bluuebunny/crossref_metadata_2025 huggingface dataset:
Effect-less? Event-files are not terminated by distal action effects
Authors: Frings Christian , Selimi Silvia , Soballa Paula , Weissman Daniel H.
Published: July 2023

Event-files that bind features of stimuli, responses, and action effects figure prominently in contemporary views of action control. When a previous feature repeats, a previous event-file is retrieved and can influence current performance. It is unclear, however, what terminates an event-file. A tacit assumption is that registering the distal (e.g., visual or auditory) sensory consequences of an action (i.e., the “action effect”) terminates the event-file, thereby making it available for retrieval. We tested three different action-effect conditions (no distal action effect, visual action effect, or auditory action effect) in the same stimulus-response (S-R) binding task and observed no modulation of S-R binding effects. Instead, there were comparably large binding effects in all conditions. This suggests that proximal (e.g., somatosensory, proprioceptive) action effects terminate event-files independent of distal (e.g., visual, auditory) action effects or that the role event-file termination plays for S-R binding effects needs to be corrected. We conclude that current views of action control require further specification.
The effect of visually filled reproductions on the reproduced durations of auditory intervals
Authors: Plastira Miria N. , Avraamides Marios N.
Published: July 2023

The present study examined how the perception of time is affected by the presence of a visual stimulus during the reproduction phase of an online time reproduction task. Participants were instructed to reproduce the durations of speed-altered speech snippets with either a picture or a blank screen presented during the reproduction phase. Results showed that fast speeches were reproduced as longer than slow ones, while the reproduced durations of short speeches were closer to the actual durations than were the long speeches. In addition, longer reproduced durations were observed in trials with a picture than in trials with a blank screen. These results provide clear evidence that postencoding information can influence the reproduction of previously encoded temporal intervals and are discussed in the context of attention allocation and its possible influence on an internal clock mechanism. Also, the study provides evidence that online testing is reliable for assessing biases in time perception, at least with time reproduction tasks.
The Role of Magnetic Resonance Venography in Headache Due to Suspected Cerebral Venous Sinus Thrombosis in the Presence of Normal T1 and T2 Dural Sinus Signal
Authors: Afzal Fariha , Khan Muhammad Imran , Afridi Ujala , Bangash Alia
Published: July 2023

OBJECTIVES
Cerebral venous sinus thrombosis (CVST) is an important but uncommon aetiology of stroke.  The presentation of CVST is extremely variable clinically, moreover its onset can be either acute or subacute, and less frequently, chronic. Headache is the most common symptom of CVST.  The headache is typically diffuse and progressing in severity over days to weeks.  MRI and MRV have very high sensitivity and specificity and have become the modality of choice to confirm the diagnosis of CVST.  The aim of this study was to weigh the benefits of added MRV in patients with headache, after a negative MRI for CVST. 
METHODOLOGY
The total number of patients included was 207, with chief complaints of headache and suspicion of CVST. The MRV sequence used was dynamic coronal by using the time-of-flight technique. The diagnosis of CVST was made by the loss of normal signal void both on T1WI and T2WI as well as on non-visualization on MRV.RESULTSOut of these 207 patients, CVST was present in 52 patients.  Superior sagittal sinus was involved in 8 cases, right transverse sinus in 2 cases, left transverse sinus in 7 cases, left sigmoid sinus in 3 cases, and multiple sinuses in 32 cases. 34 cases out of 52 had infarction which was mostly haemorrhagic i.e. 27.  A total of 97 cases (46%) had aplastic/hypoplastic transverse segments which were mostly the left one (87, 42%) and 10 cases (4.8 %) on the right side. In none of the patients, CVST was picked by MRV alone after a negative T1 and T2 MRI.
CONCLUSION
In patients presenting with headache and suspected CVST additional MRV is only required if the routine MR sequences are not able to pick up the thrombus and the suspicion of CVST is very high.
Frenectomy Using Diode Lasers: A Case Report
Authors: Nauman Khan Amna , Khan Nauman Rauf , Butt Hira , Imran Fatimah , Fatima Syeda Maryam , Amer Laiba
Published: July 2023

OBJECTIVES
Lasers are used in almost every aspect of dentistry, be it surgeries, restorations, periodontal procedures, and even aesthetic dentistry. One certain area that requires extra emphasis and importance is the laser-assisted frenectomy. Frenectomy, as the name suggests, is the excision of frenum attachment to the underlying bone. Frenectomy is carried out in the mandible as well as the maxilla. This is a case of a patient undergoing orthodontic treatment who also required a frenectomy, and to minimize the postoperative pain and swelling, the procedure was carried out using a diode laser rather than the conventional surgical procedure.
Exhibitionism and Voyeurism in Live-Streaming Applications as Affection Labor
Authors: Eko Nugroho  , Dirgahayu Dida , Karman  , Djoko Walujo
Published: July 2023

Despite having a positive impact on society, internet connectivity and accessibility have ethical consequences and have a real impact on Indonesian law. The impact of exhibitionism and voyeurism that we refer to in this work is exhibitionism and voyeurism. This practice is mediated through several new media-based communications venues. This article aims to explain these phenomena of exhibitionism and voyeurism from the perspective of a psychoanalytic framework and outline how the reification of the user into labor logic, and explain how the psychoanalytic process of consumerism is linked to nudity in live broadcasts. We collect information by monitoring the use of Live streaming applications (Bigo, Gogo-live, Tik Tok), either directly or indirectly through the YouTube program. This study concluded that consumerism, or voyeurism, occurs in live-chat streaming programs. The logic of capitalism and capitalization in the Internet and networking sectors encourage exhibitionism and voyeurism by users of live-streaming applications (labor). By turning audiences or content into commodities, voyeurism creates various commodities. In addition, nudity is a kind of merchandise from hard work that ethically has an impact like pornography which is regulated in the Indonesian legal system.

