Fear of crime perceptions of university students

In this research, university students’ perceptions of fear of crime are examined in terms of sex, nationality, living area, marital status, victimisation and disorder. The aim of the research is to observe fear of crime literature’s key parameters on university students. Data was obtained from 330 university students studying in one of the state universities through a survey. Bivariate and multivariate results show that female students experience a greater fear of crime compared to male students. Fear of crime is greater amongst Turkish students as opposed to Turkish Cypriot students. Also, it is found that a high perception of disorder factors has an impact on fear of crime among women. Lastly, this study found that neither direct nor indirect victimisation has an impact on fear of crime.Nesta pesquisa, as perceções dos estudantes universitários sobre o medo do crime são examinadas em termos de sexo, nacionalidade, área de moradia, estado civil, vitimização e desordem. O objetivo da pesquisa é observar o medo do crime em estudantes universitários, segundo os parâmetros-chave referidos na literatura. Os dados foram obtidos junto de 330 universitários de uma das universidades estaduais por meio de inquérito. Os resultados bivariados e multivariados mostram que os alunos do sexo feminino têm mais medo do crime em comparação com os alunos do sexo masculino. O medo do crime é maior entre os estudantes turcos do que entre os estudantes cipriotas turcos. Além disso, descobriu-se que uma alta perceção dos fatores de transtorno tem impacto sobre o medo do crime entre as mulheres. Por último, este estudo concluiu que nem a vitimização direta nem indireta têm impacto no medo do crime.Dans cette recherche, les perceptions des étudiants universitaires de la peur du crime sont examinées en termes de sexe, nationalité, lieu de vie, état matrimonial, victimisation et désordre. L’objectif de la recherche est d’observer les paramètres clés de la littérature sur la peur du crime sur les étudiants universitaires. Les données ont été obtenues auprès de 330 étudiants universitaires qui étudient dans l’une des universités d’Etat grâce à une enquête. Les résultats bivariés et multivariés montrent que les étudiantes ont une plus grande peur du crime que les étudiants de sexe masculin. La peur du crime est plus grande chez les étudiants turcs que chez les étudiants chypriotes turcs. De plus, on constate qu’une perception élevée des facteurs de désordre a un impact sur la peur du crime chez les femmes. Enfin, cette étude a révélé que ni la victimisation directe ni indirecte n’ont d’incidence sur la peur du crime.En esta investigación, se examinan las percepciones de los estudiantes universitarios sobre el miedo a la delincuencia en términos de sexo, nacionalidad, lugar de residencia, estado civil, victimización y desorden. El objetivo de la investigación es observar los parámetros clave de la literatura delictiva sobre el miedo en los estudiantes universitarios. Los datos se obtuvieron de 330 estudiantes universitarios que estudian en una de las universidades estatales a través de una encuesta. Los resultados bivariados y multivariados muestran que las estudiantes experimentan un mayor miedo al crimen en comparación con los estudiantes varones. El miedo al crimen es mayor entre los estudiantes turcos que entre los estudiantes turcochipriotas. Además, se encuentra que una alta percepción de los factores de trastorno tiene un impacto en el miedo al delito entre las mujeres. Por último, este estudio encontró que ni la victimización directa ni indirecta tienen un impacto sobre el miedo al delito

Determination of acid dissociation constants of some hydroxy schiff bases by pH-metric titration. application of the Hammett equation

Ten compounds hydroxybases Schiff were synthesized from salicylaldehyde and the substituted aniline in the ortho, meta and para methyl groups, chloro and nitro. To study the effect of substituents on their acidities, the acid dissociation constants( Ka) of salicylideneaniline and some of their derivatives were determined by pH-metric titration. All Schiff bases were titrated with NaOH in mixtures of 60% dioxane-water and 60% ethanol-water at a constant ionic strength and a temperature of 25 °C. The calculated acidity constants, pKa values were evaluated in protonation –deprotanation mechanisms. The Hammett relationship linear type was applied to quantify the effects of substituents on the acidity of hydroxybases Schiff, and therefore a reaction constant, ρ is calculated

Gray value measurement for the evaluation of local alveolar bone density around impacted maxillary canine teeth using cone beam computed tomography

