Miracle-dz/UniFAR-FTUs huggingface dataset:
On Energy Efficient Uplink Multi-User MIMO with Shared LNA Control

Implementation cost and power consumption are two important considerations in large-scale multi-antenna systems where the number of individual radio-frequency (RF) chains may be significantly larger than before. In this work, we propose to deploy a single low-noise amplifier (LNA) on the uplink multiple-input-multiple-output (MIMO) receiver to cover all antennas. This architecture, although favorable from the perspective of cost and power consumption, introduces challenges in the LNA gain control and user transmit power control. We formulate an energy efficiency maximization problem under practical system constraints, and prove that it is a constrained quasiconcave optimization problem. An efficient algorithm, Bisection – Gradient Assisted Interior Point (B-GAIP), is proposed to solve this optimization problem. The optimality and complexity of B-GAIP are analyzed, and further corroborated via numerical simulations. In particular, the performance loss due to using a shared LNA as opposed to separate LNAs in each RF chain, when using B-GAIP to determine the LNA gain and user transmit power, is very small in both centralized and distributed MIMO systems.
Miniaturized Coplanar Waveguide to Rectangular Waveguide Transition Using Inductance-Compensated Slotline

In this paper, a miniaturized coplanar waveguide (CPW) to rectangular waveguide transition using an inductance-compensated slotline is proposed. The proposed transition has 38.06% 15-dB fractional bandwidth, which almost covers the whole X-band (8.2-12.4 GHz). As compared with the CPW to rectangular waveguide transition, which uses the quarter-wavelength slotline, our design has 18% reduction in the transition size, with only 2.72% reduction in the 15-dB fractional bandwidth as a tradeoff. In order to verify our design, we fabricate and measure back-to-back CPW to rectangular waveguide transitions of which the measurement results are in good agreement with the simulation results.
Predictors of Non-Response to a Questionnaire Survey of a Volunteer Twin Panel: Findings from the Australian 1989 Twin Cohort

Abstract Questionnaire surveys, while more economical, typically achieve poorer response rates than interview surveys. We used data from a national volunteer cohort of young adult twins, who were scheduled for assessment by questionnaire in 1989 and by interview in 1996-2000, to identify predictors of questionnaire non-response. Out of a total of 8536 twins, 5058 completed the questionnaire survey (59% response rate), and 6255 completed a telephone interview survey conducted a decade later (73% response rate). Multinomial logit models were fitted to the interview data to identify socioeconomic, psychiatric and health behavior correlates of non-response in the earlier questionnaire survey. Male gender, education below University level, and being a dizygotic rather than monozygotic twin, all predicted reduced likelihood of participating in the questionnaire survey. Associations between questionnaire response status and psychiatric history and health behavior variables were modest, with history of alcohol dependence and childhood conduct disorder predicting decreased probability of returning a questionnaire, and history of smoking and heavy drinking more weakly associated with non-response. Body-mass index showed no association with questionnaire non-response. Despite a poor response rate to the self-report questionnaire survey, we found only limited sampling biases for most variables. While not appropriate for studies where socioeconomic variables are critical, it appears that survey by questionnaire, with questionnaire administration by telephone to non-responders, will represent a viable strategy for gene-mapping studies requiring that large numbers of relatives be screened.
Une famille de classes polynomiales de CSP bas ée sur la microstructure

