Miracle-dz/UniFAR-FTUs huggingface dataset:
High antiferroelectric stability and large electric field–induced strain in MnO2-doped Pb0.97La0.02(Zr0.63Sn0.26Ti0.11)O3 ceramics

Crystal structure and electrical properties of MnO2-doped Pb0.97La0. 02(Zr0.63Sn0.26Ti0.11)O3 antiferroelectric ceramic were studied in detail in this article. X-ray diffraction analysis showed that all specimens took on single tetragonal antiferroelectric structure, and antiferroelectric phase stability enhanced with the increase of MnO2 addition, which was because that the substitution of Mn2+ or Mn3+ with large ion radius for B-site Ti4+ decreased the tolerance factor of the ceramic. In addition, it was observed that different from Mn doping reducing Tm of ferroelectric ceramics, Tm of antiferroelectric ceramics increased with the addition of MnO2, which is for the reason that MnO2 addition enlarged the zone of antiferroelectric phase. Furthermore, by increasing MnO2 content, the strain first increased and then decreased. Meanwhile, the value improved obviously as the measuring frequency decreased. The largest electric field–induced strain of 0.65% was obtained in the specimen with 0.2 mol% MnO2 doping at the frequency of 1 Hz, which lay a foundation for preparing actuator with high strain energy density.
The effect of population density of Lymantria dispar (Lepidoptera: Erebidae) on its fitness, physiology and activation of the covert nucleopolyhedrovirus

After high population densities of insect defoliators there is often a dramatic decrease in their abundance due to various limiting factors. Here, we compared gypsy moth larvae (Lymantria dispar L.) reared singly and in crowded conditions. We compared a number of physiological parameters of these insects and the effect of L. dispar population density on the activation of covert baculovirus infections in the larvae. It was found that the population density of gypsy moth larvae did not affect the mortality due to the activation of the covert virus infection or the total mortality. On the other hand, solitary-reared larvae were heavier, took longer to develop, and showed a four-fold higher concentration of dopamine in their haemolymph than larvae reared in groups. Thus, we demonstrated that an increase in the population density of larvae per se facilitates some changes in fitness and innate immunity traits but is not related to the activation of covert baculovirus infection. We suggest that an increase in population density does not increase the risk of epizootics triggered by the activation of covert baculovirus infection and that researchers should pay more attention to studying density-associated factors, such as starvation.
Subgrade modulus for laterally loaded piles

Closed-form solutions for laterally loaded piles have been established recently, accounting for various head and base conditions. The solutions are based on load transfer approach by simplifying the pile-soil interaction as independent springs along the pile shaft and at the pile base. The key of the approach is the determination of the subgrade modulus for the springs. Although a few expressions originally developed for beam analysis were used for the determination, the usage has not been rigorously verified. In this paper, the rationality of the usage has been examined in comparison with various numerical results available. Particularly the accuracy and sufficiency of the load transfer approach and the coupling effect has been explored in detail. Rigorous expressions for lateral pile analysis, and the determination of subgrade modulus, and the coupling effect are provided.
Importance of a View Window in Rating Green Office Buildings

The essence of a view window (VW) in an office building is not only to bring an optimal balance between daylight and electric light, but also for psychological and health purpose. VW does not only allow the admittance of light and views, but indirectly affects the productivity and psychological wellbeing of office occupants; it has a link to the sustainability in both conventional and green buildings. This paper defines the function of a view window as it relates to green office building. Through literature review and an experiment conducted in room 432-01 located at B11 Faculty of Built Environment, Universiti Teknologi Malaysia. The function of VW in a green office building is highlighted; and the findings show that a VW would enhance sustainability in an office setting and has a dimension greater than 750mm above a finish floor level and less or equal to 2300mm above a finish floor level and with a wall to window ratio (WWR) of 25% to 40%.
TREMOR: A Wireless MEMS Accelerograph for Dense Arrays

