Miracle-dz/UniFAR-FTUs huggingface dataset:
Ability-Grouping Research Reviews: What Do They Say about Grouping and the Gifted?.

T he questions of whether, when, and how to group students ac cording to academic ability rep resent some of the most difficult and frustrating challenges facing educators today. Seeking to help answer these questions, researchers have applied new techniques of research review to this subject. Two prominent sets of reviews the meta-analyses of James Kulik and Chen-Lin Kuiik of the Univer sity of Michigan (1982, 1984b) and the best-evidence syntheses of Robert Slavin of Johns Hopkins University (1986, 1990; attempt to synthesize this information. These reviews, their techniques, and their findings are im portant to educators who need to make decisions about grouping that are based on accurate knowledge of its effects. This article provides both a synthesis and a critique of these re search reviews of ability grouping with the aim of clarifying for practitioners how these synthetic techniques affect the results; what research questions are being asked and answered; and what is and isn't established by the research.
TRANSCRESTAL MAXILLARY SINUS FLOOR ELEVATION USING THE BALLOON TECHNIQUE WITH SIMULTANEOUS IMPLANT PLACEMENT

INTRODUCTION: Rehabilitation of the maxilla using implants is frequently problematic because of the pneumatization of the maxillarysinus into the alveolar ridge. When only a few millimeters of augmentation are needed in conjunction with simultaneous implant placement,an indirect sinus lift is effective. This study describes transcrestal sinus lift using the sinus balloon technique and DASK (Dentium AdvancedSinus Kit) drills for implant placement in patients with an atrophic maxillary posterior area with synthetic bone graft, to evaluate the boneheight achieved and the implant success rate.OBJECTIVES: To evaluate clinically and radiographically the simultaneous implant placement and grafting with synthetic bone graft afterSchneiderian membrane elevation using the maxillary sinus balloon technique and DASK drills.MATERIALS AND METHODS A total of 13 patients with missing posterior maxillary teeth (premolars or molars) and with limited boneheight below the floor of the maxillary sinus received an implant and grafting with synthetic bone graft after maxillary sinus lifting using amaxillary sinus balloon technique and DASK drills.RESULTS: Cone beam computerized tomography 6 months postoperatively showed statistically significant increase in bone height anddensity. The mean preoperative vertical bone height value was (5.97 ± 1.17 mm), while the mean 6 months postoperative vertical bone heightvalue was (10.45 ± 1.56 mm). The mean preoperative implant bone density value was (349.6 ± 1265.9 HU), while the mean postoperativeimplant bone density was (771.1 ± 239.1 HU). CONCLUSIONS: Sinus balloon and DASK drills are an acceptable tool for indirect sinus lifting with simultaneous implant placement.KEYWORDS: Transcrestal approach, sinus balloon technique, DASK drills, implants.
On Weddle surfaces and their moduli

The Weddle surface is classically known to be a birational (partially desingularized) model of the Kummer surface. In this note we go through its relations with moduli spaces of abelian varieties and of rank two vector bundles on a genus 2 curve. First we construct a moduli space A\_2(3)^- parametrizing abelian surfaces with a symmetric theta structure and an odd theta characteristic. Such objects can in fact be seen as Weddle surfaces. We prove that A\_2(3)^- is rational. Then, given a genus 2 curve C, we give an interpretation of the Weddle surface as a moduli space of extensions classes (invariant with respect to the hyperelliptic involution) of the canonical sheaf \omega of C with \omega^{-1}. This in turn allows to see the Weddle surface as a hyperplane section of the secant variety Sec(C) of the curve C tricanonically embedded in P^4.
Health worker led breast examination in rural India using electro-mechanical hand-held breast palpation device

