Miracle-dz/UniFAR-FTUs huggingface dataset:
Self Assembly of semiconductor nanostructures

Abstract In this work we present the growth and characterization of GaAs self-assembled quantum wires (SAQWRs), and InAs self-assembled quantum dots (SAQDs) by molecular beam epitaxy on (631)-oriented GaAs substrates. Adatoms on the (631) crystal plane present a strong surface diffusion anisotropy which we use to induce preferential growth along one direction to produce SAQWRs. On the other hand, InAs SAQDs were obtained on GaAs(631) with SAQWRs by the Stransky–Krastanov (S-K) growth method. SAQDs grown directly on (631) substrates presented considerable fluctuations in size. We study the effects of growing a stressor layer before the SAQDs formation to reduce these fluctuations. Keywords : Quantum wires, quantum dots; selfassembly; molecular beam epitaxy.
Modelling a throttling device during separation of moisture from gas flow

The need to design a model of a throttling device, which is used in the process of low temperature separation (LTS) of moisture from the gas flow, is predetermined by the necessity to coordinate the modes of functioning of the throttle with the modes of the heat exchanger and the separator that are included in the installation of separation. Proceeding from the task of efficient management of the process of the LTS of moisture from the gas flow, we analyzed a channel of control of the flow of gas under throttling. The peculiarity of managing the process of separation of moisture is in the contradiction between the productivity of the gas flow and the conditions of moisture removal. In order to study the influence of parameters of a throttle on the formation of the modes of passing flow, a distribution of the field of the flow velocities is obtained in the software environment of ANSYS Workbench. Visualization of the flow stream allows analyzing the level of turbulence of the flow under throttling and forecasting the trajectory of moisture droplets formed at throttling. By comparing the data obtained from the experimental installation with the data of numerical calculations, carried out in accordance with well­known mathematical models of the flow under throttling, we conducted the assessment of the adequacy of the description of the object of control. It is shown that the assumption of incompressibility of natural gas when evaluating the rate leads to significant errors. As a result of the identification of the parameters of a throttling device, its simulation was implemented in the environment of MatLab Simulink. Block construction of the model allows performing simulation under conditions of arbitrary nature of the change in the parameters of the process over time. The assessment of the adequacy of simulating a throttle device allows using the studied model for constructing a model of an installation of moisture separation from gas flow.
A Social Cognitive Neuroscience Stance on Human-Robot Interactions

Robotic devices, thanks to the controlled variations in their appearance and behaviors, provide useful tools to test hypotheses pertaining to social interactions. These agents were used to investigate one theoretical framework, resonance, which is defined, at the behavioral and neural levels, as an overlap between first- and third- person representations of mental states such as motor intentions or emotions. Behaviorally, we found a reduced, but significant, resonance towards a humanoid robot displaying biological motion, compared to a human. Using neuroimaging, we've reported that while perceptual processes in the human occipital and temporal lobe are more strongly engaged when perceiving a humanoid robot than a human action, activity in areas involved in motor resonance depends on attentional modulation for artificial agent more strongly than for human agents. Altogether, these studies using artificial agents offer valuable insights into the interaction of bottom-up and top-down processes in the perception of artificial agents.
Prediction of Football-playing Ability in Spring Training Tryouts Through the Use of Psychobiomotor Assessment

Psychobiomotor assessment refers to the use of a combination of psychological, biological, and motorperformance tests to comprehensively analyze the skills, attributes, and performance capabilities of athletes. The purpose of this study was to test the hypothesis that there are significant psychobiomotor differences between successful collegiate footb~ll players in the offensive backfield positions and those players who are rated as less successful tn these positions. Subjects were 19 male volunteer tryouts (mean age = 20.5) for the positions of quarterback and halfback on the inaugural University of Central Florida football team. They were assessed on the physiological variable anaerobic capacity, the psychological dimensions measured by the Cattell 16PF, and also on four football-playing skills. Footballplaying ability (the dependent variable) was assessed by coaches' ratings on 15 sub-variables determined to be important to the offensive backfield positions. Stepwise multiple linear regression analysis, utilized to give the best linear composite of the predictor variables to the dependent variable, resulted in a multiple correlation coefficient of . 82 (p < .005). The prediction equation included four variables: conservativism, aggressiveness, anaerobic capacity, and passreceiving ability. Thus, a significant 68% of the variance of football-playing ability was accounted for by the use of these four psychobiomotor variables. By using a validated test battery, team personnel, performance, profits, prestige, and effectiveness could be improved. Also, a battery could be used to train current team members on areas of relative skill deficiencies. Acknowledgments I would like to thank Bob Adams, Gary Meiseles, Janice White, Dan Tressler, Wayne Burroughs, and Burt Blau for assisting in the monumental task of data collection. I would also like to thank my brother Joseph Secunda, for his unending knowledge of sports and willingness to spend numerous hours sharing some of that knowledge with me. In addition, I would like to thank Wayne Burroughs for his generous help during the initial planning stages and Burton Blau for his untiring efforts to improve the writing style of a student sorely deficient in that area. I also wish to thank Coach Don Jonas for his interest, time, and help, without which this research project would not have been possible. Finally, I would like to thank my loving parents, John and Christine Secunda, for never giving up and al~ays caring.
Ohio V. Clark: Brief of Amicus Curiae American Professional Society on the Abuse of Children in Support of Petitioner

