Miracle-dz/UniFAR-FTUs huggingface dataset:
Tuning of Phase-Locked Loops for Power Converters Under Distorted Utility Conditions

This paper presents a novel approach in the tuning of phase-locked loops (PLLs) for power electronic converters. PLLs are implemented inside a higher level controller to estimate the grid-voltage phase angle and then control the energy transfer between the power converter and the AC mains. The tuning of the PLL is not a trivial task, particularly when considering power-quality phenomena. In a general way, PLLs with a low bandwidth (low-gain PLLs) are required when handling distorted voltages. It is analytically demonstrated in this paper that low-gain PLLs have more tradeoffs than high-gain PLLs (e.g., PLLs for communications); it is not possible to optimize the settling time for a phase jump without making slower the PLL response to frequency variations. Existing tuning methods do not take into account low-gain features, which may result in nonoptimum designs. The proposed PLL tuning methodology is based on inspection of frequency-domain diagrams and, contrary to the other existing tuning methods, takes into account ldquolow-gainrdquo dynamics. It assures an optimized performance in the presence of any kind of disturbances in the grid. From a practical point of view, the proposed tuning procedure is very intuitive for controller designs. Some significant design examples and experimental results, obtained from a discrete implementation (dSpace platform), are provided in order to validate the theoretical approaches.
Self-deploying Service Graphs over ELwUD (EHU-OEF Lightweight UNIFY Domain)

The service delivery has evolved during the last years. The introduction of Software Defined Networking (SDN) and Network Functions Virtualisation (NFV) has driven network programmability to foster the innovation in the provisioning of new services. The orchestration and dynamic deployment of resources for service delivery are relevant topics covered by this demonstration.
Robust cooperative spectrum sensing in full-duplex cognitive radio networks

Recently, a “listen-and-talk” (LAT) protocol for full-duplex (FD) cognitive radio networks (CRNs) has been proposed to allow simultaneous sensing and transmission of secondary users (SUs). However, sensing impairment due to self-interference remains a major problem in the FD protocol. In this paper, we explore the cooperative spectrum sensing (CSS) scheme to improve sensing reliability in FD CRNs. Also, we consider the robustness of the proposed scheme against the possible existence of misbehaving nodes. The interference from the transmitting SU to other SUs leads to significant difference between the proposed CSS scheme and conventional half-duplex ones. Specifically, we adopt a confidence-only report rule and a weighted majority fusion rule to alleviate the interference issue and impact of abnormal nodes, respectively.
Proline Dehydrogenase Regulates Redox State and Respiratory Metabolism in Trypanosoma cruzi

Over the past three decades, L-proline has become recognized as an important metabolite for trypanosomatids. It is involved in a number of key processes, including energy metabolism, resistance to oxidative and nutritional stress and osmoregulation. In addition, this amino acid supports critical parasite life cycle processes by acting as an energy source, thus enabling host-cell invasion by the parasite and subsequent parasite differentiation. In this paper, we demonstrate that L-proline is oxidized to Δ1-pyrroline-5-carboxylate (P5C) by the enzyme proline dehydrogenase (TcPRODH, E.C. 1.5.99.8) localized in Trypanosoma cruzi mitochondria. When expressed in its active form in Escherichia coli, TcPRODH exhibits a Km of 16.58±1.69 µM and a Vmax of 66±2 nmol/min mg. Furthermore, we demonstrate that TcPRODH is a FAD-dependent dimeric state protein. TcPRODH mRNA and protein expression are strongly upregulated in the intracellular epimastigote, a stage which requires an external supply of proline. In addition, when Saccharomyces cerevisiae null mutants for this gene (PUT1) were complemented with the TcPRODH gene, diminished free intracellular proline levels and an enhanced sensitivity to oxidative stress in comparison to the null mutant were observed, supporting the hypothesis that free proline accumulation constitutes a defense against oxidative imbalance. Finally, we show that proline oxidation increases cytochrome c oxidase activity in mitochondrial vesicles. Overall, these results demonstrate that TcPRODH is involved in proline-dependant cytoprotection during periods of oxidative imbalance and also shed light on the participation of proline in energy metabolism, which drives critical processes of the T. cruzi life cycle.
A new self-adapting architecture for feature detection

