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Journal articles on the topic 'Contact'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

White, Tony. "The Contact Contract." Transactional Analysis Journal 31, no. 3 (2001): 194–98. http://dx.doi.org/10.1177/036215370103100308.

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2

Caccamo, Joseph. "Contact et contacter." Cahiers de Gestalt-thérapie 25, no. 1 (2010): 111. http://dx.doi.org/10.3917/cges.025.0111.

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3

Yang, Ai Mei, Gui Zhong Li, Shao Ying Zhen, and Lai Jun Liu. "Electrode Interface Polarization in BaTiO₃-Based PTC Ceramics." Key Engineering Materials 697 (July 2016): 248–52. http://dx.doi.org/10.4028/www.scientific.net/kem.697.248.

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Electrodes play a vital role on the electrical properties of positive temperature coefficient (PTC) ceramics. An ohmic contract between ceramics and electrodes is necessary for the PTC effect. In this work, silver mixed aluminium electrode and pure silver electrode were pasted on BaTiO3-based PTC ceramics, which results in an ohmic contact and non-ohmic contact, respectively. Impedance spectroscopy and dielectric and conductivity properties was investigated at different temperature for the two contacts. Small difference of electrical properties was found between the two contacts above the Curi

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4

Klaver, Karin, Ingrid Bakker, and Joop ten Dam. "Speelgroen: van contract naar contact." Tijdschrift voor gezondheidswetenschappen 92, no. 1 (2014): 15–18. http://dx.doi.org/10.1007/s12508-014-0009-z.

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5

Cheng, Weibin, and Chun Hao. "Case-Initiated COVID-19 Contact Tracing Using Anonymous Notifications." JMIR mHealth and uHealth 8, no. 6 (2020): e20369. http://dx.doi.org/10.2196/20369.

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We discuss the concept of a participatory digital contact notification approach to assist tracing of contacts who are exposed to confirmed cases of coronavirus disease (COVID-19); the approach is simple and affordable for countries with limited access to health care resources and advanced technology. The proposed tool serves as a supplemental contract tracing approach to counteract the shortage of health care staff while providing privacy protection for both cases and contacts. This tool can be deployed on the internet or as a plugin for a smartphone app. Confirmed cases with COVID-19 can use

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6

Fernandez Rico, J. E., A. Hernandez Battez, and D. Garcia Cuervo. "Rolling contact fatigue in lubricated contacts." Tribology International 36, no. 1 (2003): 35–40. http://dx.doi.org/10.1016/s0301-679x(02)00097-x.

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7

Cumberbatch, E., and G. Mahinthakumar. "Contact resistance for small contacts (MOSFET)." IEEE Transactions on Electron Devices 38, no. 12 (1991): 2669–72. http://dx.doi.org/10.1109/16.158689.

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8

Ciavarella, M. "Adhesive rough contacts near complete contact." International Journal of Mechanical Sciences 104 (December 2015): 104–11. http://dx.doi.org/10.1016/j.ijmecsci.2015.10.005.

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9

Gu, Yungao, Junfeng Li, Jing Yang, Haojie Xia, and Xue Chang. "Simulation Study of AC Contactor Dynamic Contacts Contact Pressure Based on ADAMS." MATEC Web of Conferences 22 (2015): 02024. http://dx.doi.org/10.1051/matecconf/20152202024.

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10

Sheremet, V. N. "Metrological aspects of studying the specific contact resistivity of ohmic contacts by using the four-contact method." Semiconductor Physics Quantum Electronics and Optoelectronics 17, no. 4 (2014): 394–97. http://dx.doi.org/10.15407/spqeo17.04.394.

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11

Biboulet, N., L. Houpert, and AA Lubrecht. "Contact stress and rolling contact fatigue of indented contacts: Part I, numerical analysis." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 227, no. 4 (2012): 310–18. http://dx.doi.org/10.1177/1350650112462954.

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12

Yang, Xueming, Xinyao Zhang, and Bingyang Cao. "The Effect of Thermal Contact Number on the Tube–Tube Contact Conductance of Single-Walled Carbon Nanotubes." Nanomaterials 9, no. 3 (2019): 477. http://dx.doi.org/10.3390/nano9030477.

