Miracle-dz/UniFAR-FTUs huggingface dataset:
Real-time Face Tracking using the Relative Similarity of Local Area

동영상에서 객체를 인식하고 추적하는 방법에 대한 연구는 꾸준하게 진행되어 왔다[1,2]. 이러한 연구 중 사람의 얼굴을 대상으로 인식하고 추적하는 연구는 생체인증 시스템, 출입보안 시스템, 보안 감시 시스템, 군사 시스템 등 많은 분야에서 응용되고 있다[1]. 객체를 인식하고 추적하는 기존 연구들은 기준 프 레임과 관찰 프레임과의 차 영상을 통해 객체의 위치 를 인지하고 또 영상의 방향적 특성을 이용하여 다음 영상에서 앞 객체의 연속성을 연결하는 방법들을 사 용한다[2]. 이러한 방법은 제한된 환경에서는 어느 정 도 성과를 내기도 하지만, 추적하는 대상이 같은 유 형의 다수인 경우 어려움이 있다[3]. 서로 다른 프레임에서 동일인을 연속적으로 인식하 는 방법에는 전통적 얼굴 인식 시스템 방법이 있다[4]. 전통적인 방법은 인식하고자 하는 대상을 미리 학습 하고, 각각의 프레임에서 인식되는 얼굴을 판단하는 방법이다. 하지만 이러한 방법을 실시간 동영상에서 적용하면 처리 속도의 문제가 있고, 또 불특정 다수 를 대상으로 하는 경우에는 학습이 불가능하다는 제 약이 발생한다[5]. 본 논문에서는 특정 범위의 장소에서 획득한 동영 상들을 대상으로 시작 프레임부터 연속적으로 이어지 는 프레임에서 각각 사람의 얼굴을 인지하고, 인지한 동일인을 연속적으로 추적하는 방법이다. 따라서 본 논문에서 제안하는 방법은 각각의 프레임에서 빠르게 얼굴 영역을 인식하기 위해 Haar-like Adaboost 를 사용 하고, 각각의 프레임에서 독립적으로 인지된 얼굴들 의 동일성을 연결하기 위해 인식된 얼굴들 사이의 SAD(Sum of Absolute Difference)를 계산하는 방법이다. 제안된 방법의 유용성은 실험으로 검증했다. 본 논문은 다음과 같이 구성되어 있다. 2 장에서는 관련 연구를 언급하고, 3 장에서는 제안하는 방법을 설명했다. 4 장에서는 실험 및 분석, 5 장에서는 결론 및 향후 과제를 언급했다.
A Chimeric Form of Osteoprotegerin Inhibits Hypercalcemia and Bone Resorption Induced by IL‐1β, TNF‐α, PTH, PTHrP, and 1,25(OH)2D3

Osteoprotegerin (OPG) is a secreted protein that inhibits osteoclast formation and activity and appears to be a critical regulator of bone mass and metabolism. In the current study, mice were challenged with various cytokines and hormones (interleukin‐1β, tumor necrosis factor‐α, parathyroid hormone, parathyroid hormone‐related protein, and 1α,25‐dihydroxyvitamin D3) that are known to increase bone resorption and cause hypercalcemia and treated concurrently with either a recombinant chimeric Fc fusion form of human OPG, with enhanced biological activity (cOPG) (2.5 mg/kg/day) or vehicle. Mice receiving these bone‐resorbing factors became hypercalcemic by day 3 after commencing treatment and had increased bone resorption as evidenced by elevated osteoclast numbers on day 5. Concurrent cOPG treatment prevented hypercalcemia (p < 0.05) and maintained osteoclast numbers in the normal range (p < 0.001). The demonstration that cOPG can inhibit bone resorption suggests that this molecule may be useful in the treatment of diseases including hyperparathyroidism, humoral hypercalcemia of malignancy, osteoporosis, and inflammatory bone disease, which are characterized, in part, by increases in osteoclastic bone resorption.
Development of New Control Interface Technology Based on Leap Motion

