Miracle-dz/UniFAR-FTUs huggingface dataset:
Blind Interference Alignment in Two-Cell Z Interference MIMO Channel

This paper proposes a blind interference alignment (BIA) scheme in two-cell Z interference multiple-input multiple-output channel where the cell edge user equipment (UE) of the first cell is interfered by the base station of the second cell during downlink transmissions, while the UE of the second cell is free from inter-cell interference. By employing the reconfigurable antennas at receivers, the transmit strategy of the proposed scheme is designed. The achievable degree of freedom (DoF), the achievable rates, and the bit error rate performance of the proposed BIA scheme are analyzed. Simulation results show that the achievable DoF and the throughput of the proposed scheme are improved compared with conventional interference control scheme. Furthermore, in the proposed BIA scheme, all UEs can achieve a good diversity gain to combat fading.
Prenatal infections and congenital abnormalities : probable relationship

Possible relation of prenatal infections with various congenital malformations was examined in 194 cases including newborns, fetuses, and stillbirths. 92 children had various isolated congenital malformations; 38 – multiple malformations; and 64 – autosomal trisomy. Clinical data, case history and gross anatomy protocols were analyzed for all patients. Subspecialty consultation, radiological and ultrasound examinations have been applied together with routine clinical studies to all newborns. PCR-analysis was used for diagnostics of rubella virus, herpes simplex virus type 1, cytomegalovirus, Toxoplasma gondii and Chlamydia trachomatis in blood and urine samples; and in autopsy formalin-fixed-paraffin-embedded tissue samples of heart, liver, brain, spinal cord, kidneys, lungs, small intestine. Presence of infectious agents was found in 76.1 % of cases with isolated congenital malformations and in 86.1 % of multiple malformations. Rubella virus was detected in 58.6 % of children with autosomal trisomy.
A new real-time pattern selection algorithm for very low bit-rate video coding focusing on moving regions

Very low bit-rate video coding, using regular shaped patterns to focus on moving regions in macroblocks, has gained significant attention. This paper presents a new real-time pattern selection (RTPS) algorithm using a large codebook of thirty two patterns. The algorithm uses a relevance measurement for all the patterns and a moving region, to eliminate a large number of irrelevant patterns prior to the actual best likelihood pattern selection procedure. Both theoretically and empirically it is proven that not only is the computational complexity of the new algorithm comparable to the contemporary algorithm that use a pattern codebook size of only eight patterns but also the new algorithm reduces the bit-rate significantly, while maintaining comparable subjective quality.
Structure of Hermes integrations in the germline of the yellow fever mosquito, Aedes aegypti

The Hermes transposable element is derived from the house fly, Musca domestica, and can incorporate into the germline of the yellow fever mosquito, Aedes aegypti. Preliminary Southern analyses indicated that Hermes integrated along with the marker gene into the mosquito genomic DNA. Here we show that Hermes integrations are accompanied by the integration of the donor plasmid as well. In addition, breaks in the donor plasmid DNAs do not occur precisely, or at the end of the terminal inverted repeats, and are accompanied by small deletions in the plasmids. Furthermore, integrations do not cause the typical 8‐bp duplications of the target site DNA. No integrations are observed in the absence of a source of Hermes transposase. The Hermes transposase clearly did not catalyse precise cut‐and‐paste transposition in these transformed lines. It may have integrated the transposon through general recombination or through a partial replicative transposition mechanism. The imprecision of Hermes integration may result from interactions of the transposase with an endogenous hAT‐like element in the mosquito genome.
Dependence of Minimum Operating Voltage (VDDmin) on Block Size of 90-nm CMOS Ring Oscillators and its Implications in Low Power DFM