The ability of a strong-motion network to resolve wavefields can be described on three axes: frequency, amplitude, and space. While the need for spatial resolution is apparent, for practical reasons that axis is often neglected. TREMOR is a MEMS-based accelerograph using wireless Internet to minimize lifecycle cost. TREMOR instruments can economically augment traditional ones, residing between them to improve spatial resolution. The TREMOR instrument described here has dynamic range of 96 dB between ±2 g, or 102 dB between ±4 g. It is linear to <1% of full scale (FS), with a response function effectively shaped electronically. We developed an economical, very low noise, accurate (<1%FS) temperature compensation method. Displacement is easily recovered to 10-cm accuracy at full bandwidth, and better with care. We deployed prototype instruments in Oakland, California, beginning in 1998, with 13 now at mean spacing of ∼3 km—one of the most densely instrumented urban centers in the United States. This array is among the quickest in returning (PGA, PGV, Sa) vectors to ShakeMap, ∼75 to 100 s. Some 13 events have been recorded. A ShakeMap and an example of spatial variability are shown. Extensive tests of the prototypes for a commercial instrument are described here and in a companion paper.
Genotypic Effect of Groundnut on Nodulation, N Fixation and N Balance in The Two Savannahs of Nigeria

Identification of high N-fixing groundnut genotypes and integrating them into the prevailing cereal-based cropping systems can reduce the need for nitrogen (N) fertilizers, thus minimizing their high cost and associated environmental consequences. This study was conducted to estimate the amount of symbiotically fixed N by groundnut genotypes and its contribution to soil N and yield of groundnut. Trials were carried out during the 2015 rainy season at Bayero University Kano (BUK) Agricultural Research Farm and the research farm of the Institute for Agricultural Research (IAR), Samaru-Zaria. The treatments comprised of 15 groundnut genotypes (ICG 4729, ICGV-IS 07823, ICGV-IS 07893, ICGV-IS 07908, ICGV- SM 07539, ICGV- SM 07599, ICGV-IS 09926, ICGV-IS 09932, ICGV-IS 09992, ICGV-IS 09994, SAMNUT-21, SAMNUT-22, SAMNUT-25, KAMPALA and KWANKWASO) arranged in a randomized complete block design in three replicates. Data on nodulation, nitrogen fixation and N balance were collected. The results of the study showed that ICGV-IS 09932 significantly fixed the highest amount of N at IAR location while the lowest was obtained in KWANKWASO. On the other hand, SAMNUT-22 fixed the highest N among the genotypes while ICGV- SM 07539 fixed the lowest N in BUK location. Similarly, SAMNUT-22 which fixed moderate to high amount of N but low to moderate NHI was the best genotype that imparted positively to soil N balance among the genotypes when only the grains were removed across the locations. On the other hand, SAMNUT-21 which fixed low to high amount of N to the soil but accumulated low N in its grains was the best genotype that left fairly close to zero nitrogen balance, even though imparted negatively on soil N balance when both grains and haulms were removed.
Organisational learning, product quality and performance: the moderating effect of social ties in Chinese cross-border outsourcing

This study focuses on how government ties and financial ties as two important social ties in emerging countries differently moderate the relationships between two types of organisational learning (i.e., explorative learning and exploitative learning) and product quality. By using Chinese vendor samples in cross-border outsourcing, our empirical results show that product quality mediates the positive relationships between explorative and exploitative learning and financial performance. Furthermore, the moderating effects of government ties on the relationships between both two types of organisational learning and product quality are significantly positive. While financial ties positively moderate the relationship between exploitative learning and product quality, they negatively moderate the relationship between explorative learning and product quality.
A Novel Experimental Setup to Apply Controlled Disturbances to Bicycle Dynamics in a Safe Environment