“Testimonial” statements are inadmissible against criminal defendants under the Confrontation Clause unless the declarant was subject to cross-examination. Statements are testimonial if the primary purpose of the speaker and the interrogator was to create an out-of-court substitute for trial testimony. Ohio v. Clark (2015) considered whether a 3-year-old’s disclosure of abuse to his teacher is testimonial. This brief surveyed case law, statutory law, and psychological and criminological research in arguing that it is not. First, young children do not appreciate that their disclosures may be used at trial, because they do not fully understand the legal system. Furthermore, many children do not want their disclosures to lead to criminal punishment because of their relationship with the abuser. In other contexts, the court has recognized that children often lack the same purpose and understanding as adults. Second, the primary purpose of teachers and other mandated reporters is to protect children rather than to punish abusers. The statutory purpose of mandated reporting laws is to protect children and rehabilitate the family, and, as a practical matter, states achieve this primarily through child-protective services investigations and civil proceedings in juvenile court. The court has recognized the distinction between a protective and punitive purpose in defining other constitutional rights. Third, finding children’s statements nontestimonial will promote accuracy in adjudication. The courts assess the reliability of statements before admitting them into evidence, and defendants are free to challenge their credibility. Flexibility in classifying children’s statements as testimonial will encourage the states to videotape investigative interviews with children.
An overview of 5.1 surround sound within the electronic dance music context

This dissertation examines aspects around the 5 . 1 surround sound approach to mixing music. Although the use of surround sound systems has become thoroughly pervasive in numerous spheres in modern society, specifically in the context of home theatre systems, the present dissertation focuses mainly on 5 . 1 mixing within the context of electronic dance music (EDM). This focus was decided upon because EDM is the field in which the researcher is currently active. After an examination of the physiological and cognitive aspects of the human auditory system, with specific emphasis on sound localisation, as context for discussion of 5.1 surround, an overview is given of currently available documentation providing specifications for the implementation of 5.1 surround. This is then related specifically to questions regarding mixing in the context of 5.1 surround and incorporates a discussion the views of producers currently active in the EDM industry. The ultimate aim of the ahovementioned is to establish the extent, or lack thereof, to which 5 . 1 surround is currently being implemented in the field of EDM. In response to this, the implementation of 5.1 in EDM is illustrated through practical application of 5.1 surround mixing in original music produced by the researcher and accompanying the present dissertation. page iii Stellenbosch University https://scholar.sun.ac.za
Identification of Military-related Science and Technology

A proof-of-principle demonstration for extracting military-related technologies from a country's total technology publications has been performed, and applied to the Indian science and technology literature#. The method is general and can be applied to the extraction of any meta-category (e.g., intelligence-relevanttechnologies, infrastructure-relevant technologies, etc) which is not easily obtained from document clustering or factor analysis. The methodology for identifying relevant literature on military science appears to provide credible results. The volume of literature retrieved will vary depending on how strongly relevant is the desired literature. For the same definitions of 'military relevant', the volume of India's literature in the Ei Compendex database was an order of magnitude less than that of the USA or China.Defence Science Journal, 2010, 60(3), pp.259-270, DOI:http://dx.doi. org/10.14429/dsj.60. 352
Can stretch zone measurements provide a good estimate of fracture toughness