Keywords: Exhibitionism; Voyeurism; Streaming Applications; Affection Labor.
Organizational Communication Climate of Human Rights Promotion Support Bureau During Covid-19 Pandemi
Authors: Nike Delsy , Amri Dunan
Published: July 2023

Public Health Emergency of International Concern (PHEIC) over the Coronavirus Disease of 2019 (COVID-19) outbreak by the World Health Organization (WHO) as a global pandemic has threatened public health. This not only triggers changes in health and social and economic norms, but also has an impact on changes in organizational communication norms and processes, interactions between people and the use of new media which causes the organizational communication climate to adapt to situations and conditions that occur. The Bureau of Support for the Promotion of Human Rights on Indonesian National Human Rights Commission is one of the state organizations or institutions that has the duty and authority to promote human rights. This study aims to explore the organizational communication climate and media innovation applied at the Human Rights Promotion Support Bureau of the Indonesian National Human Rights Commission and to find out more about the organization's strategic policies and their implications during the COVID-19 pandemic related to achieving organizational goals. This study uses a qualitative research approach with a constructivist paradigm. Collecting data through purposive techniques, namely the selection of certain informants according to research needs through interviews, participatory observations and literature studies. The results show that the right organizational policies in managing the organizational communication climate at the Support Bureau for the Promotion of Human Rights can spur employee productivity during the COVID-19 pandemic.
Village Branding: Instruments of Place Brand Identity for Destinations and MSMes In The Tourism Villages
Authors: Murti Desideria , Victoria Sundari  , Antonius Bima  , Gabriel Emerald
Published: July 2023

This research aims to discuss the instruments in place of brand identity for destination development and MSMEs in a tourism village. The participatory approach was carried out by conducting the FGDs (Focus Group Discussions) sequence to involve citizens in formulating place branding. The citizens made and identified designs and icons, provided design directions, and gave the feel of a story to the resulting design. In previous research, place branding mainly was carried out in cities or places with dominant government hierarchies. In contrast, this research was conducted in villages and areas with a solid community base because the selected tourism villages were community-based tourism (CBT) villages. In addition, this research also observes how place branding can be done by trying to understand personality association through a participatory process and came from the citizens themselves. This research will contribute to the necessary instrument schemes for forming place branding in the village and community-based contexts. Several findings were noted in this research related to the challenges of MSMEs and destinations in carrying out branding, profit allocation issues, the difference of value or selling unique in formulating branding, the benefits of branding and technology, and challenges in supporting technology application. Based on the findings, this research showed several instrument applications in place branding, including three pillars, i.e., place physics, place practice, and place personality.
Perception of Local Journalists in West Nusa Tenggara about the Media Industry
Authors: Nur Muhammad Jamiluddin , Diyah Indiyati  , Shinta Desiyana Fajarica
Published: July 2023

This study aims to determine the perceptions of local journalists in West Nusa Tenggara (NTB) province, especially Lombok. This type of research is qualitative and the method used is phenomenology. The process of collecting research data was carried out through observation, and in-depth interviews. The researcher also conducted documentation and literature studies relevant to the research. The researcher analyzed the stages of organizing data, noting important points, describing meanings for informants, grouping statements into several units, developing descriptive text, detailing the experiences of informants more deeply through descriptions, and drawing conclusions. This research found that journalists who work in online media think that the print media industry still has a special niche of customers from the educated to government employees, but if they are not creative then print media will decrease. On the other hand, print media journalists feel that the print media industry will survive as long as regulations regarding local government advertising spending do not change. This regulation benefits print media because the value of their advertising partnership is much higher than online media. This research also found that print media journalists understand the condition of their company's dependence on local government and this relationship pattern is not sustainable. Meanwhile, online media journalists understand that their work culture in this industry demands more work while there is very little support for social and health insurance, especially for those who are contributing journalists.
Design of Compact Wideband/Bi-Band Frequency Reconfigurable Antenna for IoT Applications
Authors: Abdulzahra Duaa , Alnahwi Falih , Abdullah Abdulkareem
Published: July 2023