요 약 최근 정보기술의 발전에 가속화되면서 기존의 키보드나 마우스 같은 전통적인 제어장치들과는 달리 새로운 하드웨어 인터페이스들이 등장하고, 그에 따른 새로운 시각에서의 제어 방법들 등장하고 있다. 본 논문에서는 Leap Motion이라는 새로운 하드웨어 인터페이스를 사용할 때 제공되는 단순한 위치 정 보만 쓰는 것이 아니라 어떠한 위치에 있는지, 특정 동작을 취했을 때 모션 등과 같은 정보들도 함께 사용하기 위해 손과 손가락을 인식할 수 있도록 모션 인식방법을 제안하고, 제안된 기술을 기반으로 3D Avatar를 제어 및 편집 후 애니메이션을 만들어 공유할 수 있는 모션제어 저작SW를 개발하였다. 본 기술은 의료, 게임, 교육 등 다양한 분야에서 새로운 제어 기술로서 활용될 수 있으며, 기존의 공간 터치 기술과는 다른 장점을 제공할 것으로 예상된다.
Leveraging Spring Mass Locomotion to Guide Learned Walking Controllers

—In this work, we describe an approach to achieving dynamic legged locomotion on physical robots which uses existing reduced order models of locomotion to guide reinforcement learning. Ultimately, our goal is that this work leads to a control hierarchy where the highest-level behaviors are planned through reduced-order models and lower level controllers utilize a learned policy that can bridge the gap between the idealistic model and the physical robot. Here we present the learned dynamic walking controller by showing that a range of walking motions from reduced-order models can be used as the command and primary training signal. Instead of a reactive planner, we use a library of optimized periodic walking motions from an actuated SLIP model. The resulting policies do not attempt to naively track the motion as a traditional trajectory tracking controller would, but instead balance immediate motion tracking with long term stability. The resulting controller is demonstrated on a physical Agility Robotics Cassie series bipedal robot at speeds up to 1.2 m/s. This work builds the foundation of a generic, dynamic learned walking controller that can be applied to many different tasks.
Continuous time random walks and queues: explicit forms and approximations of the conditional law with respect to their local times

A filtering problem is considered in the case when the state process is a continuous time random walk and the observation process is its local time. An explicit construction of the filter is given. This construction is then applied to a suitable approximation of a Brownian motion and to a rescaled M/M/1 queueing model. In both these cases a convergence result for the respective filters is given. The case of a queueing model when the observation is the idle time is also considered. MSC: 60K20; 60J55; 60F99; 60G35; 93E11; 60G55
A REVIEW AND OPEN ISSUES OF DIVERSE TEXT WATERMARKING TECHNIQUES IN SPATIAL DOMAIN

Nowadays, information hiding is becoming a helpful technique and fetches more attention due to the fast growth of using the internet; it is applied for sending secret information by using different techniques. Watermarking is one of major important technique in information hiding. Watermarking is of hiding secret data into a carrier media to provide the privacy and integrity of information so that no one can recognize and detect it's accepted the sender and receiver. In watermarking, many various carrier formats can be used such as an image, video, audio, and text. The text is most popular used as a carrier files due to its frequency on the internet. There are many techniques variables for the text watermarking; each one has its own robust and susceptible points. In this study, we conducted a review of text watermarking in the spatial domain to explore the term text watermarking by reviewing, collecting, synthesizing and analyze the challenges of different studies which related to this area published from 2013 to 2018. The aims of this paper are to provide an overview of text watermarking and comparison between approved studies as discussed according to the Arabic text characters, payload capacity, Imperceptibility, authentication, and embedding technique to open important research issues in the future work to obtain a robust method.
The reciprocity dimension of solidarity

