Microdosing of Psychoactive Substances in Business Practice

Abusing psychoactive substances has been a popular sport in the business world since the mid-19th century. First, they were appreciated for their stimulating or tonic effects, but later with psychedelics on the scene, their importance in subculture matured. In the last decade, it has become very popular to use LSD and cocaine in subtle doses, which provides users with a high that is enough to feel their psychoactive potential, but not as high that significant behavioral changes can be seen. Unlike regular use, microdosing is usually sufficient to affect a few without undue finish and withdrawal symptoms. It allows for abuse in the regular mode of the working week with a rest phase on the weekend. The diametric difference between the abuse of standard dosing and micro-dosing is also in the decreasing tolerance of the organism. Over time, an organism permanently exposed to microdosing of stimulants is sufficient to achieve a gradually decreasing dose effect that psychedelics develop resistance to. Case studies of such prolonged use were described and analyzed to show the role of microdosing in the creative world and for business managers. Initial field research, funded by the Newton University internal grant, focused on contamination mapping in office spaces for employees in target positions. Further research continues on the investigation of microdosing in conditions of corporate reality.

Development of technological line for obtaining flax trust

One of the most effective ways to intensify heat transfer when blowing surfaces with air is jet blowing. High intensity of transfer processes during jetting, relatively low energy costs for its implementation, simplicity and flexibility of control of this process have led to its widespread use in various fields. Mathematical modeling of heat transfer regularities in systems of impact jets is significantly complicated due to the three-dimensional nature of the flue-channel flow near the surfaces of complex shape. Therefore, it is advisable to use experimental research methods. The purpose of this study is to justify the use of the method of regular thermal regime to determine the average heat transfer coefficient during jet cooling of the surface. Regular mode of cooling (heating) of bodies is characterized by the fact that the relative rate of change of excess temperature for all points of the body remains constant. Since the thermal model was made of a highly thermally conductive duralumin alloy, the condition Bi <0.1 was met, when the average temperatures on the surface and volume will be the same. Therefore, the experiments recorded the readings of only one thermocouple. To compare the results of this experimental study with the results of other authors, cases of blowing a smooth concave surface with single - and three - row jet systems were chosen. The first case was studied in [3,4], the second - in [5]. The results of the performed test experiments agree satisfactorily with the data of these works, which were obtained both by the method of regular mode [5] and other methods of recording heat fluxes ([3] - passive heat flux sensor; [4] - electrocalorimetry). The difference between the average heat transfer coefficients and the known literature data does not exceed ±7..12%, which indicates a sufficient probability of the results obtained in this work, and the possibility of using the method of regular thermal regime in the study of jet cooling of complex bodies. Key words: heat exchange, jet system, cooling, concave surface

Justification of the parameter that determines the ability of turbochargers of agricultural machinery engines to function

As a result of the analysis of statistics on the main failures of the turbocharger of tractor engines in agricultural production, it can be concluded that it is the condition of its bearing node, in the first place, determines the performance of the entire turbocharger. This ultimately affects the duration of the turbocharger rotor after the engine stops. The article considers the method of determining the rotation time of the turbocharger rotor by inertia depending on the following factors: the time of the pressure drop in the turbocharger grease system, the gap in the turbocharger bearing node, the frequency of rotation of the rotor before the engine stops. The results of experimental studies on the timing of the turbocharger rotor rotation after the engine stop for the regular mode of greasing the bearing node and when using an individual lubricant system are presented. Based on the experimental values obtained, it is concluded that the main indicator of the performance of the turbocharger is the duration of rotation of its rotor after the engine stops and the application of the individual system of lubrication of the bearing node of the turbocharger reduces the cost of bearing resource and increases the resource of the entire turbocharger of agricultural machinery engines at least twice.

FORMULATION OF THE PROBLEM OF PLANNING AIRCRAFT ROUTES WHEN SERVICING A RANDOM FLOW OF APPLICATIONS ARRIVING IN FLIGHT

The work is about process of ground facilities servicing by aircrafts group when receiving requests during the flight. In case of manned aircraft, servicing of one request refers to the flight from the point to another one. As for unmanned aircrafts, it is necessary to observe reached destination point at the specified speed and flight altitude. It is assumed that the distance between the points and the moments of requests appearing ranked by the Poisson law. Necessary condition of successful task solving is that the average service speed of the requests flow exceeds the average speed of their receipt. It was found that taking into account the randomness of requests, three flight situations are possible – the “idle” mode in service when the requests number is less than the number of unoccupied aircraft, the regular mode when the balance of supply and demand and the “peak” mode when the requests number is increased and there is a queue in service.