To investigate whether any relationship between local alveolar bone density and maxillary canine impaction using gray values from cone beam computed tomography. The cone beam computed tomography images of 151 patients were retrospectively evaluated. Maxillary canine was defined as an impacted tooth when root formation was complete and the patient?s age older than 13 or the other side of the maxillary canine has completely erupted. Similarly, complete eruption was defined as the tooth in its expected occlusion and position. Using the cone beam computed tomography software, the region of interest which was 5 mm2 in area, was placed in the trabecular bone on cross sectional cone beam computed tomography images and the gray value measurements were recorded. After measuring the gray values of all the teeth, the images were grouped according to the field of view size. Comparison of the gray values of impacted and non-impacted teeth was made between images with the same field of view size. A total of 151 patients, 101 (66.9%) female and 50 (33.1%) male, were included in the study. The mean age of the patients was 24.94 ±13.9. In images with a 40X40 field of view, the gray values of the impacted canine teeth were higher than the gray values of the non-impacted ones and statistically significant difference was found between them (p=0.003). However no statistically significant difference was found between the gray values of impacted and non-impacted canine teeth in 60x60 and 100x50 field of view (p=0.197, p=0.170, respectively). We suggest using the smallest field of view size when evaluating bone density using gray values from cone beam computed tomography images and we support the idea that the local increased bone density may influence on impaction

Proposing Researcher Brand Equity Index in Hospitality and Tourism

Purpose: This study proposes a holistic model to rank and evaluate researchers’ performance. This holistic model is developed by focusing on brand equity, which includes three components of perceived quality, brand image, and brand loyalty. Design/methodology/approach: To show how the model works, two pseudo cases are presented. Findings: This model encourages researchers to conduct more interdisciplinary research and collaborate with researchers from diverse backgrounds. Since the model includes publication attributes identified by researchers in the publication processes, it allows researchers to strengthen their brand equity score or performance. . Practical Implications: The model is applicable not only to the fields of hospitality and tourism but also to other disciplines. Originality/Value: As one of the first study in the field, this research introduces a holistic model to rank and evaluate researchers’ performance

CFD study of the impact of the deviation on the mass flow inlet on winding hot-spot temperature of a power transformer using mineral and ester oils

This work presents a study where a deviation on the mass flow rate in adjacent sectors of the winding is considered. A CFD model was developed for this study, where heat transfer between sectors is enabled due to the lack of thermal symmetry, and the goal of this study is to determine whether this effect can be neglected or not. To carry out this study, a Low Voltage Winding of a 100 MVA power transformer was selected. This transformer has been manufactured and tested by BEST Transformers, and the results obtained from the heat run test were used to validate the CFD model. The study also considered an alternative dielectric liquid, natural ester, in order to estimate if the different thermal and hydraulic conditions can affect to the relevance of the studied effect. The CFD simulations have been carried out with ANSYS Fluent. The results showed a deviation of 3-4% of the heat dissipated due to the non-symmetric conditions with a 10% of mass flow deviation, which is the heat transfer between the adjacent sectors. This effect is identical when considering mineral oil or natural ester. The results shows there is a small impact of the winding temperatures due to this effect, and that it can be considered negligible.Part of the work was performed during secondments between BEST Transformers and the University of Cantabria executed in the framework of the BIOTRAFO project “Raising knowledge and developing technology for the design and deployment of high-performance power transformers immersed in biodegradable fluids”, H2020-MSCA-RISE2018- 823969, 2019-21. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 823969. Also, we acknowledge the support of the Spanish Ministry of Science and Innovation by means of the National Research Project Asset management of biodegradable-fluid-based transformers (PID2019-107126RB-C22/AEI/ 10.13039/501100011033

Revisiting the link between business strategy and performance: Evidence from hotels

This paper aims to investigate the competitive success factors for hotel companies and examine the link between business strategy and performance. Using a structured questionnaire, the researchers collected data from hotel managers in Spain. Study results suggest that a firm’s assets and strategies have a greater influence on performance than industry forces do. This lack of direct influence by industry forces is due to the sector’s specific characteristics, which cannot be overlooked during analysis. Based on these research findings, theoretical and managerial implications and future research are presented

Performance analysis of natural, synthetic and mineral oil in a 100 MVA power transformer

The power transformer lifespan depends on the dielectric capacity of its insulation system, mainly of the paper. Integrity of this material depends significantly on the cooling capacity of the oil used to cool it. Currently, ester-based fluids are being researched with the intention to substitute the traditional cooling liquid in power transformers, the mineral oil. Here, cooling capacity of two different ester-based fluids, a synthetic and anatural esters, is compared with that of a mineral oil. To carry out this task, CFD results of a low voltage winding of a 100 MVA power transformer jointly with the experimental ones get from a heat-run test done in this transformer are used. This winding has an axial cooling system in ON regime. As a result of this study, it can be inferred that alternative liquids could be used with high load levels (rated power or higher) since no significant changes in the temperatures distribution of the winding cooled with these fluids in comparison with that get with mineral oil are appreciated.The authors of this research wish to thank for its financial support: - The European Union by means of the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 823969. This grant fund the European project Biotrafo: raising knowledge and developing technology for the design and deployment of high performance power transformers immersed in biodegradable fluids; European Commission, h2020-mscarise-2018- 823969; 2019-21 - The Spanish Ministry of Science, Innovation and Universities by means of the National Research Project Improvement of Insulation Systems of Transformers through Dielectric Nanofluids (DPI2015-71219-C2-1- R). - The Universities and Reseach Council of the Government of Cantabria by means of the grant Fluidos biodegradables en transformadores eléctricos de potencia: impregnación de dieléctricos sólidos y modelado térmico con THNM, VP32, 2019-2