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The contact conductance of single, double, and triple thermal contacts of single-walled carbon nanotubes (SWCNTs) was investigated using molecular dynamics simulations. Our results showed that the effect of the thermal contact number on the contact conductance was not as strong as previously reported. The percentages of contact conductance of double and triple thermal contacts were about 72% and 67%, respectively, compared to that of a single thermal contact. Moreover, we found that the contact conductance of the double and triple thermal contacts was associated with the SWCNT length and the p

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13

SMIESZEK, T., E. U. BURRI, R. SCHERZINGER, and R. W. SCHOLZ. "Collecting close-contact social mixing data with contact diaries: reporting errors and biases." Epidemiology and Infection 140, no. 4 (2011): 744–52. http://dx.doi.org/10.1017/s0950268811001130.

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SUMMARYThe analysis of contact networks plays a major role to understanding the dynamics of disease spread. Empirical contact data is often collected using contact diaries. Such studies rely on self-reported perceptions of contacts, and arrangements for validation are usually not made. Our study was based on a complete network study design that allowed for the analysis of reporting accuracy in contact diary studies. We collected contact data of the employees of three research groups over a period of 1 work week. We found that more than one third of all reported contacts were only reported by o

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14

Jiang, Lili, Lifeng Wang, Xiaodong Huang, Zhen Huang, and Min Huang. "Implementation of Highly Reliable Contacts for RF MEMS Switches." Micromachines 15, no. 1 (2024): 155. http://dx.doi.org/10.3390/mi15010155.

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A contact is the key structure of RF MEMS (Radio Frequency Microelectromechanical System) switches, which has a direct impact on the switch’s electrical and mechanical properties. In this paper, the implementation of highly reliable contacts for direct-contact RF MEMS switches is provided. As a soft metal material, gold has the advantages of low contact resistance, high chemical stability, and mature process preparation, so it is chosen as the metal material for the beam structure as well as the contacts of the switch. However, a Pt film is used in the bottom contact area to enhance the reliab

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15

Ervin, Matthew H., Kenneth A. Jones, Un Chul Lee, Taniya Das, and M. C. Wood. "An Approach to Improving the Morphology and Reliability of n-SiC Ohmic Contacts to SiC Using Second-Metal Contacts." Materials Science Forum 527-529 (October 2006): 859–62. http://dx.doi.org/10.4028/www.scientific.net/msf.527-529.859.

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While nickel ohmic contacts to n-type silicon carbide have good electrical properties, the physical contact, and therefore the reliability, can be poor. An approach is described for using the good electrical properties of Ni ohmic contacts while using another metal for its desired mechanical, thermal and/or chemical properties. In the present work, once the Ni contacts have been annealed forming nickel silicides and achieving low contact resistance, they are etched off. Removing the primary Ni contacts also eliminates the poor morphology, voids, and at least some of the excess carbon produced

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16

Heriana, Cecep, Faridah Binti Moh. Said, Farzana Yasmin, Dieta Nurrika, and Purwo Setiyo Nugroho. "EPIDEMIOLOGICAL CONTACT (EPICONTACT) INVESTIGATION OF COVID-19 AT ISLAMIC BOARDING SCHOOLS IN KUNINGAN REGENCY, INDONESIA." Indonesian Journal of Public Health 18, no. 3 (2023): 395–408. http://dx.doi.org/10.20473/ijph.v18i3.2023.395-408.

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Introduction: COVID-19 has spread throughout the world with more than 61, 27 million patients infected, including in education clusters that implement boarding schools. Contact investigations on the cluster are necessary to control the spread of the virus. Aims: To describe the epidemiological contact pattern of investigation results in the Islamic Boarding School cluster in Kuningan Regency. Methods: The design of this study is descriptive with epidemiological approach. The population is all students of Pondok Pesantren X, as many as 164 students, a sample of 157 students who are positive for

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17

Biboulet, N., A. A. Lubrecht, and L. Houpert. "Contact pressure in indented elastohydrodynamic lubrication contacts." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 222, no. 3 (2008): 415–21. http://dx.doi.org/10.1243/13506501jet324.

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18

Oh, S., M. D. Bryant, and Y. G. Yune. "Steady state contact pressures in electrical contacts." IEEE Transactions on Components, Hybrids, and Manufacturing Technology 11, no. 1 (1988): 106–11. http://dx.doi.org/10.1109/33.2972.