Stretch zone measurement on the fracture surfaces is often used for ductile fracture estimations. However, it is not clear whether to use the stretch zone width or stretch zone depth for such evaluations. Both these dimensions have been used by several researchers for correlation with fracture toughness. While some researchers claim the use of stretch zone width, others recommend stretch zone depth for ductile fracture estimation. Moreover, a unified procedure for stretch zone depth measurement is not available in the literature. In this work, a method is proposed for stretch zone depth measurement and influence of prestrain on ductile fracture of two varieties of Cu-strengthened HSLA steels have been examined through both stretch zone width and stretch zone depth measurenments. Results are compared with the variation in fracture toughness (Ji) with prestrain. It is noted that the stretch zone depth measurements could predict the nature of variation in fracture toughness with prestrain for both the steels than the stretch zone width. It is therefore concluded that stretch zone depth measurements can be a useful method whenever the trend in the fracture toughness variation with respect to material/process parameter is to be examined. However, J estimated from stretch zone width provides a better approximation of the toughness and the nature of variation would also follow a similar trend as Ji only beyond the inhomogeneous yielding zone of these steels.
Estimating flow and transport parameters in the unsaturated zone with pore water stable isotopes

Determining the soil hydraulic properties is a prerequisite to physically model transient water flow and solute transport in the vadose zone. Estimating these properties by inverse modelling techniques has become more common within the last 2 decades. While these inverse approaches usually fit simulations to hydrometric data, we expanded the methodology by using independent information about the stable isotope composition of the soil pore water depth profile as a single or additional optimization target. To demonstrate the potential and limits of this approach, we compared the results of three inverse modelling strategies where the fitting targets were (a) pore water isotope concentrations, (b) a combination of pore water isotope concentrations and soil moisture time series, and (c) a two-step approach using first soil moisture data to determine water flow parameters and then the pore water stable isotope concentrations to estimate the solute transport parameters. The analyses were conducted at three study sites with different soil properties and vegetation. The transient unsaturated water flow was simulated by solving the Richards equation numerically with the finite-element code of HYDRUS-1D. The transport of deuterium was simulated with the advection-dispersion equation, and a modified version of HYDRUS was used, allowing deuterium loss during evaporation. The Mualem–van Genuchten and the longitudinal dispersivity parameters were determined for two major soil horizons at each site. The results show that approach (a), using only the pore water isotope content, cannot substitute hydrometric information to derive parameter sets that reflect the observed soil moisture dynamics but gives comparable results when the parameter space is constrained by pedotransfer functions. Approaches (b) and (c), using both the isotope profiles and the soil moisture time series, resulted in good simulation results with regard to the Kling–Gupta efficiency and good parameter identifiability. However, approach (b) has the advantage that it considers the isotope data not only for the solute transport parameters but also for water flow and root water uptake, and thus increases parameter realism. Approaches (b) and (c) both outcompeted simulations run with parameters derived from pedotransfer functions, which did not result in an acceptable representation of the soil moisture dynamics and pore water stable isotope composition. Overall, parameters based on this new approach that includes isotope data lead to similar model performances regarding the water balance and soil moisture dynamics and better parameter identifiability than the conventional inverse model approaches limited to hydrometric fitting targets. If only data from isotope profiles in combination with textural information is available, the results are still satisfactory. This method has the additional advantage that it will not only allow us to estimate water balance and response times but also site-specific time variant transit times or solute breakthrough within the soil profile.
Importance of planktonic community respiration on the carbon balance of the East China Sea in summer

The East China Sea (ECS) is one of the largest continental shelves in the world; however, the role that biota plays in the carbon fluxes of this shelf ecosystem is still obscure. To evaluate the organic carbon balance and the roles played by planktonic communities in organic carbon consumption, two cruises with stations covering almost the entire shelf were conducted during the high productivity and high river flow season of the ECS in June (the early summer) and August (the middle summer) 2003. Results showed that biological activity was significantly higher in the early summer. To flourish in the early summer, plankton need a significant fluvial input of dissolved inorganic nutrients and organic matter from the Chinese coast, especially from the Changjiang (aka Yangtze River), might be one of the main driving forces. Further analysis showed that most planktonic community respiration (PCR) could be attributed to phytoplankton and bacterioplankton, which accounted for over 96% of the total planktonic biomass (in carbon units) in summer. This might partially explain why mean PCR was higher in June (∼114 mg C m−3 d−1), with higher phytoplankton biomass, than in August (∼40 mg m−3 d−1). The ratio of integrated primary production to PCR (i.e., the P/R ratio) was, however, less than 1, with a mean ± SD value of 0.35 ± 0.41 for all the pooled data. This indicates a significant amount of organic carbon has been regenerated through planktonic activity in the water column. The sea‐air difference in fCO2, however, changed from a mean value of −64.5 ± 61.3 ppm in June to 10.0 ± 37.5 ppm in August. To explain the contradictory results between PCR and fCO2, we suggest that the dissolved inorganic carbon regenerated through planktonic respiration could be stored in the subsurface layer and may affect the fCO2 in the surface water, which is what controls the shelf sea either as an atmospheric CO2 sink or as a source, depending on the prevailing physical forces. These results also suggest that the controversy between atmospheric CO2 sink or source in the ECS shelf needs further exploration.
Do Individuals Put Effort into Lying? Evidence from a Compliance Experiment