L’etude des classes polynomiales constitue une question importante en intelligence artificielle, en particulier au niveau des problemes de satisfaction de contraintes. Dans ce contexte, la propriete BTP fournit une classe importante de l’etat de l’art. Dans cet article, nous proposons d’etendre et de generaliser cette classe en introduisant la propriete k-BTP (et la classe des instances satisfaisant cette propriete) ou le parametre k est une constante donnee. Ainsi, nous avons 2-BTP = BTP, et pour k > 2, k-BTP est une relaxation de BTP au sens ou k-BTP ( (k + 1)-BTP. En outre, nous montrons que si k-TW est la classe d’instances ayant une largeur arborescente bornee par une constante k, alors k-TW ((k+1)-BTP. Au niveau de la complexite, nous montrons que les instances satisfaisant k-BTP et qui verifient la k-coherence-forte sont reconnaissables et resolubles en temps polynomial. Nous etudions aussi la relation entre k-BTP et l’approche de W. Naanaa qui a propose un outil theorique connu sous le vocable directional rank afin d’´etendre les classes polynomiales de maniere parametree. Enfin, nous proposons une etude experimentale de 3-BTP qui montre l’interet pratique de cette classe.
Reliable Nonvolatile Memories: Techniques and Measures

<italic>Editor’s note:</italic> Reliability continues to be a severe challenge in the development of emerging memories. In this article, the authors offer a comprehensive survey of reliability enhancement techniques for three mainstream emerging memories and a summary of the possible future research directions in this area. <italic>—Yiran Chen, Duke University</italic>
Determination of Contact Forces for Two Manipulators Mutually Lifting a Rigid Object Using A Technique of Dynamic Load Distribution

ABSTRACTThis article presents a new technique and approach for dynamically distributing the payload when two serial link manipulators mutually hold and transport a rigid object. A new vector variable which parameterizes the internal stress contact force and torque degrees of freedom (DOF) is introduced and defined as a linear function of the contact forces. ” When this equation is combined with the object's dynamical equations, the resulting system yields a well specified solution for the contact forces as a function of the internal stress DOF parameterizing variable. The article investigates two different approaches to selecting the matrix which transforms the contact forces to obtain the internal force parameterizing variable. In one approach the matrix is selected to be orthogonal to the transformation matrix in the object's dynamical equations and in the other it is a function of two constrained scalar parameters which govern the distribution of the payload between the object motion inducing components.
Meniscus Tears in Children

Increased athletic participation by the skeletally immature athlete and a heightened suspicion by physicians have contributed to an increase in the incidence of meniscal injuries in children and adolescents. In young patient, meniscal injury could have long-term consequences, so an understanding of recognition and treatment is essential. We review the anatomy and development of the menisci, review classification and diagnosis of meniscal tears, discuss management options and outcomes of treatment, and focus on discoid lateral meniscus and meniscal cysts.
Mathematical linearity of circulatory transport.

After injections of indocyanine green into the pulmonary artery or left ventricle of anesthetized dogs, indicator-dilution curves were recorded, via identical short sampling systems, from the root of the aorta, the lower thoracic aorta, and the bifurcation of the aorta. The distributions of transit times (transport functions) between each of the three pairs of sampling sites were determined in terms of a mathematical model using the whole of each recorded curve. The accuracy of each transport function was demonstrated by convoluting it with the upstream dilution curve to produce a theoretical downstream dilution curve closely matching the recorded downstream dilution curve. Linearity and stationarity of the aortic system were then tested by comparing the convolution of the transport functions of the upper and lower segments of the aorta with the transport function from aortic root to bifurcation. The results indicate that it is reasonable to apply the superposition principle, as is assumed when calculating flows or mean transit times by indicator-dilution methods, and that cardiac fluctuations in flow produce relatively little error.
Comparison of two methods for quantitative assessment of mandibular asymmetry using cone beam computed tomography image volumes.