The minimum operating voltage (VDDmin) of 90-nm CMOS ring oscillators (RO's) is investigated in order to clarify the lower limit of supply voltage (VDD) for logic circuits. The measured VDDmin is determined by the intra-die threshold voltage random variations and increased from 91 mV to 224 mV when the number of RO stages increased from 11 to 1001, which hinders the VDD scaling. Lowering VDDmin is difficult, since it would require an impractical inverter-by-inverter adaptive body bias control. Therefore, the fine-grain adaptive VDD control will be more effective for the ultra low voltage logic circuits to reduce the power consumption.
Teknologi Nano untuk Pertanian: Aplikasi Hidrogel untuk Efisiensi Irigasi

ABSTRAK. Hidrofilik gel atau hidrogel adalah jaringan makromolekul yang dapat menyerap dan melepaskan air tergantung pada rangsangan eksternal, seperti pH, kelembaban, suhu, dan tekanan lingkungan sekitarnya. Tergantung pada pemilihan material dan teknik sintesisnya, hidrogel termasuk ke dalam produk teknologi nano dengan ukuran rongga permukaan antara 50-200 nm (SEM) dan luas permukaan ~300 m2/gram (BET). Aplikasi hidrogel di bidang pertanian telah terbukti mampu meningkatkan efisiensi penggunaan air, yang juga mampu menurunkan erosi. Dalam makalah ini, teknologi yang berhubungan dengan proses produksi hidrogel, seperti jenis material, aplikasi secara umum, metode sintesis, pengujian dan karakterisasi, akan ditinjau dengan pertimbangan penggunaan material yang memiliki biokompatibilitas terhadap lingkungan dan teknik sintesis dan pengujian yang sederhana dan ramah lingkungan. ABSTRACT. Hydrophilic gels or hydrogels is a macromolecular network which is able to reversibly absorb and release water, depending on the external stimuli such as: pH, temperature, humidity, and pressure of its application medium. Depending on the based material and the synthesize technique, hydrogel can be a nano product with the structural cavity size is in between 50-200 nm (SEM) and surface area of ~300 m2/gram (BET). Application of hydrogel for agriculture has been proven to increase water use efficiency, and decrease erosion dramatically. In this paper, technology related to production process of hydrogel, such as the based materials, potential application in general, the synthesize, testing and characterization methods will be reviewed, in which low cost technique and biocompatibility are to be considered.
Evaluation Of Knowledge, Attitude And Practice (KAP) About Oral Health Among Secondary Level Students Of Rural Nepal - A Questionnaire Study

Objective: The objective of this study was to assess knowledge, attitudes and practice (KAP) about oral health among the secondary level students of rural Nepal. Study Design: A total of 1000 secondary level school children (622 male, 378 female) of age group 13 to 18 years were selected for the study. Data on oral health knowledge, attitudes and practice was collected by means of 30 self-administered close ended questionnaires. Results: The result of this study show that only 35.1% of the study sample brushes their teeth at least twice daily while 64.9% reported regular brushing once daily. 66.3% of the study population was aware that gingival bleeding reflects gingivitis and only 48% knew the significance of dental plaque. Only 20% reported that they were regular dental attendees, while only 19 % of the respondent visited dentist only when they got dental pain. Majority of the study sample reported that dentist did provide proper care (99%) and explained dental procedures (76%) and preventive instructions (80%). Conclusion: Results of this study suggested that oral health related KAP among the secondary school level students of rural Nepal is poor. The findings of this study suggested that group of secondary level students would be the appropriate target group to receive the first organized intervention leading towards improving the periodontal health status and reducing prevalence of dental caries through increasing their knowledge, attitude and behavior, then followed by other groups.
Policy-based QoS management for SLA-driven adaptive routing

This paper proposes a policy-based quality of service (QoS) management framework for adaptive routing decisions. We present an approach considering interior gateway protocol (IGP) for path discovery mechanisms and QoS-aware policies for configuring the network elements. The integration of the aforementioned modules into this policy-based network management (PBNM) system is demonstrated by conducting experiments in a real environment, the hellenic public administration network SYZEFXIS. These experiments combine different traffic conditioning mechanisms through event detectors, consider IP service level agreement mechanisms that interoperate with the PBNM system and analyze the enforcement of IGP and QoS policies. Finally, validation and measurement tools are used to prove the efficiency of this framework. It is shown that this architecture offers significantly increased performance and learning capabilities, while the PBNM system achieves adaptive QoS routing through automated configuration considering the avoidance of suboptimal routing issues or under-performance conditions of the network entities.
Cuticle hydrocarbons in saline aquatic beetles