Design and Implementation of a Transformer Less Single-Phase Symmetrical Z- Source Heric Inverter with Reduced Leakage Currents for PV Systems

A transformer less single-stage symmetric Z-source HERIC inverter including low spillage flows is proposed right now. It is an endeavor to use the Highly Efficient and Reliable Inverter Concept (HERIC) and an impedance source (Z-source) system to keep up a steady normal mode voltage and consequently low spillage flows in PV applications. The proposed inverter successfully eases the spillage current issue by expelling high-recurrence segments for the regular mode voltage. A lift DC/DC converter is ordinarily embraced in such frameworks, prompting a moderately low productivity, particularly when the PV voltage is low. Answers for this test are to adjust tweak techniques or exchanging designs and along these lines ease the variety of the regular mode voltage. The activity guideline of the proposed inverter is depicted together with its control system. The symmetric Z-source HERIC inverter requires dynamic switches. By and by, the activity recurrence of the switches is the line recurrence, prompting insignificant misfortunes.

Online Education: A Learner’s Perspective During COVID-19

The global health disaster COVID-19 has imposed a self-refrainment from social gathering to contain the disease, because social distancing is the only shield from community spread. Home and work places are altogether giving an unanticipated, unpredicted and unpleasant milieu due to global spread of COVID-19. The teaching–learning process is no exception, with the closure of all educational institutions as a protective step to save lives. The teaching–learning process has been reflecting a very wide and deep impact of COVID-19. With all teachers and learners confined to their places of stay, learning has been impacted to a large extent, with a sense of uncertainty, insecurity and dilemma around effective learning. In fact, the COVID-19 pandemic has thrown the mission and rigour of teaching–learning out of gear. With all classrooms shut, the pandemic has exposed teachers and learners more towards the online learning mode, with no other option perceptible at this point of time. Though online education has always been embraced by academics as a supporting tool, switching over completely to the online mode of learning has raised some serious concerns pertaining to its efficacy and the reluctance of learners in embracing it as a substitute of the regular mode of learning. This study reveals the perception of 2,895 learners on the efficiency of online learning as a substitute of the regular mode of learning. The results show the acceptance of online learning only as a supporting tool to regular learning instead of as a substitute of the regular learning mode on the basis of various factors of effective learning, such as content, pedagogy, assessment and rigour.

The various accretion modes of AM Herculis: Clues from multi-wavelength observations in high accretion states

We report on XMM-Newton and NuSTAR X-ray observations of the prototypical polar, AM Herculis, supported by ground-based photometry and spectroscopy, all obtained in high accretion states. In 2005, AM Herculis was in its regular mode of accretion, showing a self-eclipse of the main accreting pole. X-ray emission during the self-eclipse was assigned to a second pole through its soft X-ray emission and not to scattering. In 2015, AM Herculis was in its reversed mode with strong soft blobby accretion at the far accretion region. The blobby acretion region was more luminous than the other, persistently accreting, therefore called main region. Hard X-rays from the main region did not show a self-eclipse indicating a pronounced migration of the accretion footpoint. Extended phases of soft X-ray extinction through absorption in interbinary matter were observed for the first time in AM Herculis. The spectral parameters of a large number of individual soft flares could be derived. Simultaneous NuSTAR observations in the reversed mode of accretion revealed clear evidence for Compton reflection of radiation from the main pole at the white dwarf surface. This picture is supported by the trace of the Fe resonance line at 6.4 keV through the whole orbit. Highly ionized oxygen lines observed with the Reflection Grating Spectrometer (RGS) were tentatively located at the bottom of the accretion column, although the implied densities are quite different from expectations. In the regular mode of accretion, the phase-dependent modulations in the ultraviolet (UV) are explained with projection effects of an accretion-heated spot at the prime pole. In the reversed mode projection effects cannot be recognized. The light curves reveal an extra source of UV radiation and extended UV absorbing dips. An Hα Doppler map obtained contemporaneously with the NuSTAR and XMM-Newton observations in 2015 lacks the typical narrow emission line from the donor star but reveals emission from an accretion curtain in all velocity quadrants, indicating widely dispersed matter in the magnetosphere.

