Miracle-dz/UniFAR-FTUs huggingface dataset:
Relación de variables cognitivo-emocionales con el rendimiento académico

El bajo rendimiento academico y las bajas en el primer ano universitario son problemas que comparten las instituciones de educacion superior. La investigacion en este campo ha sido muy activa; continua la polemica acerca de si el rendimiento academico esta relacionado con habilidades intelectuales, con el rendimiento academico anterior y/o con factores emocionales. En este estudio participaron 151 alumnos del Instituto Tecnologico y de Estudios Superiores de Monterrey, Campus Queretaro. Se exploro: a) la correlacion entre el rendimiento academico total y por materias (promedio del semestre), con las dimensiones del estilo atribucional (ASQ), auto-concepto (AF5), ansiedad (ISRA), el promedio de preparatoria y las puntuaciones del SAT; b) la diferencia entre dos grupos de alumnos con diferente nivel de habilidades academicas iniciales (SAT). Se encontraron: a) correlaciones significativas entre variables academicas y ansiedad, con el rendimiento por materias en el grupo con mayores habilidades academicas; b) correlaciones significativas entre estilo atribucional con el rendimiento total y por materias en el grupo de menores habilidades academicas. En general se observa que el rendimiento academico es un fenomeno complejo que depende de las habilidades academicas y emocionales del sujeto, asi de la materia y de la dificultad relativa de la tarea
The GlideScope® Video Laryngoscope and the Macintosh Laryngoscope Compared in a Simulated Difficult Airway with Immobilization and Bleeding—A Randomized, Prospective, Crossover Study

Background: This study assesses the effectiveness of the GlideScope? Videolaryngoscope (GS) in comparison with the Macintosh laryngoscope in a simulated difficult airway with blood in the airway and restricted range of motion of the neck. 39 participants experienced with the GS and the Macintosh laryngoscope were used. Methods: This analysis is a prospective, randomized, crossover study. Our study was performed on an intubation simulation model with artificial blood in the airway and restricted range of motion. The intubation time was recorded from picking up the laryngoscope to advancing the endotracheal tube through the glottic opening. Secondary endpoints were the Cormack & Lehane score, the percentage of the glottis seen, the subjective difficulty of the procedure on a scale of 0 to 10, the number of adjustment maneuvers, the number of attempts, and the number of failed intubations. Attempts were defined as removal of instruments from the airway and reinsertion. Failed intubations were defined as esophageal intubations or intubations lasting longer than 120 seconds. Results: The mean intubation time was 47.6 seconds with the GS and 21.4 seconds with the Macintosh laryngoscope. There were 3 failed intubations with the Macintosh laryngoscope and 4 failed intubations with the GS. The failed intubations with the Macintosh laryngoscope were all esophageal intubations. The failed intubations with the GS were due to exceeding the time limit of 120 seconds. Both devices had a mean Cormack & Lehane score of 1.8 and the mean percentage of the Glottis seen was 58% for both devices. The average subjective difficulty on a scale from 0 to 10 was ranked 4.16 for the Macintosh and 5.14 for the GS. Participants needed an average of 1 adjustment maneuvers with the Macintosh laryngoscope and 2.7 adjustments with the GS. Conclusion: The GS, used by experienced anesthesiologists in a simulated difficult airway, had an inferior performance compared to the Macintosh laryngoscope in terms of intubation time, number of intubation attempts, number of adjustment maneuvers, and number of failed intubations.
Broadcasting and Gossiping in de Bruijn Networks

Communication schemes based on store and forward routing, in which a processor can communicate simultaneously with all its neighbors (in parallel) are considered. Moreover, the authors assume that sending a message of length $L$ from a node to a neighbor takes time $\beta + L \tau$. The authors give efficient broadcasting and gossiping protocols for the de Bruijn networks. To do this, arc-disjoint spanning trees of small depth rooted at a given vertex in de Bruijn digraphs are constructed.
New destinations, new trajectories? The educational progress of Hispanic youth in North Carolina.

