Miracle-dz/UniFAR-FTUs huggingface dataset:
Performance of Spatial Modulation in the Presence of Channel Estimation Errors

This work investigates the negative effects of channel estimation errors on the performance of spatial modulation (SM) when operating over flat Rayleigh fading channels. The pairwise error probability of the SM scheme is derived in the presence of channel estimation errors and an upper bound on the average bit error probability is evaluated for M-PSK and M-QAM signalling. It is shown via computer simulations that the derived upper bound becomes very tight with increasing signal-to-noise ratio (SNR) and the SM scheme is quite robust to channel estimation errors.
Re-Construction of Biochemical Pathways

These days construction of biochemical networks is at the core of biochemistry researches. It includes many types of analyses that can help in understanding of various chemical processes. Biopchemicalprocesses are being implemented in various applications including the production of fuels, chemicals and drugs. Hence, it is becoming an increasingly important to understand and model how they function and how they can be modified or designed to give the optimal performance. Here main focus is on the construction and analysis of biochemical networks. The construction of a reaction network is possible through reconstruction: extracting information from literature and from databases. This can be supplemented by reaction prediction methods which can identify steps which are missing from the current knowledge base. Analysis of biochemical systems generally requires some experimental input that can be used to identify important reactions and targets for increasing the performance of the organism involved. pathway and metabolic control analysis can be used to determine the limits, capabilities and potential targets for enhancement respectively.
Social-Ecological Resilience to Coastal Disasters

Social and ecological vulnerability to disasters and outcomes of any particular extreme event are influenced by buildup or erosion of resilience both before and after disasters occur. Resilient social-ecological systems incorporate diverse mechanisms for living with, and learning from, change and unexpected shocks. Disaster management requires multilevel governance systems that can enhance the capacity to cope with uncertainty and surprise by mobilizing diverse sources of resilience.
Dividend Policy and Its Impact on Stock Price – A Study on Commercial Banks Listed in Dhaka Stock Exchange

How do dividend policy decisions affect a firm’s stock price, is a widely researched topic in the field of investments and finance but still it remains a mystery that whether dividend policy affects the stock prices or not. There are those who suggest that dividend policy is irrelevant because they argue a firm’s value should be determine by the basic earning power and business risk of the firm, in which case value depends only on the income (cash) produced, not on how the income is split between dividends and retained earnings and opponents of this statement called dividend is irrelevance, that investors care only about the total returns they receive, not whether they receive those returns in the form of dividends, capital gains or both.The results of researches conducted in various stock markets are different. There are many internal and external factors, which simultaneously affect stock prices and it is almost impossible to segregate the effect of each so the variations remain. This paper empirically estimates excess stock market returns for all the thirty banks listed in Dhaka Stock Exchange for the period of 2007 to 2011. Attempts are made to examine, what kind of relationship exists between dividend policy and stock market returns of private commercial banks in Bangladesh, and to what degree the returns on stocks can be explained by their respective dividend policy for the same period of time. Various theories related to dividend policy are tested in various parts of the world with different results and findings. Various other articles are reviewed, written in Bangladesh and abroad to see the significance of dividend policy on the stock prices and to compare the results of this research with those conducted earlier. Sample size is large i.e. all the listed commercial banks of Dhaka Stock Exchange so the results are reliable and valid. Panel data approach is used to explain the relationship between dividends and stock prices after controlling the variables like Earnings per Share, Return on Equity, Retention Ratio have positive relation with Stock Prices and significantly explain the variations in the market prices of shares, while the Dividend Yield and Profit after Tax has negative, insignificant relation with stock prices. Overall results of this study indicate that Dividend Policy has significant positive effect on Stock Prices.
Integration of Automatic Generation Control and Demand Response via a Dynamic Regulation Market Mechanism

