Miracle-dz/UniFAR-FTUs huggingface dataset:
Dynamic Channel Techniques in Mobile Cellular Networks Handover and Allocation

This paper deals with an efficient Dynamic Chan- nel Allocation @CA) technique applicable to terrestrial mobile cellular networks. A channel (or resource) is a fixed frequency bandwidth (FDMA), a specific time-slot within a frame (TDMA), or a particular code (CDMA), depending on the multiple access technique used. A cost function has been defined by which the optimum channel to be assigned on demand can be se- lected. In addition, a suitable mobility model has been derived to determine the effects of handovers on network performance. The performance of the proposed DCA technique has been derived by computer simulations in terms of call blocking and handover failure probabilities. Comparisons with the classical Fixed Channel Allocation (FCA) technique and other dynamic allocation algorithms recently proposed in the literature have been carried out to validate the proposed technique.
Hybrid Approach for Energy Optimization in Wireless Sensor Networks Using PSO

Wireless sensor network (WSN) consists of sensor nodes which are spatially distributed for monitoring physical or environmental applications. In these networks the nodes have power source that is difficult to replace. Hence energy conservation is an important factor in the network in order to prolong the lifetime of the network. In this paper two clustering based algorithms, a heuristic and an evolutionary algorithm for WSN are discussed. This paper proposes an optimal radius algorithm and hybrid Particle Swarm Optimization (PSO) algorithm for wireless sensor network. These proposed algorithms are involved for proper selection of cluster head to increase the life time of the WSN. The simulation results display that the proposed algorithm extends the life time of the network by reducing the number of dead nodes when compared to basic PSO and LEACH algorithm. It also has better throughput and high residual energy when compared to LEACH and PSO.
Pediatric kidney transplantation: Experience over two decades

Introduction: Information on outcomes of pediatric renal transplantation in developing countries is limited to few single-center reports with small numbers. Methods: Medical records of patients who underwent kidney transplantation at a single tertiary care center were retrospectively reviewed for information on recipient and donor characteristics, immunosuppression, posttransplantation complications, anthropometry and graft and patient survival. Allograft and patient survival were estimated using Kaplan–Meier survival analysis; risk factors for acute and chronic rejection (AR and CR) and patient or allograft loss were examined using Cox regression. Results: During 1995–2017, 116 patients (84% boys) received 120 kidney allografts at the age of 13 ± 3.8 years, chiefly from live-related donors (76%). During median (range) 4.5 (0.8–19.5) years of follow-up, AR and CR were seen in 24% and 15.5% allografts. Ten (8.8%) patients died, chiefly due to septicemia, while 26 (21.7%) allografts were lost, most often to CR. Severe infections included septicemia (13%), urinary (23%) or respiratory tract (9%) infections, cytomegalovirus (11%), and chronic viral hepatitis (7%). At 1, 3, 5, 10 and 15 years, patient survival was estimated at 95.5%, 94.4%, 91.7%, 89.2% and 79.3%, respectively, while allograft survival was 92.2%, 87.2%, 85.6%, 77.6% and 77.6%, respectively. Final height, at −2.2 ± 1.3 standard deviation scores, was significantly improved from baseline (P = 0.001). Conclusions: Pediatric kidney transplantation in developing countries is associated with similar patient and allograft survival as compared to developed regions. While severe infections cause serious morbidity and mortality, rates of immunological complication are similar to developed regions. While patients show significant height gain, final stature is subnormal.
A survey of trainers on the use of swimming and other water-based exercise for Thoroughbred racehorses in Australia

We aimed to determine the extent of use of water-based exercise and to describe swimming training practices in Thoroughbred racehorses in Victoria, Australia. A convenience sample of 118 trainers were interviewed, information relating to swimming protocols, perceived benefits and contra-indications, and use of other water-based exercise recorded and descriptive data analyses performed. Water-based exercise was used by 85.6% (n=101) trainers: 82.2% (n=97) swimming, 25.4% (n=30) using a water walker, 13.6% (n=16) incorporating ridden trotting (‘surging’) exercise in chest deep water, and 1.7% (n=2) using an underwater treadmill. Common reasons (and trainer %) for swimming were training variety and mental ‘freshness’ (62.9%), part of the exercise regime on ‘slow’ days (61.9%) and fitness benefits (60.8%). These horses swam a median of 50-90 m (ranging from a minimum of 40-180 m to a maximum of 40-450 m), continuously or as intervals, after track work, once or twice daily a median 3 days/week (range 0.5-7). Swimming for 50 (range 40-120 m) to 90 m (range 40-200 m) before track work 7 days/week (range 3-7) was used by 43 of the 97 trainers (44.3%) to manage horses prone to exertional rhabdomyolysis. Swimming was used to replace fast work by three trainers who swam horses with limb injuries up to 270-450 m. Common reasons (and % trainers) for not swimming individual horses were demeanour/distress (73.2%), previous swim colic (35.1%) or exercise induced pulmonary haemorrhage (35.1%) although only five trainers had ever seen epistaxis after swimming exercise. Swimming is widely used in training Thoroughbred horses in Australia yet trainer opinions particularly on fitness benefits, contra-indications and protocols vary widely and need to be scientifically validated. Diversifying training activities is a common strategy for managing racehorses in training, yet a better understanding of the best use of swimming and other cross-training options is needed so that evidence-based recommendations can be made.
Self-paced exploration of the Austrian National Library through thought

