Miracle-dz/UniFAR-FTUs huggingface dataset:
Professional Master's degree in Nursing: knowledge production and challenges

Objective to analyze the production of knowledge resulting from the professional master's degree programs in Nursing and to reflect about their perspectives for the area. Method descriptive and analytical study. Data collected from the dissertations of three educational institutions that graduated students in programs of professional master's degree in Nursing between 2006 and 2012 were included. Results most of the 127 course completion studies analyzed were developed within hospital contexts; there was a focus on the organizational and healthcare areas, in the research fields care process and management, and predominance of qualitative studies. There are various products resulting from the course completion studies: evaluation of services/healthcare programs and development of processes, care or educational protocols. Conclusion the programs of professional master's degree in Nursing, which are undergoing a consolidation stage, have recent production under development and there is a gap in the creation of hard technologies and innovation. They are essential for the development of innovative professional practices that articulate the healthcare and educational areas.
Does additional information always reduce anonymity?

We discuss information-theoretic anonymity metrics, that use entropy over the distribution of all possible recipients to quantify anonymity. We identify a common misconception: the entropy of the distribution describing the potentialreceivers does not always decrease given more information.We show the relation of these a-posteriori distributions with the Shannon conditional entropy, which is an average overall possible observations.
Effect of Biochar Application on the Efficacy of the Nitrification Inhibitor Dicyandiamide in Soils

A series of laboratory incubation experiments was conducted to evaluate the effect of biochar application on the efficacy of the nitrification inhibitor (NI) dicyandiamide (DCD) in Cambisol (pH 7.14) and Latosol (pH 4.83). The feedstocks (eucalyptus wood, coconut coir, and rice straw), pyrolysis temperatures (350, 500, and 650 ˚C), and application rates (0.5, 1.0, 2.5, and 5.0% of 200 g soil) were identified as influential factors. The results showed that biochar could significantly reduce the effectiveness of DCD on nitrification inhibition. Biochar produced from eucalyptus wood with a large surface area (426.4 m2 g−1) had the strongest ability to reduce the inhibitory effect of DCD in nearly neutral Cambisol, while biochar from rice straw with a high pH had the greatest influence on acidic Latosol. Increasing pyrolysis temperature and application rates can strengthen the ability of biochar to reduce the inhibitory effect of DCD. Generally, the decrease of the DCD nitrification inhibitory effect on nearly neutral soil was controlled by the surface area of the applied biochar; meanwhile, the rise of soil pH caused by biochar application was also an important influencing factor in acid soil.
Asymptotically Optimal Beamforming for Video Streaming in Multi-Antenna Interference Networks

In this paper, we consider queue-aware beamforming control for video streaming applications in multi-antenna interference network. Using heavy traffic approximation technique, we first derive the diffusion limit for the discrete time queuing system. Based on the diffusion limit, we formulate an infinite horizon ergodic control problem to minimize the average power costs of the base stations subject to the constraints on the playback interruption costs and buffer overflow costs of the mobile users. To deal with the queue coupling challenge, we utilize the weak interference coupling property in the network to derive a closed-form approximate value function of the optimality equation as well as the associated error bound using perturbation analysis. Based on the closed-form approximate value function, we propose a low complexity queue-aware beamforming control algorithm, which is asymptotically optimal for sufficiently small cross-channel path gain. Finally, the proposed scheme is compared with various baselines through simulations and it is shown that significant performance gain can be achieved.
Algebraic Speci cation of DocumentsJos

It is becoming normal that a document should serve several purposes. However, the majority of available text processors is purpose-oriented, reducing the necessary exibility and reusability of documents. Some waste of time arises from adapting the same text to each diierent purpose, when this task could be done automatically (from the rst version of the document) with an appropriate system. This communication highlights the guidelines to build a system to solve the above problem. Such a system should be an algebraic based environment and provide facilities for: Document type deenitions; Deenition of Function over document types; Document deenitions as algebraic terms. This approach (rooted in the tradition of constructive algebraic speciication models), will allow for an homogeneous environment to deal with operations such as merging documents, converting formats, translating documents, extracting diierent kinds of information (to set up information repositories, data bases, or semantic networks) or portions of documents (as it happens, for instance, in literate programming), and some other actions, not so traditional like mail reply, or memo production. We intend to use Camila (a speciication language and prototyping environment developed at Universidade do Minho, by the Computer Science group) to develop the above mentioned system.
Wear mechanisms of glass-infiltrated alumina sliding against alumina in water