This paper discusses the design and performance of a frequency reconfigurable antenna for Internet of Things (IoT) applications. The antenna is designed to operate on multiple frequency bands and be reconfigurable to adjust to different communication standards and environmental conditions. The antenna design consists of monopole with one PIN diode and 50Ω feed line. By changing the states of the diode, the antenna can be reconfigured to operate in a dual-band mode and a wideband mode. The performance of the antenna was evaluated through simulation. The antenna demonstrated good impedance matching, acceptable gain, and stable radiation patterns across the different frequency bands. The antenna has compact dimensions of (26×19×1.6) mm3. It covers the frequency range 2.95 GHz -8.2 GHz, while the coverage of the dual- band mode is (2.7-3.8) GHz and (4.57-7.4) GHz. The peak gain is 1.57 dBi for the wideband mode with omnidirectional radiation pattern. On the other hand, the peak gain of the dual-band mode is 0.87 dBi at 3 GHz and 0.47 dBi at 6 GHz with an omnidirectional radiation pattern too.
PEMERIAN KECAKAPAN REPRESENTASI MATEMATIS SISWA SMP DALAM MATERI BANGUN RUANG SISI DATAR
Authors: Prawira Kirana Qurotal Aini , Dahlan Jarnawi Afgani , Purniati Tia
Published: July 2023

This research was carried out to expose the potential for mathematical representation of geometric materials. Students in the middle grades were used for this study. Case study methodology is used to conduct this study from a qualitative perspective. A mathematical representation instrument based on a five-item description is utilised to convey the findings of the inquiry. According to the findings, out of the four indications of "mathematical representation," students' abilities on picture representation indicators are higher than their abilities on other indicators of "mathematical representation," such as visual, mathematical expressions, and text representation. According to the other findings, the capability of representing text had the lowest ability overall, as shown by the number of students who were unable to solve the problem that was presented to them. Other results showed that text representation had the lowest ability, as seen by the number of students who did not complete the assignment.Keywords: mathematical representation skill; planar shape; problem-solving aptitude
An Investigation of Quantum and Parallel Computing Effects on Malware Families Classification
Authors: Taha Bewar Neamat
Published: July 2023

The proliferation of malicious software is a major concern for organizations and consumers alike. Malware is used to compromise computer systems and networks for malevolent purposes. Consequently, categorizing malware is essential for safeguarding systems from harmful assaults. Developers of malicious software are always coming up with novel techniques to avoid detection by security researchers. However, in recent years, quantum computing has developed rapidly and shown considerable advantages in a number of sectors, particularly in the area of cybersecurity. A quantum approach may be useful in conjunction with existing software for finding the most often occurring hashes and n-grams that are characteristic of malicious software. The time it takes to map n-grams to their hashes may be reduced if we load the table of hashes and n-grams into a quantum computer. The first step is to utilize Kilogram to identify the most prevalent hashes and n-grams in a large collection of malware. Once the hash table is generated, it is sent into a quantum simulator. The entangled key-value pairs are then searched through a quantum search method to locate the appropriate hash value. In contrast to the quantum algorithm's potential runtime of O(N) in the number of table lookups required to get the requisite hash values, re-computing hashes for a set of n-grams may take on average O(MN) time. The main purpose of this research is to address the significant effects of quantum and parallel computing on malware families’ classification.
The Effect of Resource Fit on New Product Performance in the Fashion & Apparel Industry
Authors:   Academic Society of Global Business Administration, Bang Hyo Min , Shim Dongnyok
Published: July 2023

The purpose of this study is to analyze the impact of fit between resource and targeting new product on new product performance in terms of time to market and product innovativeness. To answer the research question, this study organized structured survey questionnaire and collected 309 samples on new prouduct development projects in the fashion industry. And this showed summary statistics and applied multiple regression analysis with appropriate control variables. As a result of the empirical analysis, we found that technology fit, marketing fit and production fit positively affect new product performance. The impact of production fit is the highest among three resource fit on time to market while the impact of technology fit is the highest on product innovativeness. And we found that competition orientation moderates the relationship between resource fit and product innovativeness. From empirical analysis, we concluded that exploring just rare and valuable resource is not enough but strategically considering resource fit is more important in new product development project. In addition, given the fact that new product performance measurement are under trade-off relationship, it is imperative for manager to enhance certain resrource fit matching performance dimension which new product teams focus on.
Will COVID-19 affect consumer irrational behavior? A survey of China's consumer market based on FAHP
Authors:   Academic Society of Global Business Administration, WEI RAN , HUANG FEI
Published: July 2023

Under the influence of COVID-19, people's psychology and consumer behavior have changed somewhat from the pandemic, and these changes have not only affected the stability of society but also created obstacles for the government to maintain the balanced and healthy development of the national economy. Our study uses a two-step approach to investigate the factors influencing the irrational shift in residents' consumption behavior under COVID-19. In the first step, FAHP was executed to determine the relative importance of the factors in the proposed research model. In the second step, the study hypotheses were tested using SEM with data from 150 respondents in 66 cities across 20 provinces in China. The FAHP results show that perceived scarcity has the highest weight of influence on irrational shifts in consumer behavior under COVID-19. The empirical findings suggest that perceived scarcity, bad mood, and changes in consumer preferences partially mediate the irrational changes in residential consumption behavior during a pandemic. Meanwhile, residents' positive perceptions of government pandemic prevention measures partially negatively moderated the generation of irrational consumer behavior during the pandemic. Thus, our study not only achieves interdisciplinary theoretical and methodological integration but also provides the government with a quantitative measure of the utility of COVID-19 management measures in mitigating irrational changes in residents' consumption behavior during a pandemic. Not only can we enrich the literature on irrational consumption behavior in related consumption behavior studies, but also provide theoretical, empirical, and practical case support for the Chinese government's response to control the irrational consumption behavior of the population under public health emergencies.
Model E-Channel Design System Dengan Bank Biometric Aplication Pada Bank Di Indonesia
Authors: Pramuditha Panji , Budi Harto  , Lina Parlina  , Irwan Hermawan  , Dewi Reniawaty
Published: July 2023