The results of a self-paced Brain-Computer Interface (BCI) are presented which are based on the detection of senorimotor electroencephalogram rhythms during motor imagery. The participants were given the task of moving through a virtual model of the Austrian National Library by performing motor imagery. This work shows that five participants which were trained in a synchronous BCI could sucessfully perform the asynchronous experiment. K eywords: Brain-Computer Interface, asynchronous, self-paced, motor imagery, navigation, virtual environment
Profile of boys with posterior urethral valves from a tertiary care center in a developing country

Introduction: Posterior urethral valves (PUVs) are the most common cause of obstructive uropathy in boys. While most patientsin developed countries are diagnosed in the antenatal period, our patients often present late which adversely affects their outcome.This retrospective study was aimed to study the clinical profile of boys with PUV at follow-up. Methods: Records of 45 boyswith PUV who were in follow-up for at least 1-year were retrieved between February and December 2015. Age of presentation,signs and symptoms, anthropometry, radiological findings, surgical interventions, and biochemical investigations were recordedin a pre-structured pro forma. The data were later analyzed on an Excel spreadsheet. Results: The mean age at the diagnosisof PUV was 16
DNA released from neutrophil extracellular traps (NETs) activates pancreatic stellate cells and enhances pancreatic tumor growth

ABSTRACT Neutrophil extracellular trap (NET) formation results in the expulsion of granulocyte proteins and DNA into the extracellular space. This process is mediated by the enzyme peptidyl arginine deiminase 4 (PADI4) and translocation of elastase to the nucleus. NET formation, marked by increased levels of extracellular DNA, promotes pancreatic cancer proliferation and metastasis. Mice deficient in Padi4 demonstrate decreased pancreatic tumor growth, associated with a reduction in circulating extracellular DNA levels, diminished pancreatic stromal activation and improved survival in murine orthotopic pancreatic adenocarcinoma. Transplantation of Padi4−/− bone marrow into genetically engineered mice with Kras driven pancreatic adenocarcinoma (Pdx1-Cre:KrasG12D/+, KC mice) limits the frequency of invasive cancers when compared with syngeneic controls. DNA from neutrophils activates pancreatic stellate cells that form dense, fibrous stroma which can promote and enable tumor proliferation. DNase treatment diminishes murine tumor growth and stromal activation to reverse the effect of NETs within the tumor microenvironment. Furthermore, deletion of the receptor for advanced glycation end products (RAGE) in pancreatic stellate cells abrogates the effects of DNA in promoting stellate cell proliferation and decreases tumor growth. Circulating neutrophil-derived DNA correlates with the stage in patients with pancreatic ductal adenocarcinoma, confirming the role of NETs in human pancreatic cancer. These findings support further investigation into targeting of NETs, PADI4 and extracellular DNA as a potential treatment strategy in patients with pancreatic cancer. Trial Registration: This study reports correlative data from a clinical trial registered with clinicaltrials.gov, NCT01978184 (November 7, 2013).
CCD noise filtering based on surface diffusion model combined with min/max curvature

We propose to combine the min/max curvature to the surface diffusion model. The resulting technique is an automatic, extremely robust, computationally efficient, and a straightforward scheme. The flow under min/max curvature was presented by Malladi and Sethian (see Graphic. Models Image Processing, vol.58, no.2, p.127-141, 1996) in a differential equation in terms of the image intensity. If it is combined to the surface diffusion model then the new scheme automatically picks the termination criteria; continued application of the scheme produces no further change. In other words it has a convergence state. It has another important advantage over the MCD (mean curvature diffusion) and other diffusion models; removing notch noise on the side of a structure does not diffuse the shape of the structure.
Type A Insulin Resistance Syndrome- Novel insulin receptor gene mutation and familiar phenotypic variability