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19

McBride, J. W. "Electrical contact bounce in medium-duty contacts." IEEE Transactions on Components, Hybrids, and Manufacturing Technology 12, no. 1 (1989): 82–90. http://dx.doi.org/10.1109/33.19016.

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20

Seik Oh, M. Bryant, and Young Yune. "Steady State Contact Pressures in Electrical Contacts." IEEE Transactions on Components, Hybrids, and Manufacturing Technology 11, no. 1 (1988): 106–11. http://dx.doi.org/10.1109/tchmt.1988.1134874.

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21

Ren, Wanbin, Yu Chen, Zhaobin Wang, Shengjun Xue, and Xu Zhang. "Electrical Contact Resistance of Coated Spherical Contacts." IEEE Transactions on Electron Devices 63, no. 11 (2016): 4373–79. http://dx.doi.org/10.1109/ted.2016.2612545.

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22

Chua, S. J., and S. H. Lee. "Contact resistivity measurement using four circular contacts." Solid-State Electronics 35, no. 9 (1992): 1331–35. http://dx.doi.org/10.1016/0038-1101(92)90168-c.

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23

Norberg, G., S. Dejanovic, and H. Hesselbom. "Contact resistance of thin metal film contacts." IEEE Transactions on Components and Packaging Technologies 29, no. 2 (2006): 371–78. http://dx.doi.org/10.1109/tcapt.2006.875891.

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24

Guo, Qiang-Hui, and Lisa H. Sun. "Combinatorics of Contacts in Protein Contact Maps." Bulletin of Mathematical Biology 80, no. 2 (2017): 385–403. http://dx.doi.org/10.1007/s11538-017-0380-4.

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25

Shi, Xi, and Andreas A. Polycarpou. "Measurement and Modeling of Normal Contact Stiffness and Contact Damping at the Meso Scale." Journal of Vibration and Acoustics 127, no. 1 (2005): 52–60. http://dx.doi.org/10.1115/1.1857920.

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Modeling of contact interfaces that inherently include roughness such as joints, clamping devices, and robotic contacts, is very important in many engineering applications. Accurate modeling of such devices requires knowledge of contact parameters such as contact stiffness and contact damping, which are not readily available. In this paper, an experimental method based on contact resonance is developed to extract the contact parameters of realistic rough surfaces under lightly loaded conditions. Both Hertzian spherical contacts and flat rough surfaces in contact under normal loads of up to 100

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26

Budhraja, Vinay, Srinivas Devayajanam, and Prakash Basnyat. "Simulation Results: Optimization of Contact Ratio for Interdigitated Back-Contact Solar Cells." International Journal of Photoenergy 2017 (2017): 1–10. http://dx.doi.org/10.1155/2017/7818914.

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In the fabrication of interdigitated back contact (IBC) solar cells, it is very important to choose the right size of contact to achieve the maximum efficiency. Line contacts and point contacts are the two possibilities, which are being chosen for IBC structure. It is expected that the point contacts would give better results because of the reduced recombination rate. In this work, we are simulating the effect of contact size on the performance of IBC solar cells. Simulations were done in three dimension using Quokka, which numerically solves the charge carrier transport. Our simulation result

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27

Songane, Mario, Boris Tchakounte Youngui, Albert Mambo, et al. "Using an app for COVID-19 contact tracing costs less per person traced than manual tracing: microcosting analysis of a randomised trial in Cameroon." BMJ Public Health 2, Suppl 1 (2025): e001064. https://doi.org/10.1136/bmjph-2024-001064.

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IntroductionSARS-CoV-2 contact tracing in Cameroon has been done manually using paper forms and phone calls. However, there were reports of inaccurate contact details, resulting in delays in identifying and testing contacts. A recently introduced digital contact-tracing module using the Mamal Pro app automatically sends SMS messages to notify all reported contacts and the district unit. We assessed the total costs, cost per contact reached, tested and found SARS-CoV-2-positive for both manual (standard of care, SOC) and app-based (intervention, ITV) contact-tracing approaches.MethodsA cluster

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28

Cichoň, Stanislav, Petr Macháč, and Jiří Vojtík. "Ni, NiSi₂ and Si Secondary Ohmic Contacts on SiC with High Thermal Stability." Materials Science Forum 740-742 (January 2013): 797–800. http://dx.doi.org/10.4028/www.scientific.net/msf.740-742.797.