Peningkatan biaya perbankan di seluruh dunia telah mendorong lembaga keuangan untuk mencari pendekatan baru untuk masalah ini. Akibatnya, bank telah mulai mendefinisikan teknologi baru, khususnya penggunaan internet, karena berkaitan dengan transaksi keuangan. Akses internet telah berevolusi dari telepon darat ke komputer pribadi ke ponsel dan sekarang smartphone. Mobile banking, sering dikenal sebagai m-banking, dengan cepat menjadi norma untuk melakukan transaksi keuangan, mengantarkan era baru bagi industri perbankan global secara keseluruhan. Saat ini ada beberapa aplikasi mobile banking yang menggunakan metode login aman Sidik Jari. Satu-satunya aplikasi mobile banking yang menggunakan biometrik seperti wajah pengguna, sidik jari, atau pemindaian iris untuk memverifikasi identitas adalah yang Anda lihat saat ini.
New species of Labiobaetis Novikova & Kluge from New Guinea (Ephemeroptera, Baetidae): a never-ending story of diversity
Authors: Kaltenbach Thomas , Vuataz Laurent , Gattolliat Jean-Luc
Published: July 2023

Investigations of material collected partly in 1999 and mainly between 2006 and 2016 in New Guinea, mostly along the high, central mountain chain of the island, further increased our knowledge of the diversity of the genusLabiobaetisNovikova & Kluge on this island. Previously, 37 species were reported from New Guinea. We have identified six new species using a combination of morphology and genetic analysis (COI). They are described and illustrated based on their larvae. Five of the six new species belong to the grouppetersorum, which is endemic to the island. Additionally,Labiobaetis xeniolusLugo-Ortiz & McCafferty is also assigned to this group. The morphological characterisation of the grouppetersorumis enhanced, and a key to all species of this group is provided. Complementary descriptions and remarks to the morphology of known species of the grouppetersorumare provided. Additionally, a genetic analysis (COI) including most species and several additional Molecular Operational Taxonomic Units (MOTUs) of the grouppetersorumis discussed. One of the new species belongs to the groupvitilis. The morphological characterization of this group is slightly enhanced, and the obtained COI sequence was added to the genetic analysis of the grouppetersorum. The total number ofLabiobaetisspecies worldwide is augmented to 162.
Checklist of the micromolluscs in the intertidal zone of the Yellow Sea and Bohai Sea, China
Authors: Qi Lu , Xu Biyang , Kong Lingfeng , Li Qi
Published: July 2023

The diversity of the sedimentary environment and molluscs is rich in the intertidal zone of the Yellow Sea and Bohai Sea. At present, many of the investigations focus on macromolluscs, while the diversity of micromolluscs is seriously underestimated.

In this study, the survey of micromolluscs was carried out in the intertidal zone of the Yellow Sea and Bohai Sea. The collection and preservation of micromolluscs, as well as the preparation methods of morphological characteristic structures by scanning electron microscopy (SEM) were explored. A total of 20 species were described in this survey. These can be assigned to 16 families, four orders (Vetigastropoda (1), Caenogastropoda (10), Heterobranchia (5) and Autobranchia (3)) and two classes (Gastropoda (17), Bivalvia (3)).
The Impact of Social Determinants of Health on Presentation, Treatment, and Outcomes in Branch Retinal Vein Occlusion With Cystoid Macular Edema
Authors: Woldetensaye Anania G. , Selander Jenna M. , Huang Harrison , Patel Palak V. , Villarreal Alex , Hesse Richard A. , Greven Margaret A.
Published: July 2023

Background and Objective:

To investigate the impact of social determinants of health on the presentation, treatment, and outcomes of branch retinal vein occlusion (BRVO) with cystoid macular edema (CME).

Patients and Methods:

A retrospective chart review was conducted of patients with BRVO and CME treated with anti-vascular endothelial growth factor (anti-VEGF) injections at Atrium Health Wake Forest Baptist from 2013 to 2021. Patients' baseline characteristics including visual acuity (VA), age, sex, race, Area Deprivation Index (ADI), insurance status, baseline central macular thickness (CMT), treatment details, final VA, and final CMT were recorded. The primary outcome measure was final VA comparing more and less deprived groups, and White and non-White groups.

Results:

Two hundred forty-four eyes of 240 patients were included. Patients with higher socioeconomic deprivation scores had thicker final CMT (
P
= 0.05). Non-White patients had worse presenting (
P
= 0.01) and final VA (
P
= 0.02).

Conclusion:

This study demonstrated disparities in presentation and outcomes based on socioeconomic status and race in patients with BRVO and CME treated with anti-VEGF therapy.