Hydrocarbons are the principal component of insect cuticle and play an important role in maintaining water balance. Cuticular impermeability could be an adaptative response to salinity and desiccation in aquatic insects; however, cuticular hydrocarbons have been poorly explored in this group and there are no previous data on saline species. We characterized cuticular hydrocarbons of adults and larvae of two saline aquatic beetles, namely Nebrioporus baeticus (Dytiscidae) and Enochrus jesusarribasi (Hydrophilidae), using a gas chromatograph coupled to a mass spectrometer. The CHC profile of adults of both species, characterized by a high abundance of branched alkanes and low of unsaturated alkenes, seems to be more similar to that of some terrestrial beetles (e.g., desert Tenebrionidae) compared with other aquatic Coleoptera (freshwater Dytiscidae). Adults of E. jesusarribasi had longer chain compounds than N. baeticus, in agreement with their higher resistance to salinity and desiccation. The more permeable cuticle of larvae was characterized by a lower diversity in compounds, shorter carbon chain length and a higher proportion of unsaturated hydrocarbons compared with that of the adults. These results suggest that osmotic stress on aquatic insects could exert a selection pressure on CHC profile similar to aridity in terrestrial species.
A comparison study of lignocellulosic–thermoplastic composites prepared from different compounding techniques

A comparison study was carried out to determine the effect of different types of compounding technique, i.e., internal mixer, twin screw extruder, and high speed mixer in the preparation of kenaf-polypropylene composite. The effect of percentage kenaf loading and particle size of kenaf (core) on the flexural properties of the composite was investigated. From the results, the incorporation of kenaf, regardless of particle size had resulted in the reduction of flexural strength of the composite. However, flexural modulus of the composites increased as the percentage of kenaf loading was increased due to the increasing of the stiffness contributed by kenaf fiber. Composites produced from internal mixer had displayed higher flexural properties as compared to those prepared from high speed mixer and twin screw extruder. It was believed that this phenomenon was attributed to the effectiveness of internal mixer with a better compounding mechanism which improved the wetting and distribution on kenaf within the polypropylene matrix. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011
Seasonal embolism and xylem vulnerability in deciduous and evergreen Mediterranean trees influenced by proximity to a carbon dioxide spring.

We investigated how proximity to natural CO(2) springs affected the seasonal patterns of xylem embolism in Quercus ilex L. , Quercus pubescens Willd. , Fraxinus ornus L. , Populus tremula L. and Arbutus unedo L. , which differ in leaf phenology and wood anatomy. Xylem embolism was evaluated in both artificially dehydrated branches and in hydrated apical branches collected at monthly intervals during a 20-month sampling period. Initial specific hydraulic conductivity was also evaluated. We found species-dependent differences in xylem hydraulic properties in response to elevated CO(2) concentration. Populus tremula was the most embolized and A. unedo was the least embolized of the species examined. Effects of elevated CO(2) were significant in Q. pubescens, P. tremula and A. unedo, whereas the overall response to elevated CO(2) was less evident in F. ornus and Q. ilex. Specific hydraulic conductivity differed among species but not between sites, although the interaction between species and site was significant. Differences in xylem vulnerability between trees growing near to the CO(2) spring and those growing in control areas were small. Although differences in hydraulic properties in response to elevated CO(2) concentration were small, they may be of great importance in determining future community composition in Mediterranean-type forest ecosystems. The possible causes and ecological significance of such differences are discussed in relation to elevated CO(2) concentration and other environmental conditions.
A Syntactic and Lexical-Based Discourse Segmenter

We present a syntactic and lexically based discourse segmenter (SLSeg) that is designed to avoid the common problem of over-segmenting text. Segmentation is the first step in a discourse parser, a system that constructs discourse trees from elementary discourse units. We compare SLSeg to a probabilistic segmenter, showing that a conservative approach increases precision at the expense of recall, while retaining a high F-score across both formal and informal texts.
Role of endotoxin in intestinal reperfusion-induced expression of E-selectin.

