Miracle-dz/UniFAR-FTUs huggingface dataset:
Improving Beam Alignment Accuracy in mmWave Communication Systems With Auxiliary Tasks

Beam alignment is essential for high-quality data transmission in millimeter wave (mmWave) communication systems. Recent studies have revealed that the beam alignment method can train a small-scale probing codebook that is customized to specific sites, and leverage the codebook measurements to determine the optimal transmit beam. However, existing approaches still necessitate a certain number of probing beams in order to achieve high-accuracy alignment. In this work, we propose a multi-task learning-based beam alignment method, leveraging channel reconstruction and contrastive representation as auxiliary tasks, to improve the primary task of joint probing codebook design and optimal beam selection. Specifically, we offer a channel reconstruction module that estimates the wireless channel with the probing measurements, to improve the channel sensing efficiency of the probing codebook. Likewise, we also expose a contrastive representation module to improve the beam selector's representation robustness against the noisy channel. Results obtained from simulations using realistic public datasets indicate that the proposed method surpasses current state-of-the-art beam alignment techniques. The proposed method demonstrates superior performance in terms of alignment accuracy, achieved throughput, and beam sweeping complexity.
Estimation of Wind Vector Profile Using a Hexarotor Unmanned Aerial Vehicle and Its Application to Meteorological Observation up to 1000 m above Surface

Small unmanned aerial vehicles (UAVs), also known as drones, have recently become promising tools in various fields. We investigated the feasibility of wind vector profile measurement using an ultrasonic anemometer installed on a 1-m-wide hexarotor UAV. Wind vectors measured by the UAV were compared to observations by a 55-m-high meteorological tower, over a wide range of wind speed conditions up to 11 m s−1, which is a higher wind speed range than those used in previous studies. The wind speeds and directions measured by the UAV and the tower were in good agreement, with a root-mean-square error of 0.6 m s−1 and 12° for wind speed and direction, respectively. The developed method was applied to field meteorological observations near a volcano, and the wind vector profiles, along with temperature and humidity, were measured by the UAV for up to an altitude of 1000 m, which is a higher altitude range than those used in previous studies. The wind vector profile measured by the UAV was compared with Doppler lidar measurements (collected several kilometers away from the UAV measurements) and was found to be qualitatively similar to that captured by the Doppler lidar, and it adequately represented the features of the atmospheric boundary layer. The feasibility of wind profile measurement up to 1000 m by a small rotor-based UAV was clarified over a wide range of wind speed conditions.
Contrast Source Inversion-Enhanced Synthetic Aperture Approach for Microwave Multilayered Subsurface Imaging

This article presents an inverse scattering analysis-enhanced radar imaging method by incorporating synthetic aperture radar (SAR) and contrast source inversion (CSI) to enhance the imaging accuracy of a microwave ground-penetrating radar (GPR) model. The GPR SAR propagation model could be accurately determined via the CSI optimization output, i.e., the electric total fields of all region of interest (ROI) cells and observation areas, which generate an accurate Green’s function as the propagation model in a heterogeneous background medium. Additionally, the scattered field, assuming a multilayered background, is reconstructed using a CSI scheme. Numerical tests based on the finite-difference time domain (FDTD) show that our proposed method considerably improves the reconstruction accuracy for target localization, even in highly heterogeneous multilayered background media.
Expression of Phospholipase D Family Member 6 in Bovine Testes and Its Molecular Characteristics

Spermatogonial stem cells (SSCs) are the only primitive spermatogonial cells in males that can naturally transmit genetic information to their offspring and replicate throughout their lives. Phospholipase D family member 6 (PLD6) has recently been found to be a surface marker for SSCs in mice and boars; however, it has not been validated in cattle. The results of reversed transcription-polymerase chain reaction (RT-PCR) and quantitative real-time PCR (qRT-PCR) found that the relative expression of the PLD6 gene in the testicular tissues of two-year-old Simmental calves was significantly higher than that of six-month-old calves. Immunofluorescent staining further verified the expression of PLD6 protein in bovine spermatogenic cells like germ cell marker DEAD box helicase 4 (DDX4, also known as VASA). Based on multiple bioinformatic databases, PLD6 is a conservative protein which has high homology with mouse Q5SWZ9 protein. It is closely involved in the normal functioning of the reproductive system. Molecular dynamics simulation analyzed the binding of PLD6 as a phospholipase to cardiolipin (CL), and the PLD6-CL complex showed high stability. The protein interaction network analysis showed that there is a significant relationship between PLD6 and piwi-interacting RNA (piRNA) binding protein. PLD6 acts as an endonuclease and participates in piRNA production. In addition, PLD6 in bovine and mouse testes has a similar expression pattern with the spermatogonium-related genes VASA and piwi like RNA-mediated gene silencing 2 (PIWIL2). In conclusion, these analyses imply that PLD6 has a relatively high expression in bovine testes and could be used as a biomarker for spermatogenic cells including SSCs.
Synchronization Analysis for Stochastic Delayed Multilayer Network With Additive Couplings