[
Ophthalmic Surg Lasers Imaging Retina
2023;54:411–416.]
A framework for establishing constraint Jacobian matrices of planar rigid-flexible-multibody systems
Authors: Zhang Lina , Rui Xiaoting , Zhang Jianshu , Wang Guoping , Gu Junjie , Zhang Xizhe
Published: July 2023

Constraint violation correction is an important research topic in solving multibody system dynamics. For a multibody system dynamics method which derives acceleration equations in a recursive manner and avoids overall dynamics equations, a fast and accurate solution to the violation problem is paramount. The direct correction method is favored due to its simplicity, high accuracy and low computational cost. This method directly supplements the constraint equations and performs corrections, making it an effective solution for addressing violation problems. However, calculating the significant Jacobian matrices for this method using dynamics equations can be challenging, especially for complex multibody systems. This paper presents a programmatic framework for deriving Jacobian matrices of planar rigid-flexible-multibody systems in a simple semi-analytic form along two paths separated by a secondary joint. The approach is verified by comparing constraint violation errors with and without the constraint violation correction in numerical examples. Moreover, the proposed method's computational speed is compared with that of the direct differential solution, verifying its efficiency. The straightforward, highly programmable and universal approach provides a new idea for programming large-scale dynamics software and extends the application of dynamics methods focused on deriving acceleration equations.
Normalized solutions for Kirchhoff-Carrier type equation
Authors: Yang Jie , Chen Haibo
Published: July 2023

In this paper, we study the following Kirchhoff-Carrier type equation

   \begin{document}$ -\left(a+bM\left(|\nabla u|_{2}, |u|_{\tau}\right)\right)\Delta u-\lambda u = |u|^{p-2}u, \quad \ {\rm in}\ \mathbb{R}^{3}, $\end{document}

where $ a, \ b > 0 $ are constants, $ \lambda\in \mathbb{R}, \ p\in (2, 6) $. By using a minimax procedure, we obtain infinitely solutions $ (v^{b}_{n}, \lambda_{n}) $ with $ v^{b}_{n} $ having a prescribed $ L^{2} $-norm. Moreover, we give a convergence property of $ v_{n}^{b} $ as $ b\rightarrow 0^{+} $.
Bibliometric Analysis of Online Learning Emotions from 2006 to 2023
Authors: Zhang Min , Xiao Gengsheng
Published: July 2023

Despite a growing body of research on online learning emotions, few studies have been committed to systematic reviews of the scientific publications in this area using bibliometric methods. Assisted by CiteSpace software, the present study aims to dissect the scientific production of this subject from 2006 to 2023 based on the database of WOS, revealing development trends and hotspots. The following findings are obtained from the bibliometric analysis. Firstly, the number of articles published has increased exponentially from only one in 2006 to 209 in 2022, demonstrating upside potential. Secondly, the United States, China and England are the most contributing countries, while Kruk, Pawlak, Kim and Artino are the most prolific authors and Cao (2020), Loderer (2020), Pekrun (2017), Li (2018), Jiang (2019), Dewaele (2018) are recognized as the most-cited articles. Lastly, studies concerning the COVID-19 pandemic and foreign language enjoyment have taken the academic high ground in the area of online learning emotions in recent years, and the research focus has shifted from negative emotions to positive ones. The findings may have implications for educators and practitioners in online learning and teaching in the future.
A New Methodology for Clustering of Online Learning Resources Based on Students' Learning Styles
Authors: Li Qiaolan
Published: July 2023

Recommending learning resources to students according to their respective learning style is conductive to improving learning efficiency, and the clustering and classification of learning resources conduce to reducing learning resource redundancy and duplication and increasing learning resource utilization. However, available methods of learning resource recommendation usually regard students’ learning styles as fixed and invariable, which apparently contradicts reality and may have a negative influence on students’ learning effect. In view of this matter, this paper aims to propose a novel methodology for clustering online learning resources based on student learning style. At first, the specific steps of the new clustering method were given, and a Sharpe model was adopted to analyze the invalid exposure of students’ learning effect and identify students’ learning styles. The learning style coefficient of students was regarded as a dynamic systemic state, which was estimated by the Kalman filter. Then, the Affinity Propagation Clustering (APC) algorithm was adopted to cluster learning resources based on a student learning style distance matrix, and a model of recommended online learning resource combinations was established based on the proposed method. At last, experimental procedures, including learning style evaluation, pretest exam score prediction, posttest exam score prediction, and data analysis, were described in detail, and the validity of the proposed method was verified by experimental results.
Design and Analysis of Wideband Stair Step-Shaped Rectangular Ring Microstrip Antenna with DGS for IoT Applications
Authors: Rana Sonu , Verma Jyoti , Gautam A. K.
Published: July 2023