Breast cancer is the most common female cancer worldwide representing nearly a quarter (23%) of all cancers in women.1,2 The global burden of breast cancer is expected to cross 2million by the year 2030, with growing proportions from developing countries.3 Although age-standardised incidence rates in India are lower than in the United Kingdom (UK) (25.8 versus 95per 100,000), mortality rates are nearly as high (12.7 versus 17.1 per 100,000, respectively) as those of the UK.1 Breast cancer incidence rates within India display a 3–4-fold variation across the country, with the highest rates observed in the Northeast and in major metropolitan cities such as Mumbai and New Delhi.4
Equatorial wave sequence associated with warm pool displacements during the 1986-1989 El Niño-La Niña

In the Pacific equatorial band the zonal displacement of the eastern edge of the warm pool, subject to insignificant seasonal variations, is dominated by strong interannual variations almost in phase with the Southern Oscillation Index. Over the 1971-1973 El Nino-La Nina period, Gill (1983) suggested that such displacement was caused solely by horizontal advection by zonal current anomaly. Basin-wide Geosat- derived zonal surface current anomalies are available during the 1986-1989 period, and they agree quite well with observed equatorial currents in the western and central Pacific. Within the 4ON-4"S equatorial band the cumulative contribution of 'first-baroclinic Kelvin and first-symmetric (m = 1) Rossby modes to surface zonal equatorial current anomalies account for most of the Geosat-derived current variability. From these Geosat-derived currents it is demonstrated that the eastward (westward) displacement of the eastern edge of the warm pool was primarily due to horizontal advection by zonal current anomalies during the 1986-1987 El Nino (1988-1989 La Nina). As a corollary, the El Nino (La Nina) warm (cold) sea surface temperature (SST) anomaly in the central western Pacific was the result of anomalous zonal advection. The 1986-1989 displacement of the warm pool appeared as a low-frequency movement resulting from high-frequency forcing, i.e., a succession of local wind forcing and its remote Kelvin and m = 1 Rossby wave responses in the equatorial waveguide. In the central western Pacific a in = 1 downwelling Rossby wave, issued from the eastern Pacific, shifted the displacement from eastward to westward and therefore seems to have been the cause for El Nino to turn to La Nina in boreal fall 1987. In the eastern Pacific the simultaneous occurrence of free-propagating downwelling (upwelling) Kelvin waves with the seasonal SST warming (cooling) appeared necessary for the development of local El Nino (La Nina) SST anomaly. Over most of the equatorial Pacific, slow migration of SST anomalies clearly showed up, distinct during El Nino and La Nina. These zonal migrations appeared to result from the delayed association of two phenomena: the zonal advection in the central western Pacific and the arrival of downwelling (upwelling) Kelvin waves into the eastern Pacific, synchronous with the seasonal SST warming (cooling). Albeit different in terms of equatorial wave action, as compared to the delayed action oscillator theory, our results suggest that zonal advection and wave dynamics were both important for the generation and migration of El Nino- Southern Oscillation SST anomalies in 1986-1989. Finally, our observational results about warm pool displacements, equatorial wave sequence, the shift from El Nino to La Nina, and the slow SST migrations are presented in a schematic form involving sequential ocean-atmosphere coupling which appears continuously over the November 1986 to A- &=
Functionally specific binding regions of microtubule-associated protein 2c exhibit distinct conformations and dynamics

Microtubule-associated protein 2c (MAP2c) is a 49-kDa intrinsically disordered protein regulating the dynamics of microtubules in developing neurons. MAP2c differs from its sequence homologue Tau in the pattern and kinetics of phosphorylation by cAMP-dependent protein kinase (PKA). Moreover, the mechanisms through which MAP2c interacts with its binding partners and the conformational changes and dynamics associated with these interactions remain unclear. Here, we used NMR relaxation and paramagnetic relaxation enhancement techniques to determine the dynamics and long-range interactions within MAP2c. The relaxation rates revealed large differences in flexibility of individual regions of MAP2c, with the lowest flexibility observed in the known and proposed binding sites. Quantitative conformational analyses of chemical shifts, small-angle X-ray scattering (SAXS), and paramagnetic relaxation enhancement measurements disclosed that MAP2c regions interacting with important protein partners, including Fyn tyrosine kinase, plectin, and PKA, adopt specific conformations. High populations of polyproline II and α-helices were found in Fyn- and plectin-binding sites of MAP2c, respectively. The region binding the regulatory subunit of PKA consists of two helical motifs bridged by a more extended conformation. Of note, although MAP2c and Tau did not differ substantially in their conformations in regions of high sequence identity, we found that they differ significantly in long-range interactions, dynamics, and local conformation motifs in their N-terminal domains. These results highlight that the N-terminal regions of MAP2c provide important specificity to its regulatory roles and indicate a close relationship between MAP2c's biological functions and conformational behavior.
Home automation using Internet of Things