The social dimension of the modern legal realities

We would like to note that the experience gained shows that the functioning of the legal system in the “regular mode” and inextreme conditions have, of course, significant differences: including, and perhaps primarily in the protection of rights, freedoms andlegitimate interests man.It is axiomatic, and this has been confirmed in practice, that it is social human rights that are the defining “concern”. A fewremarks are not so much a textbook textbook on the development of these rights, but on the segments that indicate the need for today’sactualization of their provision and protection.Finally: the purpose of social policy is to ensure the material well-being of citizens, to achieve stability and security of life insociety, the integrity and dynamism of its development. It is known that society remains calm and stable, when the number of dissatisfied or disagree with public policy is not more thantwenty percent of the population.In addition, the implementation of “sound” social policy is impossible today without the following statements: it is important toemphasize that to ensure the practice of social human rights it is necessary to doctrinally develop and implement the category (socialresponsibilities) including social responsibility: state, business, each member civil society. Without proper, corresponding rights to raisethe question of proper social rights, it is neither possible in the theoretical sense nor in the practical sense.

One-Day Prognoses of Methane Concentrations for the 102 Longwall in the 325/1 Seam in the “W” Coal Mine Operating in a Continuous System

The first part of the paper concerns the natural deposition conditions of the 325/1 seam in the “W” coal mine, in the 102 longwall mining panel. It also presents the most important technical conditions regarding the exploitation at this longwall. To characterize the methane hazard in the longwall area, the parameters of ventilation and total methane concentrations as well as the volumetric flowrate of methane captured by the methane removal system, have been presented graphically. A significant part of the methane flow in the longwall area was released to the air flowing to the longwall. The most significant part of the article is the presentation and analysis of the results of prognoses of mean methane concentrations at the exhaust of the longwall area. The accuracy of the prognoses of methane concentration was verified using two methods: while not considering the release of methane to the air flowing to the longwall and while considering the total flowrate of methane to the ventilation air in the area of the 102 longwall. The method of forecast presented in the article has so far been checked for a 5-day and 6-day work day, as well as for walls operating in a non-regular mode. The article refers to the wall operating in a continuous mode, which required adaptation of the proposed method to this mode. The application of the one-day forecast proposed in the article allows for undertaking temporary methane prevention measures enabling safe use of the wall.

A FOTOPOLIMERIZAÇÃO DE COMPÓSITOS ODONTOLÓGICOS ALÉM DA POTÊNCIA LUMINOSA

O objetivo deste estudo foi mostrar que a potência da luz das unidades de fotopolimerização (LED) não é a única ou a propriedade mais importante para uma polimerização satisfatória de compósitos dentários. A distribuição regular e o ângulo de incidência dos raios de luz também são igualmente responsáveis por uma polimerização mais completa e profunda. Esta revisão de literatura mostra que avançamos o suficiente na potência da luz emitida pelos LEDs, mas no que diz respeito à regularidade e ângulo dos raios emitidos, ainda temos muito a avançar. Novos compósitos com cargas reflexivas e preocupações com a diferença de índice de refração entre as cargas e a matriz são importantes para melhorar essa polimerização, mas os LEDs com vários comprimentos de onda podem complicar ainda mais a distribuição regular dos raios de luz emitidos. Dispositivos com diferentes LEDs emitindo raios de luz com diferentes comprimentos de onda não distribuem essas ondas no modo regular. Portanto, parte da restauração pode estar sub polimerizada, tornando-se menos resistente aos esforços mastigatórios e à infiltração. O estudo também relembra propostas de avaliação científica dessa distribuição regular e conclui que os LEDs modernos emitem raios de luz com grande potência e irradiância, mas ainda são irregulares na distribuição dos raios de luz emitidos.Palavras-chave: fotopolimerização, conprimento de onda, irradiância, resina composta.PHOTOPOLIMERIZATION OF DENTAL COMPOSITES BEYOND THE LIGHT POWER EMITED BY LED LIGHT CURING UNITSABSTRACT: The objective of this study was to show that light power of light curing units (LCU) is not the only or the most important property for a satisfactory polymerization of dental composites. Regular distribution and angle of incidence of the light rays are also equally responsible for a fuller and deeper polymerization. This literature review shows that we advanced enough in the power of light emitted by LCUs, but as regards the regularity and angle of the emitted rays, we still have much to advance. New composites with reflective fillers and concerns about the difference of refractive index between the fillers and the matrixare important help to improve this polymerization, but LCUs with several wavelengths can further complicate the regular distribution of emitted light rays. Devices with different LEDs emitting light rays with different wavelengths does not distribute these waves in a regular mode. Therefore, part of the restoration can be under polymerized, becoming less resistant to masticatory efforts and infiltration as well. The study also recalls proposals for scientific evaluation of this regular distribution and concludes that modern LCUs emit light rays with great power and irradiance, but are still irregular in the distribution of emitted light rays.Keywords: photopolymerization, wavelength, Irradiance, composite.