Modern power systems utilize automatic generation control (AGC) for real-time frequency regulation to ensure power balance of generation and consumption. Increasing penetration of intermittent renewables will introduce greater variability in generation, which in turn requires an even higher participation of AGC. In light of this, frequency regulation becomes a very critical service in modern power systems’ operations that has to be carried out with high economic efficiency. The use of demand response (DR) is being offered as a green, affordable alternative to conventional generation-based AGC. Although advances in wide-area monitoring and control technologies have made real-time control of DR a possibility, significant challenges remain for large-scale integration. In this paper, we propose a dynamic regulation market mechanism (DRMM) that allows both DR units and generators to bid for regulation service in real time, ensuring optimal allocation and reducing regulation service costs. Unlike similar proposals in the literature, the DRMM is practical to implement on a large power system with multiple areas. In particular, the DRMM requires modest communication rates on par with the existing AGC system and can explicitly accommodate constraints on DR energy deferment. We demonstrate the added benefit of the DRMM over the conventional AGC through simulations on a 3-area 900-bus power system and derive conditions for its stability.
Display-control compatibility: the relationship between performance and judgments of performance

This study examined whether people can judge the usability of display-control mappings. Participants identified one of two alternatives which were presented in a questionnaire. Several types of stimuli were tested, ranging from simple shapes to semantic stimuli. Choices were found to be predominately correct when usability was defined by an unambiguous spatial relationship between displays and controls. In contrast, estimates were less accurate for items which did not solely rely on spatial congruence. The findings were interpreted in terms of the factors that need to be considered for judgments to be free of error.
Age-Dependent Levels of Select Immunological Mediators in Sera of Healthy Children

ABSTRACT Serum cytokine levels were measured in 275 healthy children of different ages (3 to 17 years). Interleukin-1 receptor antagonist (IL-1RA), soluble IL-2R (sIL-2R) (sCD25), IL-6, IL-8, tumor necrosis factor alpha (TNF-α), soluble TNF receptor type II (sTNF-RII) (sCD120b), gamma interferon (IFN-γ), soluble intercellular adhesion molecule 1 (sICAM-1) (sCD54), soluble E selectin (sE-selectin) (ELAM-1; sCD62E), sCD14, and neopterin were measured with commercial test kits. The mean levels of IL-1RA, sIL-2R, TNF-α, sICAM-1, sE-selectin, and sCD14 were higher than in healthy adults. In contrast, IFN-γ and IL-8 were hardly detectable in children and thereby significantly lower than in adults. In the case of TNF-α, sICAM-1, sE selectin, and sCD14, there was a high interindividual variability, apparently unrelated to disease. The profiles of some cytokines, i.e., IL-1RA, IL-6, and TNF-α, showed age-related increases that overlapped with known patterns of physical growth. Of note, sIL-2R and sE-selectin instead declined with time. Because of the remarkable age-dependent variability in healthy pediatric subjects, disease-related changes, as well as therapy-dependent alterations, should be considered with caution.
Kahramanmaraş bölgesinde tarımı yapılan domates, hıyar ve patlıcan bitkilerinde mevcut Meloidogyne türleri

Kahramanmaras’in Andirin, Narli, Pazarcik ve Turkoglu bolgelerinden 2009-2010 yillarinda sebze alanlarindan toplam 107 toprakli bitki kok ornegi toplanmistir. Domates, patlican ve hiyar bitkilerinden elde edilen nematodlar PAGE (Poliakrilamid Jel Elektroforez) belirlenen esteraz enzim fenotipleri ve perineal (anal) kesit yontemi ile tur teshisleri yapilmistir. Orneklerde mevcut olan nematodlarin Meloidogyne incognita tek turune ait oldugu bulunmustur. Bu nematoda ait tek ve cift bantli olmak uzere iki ayri esteraz fenotipi olan I1 ve I2 belirlenmis olup, bunlarin tum ornekler icinde sirasi ile %8.5 ve 15.8 oraninda oldugu gorulmustur. Orneklenen tum Kahramanmaras bolgesindeki sebze alanlarinin yaklasik % 24’unun ilgili kok-ur nematodu ile bulasik oldugu tespit edilmistir.
The BCG world atlas: a new, open-access resource for clinicians and researchers