This paper is concerned with the synchronization of stochastic delayed multilayer networks with additive couplings. Multilayer networks are a kind of complex networks with different layers, which consist of different kinds of interactions or multiple subnetworks. Additive couplings are designed to capture the different layered connections. Based on additive couplings, several sufficient conditions are obtained to guarantee the synchronization of chaotic stochastic delayed coupled multilayer network. More specifically, on one hand, we obtain some sufficient conditions to guarantee that the stochastic multilayer network can be synchronized almost surely without control input. On the other hand, we propose three synchronization schemes by designing controllers. Scheme I: It is assumed that only a part of the nodes are allowed to be controlled directly. Scheme II: Control all nodes of the complex system by using only one controller. Scheme III: Pinning adaptive controller. Finally, an example and its simulations are given to show the effectiveness of our control schemes.
Means substitutability in personal significance restoration

Drawing on Significance Quest Theory, we hypothesized that when people experience a loss of significance related to a specific life domain, they will aim to restore their significance by acting in an extreme manner in a different life domain. To test this hypothesis, we ran two cross-sectional studies using samples of employed people in romantic relationships. Study 1 tested if people experiencing a loss of significance in the romantic relationship domain were more prone to extremism at work. Study 2 tested whether people experiencing work-related significance loss were more prone to engage in obsessive relational intrusion (ORI) toward their romantic partner. Results from both studies confirmed our hypothesis, suggesting that both amorous relationships and careers are perceived as fruitful in maintaining or restoring ones’ sense of personal significance, even if the original loss of significance is derived from an unrelated domain. Notably, this research represents one of the first tests of the key assumption of Significance Quest Theory entailing the substitutability of means through which one can attain or renew their sense of significance.
Retailer’s Service Quality & CSR as Antecedents of Retailer Personality & Customer Reactions: A Review

This research paper aims to assess the influence of Retail Service Quality and CSR as antecedents of Retailer Personality and Customer Reactions. Also, reviews were done for studies which implemented Analytic Hierarchy Process (AHP). The relationships and links were identified from a rigorous literature review. A conceptual model has been developed and proposed, with Retail Service Quality and CSR Policy of retailer as antecedents and Customer Reactions as consequences of Retailer Personality. Hypotheses were formulated, recommendations and Scope for future research were discussed.
Pengaruh Teknik Extinction terhadap Prokrastinasi Akademik Remaja di Korong Matua Nagari Sikucua Timur Kabupaten Padang Pariaman

This research was carried out based on the phenomenon that existed in Korong Matua Nagari Sikucua Timur, Padang Pariaman Regency which showed that there were teenagers in this Korong who were less responsible for their learning activities, were less able to choose their own learning activities and there were also teenagers who lacked initiative and lacked able to do the task independently. To increase the change in adolescent academic procrastination, one of the services provided in counseling guidance is implemented, namely group counseling. The goal to be achieved in this research is to find out whether there is a significant difference before and after the extinction technique is given to academic procrastination. This research belongs to the pre-experimental model of One Group Pretest Posttest Design. The population is all adolescents in Korong Matua at the junior and senior high school levels, 20 people, while the technique used in sampling is the Non-Random Sampling technique, namely Purposive Sampling where sampling is based on certain considerations, the sample in this study is 10 junior high and high school level youth person. The data collection instrument is a Likert scale. Data on adolescent learning independence was collected through a scale, then analyzed using the Wilcoxon Rank Test with the help of SPSS 22. The results of the research that are known from the results of the Z test (Wilcoxon) show the difference between pretest and posttest scores. From the results of the calculation of the Wilcoxon test, a significant p value of -2,805 was obtained. Based on the applicable provisions, it is known that the results of the Wilcoxon sig p-value test are 0.004 <α(α = 0.05), which means that Ha is accepted and Ho is rejected. This means that there is a change in Adolescent Academic Procrastination before and after being given the Extinction technique.
A wide depressed scar deformity treated with cutting wire and autologous fat graft: a case report

Scars are still a challenging problem in medical practice, despite advancements in treatment modalities. Numerous treatment modalities, ranging from simple revision, Z-plasty, and W-plasty to laser treatments, have been used to treat scar deformities. However, for wide depressed scars, additional methods are needed to completely restore the contour of the depression caused by tissue adhesion. We report on the case of a 34-year-old woman with a wide depressed scar deformity on the left upper buttock and the encouraging results of an autologous fat graft injection technique that utilized a cutting wire to form a pocket for the fat graft site, while simultaneously resolving the adhesion caused by the tissue. This method is safe and easily reproducible, making it a useful addition to the surgeon’s toolkit when dealing with such lesions.
Empowering Recreation in Urban Parks Using Digital Solutions: A Proposed Framework for Smart Urban Parks in The City of Tirana