Glass-infiltrated alumina is now commonly used as a core material in dental restorations. If the veneer layer, which covers the core, is broken or damaged through use, a direct contact between the core and the opposing restorative material or human enamel can occur. The wear behavior in simulated contacts with human enamel has already been studied. In the present work, we have investigated the wear mechanisms of glass-infiltrated alumina in contact with a high-purity alumina as an opposing ceramic restoration. Wear tests were performed in a pin-on-disk tribometer under conditions that roughly resemble those in the oral environment. The wear rates of the alumina balls and the glass-infiltrated disks sliding in water increased linearly with load. No wear transition (i.e., a sudden increase in wear) was observed as either the load or the sliding distance was increased. Examination of the wear debris in the SEM suggested the presence of wear particles that are often attributed to the formation of hydrated aluminum oxide through tribochemical reactions between water and alumina. While tribochemical wear was the dominating wear mechanism for the alumina balls, microfracture and delamination governed the wear behavior of the glass-infiltrated alumina disks. Examination of the surface layers formed on the disk wear tracks confirmed the presence of amorphous hydrated alumina on the wear track. It is suggested that these reaction products smear on the wear track filling the pores produced by microfracture and delamination. The high wear resistance of glass-infiltrated alumina is attributed to the presence of hydrated alumina in the third body layer that accommodates the interfacial shear stresses and the high strength due to strong bonding between the glass phase and alumina grains. Based on the observed wear resistance of glass-infiltrated alumina in the present study, this material should be evaluated for applications in addition to dental restorations.
The Use of Wet Cupping for Persistent Nonspecific Low Back Pain: Randomized Controlled Clinical Trial

Abstract Objectives: To evaluate the effectiveness and safety of wet cupping therapy as a single treatment for persistent nonspecific low back pain (PNSLBP). Design: Randomized controlled trial comparing wet cupping versus no treatment in PNSLBP. Setting: Outpatient clinic in three secondary care hospitals in Saudi Arabia. Patients: Eighty eligible participants with PNSLBP for at least 3 months were randomly allocated to an intervention group (n=40) or to a control group (n=40). Interventions: Six wet cupping sessions within 2 weeks, each of which were done at two bladder meridian (BL) acupuncture points among BL23, BL24, and BL25. Only acetaminophen was allowed as a rescue treatment in both groups. Outcome measures: The Numeric Rating Scale (NRS), McGill Present Pain Intensity (PPI), and Oswestry Disability Questionnaire (ODQ) were used as outcome measures. Numbers of acetaminophen tablets taken were compared at 4 weeks from baseline. Adverse events were recorded. Results: At the end of the intervention, statistically significant differences in the three outcome measures favoring the wet cupping group compared with the control group were seen: NRS score, 29.2 (95% confidence interval [CI], 24.6–33.8) versus 57.9 (95% CI, 53.3–62.6), respectively; PPI score, 1.17 (95% CI, 0.96–1.4) versus 2.3 (95% CI, 2.1– 2.7); and ODQ score, 19.6 (95% CI, 16.5–22.7) versus 35.4 (95% CI, 32.3–38.5) (p=0.0001). This improvement continued for another 2 weeks after the end of the intervention. Acetaminophen was used less in the wet cupping group, but this difference was not statistically significant. No adverse events were reported. Conclusions: Wet cupping is potentially effective in reducing pain and improving disability associated with PNSLBP at least for 2 weeks after the end of the wet cupping period. Placebo-controlled trials are needed.
Compartmentation of folate‐mediated one‐carbon metabolism in eukaryotes