Since 1990, Latin American immigrants to the United States have dispersed beyond traditional gateway regions to a number of "new destinations. " Both theory and past empirical evidence provide mixed guidance as to whether the children of these immigrants are adversely affected by residing in a nontraditional destination. This study uses administrative public school data to study over 2,800 8- to 18-year-old Hispanic youth in one new destination, North Carolina. Conditional on third-grade socioeconomic indicators, Hispanic youth who arrive by age 9 and remain enrolled in North Carolina public schools close achievement gaps with socioeconomically similar White students by sixth grade and exhibit significantly lower high school dropout rates. Their performance resembles that of first-generation youth in more established immigration gateways.
Expanded metabolic versatility of ubiquitous nitrite-oxidizing bacteria from the genus Nitrospira

Significance Nitrification, the sequential aerobic oxidation of ammonia via nitrite to nitrate, is a key process of the biogeochemical nitrogen cycle and catalyzed by two aerobic microbial guilds (nitrifiers): ammonia oxidizers and nitrite-oxidizing bacteria (NOB). NOB are generally considered as metabolically restricted and dependent on ammonia oxidizers. Here, we report that, surprisingly, key NOB of many ecosystems (Nitrospira) convert urea, an important ammonia source in nature, to ammonia and CO2. Thus, Nitrospira supply urease-negative ammonia oxidizers with ammonia and receive nitrite produced by ammonia oxidation in return, leading to a reciprocal feeding interaction of nitrifiers. Moreover, Nitrospira couple formate oxidation with nitrate reduction to remain active in anoxia. Accordingly, Nitrospira are unexpectedly flexible and contribute to nitrogen cycling beyond nitrite oxidation. Nitrospira are a diverse group of nitrite-oxidizing bacteria and among the environmentally most widespread nitrifiers. However, they remain scarcely studied and mostly uncultured. Based on genomic and experimental data from Nitrospira moscoviensis representing the ubiquitous Nitrospira lineage II, we identified ecophysiological traits that contribute to the ecological success of Nitrospira. Unexpectedly, N. moscoviensis possesses genes coding for a urease and cleaves urea to ammonia and CO2. Ureolysis was not observed yet in nitrite oxidizers and enables N. moscoviensis to supply ammonia oxidizers lacking urease with ammonia from urea, which is fully nitrified by this consortium through reciprocal feeding. The presence of highly similar urease genes in Nitrospira lenta from activated sludge, in metagenomes from soils and freshwater habitats, and of other ureases in marine nitrite oxidizers, suggests a wide distribution of this extended interaction between ammonia and nitrite oxidizers, which enables nitrite-oxidizing bacteria to indirectly use urea as a source of energy. A soluble formate dehydrogenase lends additional ecophysiological flexibility and allows N. moscoviensis to use formate, with or without concomitant nitrite oxidation, using oxygen, nitrate, or both compounds as terminal electron acceptors. Compared with Nitrospira defluvii from lineage I, N. moscoviensis shares the Nitrospira core metabolism but shows substantial genomic dissimilarity including genes for adaptations to elevated oxygen concentrations. Reciprocal feeding and metabolic versatility, including the participation in different nitrogen cycling processes, likely are key factors for the niche partitioning, the ubiquity, and the high diversity of Nitrospira in natural and engineered ecosystems.
Avian Influenza A(H7N2) Virus in Human Exposed to Sick Cats, New York, USA, 2016

An outbreak of influenza A(H7N2) virus in cats in a shelter in New York, NY, USA, resulted in zoonotic transmission. Virus isolated from the infected human was closely related to virus isolated from a cat; both were related to low pathogenicity avian influenza A(H7N2) viruses detected in the United States during the early 2000s.
A system for the behavioral assessment of athletic coaches.

Abstract A behavioral assessment system for coding and analyzing the behaviors of athletic coaches in naturalistic settings is described. The Coaching Behavior Assessment System (CBAS) consists of 12 behavioral categories derived from content analyses of coaching behaviors during practices and games. The manner in which coders are trained and the CBAS used in field settings is described, and the results of several reliability studies are reported. These studies indicate that high scorer accuracy and interrater reliability can be attained. The potential use of the CBAS to extend the study of interpersonal behavior into the realm of sport psychology is also discussed.
Dielectric properties of tumor and normal tissues at radio through microwave frequencies.