This paper represents the controlling and monitoring of the home environment using wireless sensors. An automated system is represented which can be used for controlling the lights and fans. A computer screen or a Smartphone can be used to monitor the Main control Unit(MCU). A very simplistic Graphical User Interface (GUI) is used which can be easily understandable for the target user. To make the data easily available to the user, this GUI will be implemented on the webpage.
Sparse representation based classification with intra-class variation dictionary on symmetric positive definite manifolds

Sparse representation based classification (SRC) using training samples as a dictionary has engendered promising results for many computer vision tasks. However, although the SRC classifier exhibits very competitive performances when given sufficient training samples of each class, it presents the difficulty that its performance decreases considerably when fewer training samples are used. As described herein, we propose a Riemannian SRC with intra-class variation dictionary on SPD matrices, R-ESRC. The key challenge is establishment of a mathematically correct intra-class variation dictionary in terms of geometry of SPD manifold. To this end, we exploit the geometric mean calculation and the logarithm mapping. Numerical evaluations demonstrate the superior performance of our proposed algorithm.
Simulation of genre based movie recommendation system using Hadoop MapReduce technique

Recommendation systems have gained tremendous popularity over the past few years. As we all know recommendation systems have provided a boon in the field of online shopping and other browsing portals. Recommendation systems use machine learning techniques to predict what the user may like based on his history of interaction with a system full of items. At present there are many approaches known to implement a recommendation system. These approaches have several algorithms with various efficiencies. The efficiency and the accuracy of the recommendation system solely depend on the algorithm used. Hence, we've designed, implemented, and successfully deployed a system that uses an ensemble of item-, and hybrid-based recommendation systems. In this paper we are going to explain how the results from two algorithms which are run on Hadoop are combined to get more accurate movie recommendations. [1]
KNN based emotion recognition system for isolated Marathi speech

This paper gives a comparison of two extracted features namely pitch and formants for emotion recognition from speech. The research shows that various features namely prosodic and spectral have been used for emotion recognition from speech. The database used for recognition purpose was developed on Marathi language using 100 speakers. We have extracted features pitch and formants. Angry, stress, admiration, teasing and shocking have been recognized on the basis of features energy and formants. The classification technique used here is KNearest Neighbor (KNN). The result for formants was about 100% which is comparatively better than that of energy which was 80% of accuracy. Keywords-Database, Emotion recognition, Feature Extraction, Formants, KNN classification , Pitch, Speech signals.
Diversity and enzymatic activity of foliar endophytic fungi isolated from medicinal plants of Indian dry deciduous forest

Twenty Four foliar endophytic fungal species were isolated from the living asymptomatic leaves of 37 medicinal plants from Bhadrachalam dry deciduous forest along the river Godavari of Khammam district, Andhra Pradesh, India. Morphotypes of mycelia sterilia are predominant among frequent fungal endophytes. Endophytes associated with Andrographis paniculata are more in number while Holorrhina antidysentrica supported minimum endophytic fungi. Species of Acremonium, Cladosporium, Curvularia, Alternaria and Colletotrichum were frequently isolated. Arthrinium phaeospermum is a rare and infrequent endophyte mostly isolated from Andrographis paniculata. Badarisima sojae, Emericella nidulans, Sordaria fimicola, Stachybotrys chartarum, Tretopileus sphaerophorus are the new endophytes reported for the first time. Among the 24 endophytic fungi, majority produced amylase (58%) followed by pectinase (45%) and protease (33%). None of the endophytes exhibited lipolytic or lignolytic activity. The results provide valuable information on endophytic fungal diversity from natural dry deciduous forest flora under the threat of inundation by the ongoing Polavaram irrigation project. Enzymatic ability of the endophytes suggests their potential use as novel agents for new drugs and other industrially important secondary metabolites.
Information-Centric Multi-Access Edge Computing Platform for Community Mesh Networks