The SOFIE project aims to improve the understanding of bicycle and rider stability in order to increase the safety of elderly cyclists. In the framework of this project, an advanced multi-body model of bicycle and rider dynamics, including the influences of the environment, is developed. The purpose of this model is to test, in the design phase, different concepts of so-called Intelligent Assist Devices (IADs) to enhance cycling safety. The model is validated in a novel experimental setup where under controlled and safe conditions the rider and bicycle can be perturbed to identify the properties of the control mechanisms.In the setup the rear wheel of the instrumented bicycle rotates freely on a roller bench. The front wheel rotates on a treadmill to preserve the tire-road contact[9]; steering can still be used to maintain balance. The roller bench is situated on a 6 degrees of freedom Stewart platform. The movement of the platform can be controlled in each direction. Therefore, it is possible to apply disturbances to the roll, pitch and yaw and to apply lateral, posterior and superior disturbances to the bicycle with a predetermined multisine disturbance signal.The bicycle is equipped with sufficient inertial sensors to accurately estimate the current orientations. Furthermore, the laboratory setup allows utilizing a marker-based video system to measure subject and bicycle movements in a global frame. The subject is secured in a safety harness. By analysing experiments in this setup in the mathematical model, the experiments may serve as validation data.Preliminary results showed that it is well possible to perform perturbation experiments; the actual modelling of the tyre-floor contact proves important in determining the response. Further experiments will be done to estimate the properties of the control system in different categories of riders using system identification, allowing differences between young and elderly subjects to be studied. Subsequently, with the novel experimental setup it is possible to evaluate IADs.Copyright © 2014 by ASME
Aspectos epidemiológicos do comportamento suicida em estudantes universitários

Introdução: O suicídio é considerado como um problema de saúde pública. A Organização Mundial da Saúde estima a ocorrência de mais de 800 mil mortes por suicídio no ano de 2012 e cerca de 1.600. 000 mortes por suicídio em 2020. O Brasil ocupa a oitava posição entre os países das Américas, com maiores números absolutos de suicídio. Neste contexto, este estudo teve por objetivo identificar a ocorrência de comportamento suicida, compreendendo as suas fases, em estudantes universitários de cidade no centro-oeste paulista. Materiais e Métodos: Trata-se de estudo transversal, de natureza quantitativa, realizado com 353 estudantes universitários. Coleta de dados em 2018, com aplicação de questionários semiestruturados elaborados pelos autores. Análise de dados com técnicas de estatísticas descritiva e inferencial (Teste de Qui-quadrado de Pearson e Teste Exato de Fisher). O projeto desta pesquisa foi aprovado pelo Comitê de Ética em Pesquisa. Resultados: O comportamento suicida identificado, compreendendo as suas fases, foi: ideias de morte (34,8%), ideação suicida (26,1%), desejo de suicídio (17,3%), intenção de suicídio (8,2%), plano de suicídio (9,3%) e tentativa de suicídio (3,1%). Identificou-se a vivência do comportamento suicida por estudantes universitários em todas as fases que o compõe. Discussão: A susceptibilidade de estudantes universitários ao desenvolvimento de comportamento suicida está relacionada a momentos vivenciados, tomados por sentimentos e angústias. Demandas de ordem única ou coletiva. Conclusões: Quanto as variáveis acadêmicas e a relação com as fases do comportamento suicida, observou-se a existência de associação em relação ao curso de graduação.
Wireless LAN Standards and Applications

From the Publisher: If you're an engineer involved in developing wireless LAN systems, this valuable book will give you a practical understanding of the latest wireless LAN standards and their implementation. The book clearly explains the two principal standards, IEEE 802.11 and IrDA, plus the HIPERLAN standard, and explores their real-world applications through commercially available equipment. Specific scenarios explain how WLAN systems can be built and integrated with cabled systems.
Physicochemical Properties and Antioxidant Activity of Chicken Sausage with Addition of Roselle Extract (Hibiscus sabdariffa) and Different Filler Ratio

