Miracle-dz/UniFAR-FTUs huggingface dataset:
Clinical evaluation of ready made post versus custom made post in mandibular tooth supported overdenture -A randomized clinical trial.

Aim: This study aimed to evaluate the retention and patient satisfaction outcomes in ready made posts versus custom made posts in mandibular tooth supported overdenture . Settings and Design: A randomized clinical trial at faculty of dentistry, Cairo University. Materials and Methods: This study was conducted on twelve patients with bilateral mandibular single rooted teeth; canines , first or second premolars. they were divided into two groups each of six patients. Group A (study group) received ready made posts bilaterally. Group B (control group) received custom made posts bilaterally . The retention was evaluated by the digital Force meter. However the patient satisfaction outcomes was evaluated by tailored chart of questions as regards difficulty in chewing and stability. Results: A statistically significant difference( P < 0.05) were found between both groups ready made post and custom made post at 1m and 3m in both retention and patient satisfaction outcomes however no statistically significant difference ( P > 0.05) were found after 6m for both groups. Conclusion: The results of this study revealed that custom made posts revealed a better retention values and patient satisfaction outcomes than the ready made posts.
Inverse correlation of concurrent BCL2, and C MYC expressions and CD30 ‎positivity as regard the Prognostic significance in diffuse large B-cell ‎lymphoma

Background : C MYC, BCL2 and CD30 play an important role in initiation and propagation of diffuse large B-cell lymphoma (DLBCL). Protein expression of these marker were used in the diagnosis, predicting the prognosis and as a therapeutic target in DLBCL. Purpose : This study aimed to assess the prognostic impact and therapeutic utility of expression patterns of CD30, BCL2, MYC in DLBCL. Patients and Methods: This retrospective study was carried out on DLBCL diagnosed at Oncology Centre Mansoura University (2016-2019). The study was approved by IRB of Mansoura faculty of Medicine Code Number: R.23. 01.2043, 21/03/2023. Results : BCL2, C MYC, concurrent BCL2, C MYC and CD30 overexpression was present in 76%, 36%,and 26% of the studied cases respectively. Concurrent expressions of BCL2, C MYC showed significant association with the presence relapse (P= 0.003). Concurrent expression of BCL2, C MYC revealed significant association with the progressive therapy response (P=0.003). In addition, C MYC, expression was significantly associated with the presence of extra-nodal presentation (P=0.03). CD30 protein overexpression was significantly associated with stage II and III (P=0.03). CD30 positivity showed inverse correlation with the concurrent expression of BCL2, C MYC (Correlation Coefficient=--.355, P=0,02). Also, CD30 positivity and concurrent expression of BCL2, C MYC reflected significant prognostic impact on overall survival (OS) and disease free survival (DFS) (all P=0.00). Conclusion: concurrent C MYC, BCL2 overexpression is associated with a lower OS, and DFS. CD30 positivity is associated with a better OS, and DFS which can be utilized in management plan of DLBCL.
In Vitro Evaluation of Intestinal Transport and High-Density Fermentation of Lactobacillus acidophilus

Lactobacillus acidophilus strains have limiting factors such as low cell density and complex nutritional requirements in industrial production, which greatly restricts their industrial application. In this study, fermentation conditions for L. acidophilus were optimized and transcriptomic analysis used to understand growth mechanisms under high-density fermentation conditions. We found that L. acidophilus IMAU81186 has strong tolerance to gastrointestinal juice. In addition, its optimal culture conditions were 3% inoculum (v/v); culture temperature 37 °C; initial pH 6.5; and medium composition of 30.18 g/L glucose, 37.35 g/L soybean peptone, 18.68 g/L fish peptone, 2.46 g/L sodium citrate, 6.125 g/L sodium acetate, 2.46 g/L K2HPO4, 0.4 g/L MgSO4·7H2O,0.04 g/L MnSO4·5H2O, 0.01 g/L serine, and 0.3 g/L uracil. After optimization, viable counts of IMAU81186 increased by 7.03 times. Differentially expressed genes in IMAU81186 were analyzed at different growth stages using transcriptomics. We found that a single carbon source had limitations in improving the biomass of the strain, and terP and bfrA were significantly down-regulated in the logarithmic growth period, which may be due to the lack of extracellular sucrose. After optimizing the carbon source, we found that adding 12 g/L sucrose to the culture medium significantly increased cell density.
A3 Foresight Program special issue: carbon studies in forested ecosystems