Edge computing is shaping the way to run services in the Internet by allowing the computations to become available close to the user's proximity. Many implementations have been recently proposed to facilitate the service delivery in data centers and distributed networks. However, we argue that those implementations cannot fully support the operations in Community Mesh Networks (CMNs) since the network connection is highly intermittent and unreliable. In this paper, we propose PiCasso, a novel multi-access edge computing platform that combines the advances in lightweight virtualisation and Information-Centric Networking (ICN). PiCasso utilises in-network caching and name based routing of ICN to optimise the forwarding path of service delivery. We analyse the data collected from Guifi.net, the biggest CMN worldwide, to develop smart heuristic for the service deployment. Through a real deployment in Guifi.net, we show that our service deployment heuristic HANET (HArdware and NETwork Resources), improves the response time up to 53% and 28.7% for stateless and stateful services respectively. Finally, using PiCasso for the service delivery in Guifi.net, we achieve 43% traffic reduction compared to the traditional host-centric communication.
Secured remote configuration approach for industrial cyber-physical systems

Facilitating remote updates of configuration parameters for industrial cyber-physical systems (ICPSs) is an emerging requirement due to interconnected production facilities. However, allowing remote configuration changes entail the following security issues. Malicious configuration updates through unprotected configuration interfaces can physically harm the ICPS or the respective process, and even threaten human lives. Also, for configuration interfaces to be remotely accessible, corporate networks need to be configured accordingly to provide access possibilities. Such additional access possibilities might then be used by adversaries when attacking corporate networks and thus, are often seen as a security weakness. If ICPS are not updated, outdated configurations also lead to security weaknesses. To mitigate these issues, we present a secured remote configuration approach for ICPS that protects the configuration interface as well as configuration data. The approach utilizes appropriate security measures and is realized as external configuration update module to allow easy verification of ongoing update processes.
Stimulation of alpha-amylase release and cyclic AMP accumulation by catecholamine in rat parotid slices in vitro.

The role of cyclic AMP in α-amylase release by catecholamines was studied in rat parotid slices. The order of potency required for catecholamines to induce α-amylase release as well as cyclic AMP accumulation was as follows: isoproterenol>norepinephrine=epinephrine>> phenylephrine. At the lowest concentration tested, all of the catecholamines stimulated α-α-mylase release without causing a detectable accumulation of cyclic AMP. High doses of phenylephrine and other derivatives of catecholamines such as salbutamol and soterenol stimulated α-amylase release, but they did not cause accumulation of cyclic AMP and their maximum effects on α-amylase release were significantly lesser than those of norepinephrine. High concentrations of these derivatives decreased the effect of norepinephrine on α-amylase release, which may be attributed to be the cause of this smaller maximum effect. The stimulation of cyclic AMP accumulation by norepinephrine was much more sensitive to inhibition by β-adrenergic antagonists than was the stimulation of α-amylase release by norepinephrine. The effect of norepinephrine on cyclic AMP accumulation was potentiated by isobutylmethylxanthine, which correlated with the degree of inhibition of phosphodiesterase. The effect of low doses of norepinephrine on α-amylase release was increased by isobutyl-methylxanthine, but there was no such effect when either high doses of norepinephrine or dibutyryl cyclic AMP was used. The stimulation of α-amylase release by 1 μm norepinephrine was much greater than that by 0.2 μM norepinephrine plus 0.5 mm isobutylmethylxanthine, while the reverse was took place in cyclic AMP accumulation. Thus, there was a marked dissociation of cyclic AMP accumulation and α-amylase release. The bearing of these results on the role of cyclic AMP in α-amylase release was discussed.
Recent increases in survival of western Steller sea lions in Alaska and implications for recovery

