In conclusion, a direct relationship was found between the variables Job Stability Feeling and Job Satisfaction; but it was not found that the rotation of personnel directly influences the productivity of the employees of this company.

The study examines the impact of digital marketing that includes social media marketing and content marketing on impulse buying tendency and impulse buying. The context of the study was e-commerceindustry in Indonesia and a questionnaire was developed with 208 respondents. The results confirm that social media marketing and content marketing partially do not affect both on impulse buying tendency and impulse buying. The results also reveal that social media marketing and content marketing simultaneously affecting impulse buying tendency. Hence, impulse buying affected by impulse buying tendency.

Background: Pneumonia severity index (PSI) dan CURB-65 were deemed as themes established and commonly used scoring systems in community-acquired pneumonia (CAP). Serum cortisol concentration has been reported to be associated with severity of CAP. This study was aimed to compare the serum cortisol level, CURB-65, and PSI scores on hospital admission to day 7 of treatment in CAP. Methods: This was an observational analytic cohort study. The study was conducted at Haji Adam Malik Medan public hospital. Analysis were done using paired-t test if the data were normally distributed, and Wilcoxon test if otherwise. Results: There were significant differences values on initial and day 7 of cortisol levels (23.12±8.57 μg/dL vs 13.74±2.64 μg/dL; p < 0.001), CURB-65 scores (3.25±0.67 vs 1.47±0.67; p

For solving the safety hazards and inspection safety problems in the long-term operation of cable tunnel transmission, on the investigation of the working environment and requirements, an arm-type cable tunnel inspection robot was designed. Making the kinematics analysis for this robot, a robot-to-barrier method is proposed and the obstacle path is planned. And then the kinematics and dynamics analysis of the climbing process were carried out, and calculate the theoretical value of the biggest obstacle that the robot can cross. By establishing a robot simulation model to simulate the climbing steps and climbing process of the robot. Finally, a variety of environmental experiments were conducted for the inspection robots, and demonstration applications were carried out in actual cable tunnels. The test and demonstration application results show that the robot has smooth and flexible movement, strong environmental adaptability, the ability for reliable communication and convenient operation so that it can meet the requirements of inspection operations.

We present a physico-chemical approach to modeling the evolution of the universe based on a theory that space consists of energy quanta that constitute the cosmic fluid. The universe started from a subatomic size volume of an ideal gas at very high temperature and pressure. Upon expansion and cooling, phase transitions occurred resulting in the formation of fundamental particles, and matter. These nucleate and grow into stars, galaxies, and clusters through gravity. From the cooling curve of the universe and its thermodynamic phase diagram we made a correlation between dark energy and the energy of space. Using Friedmann’s equations, our model fits well WMAP data on cosmic composition with an equation of state parameter,w=-0.7. The expansion of the universe is better attributed to Quintessence than to a cosmological constant. Dark Matter is identified as a plasma form of matter similar to that which existed during the photon epoch. The thermodynamics of expansion of the universe was adiabatic and decelerating for most its first 7 billion years; it became accelerating upon the dominance of Dark Energy. The behavior of the observable universe fits well our Quantum Space model for a closed system, with a negative pressure for Dark Energy and provides a mechanism for the accelerated expansion due to gravitational attraction. The model is simpler than the Standard Model of Cosmology; it avoids the problem of singularity and does not need a theory of Inflation. The ultimate fate of the universe appears to be a Big Freeze.

Background: Malaria remains a major health problem worldwide with 35% of the human population being at risk of becoming infected. Methods: In this study lipid profile (HDL, LDL, total cholesterol and triglycerides) were measured in 90 subjects with P. falciparum infection and 30 apparently healthy individuals as controls. Laboratory diagnosis of subjects was confirmed by Giemsa staining method for thick blood film and plasma lipid levels were assayed by colorimetric methods. Results: Triglyceride levels were significantly lower in the test subjects (0.73±0.32mmol/l) with P. falciparum than in the control subjects (1.33±0.52mmol/l). In contrast, the levels of LDL were significantly higher in test subjects (2.01±0.89mmol/l) with P. falciparum infection when compared with the control subjects (1.73±1.09mmol/l). Total cholesterol and HDL-cholesterol showed no statistically significant difference when test subjects were compared with the control. Conclusion: It was concluded from this study that P. falciparum infection induces significant changes in triglyceride and LDL-cholesterol level thereby supporting the hypothesis that P. falciparum infection affects lipid profile.