Folate coenzymes supply the activated one‐carbon units required in nucleic acid biosynthesis, mitochondrial and chloroplast protein biosynthesis, amino acid metabolism, methyl group biogenesis, and vitamin metabolism. Because of its central role in purine and thymidylate biosynthesis, folate‐mediated one‐carbon metabolism has been the target of many anticancer drug therapies. This review is a summary of recent results that suggest that folate‐mediated one‐carbon metabolism is highly compartmentalized in eukaryotic cells. Evidence exists for compartmentation of folate coenzymes and their one‐carbon units between intracellular organelles, for substrate channeling of folate coenzymes, and for compartmentation by intracellular folate‐binding proteins. Metabolic, regulatory, and therapeutic implications of these processes are discussed. —Appling, D. R. Compartmentation of folate‐mediated one‐carbon metabolism in eukaryotes. FASEB J. 5: 2645‐2651; 1991.
Recent advances in speech recognition system for IBM DARPA communicator

In this paper, we present methods to improve speech recognition performance of the IBM DARPA Communicator system. Our efforts for acoustic modeling include training a domain specific yet broad acoustic model, speaker clustering and speaker adaptation using feature space transforms. For language modeling, we achieved improvements by using compound words, carefully designed LM classes and adjusting the within class probabilities, using NLU state information to enhance the language model and building a language model with embedded grammar objects. Our efforts produced a relative error rate reduction of 34.6% on the test set that consists of 1173 utterances that IBM received during the NIST evaluation of the DARPA Communicator systems in June 2000. We also tested our decoding on the data from some other sites to further demonstrate the robustness of the system improvements.
Wireless networks security: Proof of chopchop attack

An encryption protocol is the first line of defense against network attacks. The wired equivalent privacy (WEP), used to secure 802.11 based networks, suffers from many weaknesses that were exploited in order to compromise the security of the network, data confidentiality and integrity. An attack named chopchop can decrypt the content of a frame without knowing the encryption key. There has been no theoretical proof of the functionality of the attack. In this paper, we will give a review of the attack and build a mathematical model to prove theoretically that the attack is capable of decrypting messages in WEP enabled wireless networks without requiring the knowledge of the encryption key.
Atbf1 Regulates Pubertal Mammary Gland Development Likely by Inhibiting the Pro-Proliferative Function of Estrogen-ER Signaling

ATBF1 is a candidate tumor suppressor that interacts with estrogen receptor (ER) to inhibit the function of estrogen-ER signaling in gene regulation and cell proliferation control in human breast cancer cells. We therefore tested whether Atbf1 and its interaction with ER modulate the development of pubertal mammary gland, where estrogen is the predominant steroid hormone. In an in vitro model of cell differentiation, i.e., MCF10A cells cultured in Matrigel, ATBF1 expression was significantly increased, and knockdown of ATBF1 inhibited acinus formation. During mouse mammary gland development, Atbf1 was expressed at varying levels at different stages, with higher levels during puberty, lower during pregnancy, and the highest during lactation. Knockout of Atbf1 at the onset of puberty enhanced ductal elongation and bifurcation and promoted cell proliferation in both ducts and terminal end buds of pubertal mammary glands. Enhanced cell proliferation primarily occurred in ER-positive cells and was accompanied by increased expression of ER target genes. Furthermore, inactivation of Atbf1 reduced the expression of basal cell markers (CK5, CK14 and CD44) but not luminal cell markers. These findings indicate that Atbf1 plays a role in the development of pubertal mammary gland likely by modulating the function of estrogen-ER signaling in luminal cells and by modulating gene expression in basal cells.
Impact of inductive integrated voltage regulator on the power attack vulnerability of encryption engines: A simulation study

This paper shows that inductive integrated voltage regulators (IVR) provide significant immunity to traditional power attacks on crypto encryption engines based on time-domain analysis of the chip current. Frequency-domain analyses of envelope and duty cycle of the current are identified as new attack modes. The security-aware IVR design is discussed to provide additional immunity to power attack.
Semantic Web Modeling and Programming with XDD