TB & the BCG vaccine While many in the developed world consider TB a disease of the past, it continues to claim millions of lives every year [1]. With over 9 million new cases reported annually, the global incidence of TB is falling at less than 1% per year, and the prospect of TB elimination by 2050 appears to be a difficult goal to reach [1]. There is widespread acknowledgement that TB elimination will be impossible without novel diagnostics, drugs and vaccines.
Comparison of Dispersion Formulas for Microstrip Lines

This paper presents the comparison of ten dispersion models for microstrip lines and assesses their accuracy. Accurate and simple formulas for diverse values of the microscrip line parameters for microwave circuits have been compared. This comparison is essential for computer-aided design (CAD) of microstrip lines that requires accurate and reliable information on the dispersion behavior of the microstrip.
Capacité du canal linéaire déterministe à interférences avec voies de retour bruitées

Cet article presente la caracterisation de la region de capacite du canal lineaire deterministe a interferences avec voies de retour degradees entre chaque paire emetteur-recepteur. L'apport de ce travail porte sur l'ajout de voies de retour bruitees et sur l'´ etude de scenarios asymetriques. Nous etudions quelques scenarios types et montrons que dans certains cas, l'utilisation d'une seule des voies de retour permet d'obtenir le meme gain qu'avec les deux voies. Ce gain par rapport au canal sans voie de retour est mis en evidence par l' amelioration des taux de transmission individuels et de leur somme. D'autres scenarios montrent qu'une seule voie de retour ameliore le taux individuel d'un des deux couples emetteur-recepteur seulement. Il existe enfin d'autres scenarios pour lesquels les voies de retour n'apportent aucun gain ni pour les taux individuels ni pour leur somme. Dans ces scenarios, cela montre que les regions de capacite avec et sans voie de retour sont identiques.
An Ultrasonic Sensor System for Vehicle Detection Application

This study develops an ultrasonic sensor system that can be used to determine the number, type, and speed of car vehicles passing a point over some specified time period. The proposed system consists of two ultrasonic sensors and a microcontroller equipped with data logging shield. The data were recorded and then analyzed using a computer program written in Java. Actual experiments that have been conducted indicates that this system can give a correct number of vehicles in a given interval of time.
Debating Oaxaca Archaeology. Joyce Marcus, editor. Anthropological Papers No. 84. Museum of Anthropology, University of Michigan, Ann Arbor, 1990. x + 270 pp., figures, tables, references. $18.00 (paper).

"readers" put in. Each of these readings makes a new text. Given this understanding of reading and writing, there is something almost absurd in making my reading of Reading Material Culture (or any reading) an "official" reading. The kind of reading called a review gives me more authority over Tilley (and Olsen [and Barthes]) than Barthes would ever allow himself to have over Barthes. I simply note the irony, and encourage others to experience it for themselves. A central theme in Reading Material Culture (to the extent that a complexly multivoiced book can have a "theme") is reading, and most contributors (especially Olsen-on-Barthes and Yates-on-Derrida) suggest strongly that reading is not just the process we learned in elementary school. In the first draft of this review (available from me, on request), I attempted to express my understanding of reading-as-writing in part by reproducing the marginal notes from my engagement with the book. The point of my writerly (or reviewerly) review was to demonstrate the partiality of my reading, to hint at the richness of possible reading/ writings, and to encourage other active engagements with the text. My second draft (what you are reading now) is a more traditional review, but my original point still stands: Some of the best stuff you will get out of Reading Material Culture is what you put into its margins and onto its endpapers. The value and the richness of the book is what it inspires you to put into it. What is to be gained by reading (or writing) Reading Material Culture"! A strenuous engagement with Reading Material Culture will help one to understand (to the extent that they aspire to "understandability") several of the central trends of poststructuralist thought, and in particular the application of linguistic concepts (especially the idea of "text") to the practice of archaeology. If you accept the premise that material culture can be considered a text, then archaeologists have a four-fold relationship with texts, as producers and consumers of written works and spatial configurations of material culture. This makes Reading Material Culture a very important book. If you find it ridiculous to call material culture a text, then Reading Material Culture is only an important book; after reading it, you will never think about reading and writing in the same way again. For me, that is not a bad thing. There is more to my reading, but there is no more room for my writing.
Is there a gender difference in Maths competencies achievement between Aerospace Engineering students in Spain?