Products of enteric bacteria, including endotoxin [lipopolysaccharide (LPS)], have been implicated in the acute inflammatory responses elicited by ischemia and reperfusion (I/R) of the small intestine. The objective of this study was to assess the contribution of LPS to the increased E-selectin expression observed in the intestinal vasculature after I/R. The dual radiolabeled monoclonal antibody technique was used in LPS-sensitive (C3HeB/FeJ) and LPS-insensitive (C3H/HeJ) mice that were exposed to either exogenous LPS or to gut I/R (45 min ischemia, 5 h reperfusion). LPS elicited a dose-dependent (0.5-50 μg LPS/animal) increase in E-selectin expression (at 3 h) in LPS-sensitive mice, whereas LPS-insensitive mice were largely unresponsive. E-selectin expression was increased fivefold by I/R in the small bowel of both LPS-sensitive and -insensitive mice. These results indicate that, although exogenous LPS is capable of eliciting profound dose-dependent increases in E-selectin expression, endogenous LPS does not contribute significantly to I/R-induced expression of this endothelial cell adhesion molecule.
A Comparison of Finite Element and Integral Equation Formulations for the Calculation of Electrocardiographic Potentials

This paper is a comparison of the major methodologies utilized in computer simulations of electrocardiographic potential calculations. Two integral equation methods (Green's theorem and the equivalent single layer) and finite element methods are compared for forward and inverse solutions. The results suggest that the differences in accuracy between the two integral equation formulations are small. However, the use of a basic finite element formulation improves the accuracy over that obtainable with integral equations, and the improvement in accuracy is particularly notable for inverse estimation.
Price-conveyed Information versus Observed Insider Behavior: A Note on Rational Expectations Convergence

In a recent paper on behavior in experimental securities markets, Plott and Sunder ( 1982) concluded that the rational expectations (RE) model was superior to the traditional prior information (Pl) model in predicting equilibrium prices and holdings. In particular, given a market with one commodity, three possible states of the world, and three groups of trader "types," each with differing valuations on the commodity per state, initially uninformed traders were able to infer the underlying state from the current market price and act accordingly. In a related paper, Friedman, Harrison, and Salmon (1984) observed that, given the existence of a futures market, the RE model outperformed the PI model in multiperiod, single-commodity markets as well. One source of potential misinterpretation, however, comes from the fact that, although one-half of the traders of each type were informed of the true state at the beginning of each period in Plott and Sunder (1982) and one-third of the traders of each type in Friedman, Harrison, and Salmon (1984), the same traders were informed in almost every period. In a more recent paper, Plott and Sunder (1983) constructed markets where all traders received partial information (i.e., given possible states X, Y, and Z, a trader's private information would be either "not X" or "not Y" if the state were Z), yet the combinations of traders receiving a certain message in any period were determined randomly.
Effects of Postconditioning on Neurogenesis and Angiogenesis During the Recovery Phase After Focal Cerebral Ischemia

Background and Purpose— Postconditioning may be a clinically feasible way to protect the brain after a stroke. However, its effects during the recovery phase post stroke remain to be fully elucidated. Here, we examine the hypothesis that ischemic postconditioning amplifies neurogenesis and angiogenesis during stroke recovery. Methods— Male Sprague–Dawley rats were subjected to 100-minute transient middle cerebral artery occlusion (MCAO) or postconditioning (100-minute middle cerebral artery occlusion plus 10-minute reperfusion plus 10-minute reocclusion). After 2 weeks, infarct volumes, behavioral outcomes, and immunohistochemical markers of neurogenesis and angiogenesis were quantified. Results— Postconditioning significantly reduced infarction and improved neurological outcomes. Concomitantly, brains subjected to postconditioning showed an increase in doublecortin/BrdU and collagen-IV/Ki67-positive cells. Conclusions— These results suggest that therapeutic effects of postconditioning may involve the promotion of neurogenesis and angiogenic remodeling during the recovery phase after focal cerebral ischemia.
Increasing Prevalence of Overweight Among US Low-income Preschool Children: The Centers for Disease Control and Prevention Pediatric Nutrition Surveillance, 1983 to 1995