OBJECTIVES The aim of this study was to compare two methods of measuring mandibular asymmetry. The first method uses mirroring of the mandible in the midsagittal plane; the second uses mirroring of the mandible and registration on the cranial base. METHODS Surface models were constructed from cone beam CT (CBCT) scans of 50 patients with asymmetry. For the first approach, a midsagittal plane was defined for each patient as the plane passing through nasion, anterior nasal spine and basion. Mirrors for both halves of the mandible were created. The second approach consisted of mirroring the image volume by flipping the left and right sides and then registering the mirrored image onto the cranial base using a mutual information maximization method. Surface distances between hemimandibles and mirrors were calculated for nine regions. RESULTS There was no statistically significant difference between the mean surface distance measurements obtained with the two approaches and when comparing both halves in most areas. CONCLUSION Both mirroring techniques provided similar quantification of mandibular asymmetry in this cohort.
Semantic and phonological processing in illiteracy

Researchers of cognitive processing in illiteracy have proposed that the acquisition of literacy modifies the functional organization of the brain. They have suggested that, while illiterate individuals have access only to innate semantic processing skills, those who have learned the correspondence between graphemes and phonemes have several mechanisms available to them through which to process oral language. We conducted 2 experiments to verify that suggestion with respect to language processing, and to elucidate further the differences between literate and illiterate individuals in the cognitive strategies used to process oral language, as well as hemispheric specialization for these processes. Our findings suggest that semantic processing strategies are qualitatively the same in literates and illiterates, despite the fact that overall performance is augmented by increased education. In contrast, explicit processing of oral information based on phonological characteristics appears to be qualitatively different between literates and illiterates: effective strategies in the processing of phonological information depend upon having had a formal education, regardless of the level of education. We also confirmed the differential abilities needed for the processing of semantic and phonological information and related them to hemisphere-specific processing. (JINS, 2004, 10, 818–827.)
Simplified NAL decoder for H.264/AVC baseline profile

In this paper, we propose the efficient NAL (Network Abstraction Layer) decoder for H.264/AVC baseline profile which is specified for mobile telecommunication. Therefore, we can simplify NAL decoder for baseline profile. Many parameters and complex algorithms are fixed or removed in baseline profile. This optimization approach can be defined by target based NAL decoder implementation. We discuss about this target based NAL decoder and implementation especially in H.264/AVC baseline profile.
The University of Birmingham (Live System) Signal Reduction due to Radome Contamination in Low-THz Automotive Radar

This paper investigates signal reduction due to contamination of low-THz radar radomes for outdoor applications. A measurement methodology is proposed to characterise the effect of different obscurants on electromagnetic wave propagation. This is achieved by measuring the ratio of two signals: one reflected from the reference target through the contaminated radome and another through the radome without the contaminant. The presence of water content in propagation media is the main cause of performance deterioration of sensors in rainy, snowy and foggy weather. Therefore, the reflectivity and transmissivity of water films on the radome has been measured and analysed at 150 and 300 GHz and measurement results are presented. The measured results are compared to a theoretical model and good agreement has been established. The results show strong correlation between signal reduction and uniform layer of water thickness. Keywords—Low-THz; Fresnel theory; reflection; transmition;
Area-Efficient Microarchitecture for Reinforcement of Turbo Mode

SUMMARY Turbo mode, which accelerates many applications without major change of existing systems, is widely used in commercial processors. Since time duration or powerfulness of turbo mode depends on peak temperature of a processor chip, reducing the peak temperature can reinforce turbo mode. This paper presents that adding small amount of hardware allows microprocessors to reduce the peak temperature drastically and then to reinforce turbo mode successfully. Our approach is to ﬁnd out a few small units that become heat sources in a processor and to appropriately duplicate them for reduction of their power density. By duplicating the limited units and using the copies evenly, the processor can show signiﬁcant performance improvement while achieving area-e ﬃ ciency. The experimental result shows that the proposed method achieves up to 14.5% of performance improvement in exchange for 2.8% of area increase.
Feature Learning and Automatic Segmentation for Dolphin Communication Analysis

The study of dolphin cognition involves intensive research of animal vocalizations recorded in the field. We address the automated analysis of audible dolphin communication and propose a system that automatically discovers patterns in dolphin signals. These patterns are invariant to frequency shifts and time warping transformations. The discovery algorithm is based on feature learning and unsupervised time series segmentation using hidden Markov models. Researchers can inspect the patterns visually and interactively run comparative statistics between the distribution of dolphin signals in different behavioral contexts. Our results indicate that our system provides meaningful patterns to the marine biologist and that the comparative statistics are aligned with the biologists domain knowledge.
The developing family: how is it doing with nurturing young children?