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A method for formation of enhanced ohmic contacts on SiC for operation under adverse conditions has been studied. Ni, NiSi2 and Si ohmic contacts were prepared and tested at 300°C on air for hundreds of hours. NiSi2 and Si showed high thermal stability. Moreover, also the so called secondary contacts showed preserved good electrical and structural properties in the thermal test. The secondary ohmic contacts are formed from original ohmic contacts after they are etched off and replaced with new ones. Secondary ohmic contacts originate in a certain surface modification of the SiC substrate creat

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29

Li, Rui, Lei Zhang, LiangYuan Chen, and DaJian Li. "Analysis and Treatment of Abnormal Defects in Transformer Oil Chromatography." Journal of Physics: Conference Series 2310, no. 1 (2022): 012053. http://dx.doi.org/10.1088/1742-6596/2310/1/012053.

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Abstract This article analyzes the cause of an abnormal defect in the oil chromatogram of a transformer, and puts forward control measures and suggestions. It is analyzed that the cause of the abnormal oil chromatogram of phase A and B of the main transformer is the poor contact o f the dynamic and static contacts of the unloaded tap changer, high temperature and overheatin g, and the development of contact ablation, resulting in abnormal oil chromatogram. The cause of the ablation of the dynamic and static contacts of the no-load tap-changer may be due to the installation and transportation (

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30

Kwok, Kin On, Ben Cowling, Vivian Wei, Steven Riley, and Jonathan M. Read. "Temporal variation of human encounters and the number of locations in which they occur: a longitudinal study of Hong Kong residents." Journal of The Royal Society Interface 15, no. 138 (2018): 20170838. http://dx.doi.org/10.1098/rsif.2017.0838.

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Patterns of social contact between individuals are important for the transmission of many pathogens and shaping patterns of immunity at the population scale. To refine our understanding of how human social behaviour may change over time, we conducted a longitudinal study of Hong Kong residents. We recorded the social contact patterns for 1450 individuals, up to four times each between May 2012 and September 2013. We found individuals made contact with an average of 12.5 people within 2.9 geographical locations, and spent an average estimated total duration of 9.1 h in contact with others durin

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31

Broué, Adrien, Jérémie Dhennin, Pierre-Louis Charvet, et al. "Comparative study of RF MEMS micro-contact materials." International Journal of Microwave and Wireless Technologies 4, no. 4 (2012): 413–20. http://dx.doi.org/10.1017/s1759078711001140.

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A systematic comparison between several pairs of contact materials based on an innovative methodology early developed at NOVA MEMS is hereby presented. The technique exploits a commercial nanoindenter coupled with electrical measurements, and test vehicles specially designed to investigate the underlying physics driving the surface-related failure modes. The study provides a comprehensive understanding of micro-contact behavior with respect to the impact of low-to-medium levels of electrical current. The decrease of the contact resistance, when the contact force increases, is measured for cont

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32

Zhao, Wenze, Jiaxing Yan, Xin Wang, Wenhua Li, Xinglin Yang, and Weiming Wang. "Study on Relay Contact Bounce Based on the Adaptive Weight Rotation Template Matching Algorithm." Applied Sciences 14, no. 6 (2024): 2341. http://dx.doi.org/10.3390/app14062341.

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In order to analyze the relay action process from an imaging perspective and further investigate the bounce phenomenon of relay contacts during the contact process, this paper utilizes a high-speed shooting platform to capture images of relay action. In light of the situation where the stationary contact in the image is inclined and continuously changing, a rotation template matching algorithm based on adaptive weight is proposed. The algorithm identifies and obtains the inclination angle of the stationary contact, enabling the study of the relay contact bounce process. By extracting contact b

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33

CHEN, S. C., and Z. S. YOU. "Social contact patterns of school-age children in Taiwan: comparison of the term time and holiday periods." Epidemiology and Infection 143, no. 6 (2014): 1139–47. http://dx.doi.org/10.1017/s0950268814001915.