In this paper, we present a FPGA based flexible self-adapting architecture for two features detectors, the Canny edge detector and the Harris corner detector, with reduced latency and memory requirements, and supporting variable resolution images. The new architecture uses neighbourhood extractors that can self-adapt its parameters on-the-fly and algorithm simplifications to reduce mathematical complexity, memory requirements and latency without losing reliability.
Comparison of the Bacterial Composition and Structure in Symptomatic and Asymptomatic Endodontic Infections Associated with Root-Filled Teeth Using Pyrosequencing

Residual microorganisms and/or re-infections are a major cause for root canal therapy failure. Understanding of the bacterial content could improve treatment protocols. Fifty samples from 25 symptomatic and 25 asymptomatic previously root-filled teeth were collected from Sudanese patients with periradicular lesions. Amplified 16S rRNA gene (V1-V2) variable regions were subjected to pyrosequencing (FLX 454) to determine the bacterial profile. Obtained quality-controlled sequences from forty samples were classified into 741 operational taxonomic units (OTUs) at 3% dissimilarity, 525 at 5% dissimilarity and 297 at 10% dissimilarity, approximately corresponding to species-, genus- and class levels. The most abundant phyla were: Firmicutes (29.9%), Proteobacteria (26.1%), Actinobacteria (22.72%), Bacteroidetes (13.31%) and Fusobacteria (4.55%). Symptomatic patients had more Firmicutes and Fusobacteria than asymptomatic patients, while asymptomatic patients showed more Proteobacteria and Actinobacteria. Interaction of disease status and age was observed by two-way ANOSIM. Canonical correspondence analysis for age, tooth restoration and disease status showed a correlation of disease status with the composition and prevalence of different members of the microbial community. The pyrosequencing analysis revealed a distinctly higher diversity of the microbiota compared to earlier reports. The comparison of symptomatic and asymptomatic patients showed a clear association of the composition of the bacterial community with the presence and absence of symptoms in conjunction with the patients’ age.
Explaining BGP Slow Table Transfers : Implementing a TCP Delay Analyzer Technical Report # 110020

Although there have been a plethora of studies on TCP performance in supporting of various applications, relatively little is known about the interaction between TCP and BGP, which is a specific application running on top of TCP. This paper investigates BGP’s slow route propagation by analyzing packet traces collected from a large ISP and RouteViews Oregon collector. In particular we focus on the prolonged periods of BGP routing table transfers and examine in detail the interplay between TCP and BGP. In addition to the problems reported in previous literature, our study reveals a number of additional TCP transport problems, that collectively induce significant delay. Furthermore, we develop a tool, named T-DAT, that can be deployed together with BGP data collectors to infer various factors behind the observed delay, including the BGP’s sending and receiving behavior, TCP’s parameter settings, TCP’s flow and congestion control, and the network path limitation. Identifying these delay contributing factors makes an important step for ISPs and router vendors to diagnose and improve the BGP table transfer performance.
Complex product structures on 6-dimensional nilpotent Lie algebras

Abstract We study complex product structures on nilpotent Lie algebras, establishing some of their main properties, and then we restrict ourselves to 6 dimensions, obtaining the classification of 6-dimensional nilpotent Lie algebras admitting such structures. A study is made of the torsion-free connection associated to the complex product structure, and we consider also the associated foliations on the corresponding simply connected nilpotent Lie groups. 2000 Mathematics Subject Classification: 17B60; 53C15, 53C30.
Development of a wheelchair-based rehabilitation robotic system (KARES II) with various human-robot interaction interfaces for the disabled