Type A Insulin Resistance Syndrome is due to heterozygous mutations in the insulin receptor (INSR) gene or its signaling pathway. We present a premenarcheal 14 year-old girl with normal BMI, severe hirsutism, acanthosis nigricans, clitoral hypertrophy, deep voice, enlarged polycystic ovaries, severe hyperinsulinemia and biochemical hyperandrogenism. We identified a novel heterozygous missense variant in the tyrosine kinase domain of INSR (p.Leu1150Pro) and an heterozygous missense variant in SH2B adapter protein 1 involved in the insulin pathway (p.Ala663Val). Interestingly, the patients’ mother and brother had the same INSR mutation although of a milder phenotype, reason why their IR went undiagnosed.
Parallel method of moments analysis of microstrip structures using the MPI library

In this paper we will present a parallel Method of Moments (MoM for short) technique using the MPI library. Here, the MoM is used to analyze microstrip structures. The main goals to achieve are efficient parallel coefficient computation and efficient linear equation system solving. The efficiency and accuracy of the parallel-processing MoM code is analyzed trough several examples.
A New Three-party Key Exchange Protocol Based on Diffie-Hellman

The goal of key exchange protocol is to establish a common and secure session key using the interactive communications. The existing schemes are usually in the pattern of ‘user-server-user’, so are weak in reality. In this paper, a new three-party key exchange protocol based on Diffie-Hellman was proposed which contains the following characteristics: without server; providing key secrecy and forward secrecy; ensuring no key control; ensuring known-key secrecy.
Porting TinyOS to an Amulet2e Sensor Mote

This report details the work carried out for a third year project in the School of Computer Science, at the University of Manchester. TinyOS is an industry standard operating system for wireless sensor motes: small computers designed to collect data and wirelessly communicate with one another. The Amulet2e is one such mote, and a successful port of TinyOS was produced for it. Support for non-standard mote functionality was also added, enabling the full use of the Amulet2e sensor mote hardware from TinyOS. Basic simulation support for the lower level systems of the mote was created, and an automated build chain was developed to ease the development process. Whilst porting TinyOS, it was noted that it can be difficult to produce programs for TinyOS, especially for developers new to the operating system. A new language was designed and implemented to help alleviate this problem. This language was then used to create some demonstration applications, which allowed for some simple experiments to be carried out using TinyOS on the Amulet2e sensor mote.
Una Representación Alternativa para Textos

Hasta la actualidad, el manejo de grandes colecciones de datos ha presentado complejas soluciones, algunas más competentes que otras. Entre las estrategias consideradas pueden mencionarse la reducción de dimensiones [4], text mining[3], machine learning [5], variantes de Natural Language Processing[6], etc. La presente es una propuesta que pretende hallar una solución reorganizando sistemáticamente los contenidos textuales o no. Es posible utilizar la misma para ver en forma simbólica y esquemática un texto y a la vez representar metódicamente su contenido. Esto serviría de base para estructuras de procesamiento automático como la presentada en [1], para las estructuras representativas de oraciones textuales (allí denominadas Estructuras de Composición Interna o Eci). Se presentará una mecánica austera y pragmática, ya probada empíricamente en [1], donde se reprodujo un diagrama resultante de la transformación que aquí se describe como parte de una encuesta. En ese mismo trabajo, como resultado de la mencionada encuesta, se halló que la totalidad de los encuestados fue capaz de contestar preguntas acertadamente a partir del contenido simbolizado. El resto de este trabajo se organiza de la siguiente manera: sección II descripción de los fundamentos, sección III, un caso de muestra, sección IV casos de ambigüedad, sección V contradicciones y errores. Finalmente en la sección VI se darán algunas conclusiones y trabajo a futuro.
Effect of arsenic exposure on human telomerase reverse transcriptase (hTERT) gene expression: Risk of cardiovascular diseases

Background: Exposure to inorganic arsenic (iAs) through drinking water is currently a serious threat to public health of millions of people worldwide including Bangladesh. Some recent studies have shown that telomere dysfunction is emerging as an important factor in the pathogenesis of different cardiovascular diseases. Arsenic plays significant role on telomere dysfunction by altering the expression of telomere-related genes. The study was aimed to investigate the effects of arsenic on hTERT mRNA levels and their combined role in increasing CVD susceptibility. Methods: In this cross sectional study, total of 50 CVD patients who underwent open heart surgery were recruited for this study. Urine, nail and cardiac tissue samples were collected and analyzed for As. Blood samples were quantified for hTERT expression analysis using real-time polymerase chain reaction. Results: The hTERT mRNA expression was found approx. 10 fold higher in the As-exposed patients than the As-unexposed patients (p<0.01). A strong positive correlation (p<0.01, R>0.3) was found between the hTERT mRNA levels and As contents in the cardiac tissue, nail and urine samples of the study subjects. The significant increase (approx. 4 fold) in the hTERT mRNA expression was found in the patients with coronary artery disease (CAD) than the non-CAD patients. Conclusions: The results of the study suggest that arsenic exposure increases hTERT mRNA expression which may in turn modify As-induced cardiovascular outcomes. The findings of this study will help to look deep into the association of As exposure in cardiovascular disease pathogenesis to open a new window in the diagnosis and treatment procedure of CVD. Bangladesh Med Res Counc Bull 2019; 45: 03-10
Regulatory Behavior of Monomeric Enzymes