We study whether individuals in a face-to-face situation can successfully exert some lying effort to delude others. We exploit data from a laboratory experiment in which participants were asked to assess videotaped statements as being rather truthful or untruthful. The statements are face-to-face tax declarations. The video clips feature each subject twice making the same declaration. But one time the subject is reporting truthfully, the other time willingly untruthfully. This allows us to investigate within-subject differences in trustworthiness. We find that a subject is perceived as more trustworthy if she deceives than if she reports truthfully. It is particularly individuals with dishonest appearance who manage to increase their perceived trustworthiness by up to 15 percent. This is evidence of individuals successfully exerting lying effort.
Inflammation and Pancreatic Cancer: A Tale of Two Cytokines

Inflammation and Pancreatic Cancer: A Tale of Two Cytokines Pancreatic cancer is the most fatal of all gastrointestinal (GI) cancers, with only a 5.8% survival rate beyond five years after initial diagnosis. This cancer is characterized by a high mortality, rapid progression, and resistance to chemo and radiation therapy. Surgical resection is the only curative treatment for pancreatic cancer, but only less than 15% patients are eligible for surgery. The front-line treatment for metastatic pancreatic cancer has been adjuvant chemotherapy trials of gemcitabine and gemcitabine-based combinational therapy. However, over the past decade, no significant advances in efficacy of chemotherapeutic treatment have arisen, and the mean survival rate of those who have undergone such treatment has not improved.
Overweight and hypertension among college of health sciences employees in Ghana

Health care workers , by virtue of their greater access to information, are expected to have less risk of obesity , hypertension, and other health outcomes often linked to lifestyles . However, t here is limited evidence on practices and status of personnel who work in the healthcare setting about hypertension and overweight in Ghana. The current study tests the hypothesis that overweight and hypertension rates, as well as related risk factors among staff and faculty of the College of Health Sciences (CHS), University of Ghana , will be more positive than among the lay public . In June and July 2009, a cross -sectional self -completed survey was administered to 141 male and female faculty and staff of the College of Health Sciences, University of Ghana, in Accra. A representative sample was selected by proportionate random sampling from all seven academic and research units of the CHS . Anthropometry and blood pressure measurements were taken with questionnaire data on lifestyle , dietary history, and socio -demographic variables . Overweight and obesity were diagnosed as BMI >25 and >30 kg/m 2 , respectively. Abdominal adiposity was estimated as waist hip ratio >0.80 (females) or >0.95 (males). Hypertension was diagnosed as diastolic or systolic blood pressure > 140 or 90 mm Hg , respectively . Mean age of respondents was 40.5 + 10.8 years ; 43% were over -weight, including 13% obese. More than one -third of overweight respondents did not report an overweight body image. Abdominal adiposity and hypertension rates were 25% and 34% , respectively . Low rates of regular physical activity (25%) and consumption of fruits and vegetables (40%) were observed. Overweight (OR=3.83; p<0.01) and central adiposity (OR=4.8; p<0.01) were associated with significantly increased risk of hypertension. Being married was a significant predictor of overweight (p<0.05), abdominal adiposity (p<0.05), and hypertension (p<0.05). The study concludes that working i n a health care environment or being a health worker does not diminish your risk of overweight and hypertension. It is, therefore , recommended that interventions addressing overweight and hypertension should place attention more on environmental modifications rather than awareness creation .
A Little Help from My Friend: International Subsidy Games with Hyperbolic Demands∗

In this paper, we assume a hyperbolic price function and construct a three-country model with two active governments and two firms. The purpose of this study is to consider dynamic behavior of the sequential subsidy game in which the governments determine their optimal trade policies and, accordingly, the firms choose their optimal outputs. We first show the existence of an optimal trade policy under realistic conditions. Our main results are summarized as follows: (1) when the production costs are identical, then a trade policy and the corresponding optimal output are stable if the demand is elastic while multistability (i.e., coexistence of multiple attracors) and complex dynamics occur if the demand is inelastic; (2) when the production costs are different, then a stable trade policy induces chaotic output fluctuations regardless of demand elasticity; (3) policy dynamics can be chaotic if demand is elastic while multistability still occurs if the demand is inelastic.