This paper describes our ongoing project about a new wheelchair-based rehabilitation robotic system for the disabled, called KARES II (KAIST Rehabilitation Engineering Service system II). We shall concentrate on the issues of design and visual servoing of the robotic arm with three human-robot interaction subsystems: an eye-mouse, an EMG interface, and a haptic suit interface. First, the specific required tasks of the robotic arm system are defined according to extensive surveys and interviews with the potential users, i.e., the people with spinal cord injury. In order to design the robotic arm for the predefined tasks effectively, a target-oriented design procedure is adopted. Next, a visual servoing subsystem for the robotic arm is designed and is integrated to perform the predefined tasks in an uncertain/time-varying environment. Finally, various human-robot interaction devices are proposed as interface for diverse users with physical disability. One or more of these interfaces may be selected on the basis of each user's need. These diverse input devices can be used in a complementary way according to the user's preference and to the degree of disability. Experimental results show that all subsystems can perform the defined tasks through the robotic arm in an integrated way.
Understanding Productivity During the Argentine Crisis

This paper studies resource misallocation in the Argentine manufacturing (1997-2002) sector using the methodology of Hsieh and Klenow (2008). The study shows that the potential gains in terms of aggregate total factor productivity of equalizing marginal productivities of factor inputs across firms in narrowly defined industries is between 50% and 55% in relatively normal years, slightly above the 43% found by HK for the US. During the 2002 crisis the reallocation gains climbed to 60/80%. Using HK's concept of TFPR as a measure of wedges in marginal products across firms, we find that the dispersion of wedges across firms in 1997 is similar to the USA one and in 2002 it is 20% higher; and that TFPR is strongly correlated with firm level productivity (and size). Firm productivity and TFPR are positively correlated with size, age, exporting status and foreign ownership, indicating that more productive firms are likely to be larger, older, exporters, foreign owned and have relatively higher marginal products. These results should be taken with caution due to the measurement error introduced by the coarseness of the factor input data available.
Stevens-Johnson Syndrome Patient Received Combination Chemotherapy Gemcitabine, Cisplatin, and 5-FU for Biliary Tract Cancer

Stevens-Johnson syndrome has been an acute, usually self-limiting disease of the skin and mucous membranes. This case report has presented an evidence of the development Stevens - Johnson syndrome associated with combination chemotherapy administration of 5FU, gemcitabin and cisplatin in a patient with biliary tract cancer. Our case was a 54-year-old woman patient, a case of biliary tract cancer who has developed more severe symptoms of Stevens-Johnson syndrome. Diagnosis has confirmed by skin biopsy of an affected area . The patient has improved with supportive care, and during 25 day occurred recovery. Although Stevens-Johnson syndrome has been a rare toxicity, physicians should pay a special attention to the monitoring of biliary tract cancer patients on combination chemotherapy with 5FU, cisplatin and gemcitabin.
Automatic Induction of Rules for Text Simpli cation

Long and complicated sentences pose various problems to many stateof-the-art natural language technologies. We have been exploring methods to automatically transform such sentences as to make them simpler. These methods involve the use of a rule-based system, driven by the syntax of the text in the domain of interest. Hand-crafting rules for every domain is time-consuming and impractical. This paper describes an algorithm and an implementation by which generalized rules for simpli cation are automatically induced from annotated training material with a novel partial parsing technique which combines constituent structure and dependency information. This algorithm described in the paper employs example-based generalizations on linguistically-motivated structures. 1 The Need for Text Simpli cation Long and complicated sentences pose various problems to many state-of-theart natural language technologies. For example, in parsing, as sentences become syntactically more complex, the number of parses increases, and there is a greater likelihood for an incorrect parse. In machine translation, complex sentences lead to increased ambiguity and potentially unsatisfactory translations. Complicated sentences can also lead to confusion in assembly/use/maintenance manuals for complex equipment. We have been exploring methods to automatically simplify such sentences [Chandrasekar, 1994], [Chandrasekar et al, 1996]. Consider, for example, the following sentence: On leave from the National Centre for Software Technology, Gulmohar Cross Road No. 9, Juhu, Mumbai 400 049, India
THE SIZE OF THE PRIZE: TESTING RENT-DISSIPATION WHEN TRANSFER QUANTITY IS ENDOGENOUS

We present a transfer-seeking model of political economy in which the size of the transfer is determined endogenously, and in which over-dissipation of rents is predicted even under conditions of risk-neutrality and perfect rationality. We implement an empirical test of this model by collecting behavioral data in a laboratory experiment. We confirm the existence of behavior that leads to over-dissipation of rents in games with both symmetric and asymmetric political power. We also confirm the hypotheses that lowering the political power of one player can lead to smaller rent-seeking expenditures and to larger transfers. We observe behavior that deviates from dominant strategies.
Connect commercial films with realities