Every time I visit a culture or country different from my own I gain a new perspective on families and children. One theme I have observed in Asian cultures is the caregiving of the infant and young child by other family members. In China the maternal grandmother cares for the new baby as well as for the young parents; often the families live together. In Taiwan it is customary for the paternal grandmother to help with the newborn. In France there is a well-developed system of day nurseries supported by the government. In both Canada and the United States it has been customary for parents to do the caregiving of infants and toddlers. I therefore find it interesting to read studies about the mother's perceptions of her experience both working and mothering. I detect a shift in our two countries as the care of young children becomes less exclusively the responsibility of parents. David Hamburg made the assertion, while President of the Carnegie Foundation in the 1980s, that the United States is experiencing an epidemic of parental disengagement. He suggested that post-industrial society has found a non-adaptive solution for child care, expecting the family to bear full responsibility; the society, including government and private corporations, has not assumed its share of responsibility in helping families care for children, while at the same time it has created work demands on the family for regulating the economy. In the United States over 60% of women are back in the work force by the time their infant is 1 year of age. As a society we are removing caregiving as a priority from the family agenda by employing the parents, yet government/business provides little assistance for the care of children. This is an issue that must be addressed by both scholars in human development and policy makers in human service delivery.
SCREENING OF INDIGENOUS MEDICINAL PLANTS FOR ANTIFERTILITY POTENTIALITY

The postcoital antifertility activity of petroleum ether and benzene extracts of Leucas aspera (whole plant) Mentha arvensis (whole plant) Salvia officinalis (leaves) Ricinnus communis (seeds) Jatropha glandul ifera (seeds) Butea monosperma (seeds) and Hibiscus rosa sinensis (flowers) was studied in female albino rats. Only the benzene extract of Hibiscus rosa sinensis flowers was effective in preventing pregnancy (83.7%).
An examination of phonological awareness treatment outcomes for seventh-grade poor readers from a bilingual community.

PURPOSE The goal of this study was to examine posttreatment outcomes following direct, systematic phonological awareness instruction for seventh-grade poor readers, most of whom had English as their second language. METHOD The treatment group (n = 35) participated in small-group instruction sessions that emphasized phonological awareness at the phoneme level and incorporated explicit linkages to literacy. The treatment, which was administered in the participants' school setting over a 12-week period, involved approximately 45 hr of contact with a trained instructor. Postintervention performance of the treatment group was compared to performance of students from the same school and grade level who were waiting to receive phonological awareness treatment (nontreatment group, n= 33). RESULTS ANCOVA results for total reading scores and MANCOVA results for Phonological Awarenes, Word Attack, Word Identification, Word Comprehension, and Passage Comprehension subtests indicated that group differences were significant. The posttreatment scores of the treatment group were higher for all measures. CLINICAL IMPLICATIONS Seventh-grade poor readers, including bilingual students who have English as their second language, can benefit from direct, systematic instruction that emphasizes phonological awareness and is linked to literacy.
High-quality rice RNA-seq-based co-expression network for predicting gene function and regulation