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SUMMARYSchool closure is one of the most common interventions in the early weeks of an influenza pandemic. Few studies have investigated social contact patterns and compared individual student contact characteristics during the school term and holiday periods in Taiwan. Here, we conducted a well-used questionnaire survey in a junior high school (grades 7–8) in June 2013. All 150 diary-based effective questionnaires covering conversation and skin-to-skin contact behaviour were surveyed. Two questionnaires for each participant were designed to investigate the individual-level difference of conta

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34

曹, 云东. "DC Contactor Contact with Soft Connection." Transmission and Distribution Engineering and Technology 02, no. 01 (2013): 17–21. http://dx.doi.org/10.12677/tdet.2013.21003.

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35

Shen, Fei, and Liao-Liang Ke. "Numerical Study of Coupled Electrical-Thermal-Mechanical-Wear Behavior in Electrical Contacts." Metals 11, no. 6 (2021): 955. http://dx.doi.org/10.3390/met11060955.

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Electrical contacts involve complicated electrical, thermal, and mechanical phenomena. Fretting wear as a surface damage mechanism significantly weakens the performance of electrical contact components. In this study, a numerical approach is developed to investigate the electrical-thermal-mechanical-wear coupling behavior of electrical contacts. An electrical contact conductance law is used with the current conservation model to evaluate the electrical behavior. A transient heat transfer model, including the Joule heating behavior and a thermal contact conductance law, is employed to calculate

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36

Warmuth, A. R., P. H. Shipway, and W. Sun. "Fretting wear mapping: the influence of contact geometry and frequency on debris formation and ejection for a steel-on-steel pair." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 471, no. 2178 (2015): 20140291. http://dx.doi.org/10.1098/rspa.2014.0291.

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This paper examines the influence of contact geometry and oscillation frequency in a steel cylinder-on-steel flat fretting contact, with contact geometry being varied via the cylinder radius. Fretting frequency did not significantly impact the wear behaviour for more-conforming contacts, but did so for less-conforming contacts where, at high frequency, the wear rate is approximately 50% of that observed for low-frequency fretting. It is proposed that frequency and contact conformity fundamentally control wear behaviour through influence of both the debris type and the retention or ejection of

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37

Banerjee, Sneha, and Peng Zhang. "Review of recent studies on nanoscale electrical junctions and contacts: Quantum tunneling, current crowding, and interface engineering." Journal of Vacuum Science & Technology A 40, no. 3 (2022): 030802. http://dx.doi.org/10.1116/6.0001724.

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The study of charge carrier transport at nanoscale electrical contacts is crucial for the development of next-generation electronics. This paper reviews recent modeling efforts on quantum tunneling, current crowding, and contact resistance across electrical interfaces with nanometer scale dimensions. A generalized self-consistent model for quantum tunneling induced electron transport in metal–insulator–metal (MIM) junctions is summarized. Rectification of a dissimilar MIM junction is reviewed. A modified two-dimensional (2D) transmission line model is used to investigate the effects of spatial

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38

Musa, Adesola, Kazeem Osuolale, Abideen Salako, Adekunle Ifeta, and Babatunde Salako. "Developing a Novel Contact Tracing Mobile Application for Coronavirus Disease 2019 (COVID-19) for Improving Testing Capacity and Controlling the Spread of COVID-19 in Nigeria." Science Journal of Public Health 12, no. 5 (2024): 169–77. http://dx.doi.org/10.11648/j.sjph.20241205.13.

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In this study, a novel contact tracing model that leverages smartphone technology to enhance efficiency, reduce costs, and extend the duration of contact tracing efforts is developed. This model utilizes smartphones as identification systems, collecting data on the proximity of other smartphone users through integrated Bluetooth and GPS technology. The study examines the frequency, duration, and proximity of interactions between smartphone devices in a clinical setting, highlighting potential implications for infectious disease transmission to pilot the mobile application developed. Contact da

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39

Rinnerthaler, G., B. Geiger, and J. V. Small. "Contact formation during fibroblast locomotion: involvement of membrane ruffles and microtubules." Journal of Cell Biology 106, no. 3 (1988): 747–60. http://dx.doi.org/10.1083/jcb.106.3.747.