This study was done to determine the effect of Roselle extract level (Hibiscus sabdariffa), and the wheat flour and mocaf flour ratio, as well as the interaction between the Roselle extract level and the wheat flour and mocaf flour ratio on the chemical, physical, and antioxidant activity of chicken sausage. The ingredients used were chicken meat, wheat flour, mocaf flour, Roselle extract, skim milk powder, and spices. Roselle extract levels were 0, 4, and 8% (v/w of total dough) and ratio of wheat flour : mocaf flours were 100:0, 50:50 and 0:100. Parameters observed included chemical composition (moisture, protein, and fat contents), physical properties (pH value and tenderness), and antioxidant activity of chicken sausage. Data were analyzed by analysis of variance of 3x3 factorial and continued by Duncan's new multiple range test test. The results of statistical analysis showed that Roselle extract level gave a significant effect (P<0.05) on moisture content, pH value, and antioxidant activity of chicken sausage. Ratio of wheat flour : mocaf flour gave a significant effect (P<0.05) on protein content, tenderness and antioxidant activity of chicken sausage. There was no interaction between Roselle extract level and the wheat flour : mocaf flour ratio on the physicochemical properties and antioxidant activity of chicken sausage. The conclusion of this study is the addition of Roselle extract upto 8% will increase moisture content and antioxidant activity, but it decreases the pH value and tenderness of chicken sausage. Subtitution of wheat flour with mocaf flour will reduce protein content, tenderness and antioxidant activity of chicken sausage.
Forensic voice identification under optimum environment, noisy environment and over telephone condition

The importance of voice identification was noted since World War II but there is still no standardized forensic voice identification tool available in Hong Kong. This study aimed at setting the preliminary development of such system in Hong Kong. The objective of the study was to determine the identification accuracy of the suspected voice under optimum environment, noisy environment and over telephone with perceptual and acoustic methods. Thirty-three Cantonese-speaking subjects were recruited to carry out a perceptual voice identification task. Line-ups from six people were used. The acoustic method involved spectrographic analysis by 10 subjects. The findings indicated that the accuracies of identification were similar under these three conditions. Earwitnesses’ confidence under different conditions was significantly different but the confidence-accuracy correlation was found to be non-significant. For acoustic analysis, the criminals’ voice was distinctive from others only under the optimum condition. It is concluded that perceptual method can be applied to favorable and unfavorable conditions while acoustic method can only be applied to optimum condition.
Revisiting Transnational Corporationsâ Literature: The Implicit Emphasis on Spatial Reflections

This paper aimed to explore the different approaches to Transnational Corporations (TNC) with implicit emphasis on their spatial reflections. For this aim, major studies in the subject were examined according to their main concerns which were namely monopolistic advantage, internalization advantage and others (global dynamics, innovation, entrepreneurship and etc.). These studies were broadly consistent in concluding that the earlier ones on TNCs and their FDI were mostly firm-based studies and given emphasis to the monopoly and internalization advantages without taken into consideration spatial conditions. The studies realized after the 1970s were started to discuss about different factors in affecting FDI. A special emphasis was given to the locational characteristics of the host countries, i.e. natural resources, raw material, distance from the market, cheap labour power, unsupplied market. The changing dynamics of the global economy last four decades dictates that TNCs have to adjust their strategy and structure to better fit with the competitive environment, which can be understood from the studies realized in these years. In spite of the increased mobility in every aspect of our life and discussions on “annihilation of space by time”, it was interesting to see an increase in the studies mainly concerned spatial dependency of TNCs. Key Words : Foreign Direct Investment, Transnational corporations, Location, Globalization.
Turbulence in industrial populations : the case of the Italian graphic paper industry