Broadcast TV program is a quite informative media resource which records our daily life over the time. While for emphasizing real-time reporting, those out-of-date video archives once were elaborately created with high quality are always left without being fully used. In this paper, many known state-of-the-art retrieval technologies are integrated into a commercial film retrieval system, which manages to index a huge commercial dataset archived from five TV channels within recent three years. The final purpose is to connect images queried by users with our archived broadcast video dataset via searching relevant commercials and accessing their broadcast information, such as air time and replay frequency. This system also serves as one part of our ongoing broadcast TV program reusing project.
A SiGe monolithically integrated 75 GHz push-push VCO

In this paper we present a fully monolithically integrated push-push VCO fabricated in a production-near SiGe:C bipolar technology. The output frequency of the oscillator can be varactor tuned from 71.3 GHz to 75.8 GHz. In this tuning range the measured output power is 3.5 /spl plusmn/ 0.4 dBm and the measured single sideband phase noise is less than -105dBc/Hz at 1MHz offset frequency. The SiGe:C bipolar transistors show a maximum transit frequency f/sub T/ = 200 GHz and a maximum frequency of oscillation f/sub max/ = 275 GHz. For the passive circuitry transmission-line components, MIM-capacitors and integrated resistors are used.
VOLUME CONSERVATION OF 3 D SURFACE TRIANGULAR MESH SMOOTHING

Abstract. Present paper deals with a shrinkage free smoothing of triangular isotropic meshes over three-dimensional surfaces. Adopted approach is based on Laplacian smoothing combining in alternating manner positive and negative weights in consecutive cycles of the smoothing. Since the aim is to improve the shape of individual elements of the mesh rather than to get rid of noise, the weights are derived in a very simple way using a “do-not-harm” concept. The paper also extends the application of the smoothing from closed surfaces to open surfaces and their combination. The performance and capabilities of the presented methodology are demonstrated on several examples.
A study of political interest, competence, advocacy and awareness among social work students in the state of Georgia

SOCIAL WORK STACKHOUSE-POWE, DEMETRA L. B.S.W. FLORIDA STATE UNIVERSITY, 2004 M.S.W. FLORIDA A&M UNIVERSITY, 2008 A STUDY OF POLITICAL INTEREST. COMPETENCE. ADVOCACY AND AWARENESS AMONG SOCIAL WORK STUDENTS IN THE STATE OF GEORGIA Committee Chair: Richard Lyle, Ph.D. Dissertation dated July 2014 This study examined to what degree social work students participate politically. This study also seeks to understand students' political interests, competencies, advocacy efforts and awareness, which are factors that contribute to political activism among social work students. Two hundred and eleven (211) participants were selected for the study, utilizing non-probability convenience sampling. The survey participants were composed of social work students enrolled in an accredited social work program in the state of Georgia, whereas the programs are also governed by the Council of Social Work Education. The findings ofthe study indicated that, ofthe social work students, a majority disagreed that they were politically interested, competent, participated in political advocacy or aware ofpolitical issues that impact social policy. A STUDY OF POLITICAL INTEREST, COMPETENCE, ADVOCACY AND AWARENESS AMONG SOCIAL WORK STUDENTS IN THE STATE OF GEORGIA
The relationship between hamstring muscle shortness and dynamic and static balances in young healthy individuals