A novel miniature wideband rectangular ring antenna is proposed for 4.6–6.2 GHz which is compatible with IoT applications. The wideband response of the proposed antenna is achieved by a partial ground and stair step structure. Because modifying the width and etching the ground plane does not improve the impedance matching over a large bandwidth, a triangular shape DGS is inserted in the partial ground plane to increase the antenna bandwidth with enhanced return loss. The wideband features of the antenna were explored here by incorporating different DGS shapes such as triangles, rectangle, pentagon, circle, and oval in the partial ground. The results have been successfully verified through measurement. The simulated fractional bandwidth is greater than 29% at 4.6–6.2 GHz whereas the measured fractional bandwidth is 27.6% at 4.75–6.2 GHz. In both cases, the maximum return loss is greater than 55 dB. The gain of the antenna is greater than 2.6 dB with good efficiency and nearly omnidirectional radiation pattern in shape. Due to its compact size and outstanding performance, the suggested stair stepshaped rectangular ring antenna could be a promising choice for IoT and wireless applications.
COV-CTX: A Deep Learning Approach to Detect COVID-19 from Lung CT and X-Ray Images
Authors: Sadi Muhammad Sheikh , Alotaibi Mohammed , Saha Prottoy , Nishat Fahamida Yeasmin , Tasnim Jerin , Alhmiedat Tareq , Almoamari Hani , Bassfar Zaid
Published: July 2023

With the massive outbreak of coronavirus (COVID-19) disease, the demand for automatic and quick detection of COVID-19 has become a crucial challenge for scientists around the world. Many researchers are working on finding an automated and effective system for detecting COVID-19. They have found that computed tomography (CT-scan) and X-ray images of COVID-19 infected patients can provide more accurate and faster results. In this paper, an automated system is proposed named as COV-CTX which can detect COVID-19 from CT-scan and X-ray images. The system consists of three different CNN models: VGG16, VGG16- InceptionV3-ResNet50, and Francois CNN. The models are trained with CT-scan and X-ray images individually to classify COVID-19 and non-COVID patients. Finally, the results of the models are combined to develop a voting ensemble of classifiers to ensure more accurate and precise results. The three models are trained and validated with 9412 CT-scan images (4756 numbers of COVID positive and 4656 numbers of non-COVID images) and 3257 X-ray images (1647 numbers of COVID positive and 1610 numbers of non-COVID images). The proposed system, COV-CTX provides up to 96.37% accuracy, 96.71% precision, 96.02% F1-score, 97.24% sensitivity, 95.35% specificity, 92.68% Cohens Kappa score for CT-scan image based COVID-19 detection and 99.23% accuracy, 99.37% precision, 99.22% F1-score, 99.39% sensitivity, 99.07% specificity, 98.46% Cohens Kappa score for X-ray image based COVID-19 detection.
Gender, Sexual Identity, and Families: The Personal Is Political
Authors: Fischer Judith L.
Published: July 2023

Gender, Sexual Identity, and Families: The Personal Is Political Gender is a fundamental organizing principle of families and is a complex mix of biology, identity and behavioral expression. Similarly, sexual identity includes a wide range of identification of sexual attraction and expression, and is also fundamental to understanding families. In 2016 Groves Conference program built on the Groves Conference's past and recognized that social change has been swift in some areas, such as marriage equality with the 2015 Supreme Court ruling. However, full equality for all individuals and families throughout the U.S. is still not present and counter movements to social change are many, such as turn­ing back the clock on fertility decisions, voting rights, even the definition of citizenship. For professionals who do research, who participate in policy, and who conduct prevention and intervention, the work presented in this volume is refreshed by new perspectives, new information, and new commitments.
Families at the Intersection of Mental Health and Disabilities
Authors: Zvonkovic Anisa
Published: July 2023

Families at the Intersection of Mental Health and Dis­ability offers scholars and practitioners an opportunity to focus on the multiple ways these experiences impact individuals, families, and com­munities in American society. Chapters in this volume are influenced by the theme of the 2015 Annual Meeting of the Groves Conference, held in Buffalo, New York.
Promotional Strategies for Organized Retail
Authors: Singla Babita
Published: July 2023

Organized retailing in India is going through a paradigm shift, what was once a family business is now run by professionals. They use mass media strategies to catch customers. But those days are gone when one advertisement can be used for marketing throughout the country. This research is carried out in Punjab to understand the need for change in promotional strategies. This paper proposes four new promotional strategies to cater to the need of the customers in a better way. The strategies purposed are pricing strategies, promotion strategies, push strategies, and technology and innovation strategies.
Observation and Nursing of the Therapeutic Effect of Extracorporeal Shock Wave Therapy on Tennis Elbow
Authors: Jia Wanping , Zhao Guangyong
Published: July 2023

Tennis elbow is a chronic inflammatory injury caused by the connection between the humerus and the tendon attachment point in the elbow. Further in-depth research is needed to cure tennis elbow with extracorporeal shock waves. This article selects 400 tennis elbow patients who were recuperated at Southwest Medical University in 2020 and uses extracorporeal shock wave therapy and ultrasound therapy to compare and analyze the visual analogue scale of pain and positive rate of traction characteristics before and after treatment and summarizes nursing care. The research results indicate that after extracorporeal shock wave and ultrasound treatment, the lower the pain visual analogue scale and the faster the positive rate of traction features in patients, and the better the treatment effect of extracorporeal shock wave. The most accurate impact treatment site is the most painful area that the patient usually feels. The research results provide theoretical data support for the efficacy of extracorporeal shock wave therapy for tennis elbow.
Comparison of Physical Exercise and Psychological Intervention in the Healthcare of Menopausal Women
Authors: Zhang Zhen , Zhao Minghui
Published: July 2023