Survival rates of endangered western stock Steller sea lions Eumetopias jubatus east of Samalga Pass (~170° W) have rebounded to nearly the same levels estimated for the 1970s prior to their decline in abundance. We estimated survival of sea lions hot-branded as pups (N = 1449) in 2000−2005 using Cormack-Jolly-Seber mark-recapture models and sighting data collected through 2011. Survivorship to Age 7 yr was greater for females (range: 0.352−0.386) than males (0.228−0.275), but was similar for each sex across the study area. Survival was lowest in the first year and increased through Age 4+ yr for both sexes in the eastern Gulf of Alaska (144−150° W). However, to the west, first-year survivorship was greater or equal to that of Year 2, and the differ- ence was generally greater for males than females. Regional differences in the pattern of early survival could reflect spatial variability in early life history (e.g. duration of maternal care, growth rate) or habitat characteristics (e.g. prey availability, rates of predation). Population models indi- cate that natality of the increasing population east of Samalga Pass in 2000−2012 may not be sig- nificantly different from rates estimated for the 1970s prior to the decline in overall western abun- dance. Given current information, western Steller sea lions may satisfy the stock-wide demographic down-listing (to threatened status) criterion by 2015. However, due to continued abundance declines west of Samalga Pass, where no survival data are currently available, it is less certain that the western stock's regional down-listing criteria will be achieved.
Ligand-Tagged Cationic Liposome Facilitates Efficient Gene Delivery to Folate Receptors

Non-viral cationic liposome/DNA complexes (lipoplexes) have been used extensively in gene delivery approaches, although they have shown lower efficiency compared to viral carriers. In this study, a rational strategy was employed taking advantage of a combination of cationic liposomes prepared using the cationic cytofectin MSO9 and a folate ligand to create a more selective and effective gene delivery system to target cancer cells that overexpress the folate receptor (FR). The folate receptor-negative HEK293 (FR–), and folate receptor-positive HeLa (FR+) and KB (FR++) cell lines were employed to evaluate the efficiency of this novel gene delivery system under serum conditions. Folate was conjugated to the distal ends of DSPE-PEG2000 to create DSPE-PEG2000–FOL, which was then incorporated into the cationic liposomal bilayer. Our observations indicate that FA-labelled lipoplexes confer greater DNA protection, with PEGylated systems (liposome : pDNA) producing smallersized particles (<200 nm) ensuring appropriate pDNA release and targeted delivery. Moreover, FA-labelled lipoplexes attained higher transfection activity over nonfolate-labelled lipoplexes in FR-positive cell lines as confirmed by the luciferase and flow cytometry assays. Our results collectively highlight the potential of this lipid-based targeted gene delivery approach for future in vivo applications.
Income Distribution and the Size of the Informal Sector

This paper studies the role of income distribution as a determinant of the size of the informal sector in an economy by relying on a channel whereby inequality affects the behaviour of aggregate demand and thus influences the incentives a firm has to become informal. It is further postulated that income distribution affects the response of the informal sector to different fiscal policies, either demand or supply-orientated. The main findings are that high inequality leads to a large informal sector, and that redistribution towards the middle class decreases the size of the informal sector and increases the capacity of fiscal instruments to reduce informality. Empirical evidence for Mexican cities is provided.
Orodispersible tablets: An overview

Oral drug delivery remains the preferred route for administration of various drugs. Recent developments in the technology have prompted scientists to develop orally disintegrating tablets (ODTs) with improved patient compliance and convenience. ODTs are solid unit dosage forms, which disintegrate or dissolve rapidly in the mouth without chewing and water. Orally disintegrating tablets provide an advantage particularly for pediatric and geriatric populations who have difficulty in swallowing conventional tablets and capsules.This review describes the various formulation aspects, disintegrants employed and technologies developed for ODTs, along with various excipients, evaluation tests, marketed formulations, and drugs explored in this field.