The CRISPR/Cas system’s discovery and execution offer great promise for the treatment of human illnesses and the revolutionization of plant breeding. Despite the fact that CRISPR/Cas system research is well advanced in the life sciences community, there are still considerable barriers to effective delivery that must be overcome before effective gene editing can be achieved. Consider characteristics like specificity, efficacy, and controlled expression while deciding on a plan. Due to the discovery of innovative delivery systems, many of the shortcomings of the CRISPR/Cas system’s translatability have been addressed. Because of the rapid growth of delivery mechanisms, a successful translation of CRISPR/Cas technology into medical and agricultural applications is vital, and substantial progress is predicted.

Academic Procrastination is a delay that is done to start and complete tasks related to academics. Particularly the problem of procrastination occurred at a student who studied guidance and counseling. This research aims to know is there any adversity quotient relations with academic procrastination. The method used is descriptive quantitative data analysis techniques using statistics analysis techniques, correlation formula product moment of pearson. The subject of the study amounted to 27 students. The conclusions of this writing is there’s a significant relationship between the adversity quotient with Academic Procrastination however, it is a negative relationship between the adversity quotient with the academic procrastination, the more high level of adversity quotient someone then procrastination will be getting lower. In contrast the lower the adversity quotient higher procrastination. The average score category adversity quotient high, score procrastination academic is medium.

The research focus on the design of an electric remote fan control (RFC) using android mobile phone. The fan automation system is divided into nine parts. 9V DC battery was used to power the Arduino board. Code was uploaded on microcontroller through the Arduino board using Arduino IDE. Proteus professional software was used to simulate the fan control circuit workability prior to soldering. A 5V, 10A DC relay was used. Trigger current for the relay was computed using Ohms law. A BC 337 transistor was used to boost the arduino current output order to trigger the relay. Limiting resistor was used to protect HC-05 bluetooth module. Multi meter was used to test against phase to neutral. Measuring tape was used to determined operational distance of the module. Locally fabricated metallic case was used to protect the designed module against mechanical damages. The existing fan without inbuilt remote facility was upgraded to use the developed RFC in this work to powered 130W fan and 100W light. Distance of operation is 15m maximum. The remote control using android phone can be used for control conveniency.

The distribution of stellar masses at the birth of stars is called the Initial Mass Function or IMF. Why does the IMF favour the production of low-mass stars? There is a clue in the report that most planetary systems seem to outweigh the protoplanetary disks (PPDs) in which they formed, suggesting there is more to planet formation than the build-up into increasing mass from collisions between the dust particles and rocks in the disk, and leaving astronomers to re-evaluate planet-formation theories. (Manara et al 2018) Science must always be free to question everything: even the long-established idea that mass is the cause of gravity – which, according to General Relativity (Einstein 1915), is the warping and curving of space-time. Exploration of the reverse, that gravity forms mass, sounds absurd to modern science. Yet, it has the potential to explain planet formation and the IMF. This inverse mass-gravity relation uses the well-accepted idea that the universe is described mathematically, being flexible enough to extend that notion and suggest the universe IS maths. It could be produced by binary digits (base-2 maths) and topology, and the gravity that is the warping of space-time could interact with electromagnetism to form the quantum spin of matter particles (½) via vector tensor-scalar geometry’s photonic spin of 1 being divided by the gravitonic spin of 2. This geometric attempt at understanding gravity may be seen as related to 4 earlier theories of gravity – Mordehai Milgrom’s 1983 Modified Newtonian Dynamics (MOND), its relativistic generalization known as Jacob Bekenstein’s 2004 Tensor–vector–scalar gravity (TeVeS), the TeVeS extension Bi-scalar tensor vector gravity (BSTV) proposed in 2005 by R.H.Sanders, and John Moffat’s 2006 Scalar–tensor–vector gravity (STVG). This work relates waves to the Complex Number Plane and Wick rotation – different phases rotate from the x-axis to the so-called “imaginary” y-axis where they can produce the extra mass of another large-scale dimension (so-called Dark Matter) as well as the mass’s associated Dark Energy.

The metamorphic rock buried hill have a large amount of reserves. Because its low permeability in the matrix most wells drilled in the field have to be fractured before production. It has large thickness of reservoirs massive hydraulic fracturing is difficult the cost is high. In this paper successful cases of volume fracturing technology applied to metamorphic buried hills were introduced. The results prove its feasibility by theoretical calculation and numerical simulation etc. Clustering perforation mode low viscosity and low friction fracturing fluids were used in combination. With high rate of fracturing fluids low proppant concentration the technology could realize maximum communication among the natural fractures greatly improving the overall permeability of the reservoirs and realizing the three dimensional treatment to the reservoirs. Down hole micro seismic fracture monitoring results indicate that the induced fracture volume increased by 28.8% compared with that in conventional fracturing. In addition average single well production increased by over 50% after fracturing with this technology compared with that by conventional fracturing of vertical wells from the same block. Since 2013，in addition average single well production increased by over 50% after fracturing with this technology compared with that by conventional fracturing of vertical wells from the same block.