A focus group with recreation administrators, physical activity outdoor trainers, and ICT specialists in Tirana has provided valuable insights into the needs and perspectives of the local community regarding parks and recreational facilities. The primary objective of this study was to gather community-specific data and identify special requirements and potential future implementations that combine smart solutions with park amenities. This approach recognizes that the conventional idea of parks and leisure is evolving in response to park visitors' changing demands and interests. The aim was to engage a diverse range of stakeholders, including park visitors, local residents, community organizations, and technology experts. This focus group served as a platform for open discussions, idea sharing, and collaborative decision-making. Participants had the opportunity to voice their opinions on various aspects of digital transformation, such as implementing interactive displays, developing mobile applications for park information and activities, integrating smart technology for enhanced safety measures, and promoting environmental sustainability through digital initiatives. The content analysis conducted during the focus group has yielded several recommendations for the municipality of Tirana to follow in order to digitally transform urban leisure parks into Smart Parks. The results of the analysis can assist local parks and recreation leaders in formulating strategies that engage the next generation of the community. By incorporating technology and outdoor exploration, these strategies can help highlight the value of park facilities and encourage visitors to actively participate in various activities. By integrating smart solutions, the park administration can create an environment that caters to the evolving interests and needs of the community, fostering greater interaction and enjoyment for all visitors. The administration of parks in Tirana should embrace a strategy that integrates technology and nature to create "Smart Parks. " These facilities can enhance adoption, profitability, and engagement
Real Time Screening and Trajectory Optimization of UAVs in Cluster Based on Improved Particle Swarm Optimization Algorithm

To solve the problem of selecting drones for passive positioning within unmanned aerial vehicle (UAV) swarm and optimizing corresponding trajectories. This article constructs a method for determining and optimizing the trajectory of UAVs based on an improved particle swarm optimization (PSO) algorithm. Firstly, the time difference of arrival (TDOA) positioning principle was introduced and corresponding algorithm models were organized. Afterwards, the objective function and constraint conditions for selecting drones and optimizing flight paths were designed. The correlation between the optimal solutions of the continuous time optimization problem is used to determine the UAV for positioning. This paper constructs the UAV determination process based on similarity screening. At the same time, combined with the characteristics of the problem to be optimized, the Particle Swarm Optimization (PSO) is improved from three aspects: updating the initial position of particles, improving the iteration formula and setting the adaptive termination condition. This paper further constructs the track optimization process based on improved particle swarm optimization. Through simulation experiments and algorithm comparison, it can be seen that the method constructed in this article can determine the drone used for positioning in real-time and optimize its spatial position. Compared to the selected drones and mainstream passive positioning methods, the method in this article reduces errors by more than 60% and 45%.
The Role of Technology in the Perpetration of Childhood Sexual Abuse: The Importance of Considering Both In-Person and Online Interactions

Child sexual abuse (CSA) is a pervasive global problem. To date, prevention efforts have largely focused on legislative efforts, parent and child education, and environmental protections. Due to the proliferation of the Internet, and especially since the COVID-19 pandemic, recent prevention efforts have focused on online CSA. However, the extent to which technology is being used in the perpetration of in-person, contact CSA remains unclear. This study examined the role of technology in the perpetration of in-person, contact CSA using a sample of 332 adult CSA survivors who completed an anonymous online survey. Overall, we found that only 8.5% of the sample reported that they met the perpetrator online through social media, chatrooms, and other online applications. When looking at the role of technology in the perpetration of the abuse, 35% reported texting with the perpetrator, 27% reported engaging in online chats, and 33% spoke to the perpetrator on the phone. Few participants reported sending (11%) or receiving (13%) photographs or videos that were sexual in nature. Technology use was reported more frequently in CSA involving adolescents than CSA involving children aged 12 and under. There were no differences in the use of technology based on the age of the person who perpetrated the CSA. These findings will be discussed as they pertain to prevention efforts for CSA.
ON GORENSTEIN DIAGONAL SUBALGEBRAS

Let R be a multigraded ring over a local ring. In this paper, we study the Gorenstein property of a diagonal subalgebra of R. Then we give a sufficient condition for this algebra to be Gorenstein. As an application, we apply our result to multi-Rees algebra and show that the diagonal subalgebra of a Gorenstein multi-Rees algebra is Gorenstein in the bigraded case.
Assessing the calibration differences in the reflective solar bands of Terra MODIS and Landsat-7 enhanced thematic mapper plus