AbstractWe summarize the dielectric permittivity and conductivity of various canine tumor and normal tissues, and single excised muscle fibers from the giant barnacle, at frequencies from 10 MHz to 18 GHz, with emphasis on the mechanisms thai are responsible for the dielectric properties of the tissues. We discuss the variation in the dielectric properties with tissue water content and provide simple empirical formulas to allow the estimation of the dielectric properties of other soft tissues on the basis of the net tissue water content. From these considerations, we consider the possible variation in dielectric properties of living tissue in situ, with those of the excised tissue, and of tumor vs. normal tissues.
Bimodal Evolutionary Developmental miRNA Program in Animal Embryogenesis

&NA; miRNAs play essential roles in the mechanics of gene regulation, however, on an organismal‐scale, the processes in which they are deployed are not well understood. Here, we adopt an evolutionary developmental approach to study miRNA function by examining their expression throughout embryogenesis in both Caenorhabditis elegans and Drosophila melanogaster. We find that, in both species, miRNA transcriptomic shifts in a punctuated fashion during the mid‐developmental transition, specifying two dominant modes of early and late expression profiles. Strikingly, late‐expressed miRNAs are enriched for phylogenetic conservation and function by fine‐tuning the expression of their targets, implicating a role in the canalization of cell types during differentiation. In contrast, early expressed miRNAs are inversely expressed with their targets suggesting strong target‐inhibition. Taken together, our work exposes a bimodal role for miRNA function during animal development, involving late‐expressed physiological roles and early expressed repressive roles.
Percutaneous microwave ablation of renal cell carcinoma using a high power microwave system: focus upon safety and efficacy

Abstract Objectives: Percutaneous ablation is an expanding, minimally invasive approach for small- to medium-sized renal masses. The purpose of this study is to review safety, and mid-term efficacy of percutaneous microwave ablation (MWA) for Renal Cell Carcinoma (RCC) treatment using a high power microwave system. Methods and materials: Institutional database research identified 50 consecutive patients with a single lesion resembling renal cell carcinoma in CT and MRI who underwent percutaneous microwave ablation using a high power microwave system. All patients underwent biopsy on the same session with ablation using an 18G semi-automatic soft tissue biopsy needle. Contrast-enhanced computed tomography or magnetic resonance imaging was used for post-ablation follow-up. Patient and tumour characteristics, microwave technique, complications and pattern of recurrence were evaluated. Results: Mean patient age was 74 years (male–female: 31–19). Average lesion size was 3.1 cm (range 2.0–4.3 cm). Biopsy results report RCC (n = 48), inflammatory myofibroblastic tumour (n = 1), and non-diagnostic sample (n = 1). The 3-year overall survival was 95.8% (46/48). Two patients died during the 3-year follow-up period due to causes unrelated to the MW ablation and to the RCC. Minor complications including haematomas requiring nothing but observation occurred at 4% (2/50) of the cases. Local recurrence of 6.25% (3/48) was observed with 2/3 cases being re-treated achieving a total clinical success of 97.9% (47/48 lesions). Conclusions: Percutaneous microwave ablation of RCC using a high power microwave system is a safe and efficacious technique for the treatment of small- to medium-sized renal masses.
Intrahepatic metastases in hepatocellular carcinoma: evidence for spread via the portal vein as an efferent vessel.