Inferring the genome-scale gene co-expression network is important for understanding genetic architecture underlying the complex and various biological phenotypes. The recent availability of large-scale RNA-seq sequencing-data provides great potential for co-expression network inference. In this study, for the first time, we presented a novel heterogeneous ensemble pipeline integrating three frequently used inference methods, to build a high-quality RNA-seq-based Gene Co-expression Network (GCN) in rice, an important monocot species. The quality of the network obtained by our proposed method was first evaluated and verified with the curated positive and negative gene functional link datasets, which obviously outperformed each single method. Secondly, the powerful capability of this network for associating unknown genes with biological functions and agronomic traits was showed by enrichment analysis and case studies. Particularly, we demonstrated the potential applications of our proposed method to predict the biological roles of long non-coding RNA (lncRNA) and circular RNA (circRNA) genes. Our results provided a valuable data source for selecting candidate genes to further experimental validation during rice genetics research and breeding. To enhance identification of novel genes regulating important biological processes and agronomic traits in rice and other crop species, we released the source code of constructing high-quality RNA-seq-based GCN and rice RNA-seq-based GCN, which can be freely downloaded online at https://github.com/czllab/NetMiner.
Prognostic Value of Negative Lymph Nodes (NLN) in Rectal Adenocarcinoma

We studied the impact on prognosis by negative LN (NLN) harvest count on rectal cancer patients, using immunohistochemistry to exclude micrometastasis in nodes negative by hematoxylin and eosin (H & E) stain. A prospective study including 114 patients in Mansoura university hospitals between 2005-2008 aged 18 years or older who were diagnosed as having localized invasive adenocarcinoma rectum with stage I, II & III was conducted. Close follow up done in both surgery department and department of clinical oncology and nuclear medicine for 5 years. We examined patient survival in relation to the negative lymph node count. Our results revealed that the number of negative lymph nodes could affect significantly survival curves where the disease free survival and overall survival were significantly better among the group of patients with more than ten negative LNs (P=0.021 & 0.012 respectively). In conclusion, the negative lymph node count is associated with improved survival of rectal cancer patients.
-thalassemia, HbS, and -globin gene cluster haplotypes in two Afro-Uruguayan sub-populations from northern and southern Uruguay

Hemoglobinopathies are the most common monogenic disorders worldwide; however, they have never been systematically studied from a genetic perspective in Uruguay. In this study, we determined the frequencies of hemoglobin variants in Afro-Uruguayans. A sample of 52 healthy unrelated Afro-Uruguayans from the northern (N = 28) and southern (N = 24) regions of the country was analyzed. Eight individuals (15.4%) were heterozygous for 3,7 thalassemia; seven of them (29.2%) were originally from the southern region, whereas one of them (3.6%) was from the northern region; the differences between both regions were statistically significant (p = 0.016 +/-0.003). The only structural mutation detected was S , which is typical of African populations. Four individuals (10%) were heterozy
Effects of quantization on Golay sequence based channel estimation

In this paper we investigate a widely adapted complementary Golay sequences which are used for channel estimation in digital data transmission systems. The performance of the Golay correlator based and the fast Fourier transform based channel estimation methods are evaluated. The effects of quantization on the estimation of the channel impulse response is compared through simulations.
A secure K-automorphism privacy preserving approach with high data utility in social networks

The prevalence of social networks has raised the concern for individual privacy leakage. Although preserving user privacy in social networks has been studied extensively, there is still a lot of room for improvement in the state of the art techniques. For example, the recently proposed K-automorphism model can prevent node identity attack by constructing a K-automorphism graph; however, it ignores preserving the privacy of the edges, resulting in path length leakage and edge leakage in the anonymous graph. Another example is the K-isomorphism model, which was proposed to improve the K-automorphism model by transforming the graph of social networks into K disjoined isomorphic subgraphs. However, it cuts off the connection among subgraphs, which impairs the data utility of the released anonymous graph. In this paper, we design a secure and high utility privacy preserving model, called AK-secure, to prevent node identity attack, path length leakage, and edge leakage effectively. On the basis of the AK-secure privacy preserving model, we propose a graph anonymous algorithm, which constructs an anonymous graph satisfying the AK-secure privacy preserving model, minimizing information loss and guaranteeing high data utility. Extensive experiments on real data sets show the security, effectiveness of our AK-secure privacy preserving model and the high data utility of the released anonymous graph. Copyright © 2013 John Wiley & Sons, Ltd.