Abstract. Long-term data records obtained from Earth observing sensors depend not only on the calibration accuracy of individual sensors but also on the consistency across instruments and platforms. Hence, sensor calibration intercomparison plays a vital role for a better understanding of various science products. The Moderate Resolution Imaging Spectroradiometer (MODIS) and enhanced thematic mapper plus (ETM+) on the Terra and Landsat 7 platforms have operated successfully since their launch, collecting measurements in the reflective solar and infrared parts of the spectrum. Terra MODIS has employed a reflectance-based calibration since beginning its mission. In the case of ETM+, a radiance-based calibration was employed until recent years, when a reflectance-based calibration was introduced. Being in the AM constellation with less than 30 min difference in overpass times, near-simultaneous Earth scene measurements can be effectively used to assess the calibration differences between the spectrally matching bands of these two instruments. The pseudoinvariant calibration sites (PICS) in the North African desert are widely used for on-orbit calibration and validation of satellite sensors. Four PICS from this region have been employed to assess the multitemporal reflectance differences. Correction for bidirectional reflectance, spectral response function mismatch, and impacts of atmospheric water-vapor have been incorporated to provide an assessment of the long-term stability of each spectral band and reflectance differences amongst them. Results indicate that the spectral bands of both instruments show a long-term stability to within 2% from 2000 to 2017. The top-of-atmosphere reflectances between the two instruments postcorrection agree to within 4%. Also included in this paper is a detailed discussion of various parameters contributing to the uncertainties of this cross-calibration. The techniques presented in this paper can be further extended to perform similar intercomparison between Landsat 8 Operational Land Imager, Aqua MODIS, and Suomi-NPP VIIRS.
Digital Advertising Preference and Marketing Performance of Automobile Products in Rivers State, Nigeria

The study examined the relationship between Digital Advertising Preference and Marketing Performance of Automobiles in Rivers State. The study adopted the correlational research design; the population of 30 automobile firms in Port Harcourt. 150 staff members made up the population of the unit. According to the research's population of thirty (30), the study used a census technique and looked at all thirty vehicle companies with a particular emphasis on the personnel. Each business received five (5) copies of the questionnaire, which were dispersed in this manner. For the research, a total of 150 respondents were employed as participants. The structured questionnaire was used as a tool for gathering data. At a significance level of 0.05, the Pearson's Product Moment Correlation was utilized to evaluate the hypotheses. According to the research of the study, Rivers State's preference for digital advertising has a big impact on how well cars are marketed there. The study came to the conclusion that automakers must continually investigate digital advertising cues like email and social media advertisements because these types of ads have the power to draw customers in, encourage purchases, and keep them coming back for more. The research suggests that automakers in Rivers State employ email advertisements to boost sales and profitability in a few specific supermarkets, and they should use social media platforms to advertise their brands and get more clientele.
The Knot Book

Are you looking to uncover the knot book Digitalbook. Correct here it is possible to locate as well as download the knot book Book. We've got ebooks for every single topic the knot book accessible for download cost-free. Search the site also as find Jean Campbell eBook in layout. We also have a fantastic collection of information connected to this Digitalbook for you. As well because the best part is you could assessment as well as download for the knot book eBook Our goal is always to offer you an assortment of cost-free ebooks too as aid resolve your troubles. We have got a considerable collection of totally free of expense Book for people from every single stroll of life. We have got tried our finest to gather a sizable library of preferred cost-free as well as paid files. Required a wonderful electronic book? the knot book by , the most effective one! Wan na get it? Discover this superb electronic book by here now. Download or read online is readily available. Why we are the most effective website for downloading this the knot book Of course, you can choose the book in various file kinds and also media. Look for ppt, txt, pdf, word, rar, zip, and also kindle? Why not? Obtain them below, now! GO TO THE TECHNICAL WRITING FOR AN EXPANDED TYPE OF THIS THE KNOT BOOK, ALONG WITH A CORRECTLY FORMATTED VERSION OF THE INSTANCE MANUAL PAGE ABOVE.
Horizontal Alveolar Ridge Augmentation in the Mandibular Posterior Region Using Biphasic Calcium Phosphate and Leukocyte- and Platelet rich fibrin (L-PRF): A case report.

In bone defects caused by tooth loss, tissue reconstructions are necessary to enable prosthetic rehabilitation with dental implants. Diverse techniques and materials of different origins are used for this purpose. Leukocyte- and Platelet-Rich Fibrin (L-PRF) has been used in association with osteoconductive biomaterials in procedures of bone regeneration and for covering grafted areas. The aim of this article was to demonstrate a clinical case of bone grafting in the posterior region of the mandible, performed with the use of synthetic biomaterial composed of biphasic calcium phosphate associated with Leukocyte- and Platelet-Rich Fibrin for performing bone augmentation in an alveolar ridge with a horizontal defect, thereby enabling later installation of dental implants and prosthetic rehabilitation in the region. Keywords: bone graft, biomaterials, leukocyte- and platelet-rich fibrin, bone substitutes, dental implants.