The article argues that closer attention to how solidarity is understood and expressed in different European contexts can shed light on the conditions for establishing a social and solidarity economy. Drawing on data collected within the H2020 SOLIDUS project, which explores current expressions of European solidarity, the comparative analysis covers three social economy initiatives, each representing a country with different political and economic context. The analysis focuses on solidarity as reciprocity and, in particular, how it is affected by such factors as actor motivations, internal participatory functioning, resource mix and political legitimacy. While further empirical work is needed, the findings suggest that solidarity as reciprocity produced by social and solidarity economy organisations thrives where political institutions are both supportive and trusted, where public funding is accessible, and where partnerships with relatively autonomous social and solidarity economy organisations are genuinely collaborative.
Ethics Instruction and the Role of Liberatory Praxis and Theory

Dr. Vinod K. Lohani is a Professor of Engineering Education and also serves as the Director of education and global initiatives at an interdisciplinary research institute called the Institute for Critical Technology and Applied Science (ICTAS) at Virginia Tech. He is the founding director of an interdisciplinary lab called Learning Enhanced Watershed Assessment System (LEWAS) at VT. He received a Ph.D. in civil engineering from VT. His research interests are in the areas of computer-supported research and learning systems, hydrology, engineering education, and international collaboration. He has served as a PI or co-PI on 16 projects, funded by the National Science Foundation, with a $6.4 million research funding participation from external sources. He has been directing/co-directing an NSF/Research Experiences for Undergraduates (REU) Site on interdisciplinary water sciences and engineering at VT since 2007. This site has 95 alumni to date. He also leads an NSF/Research Experiences for Teachers (RET) site on interdisciplinary water research and have 10 alumni. He also leads an NSF-funded cybersecurity education project and serves as a co-PI on two International Research Experiences for Students (IRES) projects funded by the NSF. He has published over 90 papers in peer-reviewed journals and conferences.
Biological studies of three caulimoviruses associated with dahlia (Dahlia variabilis)

Abstract Two distinct caulimoviruses, Dahlia mosaic virus (DMV) and Dahlia common mosaic virus (DCMV), were found to be associated with dahlia mosaic disease. Additionally, an endogenous caulimovirus, Dahlia variabilis endogenous plant pararetroviral sequence (DvEPRS), was found to be present in many cultivated and wild Dahlia spp. Biological properties including mechanical and aphid transmission were investigated for DMV, DCMV and DvEPRS using Verbesina encelioides (crownbeard) as an experimental host. DMV and DCMV were transmitted by Myzus persicae at the rate of 50 and 73%, respectively. DMV and DCMV were mechanically transmissible to V. encelioides and the two effective buffers for mechanical transmission were phosphate buffer (pH 7.0) with nicotinic acid (1%) and sodium bisulfite (5%). Mechanical transmission rates of 58% and 36% were obtained for DMV and DCMV, respectively. DvEPRS was not transmissible by either aphids or mechanical inoculation. Availability of aphid and mechanical inoculation protocols for DMV and DCMV would facilitate further biological studies on caulimoviruses associated with Dahlia.
Cyanobacteria in New Zealand indigenous grasslands

We review current knowledge of cyanobacterial diversity and abundance in New Zealand's indigenous tussock grassland soils and present preliminary results on microbial diversity in grassland soils. A cyanobacterial community of eight operational taxonomic units was present in soil samples from Deep Stream indigenous grassland. This included strains belonging to the orders Chroococcales, Oscillatoriales and Nostocales. UniFrac analysis showed that the cyanobacterial populations were significantly different between burnt and unburnt soils. In addition, we outline the different techniques used to investigate cyanobacterial diversity and the role of cyanobacteria in providing fixed nitrogen into terrestrial ecosystems. Approaches include classical techniques of isolating cyanobacteria on selective media as well as traditional culture-independent methods involving DNA fingerprinting and/or analysis of molecular markers, including the use of polymerase chain reaction amplification in combination with Sanger sequencing to assess phylogenetic diversity in ecosystems. These labour intensive approaches are often limited by the number of samples that can be analysed. Advances in microarrays and high-throughput sequencing technologies now enable in-depth analysis at a lower cost and allow variations in microbial communities to be detected at different taxonomic levels. We compare the advantages and limitations of both traditional and new approaches.
Corporate Sustainability Practices: A Review on the Measurements, Relevant Problems and a Proposition