XML Declarative Description (XDD) is a unified modeling language with well-defined declarative semantics. It employs XML as its bare syntax and enhances XML expressive power by provision of mechanisms for succinct and uniform expression of Semantic Web contents, rules, conditional relationships, integrity constraints and ontological axioms. Semantic Web applications, offering certain Web services and comprising the three basic modeling components: application data, application rules and logic, and users' queries and service requests, are represented in XDD language as XDD descriptions. By integration of XDD language, Equivalent Transformation computational paradigm and XML syntax, XML Equivalent Transformation (XET)--a declarative programming language for computation of XDD descriptions in Equivalent Transformation computational paradigm--is developed. By means of XDD and XET languages, a new declarative approach to the development and the execution of Semantic Web applications is constructed.
CALU: A Communication Optimal LU Factorization Algorithm

Since the cost of communication (moving data) greatly exceeds the cost of doing arithmetic on current and future computing platforms, we are motivated to devise algorithms that communicate as little as possible, even if they do slightly more arithmetic, and as long as they still get the right answer. This paper is about getting the right answer for such an algorithm. It discusses CALU, a communication avoiding LU factorization algorithm based on a new pivoting strategy, that we refer to as tournament pivoting. The reason to consider CALU is that it does an optimal amount of communication, and asymptotically less than Gaussian elimination with partial pivoting (GEPP), and so will be much faster on platforms where communication is expensive, as shown in previous work. We show that the Schur complement obtained after each step of performing CALU on a matrix $A$ is the same as the Schur complement obtained after performing GEPP on a larger matrix whose entries are the same as the entries of $A$ (sometimes slightly perturbed) and zeros. More generally, the entire CALU process is equivalent to GEPP on a large, but very sparse matrix, formed by entries of $A$ and zeros. Hence we expect that CALU will behave as GEPP and it will also be very stable in practice. In addition, extensive experiments on random matrices and a set of special matrices show that CALU is stable in practice. The upper bound on the growth factor of CALU is worse than that of GEPP. However, there are Wilkinson-like matrices for which GEPP has exponential growth factor, but not CALU, and vice-versa.
Induced lateral electric field (ILEF) DC digital microfluidics

This paper reports a low voltage DC digital microfluidics device working in air filler by inducing lateral electric field (ILEF), which enables manipulation of various positively charged and negatively charged polar solutions for biomedical applications in an oil-free digital microfluidic platform while using cheap DC electric power source. Sensitivity of threshold voltage (minimum required voltage for droplet motion) to the polarity of actuation potential and the polarity of droplet solution is also reported for the first time in this paper, by actuating droplets of positive and negative polarity with initial contact angle 85°< θ° < 110°.
Intrinsic authentication of multimedia objects using biometric data manipulation

T he BiometricGaussianStream (BGS) cryptosystem was extended by extensive research experimentation. Using this system, complexity is added to an image by passing it through a Gaussian noise function. This function is applied with specific parameters for the mean and variance, which also works as a parallel key. To implement a stream cipher (BGS) with help of biometric images, the Initial Condition (IC) for (Linear Feed Back Shift Register) LFSR from is extracted iriscode. A comparison between various stream ciphers is also made to measure the strength of the BGS cryptosystem. The previous experimentation work has been extended by formulating the algorithmic runtime complexity of the BGS Cryptosystem which proves to be O (n) algorithmically. New techniques to encrypt and assess multimedia objects have been introduced.
A Novel Computational Model for Non-Linear Divisible Loads on a Linear Network

This work investigates the problem of a non-linear divisible load distribution on a homogeneous linear network. A novel computational model of non-linear loads that includes complete steps for processing them, is proposed. This model solves the problem of the classical model, whose performance degrades by separating the load. This work also presents an algorithm S (Single-installment) that uses single-installment processing to distribute a non-linear divisible load on a homogeneous linear network. An algorithm M (Multi-installment) that applies multi-installment processing to reduce the initial distribution time for load is also proposed. Closed-form expressions for the parallel processing time and speed-up of the proposed algorithms are derived. The speed-up of algorithm S is much better than that of the classical algorithm that is based on the classical model. Algorithm M outperforms algorithm S in terms of speed-up when the load to be processed is very large or when the start-up costs are small.
Human Nucleoporins Promote HIV-1 Docking at the Nuclear Pore, Nuclear Import and Integration