The physical and mental health and quality of life of women during menopause undergo significant changes, accompanied by symptoms such as anxiety, depression, and insomnia. How to solve menopausal health problems has become a major challenge. By comparing the menopausal symptoms, Greene symptoms, psychological emotions, and satisfaction of two groups of women, the impact of physical exercise combined with psychological intervention on women's menopausal health is analyzed. The research results indicate that after two intervention methods, women's depression and anxiety scores significantly decreased, but the combination of physical exercise and psychological intervention has a greater reduction. The overall satisfaction of the combined intervention group reached 94.67%, much higher than the 87% of individual interventions. The research results provide theoretical data support for the combination of physical exercise and psychological intervention to promote menopausal healthcare for women.
The Reform of Pronunciation Teaching in Colleges and Universities by Praat Software From the Perspective of Deep Learning
Authors: It Khuselt
Published: July 2023

Due to the difficulties of speech signal processing, there is still a considerable gap between the ability of machines to correctly process and that of human beings. In order to overcome the defects of isolated learning and noise sensitivity of SOM, this paper proposes a new time self-organization model (TSOM) from the perspective of deep learning. On the basis of self-organizing mapping network, time enhancement mechanism is introduced to improve the system performance. This method makes up for the fixed spatial topology of the original self-organizing mapping network and the neglect of the time factor, which is crucial to the voice signal. At the same time, this paper makes full use of computer-aided technology and rich network resources to provide a comprehensive and systematic English pronunciation learning database and establish learners' pronunciation files. Once learners understand and master the operation of voice analysis software, they can conduct self-assessment and judgment to find out their blind spots and weaknesses in voice acquisition.
Impact of Algal Research and its Potential for Industrial Applications: A Review
Authors: Kumarasinghe H. S. , Gunathilaka T. L. , Jayasooriya R. G. P. T. , Samarakoon K. W.
Published: July 2023

Marine biotechnology is a broad field with a profound and global sociological footprint. Within that sociological macrocosm, marine algae act as an emerging field of research that is exemplified by the superabundance of natural sources to harvest bioactive compounds. Algae synthesize a comprehensive array of bioactive compounds including polysaccharides, polyphenols, sterols, alkaloids, flavonoids, tannins, proteins, essential fatty acids, enzymes, vitamins, and carotenoids. Many of these bioactive compounds are composed of significant biological properties such as antioxidant, ultra-violet protective, anti-inflammatory, anti-wrinkling, skin-whitening, anti-microbial, anti-thrombotic, and anti-cancer activities. With the discovery of novel bioactive compounds from marine algae, it as a collective performs the role of a conveyer belt of ingredients for industrial applications, namely the pharmaceutical industry, cosmeceutical industry, nutraceutical industry, energy industry, and functional food industry, etc. New generations have now focused their attention towards natural, safe, and highly available bioproducts as it downplays the risks linked to consumption while providing benefits. Considering the rising demand for natural bioproducts globally, marine algae turn into biological factories with vast economic potential. Therefore, this mini-review mainly focuses on the impact of algal research and its potential for industrial applications.
STAP-2–Derived Peptide Suppresses TCR-Mediated Signals to Initiate Immune Responses
Authors: Sasaki Yuto , Saitoh Kodai , Kagohashi Kota , Ose Toyoyuki , Kawahara Shoya , Kitai Yuichi , Muromoto Ryuta , Sekine Yuichi , Ichii Michiko , Yoshimura Akihiko , Oritani Kenji , Kashiwakura Jun-ichi , Matsuda Tadashi
Published: July 2023

Signal-transducing adaptor protein-2 (STAP-2) is an adaptor protein that contains pleckstrin and Src homology 2–like domains, as well as a proline-rich region in its C-terminal region. Our previous study demonstrated that STAP-2 positively regulates TCR signaling by associating with TCR-proximal CD3ζ ITAMs and the lymphocyte-specific protein tyrosine kinase. In this study, we identify the STAP-2 interacting regions of CD3ζ ITAMs and show that the STAP-2–derived synthetic peptide (iSP2) directly interacts with the ITAM sequence and blocks the interactions between STAP-2 and CD3ζ ITAMs. Cell-penetrating iSP2 was delivered into human and murine T cells. iSP2 suppressed cell proliferation and TCR-induced IL-2 production. Importantly, iSP2 treatment suppressed TCR-mediated activation of naive CD4+ T cells and decreased immune responses in CD4+ T cell–mediated experimental autoimmune encephalomyelitis. It is likely that iSP2 is a novel immunomodulatory tool that modulates STAP-2-mediated activation of TCR signaling and represses the progression of autoimmune diseases.
Numerical Study of Distributed Variable Geometry Ducted Fans for eVTOLs
Authors:   University of Sherbrooke, Marois Francis , Picard Mathieu , Rancourt David
Published: July 2023