BACKGROUND The mechanism and pathogenesis of the high frequency of intrahepatic metastasis in hepatocellular carcinoma (HCC) has not yet been elucidated. METHODS Two hundred thirty-one tumors ( < or = 5 cm in diameter) of resected specimens of HCC were examined for the relationship between mode of tumor spread and tumor size. Efferent vessels in HCC were identified by direct injection of radiopaque material into the tumor in 23 resected liver specimens selected from the 231 tumors. RESULTS The most frequent site for tumor spread in HCC was capsular invasion followed by extracapsular invasion, vascular invasion, and finally intrahepatic metastasis. Radiopaque material injected directly into 23 resected tumors entered the portal vein in only 17 tumors and entered into both the portal and hepatic veins in six tumors. CONCLUSIONS These findings suggest that tumor spread in HCC progresses from capsular invasion to intrahepatic invasion and that the portal vein may act as an efferent tumor vessel.
Timing Affect: Dimension-Specific Time-Based Expectancy for Affect

Affective information in our environment is often predictable by time; for example, positive answers are typically given faster than negative ones. Here we demonstrate, for the first time, that humans can implicitly adapt to time-based affect predictability. Participants were asked to categorize words, with the words’ irrelevant valences being predictable by the timing of their occurrence. Adaptation to this pattern became evident by better performance for typical combinations of time and valence, relative to atypical combinations (Experiment 2). A comparable adaptation was observed for predictable activation (another affective dimension, Experiment 4), but not for predictable imageability (a nonaffective dimension, Experiment 3). In none of the experiments did participants become aware of the time-based predictability. These findings have significant implications for our theoretical understanding of human time-based expectancy, as well as important implications for the scheduling of system delays in artificial interaction and communication environments.
The burden of illness of severe nausea and vomiting of pregnancy in the United States.

OBJECTIVE Our purpose was to determine the extent to which nausea and vomiting of pregnancy affects a woman's quality of life (QOL), ability to function, and health care resource use. STUDY DESIGN We conducted an observational, multicenter, prospective cohort study by gathering data on the symptoms, QOL, and health care resource use from women who have nausea and vomiting of pregnancy. RESULTS All 8 domains of health measured by the Short Form-36 QOL survey were limited by patient symptoms. This limitation manifested itself as patient-time loss from work and other normal activities, unpaid caregiver-time loss from work, and use of health care resources (eg, hospitalization). All types of time loss were correlated to severity of symptoms. CONCLUSIONS Nausea and vomiting of pregnancy can severely reduce a woman's QOL and ability to function. The degree of limitation is associated with the severity of symptoms.
IRIS segmentation using Daughman's method

Iris recognition is the most reliable and accurate biometric identification system. Iris recognition system captures an image of an individual's eye, the iris in the image is segmented and normalized for extracting its feature. The performance of iris recognition systems depends on the process of segmentation of iris form the eye image. Segmentation is the most important part in iris recognition process because areas that are wrongly segmented out as iris regions will corrupt biometric templates resulting in very poor recognition. There are various methods for segmenting iris from eye image and give the best segmented result. In this paper, Daugman's method is used to find out the pupil and the iris boundaries. Here Iris images are taken from the CASIA Database, then the iris and pupil boundary are detected. By using Daughman's method the iris boundaries are segmented out. The computational time of segmentation by Daughman's method is less as it take very less time to segment the iris and pupilary boundaries of eye image and give appropriate value. Hence this method gives fast segmented output.
TGF&bgr;RIIb Mutations Trigger Aortic Aneurysm Pathogenesis by Altering Transforming Growth Factor &bgr;2 Signal Transduction