The nuclear pore complex (NPC) mediates nucleo-cytoplasmic transport of macromolecules and is an obligatory point of passage and functional bottleneck in the replication of some viruses. The Human Immunodeficiency Virus (HIV) has evolved the required mechanisms for active nuclear import of its genome through the NPC. However the mechanisms by which the NPC allows or even assists HIV translocation are still unknown. We investigated the involvement of four key nucleoporins in HIV-1 docking, translocation, and integration: Nup358/RanBP2, Nup214/CAN, Nup98 and Nup153. Although all induce defects in infectivity when depleted, only Nup153 actually showed any evidence of participating in HIV-1 translocation through the nuclear pore. We show that Nup358/RanBP2 mediates docking of HIV-1 cores on NPC cytoplasmic filaments by interacting with the cores and that the C-terminus of Nup358/RanBP2 comprising a cyclophilin-homology domain contributes to binding. We also show that Nup214/CAN and Nup98 play no role in HIV-1 nuclear import per se: Nup214/CAN plays an indirect role in infectivity read-outs through its effect on mRNA export, while the reduction of expression of Nup98 shows a slight reduction in proviral integration. Our work shows the involvement of nucleoporins in diverse and functionally separable steps of HIV infection and nuclear import.
Effects of estrogen on functional and neurological recovery after spinal cord injury: An experimental study with rats

OBJECTIVES: To evaluate the functional and histological effects of estrogen as a neuroprotective agent after a standard experimentally induced spinal cord lesion. METHODS: In this experimental study, 20 male Wistar rats were divided into two groups: one group with rats undergoing spinal cord injury (SCI) at T10 and receiving estrogen therapy with 17-beta estradiol (4mg/kg) immediately following the injury and after the placement of skin sutures and a control group with rats only subjected to SCI. A moderate standard experimentally induced SCI was produced using a computerized device that dropped a weight on the rat's spine from a height of 12.5 mm. Functional recovery was verified with the Basso, Beattie and Bresnahan scale on the 2nd, 7th, 14th, 21st, 28th, 35th and 42nd days after injury and by quantifying the motor-evoked potential on the 42nd day after injury. Histopathological evaluation of the SCI area was performed after euthanasia on the 42nd day. RESULTS: The experimental group showed a significantly greater functional improvement from the 28th to the 42nd day of observation compared to the control group. The experimental group showed statistically significant improvements in the motor-evoked potential compared with the control group. The results of pathological histomorphometry evaluations showed a better neurological recovery in the experimental group, with respect to the proportion and diameter of the quantified nerve fibers. CONCLUSIONS: Estrogen administration provided benefits in neurological and functional motor recovery in rats with SCI beginning at the 28th day after injury.
Iroquois homeobox gene 3 establishes fast conduction in the cardiac His–Purkinje network

Rapid electrical conduction in the His–Purkinje system tightly controls spatiotemporal activation of the ventricles. Although recent work has shed much light on the regulation of early specification and morphogenesis of the His–Purkinje system, less is known about how transcriptional regulation establishes impulse conduction properties of the constituent cells. Here we show that Iroquois homeobox gene 3 (Irx3) is critical for efficient conduction in this specialized tissue by antithetically regulating two gap junction–forming connexins (Cxs). Loss of Irx3 resulted in disruption of the rapid coordinated spread of ventricular excitation, reduced levels of Cx40, and ectopic Cx43 expression in the proximal bundle branches. Irx3 directly represses Cx43 transcription and indirectly activates Cx40 transcription. Our results reveal a critical role for Irx3 in the precise regulation of intercellular gap junction coupling and impulse propagation in the heart.