The importance of understanding carbon cycling in ecosystems is increasing. It is commonly known that the terrestrial ecosystems are the major carbon sinks. Although enormous efforts have been focused on terrestrial ecosystems to investigate carbon pools and fluxes, still our knowledge is very limited. This special issue is the product of collaboration under the A3 Foresight Program (Quantifying and predicting terrestrial carbon sinks in East Asia: Toward a network of climate change research) supported by the National Research Foundation of Korea (NRF), the Japan Society for the Promotion of Science (JSPS), and the National Natural Science Foundation of China (NSFC). The program aims to assess the size and spatial pattern of terrestrial carbon sinks in East Asia to predict the changes of carbon sinks under a changing climate, and to initiate an educational and academic network for current and future studies in ecological and environmental sciences among the East Asian countries. For the past five years (2007–2012) new approaches including satellite ecology, ecophysiology, micrometeorology, GIS/RS, and modeling and numerous field studies have been conducted to estimate terrestrial carbon sinks and their mechanisms in the region. During the project period two special journal issues were published (JPR Symposium on carbon cycles process in East Asia, 2010, Journal of Plant Research 123:391–588; Special issue: Carbon budget in East Asian ecosystems, 2010, Science China Life Sciences 53:753–908). Also meetings, workshops, seminars, and symposia have been regularly held to exchange information and knowledge among scientists involved. The current special issue is the collection of nine studies conducted in forests to investigate carbon pools and cycles. Topics broadly cover from ecophysiological analysis to climate change modeling. We express our deep appreciation to the editorial board members of Forest Science and Technology for giving us an opportunity to publish this special issue and also to all A3 Foresight Program members for their support and commitment.
Apport de l'équation de Brinkman à la modélisation de l'écoulement d'eau et du transport de soluté dans l'aquifère karstique: application au système karstique du Val d'Orléans

Les aquiferes karstiques sont caracterises par un ecoulement rapide dans les conduits karstiques et un ecoulement lent dans la roche encaissante (matrice). En raison de cet ecoulement rapide, ces aquiferes sont fortement vulnerables a la pollution. L'objectif principal de cette these est d'evaluer l'importance des echanges d'eau a l'interface entre les conduits et la matrice et par consequent l'impact de ces echanges sur le transport de solute dans le systeme karstique. Pour investiguer l'apport de l'equation de Brinkman a l'evaluation des ecoulements d'eau, un modele dont la geometrie du conduit est decrite par la fonction sinus a ete etabli. Deux scenarii sont appliques. Le scenario A emploie la loi de Darcy dans le conduit et la matrice. Le scenario B emploie l'equation de Brinkman et la loi de Darcy dans le conduit et la matrice, respectivement. Le terme supplementaire de l'equation de Brinkman decrivant les forces de cisaillement joue un role predominant sur l'echange d'eau entre le conduit et la matrice lorsque les conduits sont sinueux. Le modele hydrodynamique - transport a ete applique au systeme karstique du Val d'Orleans. La calibration a demontre que le meilleur diametre moyen du conduit est de 5 m, la permeabilite dans la roche encaissante est de 5,7×10-10 m2 et celle du conduit de 1,65×10-5 m2 a 5,5×10-5 m2. Les predictions du modele hydrodynamique - transport ont ete comparees aux crues de la Loire observees dans les annees 1992 et 1993 durant lesquelles les concentrations en chlorure (traceur naturel conservatif) ont ete dosees dans la Loire et a la source du Bouillon. Avec un coefficient d'emmagasinement dans la matrice de 0,9 m-1, la distance penetree par l'eau de la crue dans la matrice est d'environ 530 m en deux mois pour une crue de 2 m (exemple de 1993).
Lifelong learning‐based multilayer neural network control of nonlinear continuous‐time strict‐feedback systems