Background—Thoracic aortic aneurysm (TAA) is a common progressive disorder involving gradual dilation of the ascending and/or descending thoracic aorta that eventually leads to dissection or rupture. Nonsydromic TAA can occur as a genetically triggered, familial disorder that is usually transmitted in a monogenic autosomal dominant fashion and is known as familial TAA. Genetic analyses of families affected with TAA have identified several chromosomal loci, and further mapping of familial TAA genes has highlighted disease-causing mutations in at least 4 genes: myosin heavy chain 11 (MYH11), &agr;-smooth muscle actin (ACTA2), and transforming growth factor &bgr; receptors I and II (TGF&bgr;RI and TGF&bgr;RII). Methods and Results—We evaluated 100 probands to determine the mutation frequency in MYH11, ACTA2, TGF&bgr;RI, and TGF&bgr;RII in an unbiased population of individuals with genetically mediated TAA. In this study, 9% of patients had a mutation in one of the genes analyzed, 3% of patients had mutations in ACTA2, 3% in MYH11, 1% in TGF&bgr;RII, and no mutations were found in TGF&bgr;RI. Additionally, we identified mutations in a 75 base pair alternatively spliced TGF&bgr;RII exon, exon 1a that produces the TGF&bgr;RIIb isoform and accounted for 2% of patients with mutations. Our in vitro analyses indicate that the TGF&bgr;RIIb activating mutations alter receptor function on TGF&bgr;2 signaling. Conclusions—We propose that TGF&bgr;RIIb expression is a regulatory mechanism for TGF&bgr;2 signal transduction. Dysregulation of the TGF&bgr;2 signaling pathway, as a consequence of TGF&bgr;RIIb mutations, results in aortic aneurysm pathogenesis.
Role of levonorgestrel-releasing intrauterine system in dysmenorrhea due to adenomyosis and the influence on ovarian function.

BACKGROUND The objective of this study was to evaluate the efficacy and side-effects of the levonorgestrel-releasing intrauterine system (LNG-IUS) in the treatment of moderate or severe dysmenorrhea associated with adenomyosis and the influence on ovarian function. STUDY DESIGN The LNG-IUS was inserted into 60 women who had moderate or severe dysmenorrhea associated with adenomyosis diagnosed by transvaginal sonography. A visual analogue scale (VAS) of dysmenorrhea, uterine volume and serum-levels of follicle stimulating hormone (FSH), luteinizing hormone (LH), etstradiol (E2), and prolactin (PRL) were used to assess the efficacy of the treatment at base- line and at six and 12 months after the LNG-IUS. Serum-levels ofFSH, LH, E2, and PRL were tested in pre-and post-insertion at six and at 12 months, respectively. Side-effects were recorded at every follow-up visit. RESULTS After six and 12 months of LNG-IUS insertion, dysmenorrhea was obviously alleviated, and the dysmenorrhea scores decreased to 2.6 from 0.6 (p < 0.05). The volume of uterus reduced six months after insertion and later, but without significant change (p <0.05). After treatment of serum, in terms ofFSH, LH, and E2 lev- els, compared with pre-insertion, there was no statistically significant difference (p > 0.01). However, the level of PRL markedly de- clined at six and 12 months after LNG-IUS. CONCLUSION The LNG-IUS appears to be an effective method in alleviating dysmenorrhea associated with adenomyosis with little effect on ovarian function. It may be helpful to decrease the level of PRL in these patients.
Ordered conformational change in the protein backbone: Prediction of conformationally variable positions from sequence and low‐resolution structural data

Ordered conformational changes are an important structural property of proteins and are involved in a variety of fundamental biological activities. Large‐scale analyses of the implications of such changes for protein function and dysfunction require efficient methods for automated recognition of conformationally variable residue positions. The goal of this work was to study sequence and low‐resolution structural properties of residue positions that change backbone conformation upon changes in protein environment and the utility of these properties for automated recognition of such conformationally variable positions. This study was performed using a large nonredundant set of experimentally characterized proteins that undergo ordered conformational transitions obtained from the Database of Macromolecular Movements. The results of this study show that ordered changes in backbone conformation are not limited to solvent accessible loop regions. A considerable fraction of conformationally variable positions is observed in helices and strands, and in buried positions. Conformationally variable positions are less conserved in evolution. Local patterns of (a) sequence neighbors, (b) evolutionary conservation, and (c) solvent accessibility can be used to predict conformationally variable positions with balanced sensitivity and specificity, albeit with large variance at the level of individual proteins. However, including a pattern of secondary structure into the prediction scheme results in a highly unbalanced performance when all conformationally variable positions located in regular secondary structure are misclassified. Application of the present methodology to the prion protein (PrP) shows that conformationally variable positions predicted in its ordered C‐terminal domain are located within segments presumed to be involved in refolding of PrP. Proteins 2008. © 2008 Wiley‐Liss, Inc.