Depression and Sleep Quality in Patients with Restless Legs Syndrome

Objective Restless Legs Syndrome (RLS) is a common neurological disorder that affects patients’ sleep, emotional state and daily life negatively. In this study it was aimed to determine the sleep quality, daytime sleepiness and depression frequency in patients with RLS and their relation with duration and severity of illness. Materials and Methods In our center, 41 patients with primary RLS diagnosis were included in the study. Patients were divided into groups as mild, moderate, severe and very severe, according to the RLS severity scale of the International Restless Legs Syndrome Study Group. Pittsburgh Sleep Quality Index, Epworth Sleepiness Scale, and Beck Depression Inventory were filled in by all the patients, including identity and sociodemographic data with illness information. Statistical analysis was performed among groups divided according to disease severity. Depressive symptoms of the disease duration and its relation with sleep problems were investigated. Results In this study 41 patients, 30 (73.2%) female, 11 (26.8%) male, were included. Of the patients participating in the study, 2 patients (4.9%) had mild RLS while 7 (17.1%) were very severely ill. Fourteen patients (34.1%) had moderate disease and 18 (43.9%) had severe disease. Bad sleep quality was found in 68.3% (n=28) of patients with RLS, excessive daytime sleepiness in 14.6% (n=6) severe depression in 7.3% (n=3) and totally 29.3% of patients (n=12) depressive symptoms were observed. As the severity of illness increased, sleep quality deteriorated and depressive symptoms increased (p<0.01). Conclusion Most of the RLS patients had poor sleep quality, a significant amount of daytime excessive sleepiness, and about one third of them had depression. As the duration and severity of the disease increases, the intensity of depressive symptoms increases. Remembering that RLS may have serious consequences and effective treatment of depression when accompanied should be planned without losing time

Customer relationship management research in tourism and hospitality: a state-of-the-art

Purpose: This study aimed to provide a critical review of the evolution of customer relationship management (CRM) research in the hospitality and tourism field. Design/methodology/approach: The study conducted a thorough systematical literature review by collecting papers from 14 leading tourism and hospitality journals. The examination of the literature is first based on the evolution of CRM notion and its definitions. Next, CRM studies in the literature that are related to hospitality and tourism were assessed based on their timelines and themes. Thirdly, the studies were classified based on CRM components and its impacts on firms’ performances. Findings: The literature review provided an in-depth understanding on the progress of CRM based on the selected topics and suggests a redesigned research agenda for scholars, graduate students, and practitioners. Implications: This study provides new and meaningful avenues for further research in CRM in hospitality and tourism area. Originality/value: CRM has a key role in business performance and increased customer satisfaction and retention, specifically in the context of the service industry. To date, scholars have produced an abundant number of CRM related studies in tourism and hospitality journals. In this study, the progress of CRM research conducted in the tourism and hospitality sector is critically reviewed

OSCAR-QUBE: student made diamond based quantum magnetic field sensor for space applications

Project OSCAR-QUBE (Optical Sensors Based on CARbon materials - QUantum BElgium) is a project from Hasselt University and research institute IMO-IMOMEC that brings together the fields of quantum physics and space exploration. To reach this goal, an interdisciplinary team of physics, electronics engineering and software engineering students created a quantum magnetometer based on nitrogen-vacancy (NV) centers in diamond in the framework of the Orbit-Your-Thesis! programme from ESA Education. In a single year, our team experienced the full lifecycle of a real space experiment from concept and design, to development and testing, to the launch and commissioning onboard the ISS. The resulting sensor is fully functional, with a resolution of < 300 nT/ sqrt(Hz), and has been gathering data in Low Earth Orbit for over six months at this point. From this data, maps of Earth’s magnetic field have been generated and show resemblance to onboard reference data. Currently, both the NV and reference sensor measure a different magnetic field than the one predicted by the International Geomagnetic Reference Field. The reason for this discrepancy is still under investigation. Besides the technological goal of developing a quantum sensor for space magnetometry with a high sensitivity and a wide dynamic range, and the scientific goal of characterizing the magnetic field of the Earth, OSCAR-QUBE also drives student growth. Several of our team members are now (aspiring) ESA Young Graduate Trainees or PhD students in quantum research, and all of us took part in the team competition of the International Astronautical Congress in October 2021, where we won the Hans Von Muldau award. Being an interdisciplinary team, we brought many different skills and viewpoints together, inspiring innovative ideas. However, this could only be done because of our efforts to keep up a good communication and team spirit. We believe that if motivated people work hard to improve the technology, we can change the way magnetometry is done in space