In this paper, we investigate lifelong learning (LL)‐based tracking control for partially uncertain strict feedback nonlinear systems with state constraints, employing a singular value decomposition (SVD) of the multilayer neural networks (MNNs) activation function based weight tuning scheme. The novel SVD‐based approach extends the MNN weight tuning to n$$ n $$ layers. A unique online LL method, based on tracking error, is integrated into the MNN weight update laws to counteract catastrophic forgetting. To adeptly address constraints for safety assurances, taking into account the effects caused by disturbances, we utilize a time‐varying barrier Lyapunov function (TBLF) that ensures a uniformly ultimately bounded closed‐loop system. The effectiveness of the proposed safe LL MNN approach is demonstrated through a leader‐follower formation scenario involving unknown kinematics and dynamics. Supporting simulation results of mobile robot formation control are provided, confirming the theoretical findings.
Exact Rényi and Kullback–Leibler Divergences Between Multivariate $t$-Distributions

In this letter, we propose a closed-form expression of the Rényi divergence (RD) of order <inline-formula><tex-math notation="LaTeX">$\beta$</tex-math></inline-formula> between two zero-mean real multivariate <inline-formula><tex-math notation="LaTeX">$t$</tex-math></inline-formula>-distributions (MTDs). Such distribution has been deployed in several signal and image processing applications where heavy-tailed distribution is well-suited. Based on the computation of the multiple integral involved in the RD, the expression of the divergence is provided without resorting to the conventional time-consuming Monte Carlo (MC) integration technique. In addition, the Kullback–Leibler divergence (KLD) is deduced from RD. Finally, a comparison is made between the MC method and the numerical value of the RD expression to show how the former gives close approximations to the latter.
Geophysical investigations of volcanic terrains: a case history from the Gawler Range Volcanic Province, South Australia

Flat-lying magnetic cover rocks, especially when they comprise thick volcanic sequences, present a difficult interpretation problem. Magnetic maps of such regions essentially reflect the exposed volcanic rocks and sources within and beneath the volcanic rocks cannot be easily resolved. Yet such areas are often of economic interest. The Gawler Range Volcanic Province in South Australia represents an example of one such volcanic terrain. The Volcanics are distinctly bimodal in composition: the 'older' units are mafic and the 'younger' units dominantly felsic, with few rocks of intermediate composition. The exposed Volcanics cover approximately 25 000 km2 and drill-hole intersections confirm their existence well beyond the present limits. Magnetite is present in both mafic and felsic volcanic rocks. The province has been identified as a target area for possible epithermal gold mineralisation and volcanogenic-hosted base metal mineralisation. Regional gravity and aeromagnetic data are available over the whole province, while part is covered by a recent high-resolution aeromagnetic and aeroradiometric survey. The Gawler Range Volcanic Province is associated with a large gravity high caused probably by mantle underplating or the emplacement of mantle derivatives prior to the extrusion of the volcanics. This is consistent with isotope data which were previously interpreted to indicate a mantle component for the Volcanics. Two major gravity trends (NE and ESE) intersect within the study area. The ESE-striking trend has been modelled as a deep crustal fault with the southern block down-faulted. These two trends are also reflected in the high-resolution magnetic maps once the high frequencies have been removed from the data. Initial images of the high-resolution aeroradiometric and aeromagnetic data correlated very closely with the outcrop and joint patterns. Areas of radiating fracture patterns may represent volcanic centres. The image of the K:U Ratio reflected minor variations in the otherwise homogeneous geochemistry of the Volcanics. Through image processing and filtering, and combining the interpretation of available geophysical data, an inferred geological map for the area has been suggested. The igneous province is interpreted as extending further eastwards beneath part of the Stuart Shelfing consisting of three well-defined units. The first corresponds to the main Gawler Range Volcanic Province, the second to the south-west gabbroic extension and the third to an eastward extension consisting of a felsic core circled by a mafic ring.
Exploring the Relationship Between a Cognitive Reflection Test and the Psychology
 as a Science Scale