A new concept, that of a mnemonical transition, is proposed to explain the departure from Michaelian behavior of monomeric enzymes following ordered reaction mechanisms. The concept integrates three simple ideas: the free enzyme occurs under two conformational states in equilibrium; the collision of any of these forms with the first substrate induces the same third new configuration required for proper substrate binding; the collision of only one of these enzyme forms with the last product stabilizes that form without any new conformational change. This whole set of definitions is equivalent to assuming that the free enzyme which is released after catalysis, is in a conformation different from the initial one. The enzyme can be said to “recall” for a while the configuration stabilized by the last product before relapsing to the initial conformation. The non-hyperbolic behavior is thus the consequence of the cooperation of two different conformations of the free enzyme to the overall reaction process. The reciprocal steady-state rate equations have been established and thoroughly discussed both for one-substrate, one-product and two-substrate, two-product mnemonical enzymes. The departure from Michaelian behavior does not appear as a consequence of a slow conformational transition, but is defined in a simpler way by the relative values of the activation free energies of conformation changes required for substrate binding on the two enzyme forms. A two-substrate, two-product enzyme following an ordered reaction mechanism and exhibiting the mnemonical transition has a very distinctive kinetic behavior. The curvature of the primary plots is observed with regard to the first substrate only, and is independant of the concentration of the second substrate as well as that of the first product. The enzyme is not inhibited by an excess of the substrate and the primary plots are either concave up or down. The slopes and the intercepts of the straight lines obtained in double reciprocal plots with the second substrate should give, when these are replotted against the reciprocal of the first substrate concentration, a straight line and a curve, respectively. The cooperation of the enzyme conformations to the overall reaction process can be either positive or negative. Since the reciprocal plots cannot exhibit an extreme, the extent of that cooperation can be measured by the numerical value of the second derivative of the reciprocal rate equation. The extent of cooperation between the free enzyme forms is highly controlled by the concentration of the last product. If the cooperation was already negative, the product strengthens that cooperation. If, on the other hand, the cooperation was positive, the product decreases or even reverses that cooperation. A very general property of one-sited mnemonical enzymes is that cooperation between enzyme forms is only kinetic and does not appear in the substrate binding isotherms.
Basilar Tip Aneurysm in Takayasu Arteritis

Takayasu arteritis is a chronic, inflammatory, progressive and idiopathic disease that mainly effects the aorta, its branches and pulmonary artery. It causes narrowing and occlusion of major vessels which manifest as a cerebrovascular insufficiency. Intracranial aneurysms are rarely observed in these patients. We report a case of basilar tip aneurysm with Takayasu arteritis. To our knowledge only 26 cases of Takayasu disease with basilar aneurysm have been reported in the literature. Management of Takayasu disease includes immunosuppression therapy; but coil embolization of co-incidental aneurysm can be hampered by limited and tortuous access routes. Hence, management of these patients requires great care and accurate selection of suitable guiding catheter, microcatheters and microwires. Microsurgery is the treatment of choice in case of intracranial aneurysm due to limited and tortuous access routes, however, coil embolization can be done with great care and accurate selection of suitable guiding catheter, microcatheters and microwires.
OBJECT TRACKING IN COMPUTER VISION Survey paper

Image processing is the process of manipulating image data in order to make it suitable for computer vision applications or to make it suitable to present it to humans. Computer system vision which goes beyond image processing helps to obtain relevant information from images and make decisions based on that information. The increasing availability of video sensors and high performance video processing hardware opens up exciting possibilities for tackling many video understanding problems. Vital to many video understanding problems are target classification and tracking. Real time object tracking is the difficult task in many computer vision applications such as surveillance, perceptual user interfaces, smart rooms, augmented reality, object-based video compression, and driver assistance. Tracking can be defined as the problem of estimating the trajectory of an object in the image plane as it moves around a scene Real-time tracking of non-rigid objects seen from a moving camera based on the mean shift iterations and finds the most probable target position in the current frame. Tracking of non-rigid objects based on visual features such as color and texture, whose statistical distributions characterize the object of interest, a very efficient visual object tracking algorithm based on the particle filter it characterizes the tracked objects using color and edge orientation histogram features tracking algorithm maintains multiple hypotheses and offers robustness against clutter or short period occlusions. In our survey we use method which efficiently detect and track object and perform with presents of noise and occlusion in video.