كچ ي هد :فده و هقباس و ينميا رب رچسوپ لرتنك رد للاتخا تيلاعف ماگنه رد تاكرح تيفيك اه ي و هرمزور ريرايا ييشزرو يم رب رروم لماوع زا يكي . دراذگ رچسوپ لرتنك فاطعنا يم تلاضع يريذپ يلع . دشاب اتتيسن عويش مغر يهاياوك داييز ه رد ،گنيرتسمه هلضع ي چ هعلاطم طاتارا يا ن يسررب لداعا اب هلضع نيا يهااوك هديش هيعلاطم نييا زا فديه . تيسا و كيااتسا لداعا اب گنيرتسمه هلضع يهااوك طاتارا يسررب يم ملاس ناناوج رد كيمانيد . دشاب شور و داوم ‌ :اه يور هك يعطقم هعلاطم نيا رد 04 ( ملاس ناوج رفن 04 و گنيرتيسمه هلضع يهااوك هب لاتتم رفن 04 زا ،تفرگ ماجنا )يهااوك نودب رفن نومزآ 04 04 . ديش هدافتيسا گنيرتيسمه هليضع لويو ييسررب يارب م زا يي ناز باج ه اج يي ب راشف زكرم تاناسون ه صخاش ناونع و اتسيا لداعا ياه مايگنه اييوپ ا ي نداتيس ور ي يي ك ور ايپ ي ههفيص ن و لداعا شجنس ي ور ارب ي سررب ي ك ي ف ي ت ا ماگنه لداعا لرتنك ي داج جراخ شاشتغا ي درگ هدافتسا ي د . هتفاي ‌ :اه اقم ي هس ي و نيگنايم عم فارهنا ي را عضو رد راشف زكرم تاناسون ي ت اه ي شايشتغا نوديب و شاشتغا لامعا و دروم هورگ ود رد ينعم توافا دهاش ار يراد دادن ناشن ( 40 / 4 p< ) . هجيتن ‌ :يريگ ا جياتن ي ن واتارا هعلاطم ي ب ار ي ن م و گنيرتسمه هلضع يهااوك ي ناز يب رايشف زكرم تاناسون ه ناوينع و اتسيا لداعا صخاش دادن ناشن ايوپ . هژاو ‌ :يديلك ياه فاطعنا يريذپ ، يتلكسا هلضع ، يتيعضو لداعا
Tuberculous Pleurisy: An Update

Tuberculous pleurisy is the most common form of extrapulmonary tuberculosis in Korea. Tuberculous pleurisy presents a diagnostic and therapeutic problem due to the limitations of traditional diagnostic tools. There have been many clinical research works during the past decade. Recent studies have provided new insight into the tuberculous pleurisy, which have a large impact on clinical practice. This review is a general overview of tuberculous pleurisy with a focus on recent findings on the diagnosis and management.
Fear memory formation can affect a different memory: fear conditioning affects the extinction, but not retrieval, of conditioned taste aversion (CTA) memory

The formation of fear memory to a specific stimulus leads to subsequent fearful response to that stimulus. However, it is not apparent whether the formation of fear memory can affect other memories. We study whether specific fearful experience leading to fear memory affects different memories formation and extinction. We revealed that cued fear conditioning, but not unpaired or naïve training, inhibited the extinction of conditioned taste aversion (CTA) memory that was formed after fear conditioning training in rats. Fear conditioning had no effect on retrieval of CTA memory but specifically impaired its extinction. Extinguished fear memory, after fear extinction training, had no effect on future CTA memory extinction. Fear conditioning had no effect on CTA memory extinction if CTA memory was formed before fear conditioning. Conditioned taste aversion had no effect on fear conditioning memory extinction. We conclude that active cued fear conditioning memory can affect specifically the extinction, but not the formation, of future different memory.
Dynamic multimedia stream adaptation and rate control for heterogeneous networks

Dynamic adaptation of multimedia content is seen as an important feature of next generation networks and pervasive systems enabling terminals and applications to adapt to changes in e.g. context, access network, and available Quality-of-Service (QoS) due to mobility of users, devices or sessions. We present the architecture of a multimedia stream adaptation service which enables communication between terminals having heterogeneous hardware and software capabilities and served by heterogeneous networks. The service runs on special content adaptation nodes which can be placed at any location within the network. The flexible structure of our architecture allows using a variety of different adaptation engines. A generic transcoding engine is used to change the codec of streams. An MPEG-21 Digital Item Adaptation (DIA) based transformation engine allows adjusting the data rate of scalable media streams. An intelligent decision-taking engine implements adaptive flow control which takes into account current network QoS parameters and congestion information. Measurements demonstrate the quality gains achieved through adaptive congestion control mechanisms under conditions typical for a heterogeneous network.