Ab stract-In recent years, corporate sustainability practices (CSP) or triple bottom line (TBL) is considered more important than just financial performance to the future success of business firms. Organizations are achieving significant benefits from incorporating sustainability in business. In addition to profit maximization, CSP is also considered to be a vital vehicle to reduce the corporate scandals. It is a common practice to engage in CSP by large companies in developed countries, but still, it is a controversial issue in developing countries. Moreover, given the critical role of CSP, government regulators are attaching more emphasis on such practices in business firms all over the world. Defining and measuring CSP is more than just an academic apprehension. In spite of nearly 50 years of previous research on sustainability, still, there is no certain standard for measuring CSP of an organization. The objectives of this article are to define CSP more clearly, discuss different techniques of measuring CSP and propose a new method for determining the CSP of firms following Bursa Malaysia Berhad reporting guideline-2015 which have been prepared according to Global Reporting Initiative (GRI) reporting framework.
Oligonucleotides Containing Acyclic Nucleoside Analogues with Carbamate Internucleoside Linkages

Abstract Synthesis of 2′-deoxy-2′,3′-secothymidine t and its dimer t∗t, where the two 2′-deoxy-2′,3′-secothymidine t units are connected via a carbamate, ∗=3′-NH-CO-O-5′, internucleoside linkage has been achieved. These building blocks were protected in the 5′-position, converted into their phosphoramidites, or attached onto CPG, and then used for “chimeric oligonucleotide” synthesis.
Water content, weight change, and activity of apterous and alate virginoparous Acyrthosiphon pisum (Harris) (Homoptera: Aphididae)

Changes in weight, water content, and activity of alate and apterous virginoparous Acyrthosiphon pisum (Harris) were observed during development from third instar larvae to mature adults. Apterous aphids gained weight steadily until the 4th day of adulthood, and showed no dramatic changes in activity during this period. The live weights of alate aphids decreased during the 24 h immediately following the final moult, but increased gradually after this lime. The onset of weight loss occurred before the active nonfeeding period during which dispersal would normally lake place. Recommencement of weight gain followed the resumption of feeding. After the adult moult, the water content of alatae expressed as a percentage of live weight decreased for 24 h. whereas that of apterae remained constant. During the next 24 h, the water content of alatae increased to a level slightly below that of apterae. Thereafter, both morphs maintained a constant water content until about the 5th day, when a slight increase was evi.
Preliminary analysis of productivity of fruiting fungi on Strzeleckie meadows

Analysis demonstrated that the fresh ahd dry weight as well as the ash content of fungal fruit bodies collected on a forest-surrounded unmown meadow ( Stellario-Deschampsietum Freitag 1957 and Caricetum elatae W.Koch 1926) were lower than the same values for a plot of exploited mown meadow and higher than on an exploited unmown meadow ( Arrhenatheretum medioeuropaeum (Br.-Bl.) Oberd. 1952).
Surface Reconstruction Using Regularized Membrane Potentials