Although the field of psychology was not originally approached systematically, the scientific method is now applied in order to evaluate psychological theories. To further the body of knowledge concerning the public perception of psychology as a science, community college students were recruited for the Psi Beta National Research Project questionnaire that included the Psychology as a Science Scale (PAS) and the Cognitive Reflection Test 2 (CRT-2). Participants received the CRT-2 at either the beginning or midway through the questionnaire, depending on the last digit of the participant’s phone number. The prediction that individuals who received the CRT-2 earlier would score differently on the PAS than those who received it later was not supported. Additionally, the prediction that individuals who are more analytical would score higher on the PAS Scale was supported. The aim of this study was to offer supporting data to further the understanding of the influences of cognitive reflection and public perception of psychology as a science. Implications of these findings may include the recognition of the role cognitive reflection may play in decision-making and provide supporting evidence of the potential for correcting detrimental misconceptions of psychology as a science. Suggestions for future directions include focusing on the relationship between CRT-2 and PAS scores and having more than three CRT-like questions to allow for a more sensitive measure of analytical and intuitive responses.
Analysis of temperature profiles for investigating stream losses beneath ephemeral channels

Continuous estimates of streamflow are challenging in ephemeral channels. The extremely transient nature of ephemeral streamflows results in shifting channel geometry and degradation in the calibration of streamflow stations. Earlier work suggests that analysis of streambed temperature profiles is a promising technique for estimating streamflow patterns in ephemeral channels. The present work provides a detailed examination of the basis for using heat as a tracer of stream/groundwater exchanges, followed by a description of an appropriate heat and water transport simulation code for ephemeral channels, as well as discussion of several types of temperature analysis techniques to determine streambed percolation rates. Temperature‐based percolation rates for three ephemeral stream sites are compared with available surface water estimates of channel loss for these sites. These results are combined with published results to develop conclusions regarding the accuracy of using vertical temperature profiles in estimating channel losses. Comparisons of temperature‐based streambed percolation rates with surface water‐based channel losses indicate that percolation rates represented 30% to 50% of the total channel loss. The difference is reasonable since channel losses include both vertical and nonvertical component of channel loss as well as potential evapotranspiration losses. The most significant advantage of the use of sediment‐temperature profiles is their robust and continuous nature, leading to a long‐term record of the timing and duration of channel losses and continuous estimates of streambed percolation. The primary disadvantage is that temperature profiles represent the continuous percolation rate at a single point in an ephemeral channel rather than an average seepage loss from the entire channel.
Machine learning based churn prediction in telecom

In the new era of continuous social development, the level of information technology service construction is also increasing, among which the telecommunications service industry has also developed into a relatively large business cluster under this trend. Due to fierce commercial competition, telecommunication companies also face the problem of losing customers. Asking telecom companies to determine the trend of customer churn from the huge amount of customer information data has become a challenge for all telecom companies to solve. This paper takes a telecom company as a reference, using a large amount of subscriber data from it as a research sample, and uses data mining machine learning and other techniques to make churn predictions on customer data, using three classification methods to evaluate the prediction results and help telecom service providers analyze the causes of customer churn. Firstly, the situation faced by the telecom service company is discussed in terms of the relevant background, then by presenting and analyzing the customer data, and finally by using Logical Regression, Mission Tree, and SVM classification models for classification and evaluation, the causes associated with customer churn are summarized, then the methods of customer churn retention are outlined, and the factors associated with customer churn are listed. The factors associated with churn are listed. This provides a reference for an in-depth study of the theoretical approach and application of customer churn.
Categorizing the morphologic variability of siliciclastic passive continental margins