Significant and persistent flows of entry and exit, that is, turbulence, are a common feature of most industries, across countries and over time. By means of a new database for the Italian graphic papermaking industry between 1964 and 2004, this research inquires into the extent and character of entry and exit in an industry where innovation in products and processes has been incremental and largely predictable and, therefore, unlikely to be the main driving force of firm turbulence. The first part of the thesis deals with methodological issues concerning compilation of the thesis’ database, which records, annually, plants’ and firms’ major demographic events, attributes and proprietary linkages, thus allowing comparison between the dynamics of plants and firms throughout the reference period. Special attention was given to avoid measurement distortions that would have risen from using business register administrative files. The second part focuses on what factors are more likely to affect survival prospects of plants and firms. Using logistical analysis, econometric results confirm that plant exit has been determined by efficiency of its equipment, diversification strategy of the proprietary firm and, unexpectedly, its organizational history. Using survival analysis, econometric results reveal that the risk of exit for firms is lowered by pursuit of external growth strategies (acquisition of plants), concentration of production into graphic paper and being equipped with modern machinery. The third part examines the effects of firm turbulence on the evolution of concentration in the industry. The data show that acquisitions have been an important source of turnover among the leading companies and that a significant portion of the leading companies has been relatively new. The analysis also indicates that at least some turbulence has led to instability of market shares among the leading firms.
An Exact Model of Acoustic Radiation in Enclosed Spaces

The acoustician's armory for modeling radiation of sound in enclosed spaces has traditionally been limited to the use of scale modeling, image theory, ray tracing, and the consideration of only some of the enclosure boundaries. Acoustic finite-element analysis is now reaching maturity and offers the designer of acoustic spaces the potential to produce exact computer models. The finite-element technique is discussed as applied to acoustic spaces, illustrating the facility to model complex structures, absorption, and multiple sources.
Stakeholder perspectives of widening access initiatives to medical school in the UK: A scoping review

Background: Widening access initiatives to medical school (WAMS) have had mixed success. One reason may be the competing interests of different stakeholder groups involved. The aim of this scoping review was to explore stakeholder perspectives of widening access initiatives to medical school in the UK. Methods: Scoping review, including the use of data sources from published literature from 1998 to 2018, CINAHL, Applied Social Sciences Index and Abstracts, ProQuest Education Collection, PsychINFO, PubMed, key journals and citation tracking. Results: The review focused on the 12 papers which comprise 11 studies and can be categorised into: 8 studies on Widening Access initiatives done in the UK, 2 studies on stakeholder perspectives only and 1 generic review on “best practices” in WAMS. The 4 main areas targeted by the WAMS initiatives in this review include: outreach, selection, transition, retention and completion. They also display several key features which could have contributed to their success and sustainability, namely: committed personnel and resources, selection of suitable WAMS applicants, focused sessions based on needs of students, led and delivered by a combination of staff and medical students, utilisation of technology and social media and data collection and feedback. The stakeholders identified are as follows: students, parents, school teachers, medical schools’ admissions deans, WAMS facilitators, policy makers, hospital management and the public. Their interests and perspectives have been tabulated. Conclusions: WAMS in the UK have come a long way since their inception, but much remains to be done in achieving their desired results more broadly. As more resources are being allocated to WAMS around the country, a more thorough exploration of stakeholder perspectives and interests may be helpful in understanding how these programmes work.
Management & organizational behavior

A revised, updated overview of the entire field of management. This highly flexible text treats traditional topics, such as planning, organizing, and controlling, as well as production/operations management and organizational behavior. Offers timely coverage of such issues as international management, human resource development, and quality of work life. Also provides new material on motivation to manage, use of power and authority, ERG theory, and the psychological basis for effective job design. Learning aids include margin notes, chapter exercises and cases, and chapter outlines.
Stakeholder management in disaster restoration projects

Purpose – This paper aims to identify stakeholder issues on disaster restoration projects from a contractor perspective. Disaster occurrences normally warrant substantial restoration and reconstruction efforts. These projects involve the mitigation and repair of disaster-affected buildings and structures. Design/methodology/approach – This study is essentially exploratory in nature. It reviews relevant literature and then presents empirical research findings garnered from disaster restoration practitioners. A survey using the Likert rating scale method was used. The data were collected via an online questionnaire survey. Findings – The results confirm that disaster restoration projects contain significant stakeholder issues and challenges. Furthermore, these can differ from conventional construction and the work of “first responders” to disaster situations. Hence, disaster restoration projects are seen as having their own unique identity. Research limitations/implications – This paper has only set out to .