The NSF has recently issued the report on “Women, Minorities, and Persons with Disabilities in Science and Engineering” which provides statistical information about the participation of these three groups in science, engineering education and employment. The percentages in Spain, and particularly in the Technical University of Valencia where almost all degrees are technologically related, are not very different even though there is a general feeling in Spanish society to consider engineering studies to be appealing and with high employability possibilities. In this paper we analyze how they perform inside the university in a highly technological degree as Aerospace Engineering. We present their results corresponding to competencies achievement in each gender group and each topic of these Mathematics subjects.
Improving potato microclone productivity by exogenous application of proline, glutamic acid and stem decapitation

Various growth regulators are used for plant stress reduction. They help to maintain the osmotic pressure required in cells and protect against increased saline concentration in the nutrition medium. The purpose of the experiment was to determine the influence of bioactive products produced from amino acids: proline amino acid (PAA) Prolis, and glutamic amino acid and potassium sulphate (GAA-K2SO4) Pompa, and stem decapitation on the formation of potato (Solanum tuberosum L.) minitubers of early cultivar ‘Goda’ and very late cultivar ‘VB Aista’ with different durat ion of plant ontogenesis. Amino acid products were used once (after potato microclone transplanting to the substrate) or twice (after microclone transplanting to the substrate and after 30 days) during the growing season. Stem decapitation was performed at growth stages BBCH 51 and 57. The influence of PAA and GAA-K2SO4 on the productivity of microclones was found to depend on the potato genotype. The minituber weight of potato late cultivar ‘VB Aista’ increased significantly (P < 0.05) after treating plants with GAA-K2SO4 once or twice during the growing season. Stem decapitation at stage BBCH 57 significantly increased the minituber weight of both cultivars and the number of minitubers of ‘VB Aista’. A strong positive correlation was established between the minituber weight and nitrogen concentration in the potato leaves at the flowering stage.
Shigella subversion of the cellular cytoskeleton: a strategy for epithelial colonization

Shigella flexneri causes diarrheal disease, including bacillary dysentery, by invading the colonic mucosa, thereby triggering an intense acute inflammatory response with mucosal ulceration and abscess formation (18, 38). In vitro experiments carried out with various epithelial cell lines have shown that invasion by shigellae is a multistep process. It consists of entry into epithelial cells by induced phagocytosis, escape from the phagocytic vacuole, multiplication and spread within the epithelial cell cytoplasm, passage into adjacent epithelial cells by way of finger-like protrusions from the cell surface, and killing of the host cells (4, 11, 12, 18, 20, 25, 26, 41, 42). Several steps in the epithelial cell invasion process, including entry, intracellular spread, and passage into adjacent cells, involve the interaction of the bacteria with the host cell cytoskeleton (4, 6, 26, 41, 42). Invasion is additionally characterized in vivo by use of the Sereny test (the capacity to produce keratoconjunctivitis in the guinea pig) (36) and by assay of experimental infection in ligated rabbit ileal loops (9). In this review, we will present what is known about the interaction of S. flexneri with the cellular cytoskeleton at the various stages of invasion.
Epidemiology of Aphasia Attributable to First Ischemic Stroke: Incidence, Severity, Fluency, Etiology, and Thrombolysis