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We have correlated the motility of the leading edge of fibroblasts, monitored by phase-contrast cinematography, with the relative distributions of several cytoskeletal elements (vinculin, tubulin, and actin) as well as with the contact patterns determined by interference reflection microscopy. This analysis has revealed the involvement of both ruffles and microspikes, as well as microtubules in the initiation of focal contact formation. Nascent vinculin sites within the leading edge or at its base, taken as primordial cell-substrate contacts, were invariably colocalized with sites that showed

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40

Sulistio, Sulistio, Suryanto Suryanto, Abdullah Hadziq, and Sefa Bulut. "The mediating effect of group identity and religious fundamentalism on the association of intergroup contact with prejudice." Psikohumaniora: Jurnal Penelitian Psikologi 5, no. 2 (2020): 169–84. http://dx.doi.org/10.21580/pjpp.v5i2.6486.

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Contact between groups continues to be recognized as a variable that affects prejudice. The effectiveness of the impact of such contacts on prejudice is influenced by other variables, according to the characteristics of the group. This study aims to determine the effect of group identity mediation and religious fundamentalism on the influence of intergroup contact on the prejudice of transnational Islamic groups against moderate Islamic ones. The research subjects were selected randomly from 365 members of Jama’ah Tabligh, a transnational Islamic group in Semarang, Indonesia. The research dat

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Tausch, Nicole, Miles Hewstone, Katharina Schmid, Joanne Hughes, and Ed Cairns. "Extended contact effects as a function of closeness of relationship with ingroup contacts." Group Processes & Intergroup Relations 14, no. 2 (2011): 239–54. http://dx.doi.org/10.1177/1368430210390534.

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Using survey data from Catholics and Protestants in Northern Ireland ( N = 428), the authors examined the effects of extended contact via different types of ingroup contacts (neighbors, work colleagues, friends, and family members) and tested whether closeness to ingroup contacts moderated the effects of extended contact on outgroup trust. Results demonstrated that extended contact effects varied as a function of the relationship to ingroup contacts, and that extended contact interacted with closeness ratings in predicting outgroup trust. Consistent with hypotheses, extended contacts via more

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42

Lv, Zhiyong, Xiangjun Wang, Jinwu Zhuang, et al. "A New Contact Structure and Dielectric Recovery Characteristics of the Fast DC Current-Limiting Circuit Breaker." Sensors 25, no. 5 (2025): 1538. https://doi.org/10.3390/s25051538.

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In order to solve the problem of slow dielectric recovery caused by large arc energy when interrupting a high rising rate fault current in a fast DC current-limiting circuit breaker (FDCCLCB), a new contact structure with multi-point static contacts in parallel is proposed. Based on the principle of parallel multi-point contacts, the new structure can form the arc mode during multi-point arcing when the contacts are separated, reduce the arc energy of each finger contact, effectively reduce the ablation effect of the arc on the contact, and improve dielectric recovery ability after the arcing

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43

Wang Xiao, Song Shi-qi, Ping Zi-jian, Sheng Si-yuan, Shang Xian-yi, and Chen Fan-xiu. "Contact force calculation and evolution analysis of granular systems based on Micro-CT experiment." Acta Physica Sinica 74, no. 1 (2025): 0. http://dx.doi.org/10.7498/aps.74.20241206.

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The calculation of inter- granule contact force in three-dimensional granular systems is a critical and challenging aspect of granular mechanics research. Taking two elastic rubber balls as research object, in-situ flat pressing of Micro-CT experiment is carried out. Based on the Hertzian contact theory and Tatara large deformation contact theory, the contact model of elastic balls is verified, and the theoretical formula of the contact force of elastic balls based on the experiment is obtained. Taking the three-dimensional granular systems as research object, in-situ probe loading experiment

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44

Toizumi, Michiko, Lay-Myint Yoshida, Motoi Suzuki, et al. "Infant contact in day-care centres in Vietnam: A cross-sectional study to understand infant infection risk." Wellcome Open Research 4 (June 11, 2019): 75. http://dx.doi.org/10.12688/wellcomeopenres.15238.2.

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Background: Infant contact information (skin-to-skin contact between infants and others) is important to understand Streptococcus pneumoniae transmission patterns. A few studies have investigated infant contact patterns by asking the mother/guardian to record all contacts a child makes in one day. However, this approach does not capture contact behaviour in day-care. Our study describes the frequency and nature of physical contacts of infants in day-care to understand infant infection risk in day-care in Nha Trang, Vietnam. Methods: This cross-sectional study enrolled infants aged <12 month

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45

Ibrahim, Fatima, Mohammed A Darma, Khadeejah L. Hamza, et al. "Challenges of contact tracing during COVID-19 pandemic response in a tertiary hospital in Northwestern Nigeria." Kanem Journal Medical Sciences 16, no. 2 (2023): 101–9. http://dx.doi.org/10.36020/kjms.2022.1602.004.