The basic morphology of the continental shelf, slope, and rise on passive continental margins has many variations in the modern ocean environment. Through using a satellite-derived bathymetric data set of the global ocean, we have developed a classification for the shape of modern, siliciclastic-dominated, passive margins. The classification subdivides 50 margins into five distinct shape categories based on each margin's pattern of sea-floor slopes as a function of depth. By comparing these shape categories with the underlying stratal architecture, sediment input, and present degree of canyon incision of the margins, we find apparent correlations between these factors and basic margin shape. In general, gently sloped margins tend to occur in regions with high sediment input, few modern canyons, and unstable substrates. Higher gradient margins tend to have lower sediment input, more modern canyons, and a variety of subsurface architectures. These results suggest two important conclusions: (1) morphology differences among modern siliciclastic passive margins can be objectively and systematically categorized, and (2) these shape differences seem to be related to aspects of the modern sedimentary environment despite the fact that the margins have evolved over geologic time.
Punctuation Prediction for Polish Texts Using Transformers

Speech recognition systems typically output text lacking punctuation. However, punctuation is crucial for written text comprehension. To tackle this problem, Punctuation Prediction models are developed. This paper describes a solution for Poleval 2022 Task 1: Punctuation Prediction for Polish Texts, which scores 71.44 Weighted F1. The method utilizes a single HerBERT model finetuned to the competition data and an external dataset.
CovAmCoh-analysis: a method to improve the interpretation of high resolution repeat pass SAR images of urban areas

The main advantages of SAR (Synthetic Aperture Radar) are the availability of data under nearly all weather conditions and its independence from natural illumination. Data can be gathered on demand and exploited to extract the needed information. However, due to the side looking imaging geometry, SAR images are difficult to interpret and there is a need for support of human interpreters by image analysis algorithms. In this paper a method is described to improve and to simplify the interpretation of high resolution repeat pass SAR images. Modern spaceborne SAR sensors provide imagery with high spatial resolution and the same imaging geometry in an equidistant time interval. These repeat pass orbits are e. g. used for interferometric evaluation. The information contained in a repeat pass image pair is visualized by the introduced method so that some basic features can be directly extracted from a color representation of three deduced features. The CoV (Coefficient of Variation), the amplitude and the coherence are calculated and jointly evaluated. The combined evaluation of these features can be used to identify regions dominated by volume scatterers (e. g. leafed vegetation), rough surfaces (e. g. grass, gravel) and smooth surfaces (e. g. streets, parking lots). Additionally the coherence between the two images includes information about changes between the acquisitions. The potential of the CovAmCoh- Analysis is demonstrated and discussed by the evaluation of a TerraSAR-X image pair of the Frankfurt airport. The method shows a simple way to improve the intuitive interpretation by the human interpreter and it is used to improve the classification of some basic urban features.
Origin of spinel-rich chondrules and inclusions in carbonaceous and ordinary chondrites

Our evaluation of three models of the origin of spinel-rich chondrules and inclusions includes new calculations of the major element refractory mineral condensation sequence from a gas of solar composition over a wide pressure interval. Our condensation calculations show that spinel-rich chondrules did not crystallize from metastable liquid condensates, and that spinel-rich inclusions are not aggregates of refractory nebular condensates. We propose that spinel-rich objects are fractionated distillation residues of small aggregates of primitive dust that lost Ca, Si-rich partial melts by evaporation, ablation, or splashing during collisions. This model also explains why spinel-rich chondrules and inclusions: (1) are usually smaller than melilite-rich chondrules and inclusions; (2) often have highly fractionated trace-element compositions; and (3) usually do not contain Pt-metal nuggets even when they are more enriched in the Pt-group metals than nugget-bearing melilite rich objects.