Objective. To determine whether the prevalence of overweight in preschool children has increased among the US low-income population. Design. Analysis using weight-for-height percentiles of surveillance data adjusted for age, sex, and race or ethnicity. Setting. Data from 18 states and the District of Columbia were examined. a Subjects. Low-income children <5 years of age who were included in the Centers for Disease Control and Prevention Pediatric Nutrition Surveillance System. Results. The prevalence of overweight increased from 18.6% in 1983 to 21.6% in 1995 based on the 85th percentile cutoff point for weight-for-height, and from 8.5% to 10.2% for the same period based on the 95th percentile cutoff point. Analyses by single age, sex, and race or ethnic group (non-Hispanic white, non-Hispanic black, and Hispanic) all showed increases in the prevalence of overweight, although changes are greatest for older preschool children. Conclusion. Overweight is an increasing public health problem among preschool children in the US low-income population. Additional research is needed to explore the cause of the trend observed and to find effective strategies for overweight prevention beginning in the preschool years.
Immunohistochemical Expression of p53 in Pleomorphic Adenoma and Carcinoma Ex Pleomorphic Adenoma

Context. Immunohistochemical stains for p53 are used as a diagnostic marker associated with malignancy in several histologic types of salivary gland tumors. This marker may be useful in differentiating pleomorphic adenoma (PA) from carcinoma ex pleomorphic adenoma (CPA), as these tumors are often difficult to distinguish on the basis of morphology alone. Objective. to evaluate whatever inactivation of tumor suppressor gene (p53) increases with the tumor progression from normal salivary tissue to PA and eventually CPA. Design. Paraffin blocks of 29 cases of PA, which were surrounded by normal parotid gland, and 27 cases of carcinoma ex pleomorphic adenoma were retrieved and validated. In all cases of carcinoma ex pleomorphic adenoma, a PA “ghost” was identified, and the malignant element was either undifferentiated carcinoma or adenocarcinoma. Results. The results showed negative nuclear expression of P53 in normal parotid gland. Nuclear P53 was expressed strongly in 6/29 (20.7%) pleomorphic salivary adenoma and 10/27 (37%) carcinoma ex pleomorphic adenoma. Conclusion. Our data suggest that inactivation of p53 may play an important role in the evolution of pleomorphic salivary adenoma and carcinoma ex pleomorphic adenoma.
Glucoregulation During and After Exercise in Health and Insulin-Dependent Diabetes

An elegant control system prevents hypoglycemia despite dramatic increments in glucose usage by working muscle. Insulin excess disrupts this control system, leading to hypoglycemia. Recent hypoglycemic episodes blunt the glucoregulatory response to subsequent exercise, and exercise blunts the glucoregulatory response to subsequent insulin excess. These mechanisms of glucoregulatory failure may cause hypoglycemia in insulin-dependent diabetics during and after exercise.
A framework for performance modeling of wireless sensor networks

Energy conserving design is the research focus to prolong the lifetime of sensor networks. A simple and effective way to save energy is to place nodes in sleep mode, however, sleep mode corresponds to low power consumption as well as to reduced operation capacity and increased latency. We derive a queuing model for the sensor node and performance models for the whole sensor network. We use our models to study the node and network performance metrics in terms of throughput, energy consumption and packet delivery delay. Our analytical models enable us to explore the trade-off existing between sensor sleep/active dynamics and those performance metrics. We validate our analytical results through extensive simulations and simulation results match well with our analysis and show the accuracy of our framework.