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Background: Contact tracing is a traditional pillar of infectious disease control, especially for illnesses involving direct transmission from person to person, such as COVID-19. Several challenges have arisen from COVID-19 contact tracing activities, particularly in low-resource settings. These include refusal of positive clients to disclose their close contacts, difficulties in conducting risk assessment for contacts traced, among others. Objectives: To explore the activities and identify challenges of contact tracing during COVID -19 pandemic response in a tertiary hospital in Northwestern

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46

Na, Moonkyong, In Ho Kang, Jeong Hyun Moon, and Wook Bahng. "Formation of the Uniform Interface Ni/4H-SiC Ohmic Contact with Titanium as Barrier Layer." Materials Science Forum 924 (June 2018): 397–400. http://dx.doi.org/10.4028/www.scientific.net/msf.924.397.

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Nickel (Ni) is the most widely used metal for the formation of ohmic contact on n-type SiC. However, the irregular contact can potentially cause degradation in the device performance. To form the uniform ohmic interface, titanium (Ti) was applied as a barrier layer. Ni/Ti/SiC and Ti/Ni/SiC contact metal structures were prepared, and ohmic contacts were formed using a rapid thermal annealing process. The interfacial properties of both contact metal structures were enhanced by applying the Ti layer. The specific contact resistance of ohmic contacts showed a slightly lower or similar value (~ low

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Xie, J., M. Pecht, A. Dasgupta, J. A. Swift, and S. J. Wallace. "A Statistical Mechanical Model of Electrical Carbon Fiber Contacts." Journal of Electronic Packaging 121, no. 4 (1999): 286–90. http://dx.doi.org/10.1115/1.2793854.

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This paper presents a model for electrical carbon fiber contacts. In the model, a statistically distributed fiber length was considered at contact surfaces. A technique of dealing with this kind of contact surfaces with statistically determined, or specifically undeterminable, geometry was developed. The results were compared with the experimental data obtained previously. Also, the contact behaviors of electrical carbon fiber contacts were discussed and some specific contact properties, which were also observed experimentally, were clarified. A contact resistance decreasing rate was defined i

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Yanjie, Wang, Xie Xulong, He Tianpeng, Liu Sijun, and Yu Wei. "Contact stress decomposition in large amplitude oscillatory shear of concentrated noncolloidal suspensions." Journal of Rheology 68, no. 4 (2024): 623–39. http://dx.doi.org/10.1122/8.0000790.

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The concentrated noncolloidal suspensions show complex rheological behavior, which is related to the existence of contact stress. However, determining the contact stress in time-varying flow like oscillatory shear is challenging. Herein, we propose a contact stress decomposition method to decompose the total stress directly into contact stress and hydrodynamic stress in large amplitude oscillatory shear (LAOS). The results of hydrodynamic stress and contact stress are consistent with those determined by the shear reversal experiment. The contact stress decomposition also explains the failure o

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Porret, Philippe. "Un contact sans contact ?" Les Lettres de la SPF N° 44, no. 1 (2021): 11–15. http://dx.doi.org/10.3917/lspf.044.0011.

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Verdier, Jesse Eduard, Sake Jan De Vlas, Inge D. Kidgell-Koppelaar, and Jan Hendrik Richardus. "Risk factors for tuberculosis in contact investigations in Rotterdam, the Netherlands." Infectious Disease Reports 4, no. 2 (2012): 26. http://dx.doi.org/10.4081/idr.2012.e26.

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Contact investigations around tuberculosis patients enable early detection of infection and disease, and prevention of secondary tuberculosis cases. We aim to identify risk factors for <em>M. tuberculosis </em>transmission to contacts of tuberculosis patients, based on unique data from routine contact investigations by the Public Health Service in Rotterdam, the Netherlands, collected between 2001 and 2006. Through logistic regression analysis, we determined the effect of various risk factors on the chance of finding a latent tuberculosis (TB) infection or overt tuberculosis case a

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