-We present a novel, physically motivated method for surface reconstruction that can recover smooth surfaces from noisy and sparse data sets, without using orientation information. A new volumetric technique based on regularized membrane potentials for aggregating the input sample points is introduced, which manages improved noise tolerability and outlier removal, without sacri (cid:2)(cid:3)(cid:4)(cid:5)(cid:6)(cid:7)(cid:8)(cid:9)(cid:3) h with respect to detail (feature) recovery. In this method, sample points are (cid:2)(cid:10)(cid:11)(cid:12)(cid:7)(cid:13)(cid:6)(cid:6)(cid:10)(cid:14)(cid:6)(cid:13)(cid:12)(cid:14)(cid:15)(cid:7)(cid:16)(cid:5)(cid:7)(cid:13)(cid:7)(cid:17)(cid:16)(cid:18)(cid:9)(cid:8)(cid:14)(cid:12)(cid:10)(cid:4)(cid:3)(cid:7)(cid:6)(cid:10)(cid:4)(cid:15)(cid:19)(cid:7)(cid:20)(cid:7)(cid:18)(cid:13)(cid:21)(cid:14)(cid:18)(cid:4)(cid:5)(cid:6)(cid:7)(cid:13)(cid:18)(cid:6)(cid:16)(cid:10)(cid:4)(cid:12)(cid:22)(cid:8)(cid:7)(cid:12)(cid:22)(cid:13)(cid:12)(cid:7)(cid:10)(cid:14)(cid:18)(cid:4)(cid:14)(cid:11)(cid:7)(cid:16)(cid:5)(cid:7)(cid:4)(cid:5)(cid:12)(cid:10)(cid:4)(cid:5)(cid:11)(cid:4)(cid:3)(cid:7)(cid:23)(cid:10)(cid:16)(cid:23)(cid:14)(cid:10)(cid:12)(cid:4)(cid:14)(cid:11)(cid:7)(cid:16)(cid:24)(cid:7)(cid:12)(cid:22)(cid:14)(cid:7)(cid:11)(cid:8)(cid:16)(cid:16)(cid:12)(cid:22)(cid:7)(cid:11)(cid:3)(cid:13)(cid:18)(cid:13)(cid:10)(cid:7)(cid:2)(cid:14)(cid:18)(cid:15)(cid:7)(cid:7)
Angiotensin-converting enzyme (ACE1, ACE2) gene variants are associated with COVID19 severity depending on the hypertension status.

Background: The Angiotensin system is implicated in the pathogenesis of COVID19. First, ACE2 is the cellular receptor for SARS-COv-2, and expression of the ACE2 gene could regulate the individuals susceptibility to infection. In addition, the balance between ACE1 and ACE activity has been implicated in the pathogenesis of respiratory diseases and could play a role in the severity of COVID19. Functional ACE1 and ACE2 gene polymorphisms have been associated with the risk of cardiovascular and pulmonary diseases, and could thus also contribute to the outcome of COVID19. Methods: We studied 204 COVID19 patients (137 non-severe and 67 severe-ICU cases) and 536 age-matched controls. The ACE1 indel and ACE2 rs2285666 polymorphism were determined. Variables frequencies were compared between the groups by logistic regression. We also sequenced the ACE2 coding nucleotides in a group of patients. Results: Severe COVID19 was associated with hypertension male gender (p<0.001), hypertension (p=0.006), hypercholesterolaemia (p=0.046), and the ACE1-DD genotype (p=0.049). In the multiple logistic regression hypertension (p=0.02, OR=2.26, 95CI=1.12-4.63) and male gender (p=0.002; OR=3.15, 95CI=1.56-6.66) remained as independent significant predictors of severity. The ACE2 polymorphism was not associated with the disease outcome. The ACE2 sequencing showed no coding sequence variants that could explain an increased risk of developing COVID19. Conclusions: Adverse outcome of COVID19 was associated with male gender, hypertension, hypercholesterolemia and the ACE1 genotype. The ACE1-indel was a significant risk factor for severe COVID19, but the effect was dependent on the hypertensive status.
Comparison of locations used in cotton-breeding trials

Cotton-breeding trials are conducted annually throughout the commercial growing regions of eastern Australia. Accumulated yield data for the period 1974-85 were assembled into an incomplete cultivar x location x year table. This table was then analysed in order to compare test locations. The method involved analysing cultivar x location tables separately for each year, using symmetric joint regression analysis. Results were then collected into location x year tables and further analysed. Four criteria for comparing test locations were developed. The discrimination criterion is important when locations are evaluated in terms of their ability to display cultivar differences. The representation criterion measures the ability of a location to mirror the relative performance of cultivars over all locations. The other 2 criteria are concerned with the mean yield at test locations and the stability of location yields over years. Based on the 4 criteria, preferred test locations are recommended.
Prolactin Induces Switching of T-Cell Receptor Gene Expression from α to γ in Rat Nb2 Pre-T Lymphoma Cells☆☆☆