The effects of key design parameters of tilting distributed ducted fans are investigated through steady-state CFD simulations to assess the benefits of using variable geometry ducts in urban air mobility applications. The analysis is made on three adjacent ducted fans mounted at the trailing edge of a semi-span wing. The fans are represented by body forces calculated using the blade element theory. The duct expansion ratio, the duct thickness and the fan design expansion ratio are varied along with the fan speed, the crosswind speed in hover and the airspeed in forward flight. For each combination of the parameters, the hover Figure of Merit and crosswind stall speed as well as the forward flight lift coefficient, thrust coefficient and propulsive efficiency are evaluated. From these results, variable geometry ducted fans are benchmarked against fixed geometry ducted fans using a simplified 1 hour mission with 10% of hover time. It is found that a ducted fan equipped with a Krueger flap and a variable expansion ratio diffuser consumes nearly 11% less energy to complete the mission.
Investigation of Coaxial Rotor Performance for a Gun-launched Micro Air Vehicle
Authors:   Texas A&M University, Denton Hynter , Benedict Moble
Published: July 2023

This paper presents an experimental parametric study to maximize the hover efficiency of a coaxial rotor system for a micro air vehicle (MAV) that could be launched from a 40 mm grenade launcher. Towards this, isolated rotor experiments were first conducted to optimize the performance of a single rotor at low Reynolds numbers (Re) through varying parameters including blade pitch angle, thickness-to-chord ratio (t/c), chord length, and Reynolds number. Results showed that t/c had minimal impact on the figure of merit FM) below 4%, while increasing blade chord length significantly improved hover efficiency until a chord length of 16.6 mm (solidity = 0.10). The optimal pitch angle for the isolated rotor was around 16 degrees, and the maximum FM was 0.59 at Re = 70,000. Coaxial rotor experiments were performed using the optimal isolated rotor as the baseline. The vertical separation between the upper and lower rotors had negligible impact on performance for a separation distance range from 0.5R to 3R. However, below a separation distance of 0.5R, the thrust and FM of the lower rotor increased and that of the upper rotor decreased. The highest FM obtained for the coaxial rotor was around 0.60 at Re = 30,000, which remained relatively constant across all vertical separations tested. The coaxial rotor system produced almost 1.66 times the thrust of an isolated single rotor. When compared at the same disk loading, the power loading (thrust/power) for the coaxial rotor was similar to that of an isolated single rotor. A comprehensive analysis (RCAS) was used to model the MAV-scale isolated rotor in hover and the analytical predictions agreed well with the experiments. In order to generate the airfoil lookup table for the RCAS model, water tunnel experiments were conducted at Re = 44,000 using a scaled-up wing with the exact same circular-cambered plate airfoil used in the coaxial rotor blades.
Development, Simulation, and Flight Testing of Damage Tolerant Control Laws for the ADAPT™ Winged Compound Helicopter Scaled Demonstrator
Authors:   US Army CCDC - AvMC, Nadell Samuel ,   Piasecki Aircraft Corporation, DiJoseph Alex , Berger Tom , Huang Eric
Published: July 2023

Damage tolerant control (DTC) laws were developed for the Adaptive Digital Automated Pilotage Technology (ADAPT) Winged Compound Helicopter Scaled Demonstrator, a 10% scale version of the Piasecki X-49A, and tested in simulation and flight. The damage scenarios considered include failures of the aircraft's eight redundant actuators: left, right, and aft swashplate servos, Vectored Thrust Ducted Propeller (VTDP) RPM, rudder, left and right flaperons, and elevator. A pseudo-inverse control allocation scheme was used to reallocate control to the remaining actuators based on detection of a failed actuator. The paper covers discussion of the vehicle configuration, flight dynamics, control design, piloted simulation study to evaluate aircraft survivability and failure severity, and flight testing. The results show that DTC improved aircraft survivability and reduced failure severity, as measured by Sullivan Survivability and Integrated Failure Evaluation Scheme ratings, for three of the five damage scenarios tested in the piloted simulation study. Most notably, DTC enabled recovery after a left swashplate servo hardover that was unrecoverable with DTC off. DTC for this damage scenario was successfully tested in flight.
Characterization of a Blade-Tip-Propeller Driven Rotor
Authors:   Naval Surface Warfare Center, Brown Robert ,   University of Maryland, Chopra Inderjit
Published: July 2023

A blade-tip-propeller driven rotor utilizes small electric motors and propellers attached at the blade tip to spin the main rotor. Potential applications of this technology are for high performance, mechanically simple, vertical takeoff and landing unmanned aerial vehicles. This paper presents a method of systematically characterizing the performance of an isolated propeller, isolated rotor, as well as the combined blade-tip-propeller driven rotor configuration. A series of wind tunnel tests were performed to experimentally obtain the isolated propeller performance at axial wind speeds up to 25 m/s and propeller tip speeds up to 100 m/s. Next, a novel method of rotor blade manufacturing was developed that involved laying multiple high powered wires inside the blade to provide electrical power to the motor at the blade tip. This process was utilized to fabricate a 5.5 feet (1.68 meter) diameter blade-tip-propeller driven rotor system that was tested in hover. Finally, a mathematical model was created for the blade-tip-propeller configuration and the predictions were compared to experimental results from the hover test stand model. The power loading of an isolated rotor and the new blade-tip-propeller configuration were compared, which identified several key areas of improvement.