Background and Purpose— In a geographically defined population, we assessed incidence and determinants of aphasia attributable to first-ever ischemic stroke (FEIS). Methods A 1-year prospective, population-based study among the permanent residents of the canton Basle City, Switzerland, was performed using multiple overlapping sources of information. Results— Among 188 015 inhabitants, 269 patients had FEIS, of whom 80 (30%; 95% CI, 24 to 36) had aphasia. The overall incidence rate of aphasia attributable to FEIS amounted to 43 per 100 000 inhabitants (95% CI, 33 to 52). Aphasic stroke patients were older than nonaphasic patients. The risk of aphasia attributable to FEIS increased by 4% (95% CI, 1% to 7%), and after controlling for atrial fibrillation, by 3% (95% CI, 1% to 7%) with each year of patients' age. Gender had no effect on incidence, severity, or fluency of aphasia. Cardioembolism was more frequent in aphasic stroke patients than in nonaphasic ones (odds ratio [OR], 1.85; 95% CI, 1.07 to 3.20). Aphasic patients sought medical help earlier than nonaphasic stroke patients. Still, after controlling for stroke onset–assessment interval, aphasic stroke patients were more likely to receive thrombolysis than nonaphasics (OR, 3.5; 95% CI, 1.12 to 10.96). Conclusion— Annually, 43 of 100 000 inhabitants had aphasia resulting from first ischemic stroke. Advancing age and cardioembolism were associated with an increased risk for aphasia. Severity and fluency of aphasia were not affected by demographic variables.
E-business in a B2B wholesaler's internal supply chain: effects on costs and activities

The primary aim of the paper is to indicate the effects of e-business on the costs of supply chain activities. The empirical data have been collected through a case study in a B2B wholesaler company. In order to analyse the cost effects of e-business solutions in a logistic chain, it is imperative to conduct a cost analysis across several activities. The calculation of both the total activity costs and the unit costs of activities was carried out by activity-based costing. As is quite often supposed, the results obtained indicate that the unit cost of a web-based order entry was lower than the unit costs of other sales channels. The ratio was approximately 1:6, respectively. However, order processing entails only a small part of the order's total costs. An assessment of the total cost effects of e-business requires that the cost structure of the environment be well understood.
The pain of chronic pancreatitis: a persistent clinical challenge

The pain of chronic pancreatitis represents a major challenge to those working in the field, including pain specialists, gastroenterologists and surgeons. This article describes the different aetiologies of chronic pancreatitis and lists the models for the pathogenesis of pain, including novel ideas such as the role of the immune system in the modulation of pain. The patient profile in chronic pancreatitis is discussed along with the social impact of the disease in relation to alcohol misuse. The range of treatment strategies including medical, endoscopic and surgical approaches are evaluated. Common analgesic regimes and their limitations are reviewed. The pain of chronic pancreatitis remains refractory to effective treatment in many cases and further study and understanding of the underlying pathophysiology are required.
Kinematic changes in the rheumatoid arthritic foot are related to pathologies of foot joints and tendons

In rheumatoid arthritis, pathologic changes in structures and in gait kinematics of the foot and ankle occur from onset of the disease. The aim of this study was to explore the relationship between these clinical and kinematic factors at various phases of stance. Foot and ankle kinematics of 25 subjects with RA was assessed and related to the following clinical factors: Magnetic Resonance Imaging scores of joint swelling and erosions and leg tendon involvement, as well as Joint Alignment and Motion scores. The upper and lower confidence intervals of Spearmans correlation coefficient were used to explore the relationships between clinical and kinematic parameters. Maximum first metatarsal-phalange (MTP I) dorsiflexion at pre-swing was related to reduced MTP I passive motion, MTP I synovitis and erosion, midfoot synovitis and erosion as well as hindfoot erosion. Midfoot pronation rang of motion during single-stance was related to subtalar alignment and Achilles tendon involvement. Hindfoot eversion range of motion during single-stance was related to subtalar alignment and peroneus longus tendon involvement. Involvement of the tibialis posterior tendon could not be identified as an independent factor influencing foot or ankle kinematics. In conclusion, changes in gait kinematics could be related to structural pathologies. Such findings may provide guidelines for foot and ankle therapies.