Abstract Prolactin (PRL) is considered to be an immunomodulator. This study was conducted to analyze the actions of PRL on the gene expressions for T-cell receptor (TCR) chains in a rat pre-T lymphoma cell line, Nb2. PRL remarkably stimulated the gene expression for TCR γ chain within 4 h and suppressed TCR α chain mRNA expression within 8 h in Nb2 cells. The expression of TCR β mRNA in the cells was concomitantly, but to a less extent, reppressed by the hormone treatment. These results suggest that PRL may participate in the regulation of mammalian T-cell differentiation and development.
UNDERSTANDING THE ACADEMIC USE OF SOCIAL MEDIA: INTEGRATION OF PERSONALITY WITH TAM

The emergence of Web 2.0 applications has changed the entire landscape of information sharing and empowering every individual to create, access and sharing information through its multiple channels. These applications are generally known as social media or social web and considerably popular among student which assists them in achieving of effective learning. However, students consider this platform as a source of entertainment and use it considerably for their social interactions. This attitude of students has revolutionized these channels into a source of distraction, which diverts their attention from learning and academic achievements. Previous research mainly highlighted its importance to different aspects of human communication and students’ academic performance. Anyhow, less effort has been made to understand student academic use of social media and find factors that can improve student online connectivity for academic purposes and to avoid distraction. The purpose of the current study is to understand the student’s use of social media for academic purposes, which is the basic step in reducing students’ online distraction by integrating their psychological characteristics and beliefs. Data for the current research was collected through a survey from undergraduate students of top five ranking research universities Malaysia. The collected data analyzed with help of SPSS Amos (Version-20) by applying structural equation modeling (SEM) techniques. Technology Acceptance Models [1] and Five Factor Model of personality [2] were used as a theoretical approach, our finding shows that information quality is the most important factor in acceptance of social media for academic purposes. Furthermore, study limitation and future direction are also discussed.
Impact of a Novel Training Approach on Body Composition in the Elderly

Background/Purpose: Deterioration of body composition with advancing age is related to functional decline. This study examined the effects of a novel progressive exercise training program on body composition in individuals > 70 y, at risk of losing functional independence. Methods: Fifty participants (33 females, 75 ± 4.5 y) performed 45-60 min sessions, 3 times per week, for a total of 12 weeks. Training consisted of 2 distinct phases. For Phase I (First 4 weeks) participants were randomized to aerobic training consisting of walking or cycling at 50% of heart rate reserve, or PRIME (Peripheral Remodeling through Intermittent Muscular Exercise) designed to stimulate the major muscle groups (8 targeted exercises) at 40%-50% of maximal voluntary capacity, for a duration of 3-6 min, or 45 to 90 contractions. Phase I was followed by 8 weeks of combined aerobic and resistance training using established exercise guidelines (phase II). Body composition (Fat Free Mass, Fat Mass, body fat %, Skeletal Muscle Index, bone mineral content and density) were measured using Dual X-ray Absorptiometry, before (V1), and after Phase I (V2) and II (V3). Results: Compared to V1, V3 values for Body Fat% (p = 0.005) decreased, and Fat Free Mass (p = 0.03) and Skeletal Muscle Index (p = 0.05) increased, in both groups. Changes Changes in Bone Mineral Content and Bone Mineral Density were significantly greater for PRIME compared to the aerobically trained group (p < 0.05). Conclusion: Both groups improved body fat percentage, increased SMI, and BMC and BMD, in specific sites measured. Uniquely, participants whom initiated training with PRIME experienced greater improvements in BMC and BMD. These data support a paradigm shift in the order of exercise training, for older adults at risk of losing independence, with initial emphasis on a moderate to high intensity localized exercise stimulus, rather than moderate to high intensity systemic exercise.