Miracle-dz/UniFAR-FTUs huggingface dataset:
Face recognition based on diagonal Discrete Cosine Transform and Two-Dimensional Principal Component Analysis.

Combined with Discrete Cosine Transform(DCT) and Two-Dimensional Principal Component Analysis(2DPCA),a novel method in face recognition was presented in this paper.Firstly,face image is turned into diagonal image,and dimension is reduced by DCT.Then image is reconstructed by IDCT.Secondly,2DPCA is used in feature extraction,and face recognition features are obtained.Finally,the Nearest Neighbor(NN) classifier is selected to perform face recognition.Experimental results on ORL(Olivetti Research Laboratory),damaged ORL and Yale face database show that the method is efficient in face recognition.
The Active Force Of The Myocardium

The myocardium is represented as a thick-walled cylinder contracting symmetrically. The concept of body force (force/unit volume of myocardium) is used for modelling the active force of the myocardium. The advantage of this approach is that it allows us to introduce explicitly the active force of the myocardium in the formalism describing the pressure-volume relation in the ventricles. Calculation of external work reserve, oxygen consumption and stress-strain analysis are discussed. Potential clinical application of the results is indicated.
Primary Central Nervous System Vasculitis: A Rare Cause of Stroke

Primary central nervous system vasculitis (PCNSV) is a rare cause of ischemic stroke and is considered idiopathic in most cases. PCNSV can present with a wide variety of neurological manifestations and should be considered in the differential diagnosis of ischemic stroke, particularly if the neurological deficit cannot be explained by the affected vascular area or when it is multifocal. The diagnosis of PCNSV is relevant because the required therapy differs from the treatments commonly used for frequent ischemic strokes. We report the case of a 64-year-old woman admitted for an ischemic stroke with a right frontal cortico-subcortical ischemic lesion. The etiological investigation documented multiple intracranial arterial stenoses. Secondary causes of central nervous system vasculitis were excluded. The patient refused a brain biopsy, and corticosteroid therapy was initiated due to high suspicion of PCNSV, supported by findings from transcranial Doppler ultrasound and brain magnetic resonance angiography. The patient had a positive clinical outcome and did not have any recurrences while under therapy. This case raises awareness of the importance of considering PCNSV in the differential diagnosis of ischemic stroke. It emphasizes the importance of promptly initiating therapy to minimize PCNSV-associated complications.
Enrichment of apricot probiotic drink with sea buckthorn as a prebiotic and antioxidant source

ABSTRACT Supplemented apricot probiotic drink (SAPD) was prepared with the addition of 2% lactobacillus rhamnosus and different percentages (2, 4, 8, 12%) of sea buckthorn powder, a total of five treatments were prepared To, T1, T2, T3, and T4 and stored at 4°C. The analysis of probiotic count was performed using total plate count and for the examination of antioxidant activity DPPH was done and total phenolic content was also conducted. Physiochemical, microbial (TPC), antioxidant (TPC, DPPH), and sensory evaluation of supplemented apricot probiotic drink were done at different storage periods (1, 14, and 28 days) and obtained data were subjected to the statistical design. There was a considerable change in total phenolic content (TPC) throughout storage in all treatments, but supplementation of sea buckthorn has increased the TPC and antioxidant activity of SAPD. The probiotic count of T2 showed the highest probiotics among all treatments with 6.70 log CFU/mL on the 1st day, 6.6 log CFU/mL on the 14th day, and 6.5 log CFU/mL on the 28th day. It was having 4% sea buckthorn followed by T1 having 6.56 log CFU/mL and T0 having 6.54 log CUF/mL of grand mean with little change during the storage period of 28 days. T3 and T4 showed decreased number of probiotic counts with an increase in the percentage of sea buckthorn. This research concluded that sea buckthorn can be supplemented in fruit drinks to provide probiotic and antioxidant benefits, but its increased ratio can reduce the overall acceptability of the drink.
Genetic algorithms in chemometrics and chemistry: a review

The use of genetic algorithms has been growing exponentially since Holland published the first papers about them. Thanks to the extraordinary increase in calculation power, nowadays it is possible to apply them to extremely complex problems. A considerable number of papers in which genetic algorithms have been applied have been published in several scientifical journals. This review is of course far from being a complete summary of the application of genetic algorithms to chemical problems; its goal is to show the reader the main fields of application of this technique, together with providing a list of references on the subject. Copyright © 2001 John Wiley & Sons, Ltd.
Resistance studies of overbank flow in rivers with sediment using the flood channel

Some large scale experiments concerning equilibrium sand channels with overbank flow are described. The experiments were undertaken in the UK Flood Channel Facility (FCF) configured into a straight compound channel with fixed banks, a mobile main channel composed of uniform sand with a d50 of around 0.8mm, and two symmetric floodplains. The main channel alluvial resistance changed with flow depth and discharge in a complex way arising from the effects of both bedforms and the floodplain/main channel interaction processes. Overall, zonal and local resistance coefficients for this type of channel are reviewed and the data discussed in relation to practical modelling of alluvial channels with overbank flow.
Sõnajärg, infostruktuur ja objekti kääne eesti keeles

Objekti kaane eesti keeles oleneb eelkoige tegevuse ja objekti piiritle- (ma)tusest, kuid da -infinitiiviga konstruktsioonides leidub palju varieerumist objekti kaandes, mida ei ole voimalik seletada piiritletuse moiste abil. Suur osa sellest varieerumisest on seotud sonajarjega: da -infinitiivile jargnev objekti on pigem totaalne, infinitiivile eelnev objekt on pigem partsiaalne. Artiklis vaadeldakse seoseid sonajarje ja objekti kaande vahel neljas sagedases da -infinitiiviga konstruktsioonis. Kuna eesti keele sonajarg soltub suuresti infostruktuurist, uuritakse, kas ja kuivord on sonajarjega seotud varieerumine seletatav infostruktuuriliste parameetrite abil. Joutakse jareldusele, et objekti kaande varieerumist ei mojuta mitte infostruktuur, vaid sonajarg ise. Artikli lopuosas arutletakse selle ule, miks voiks sonajarg uldse mojutada objekti kaanet ning miks selle moju piirdub infiniitsete konstruktsioonidega. Abstract. David Ogren: Word order, information structure and object case in Estonian. While object case in Estonian depends primarily on the boundedness of the action and the object nominal, numerous constructions with da -infinitive verb forms exhibit object case variation that cannot be explained by the boundedness criterion. A considerable amount of this variation is related to word order: VO word order in the da -infinitive phrase favors the use of the total object, OV word order favors the partial object. The article examines the relationship between word order and object case in four common da -infinitive constructions. As word order in Estonian is heavily dependent on information structure, the article also investigates whether the relationship between word order and object case can be explained by information-structural features, and finds that the relevant parameter is in fact not information structure, but rather word order itself. The article closes with a discussion of the possible explanations for the relationship between word order and object case and for why this relationship is found only in non-finite constructions. Keywords : object case, da -infinitive, information structure, word order, variation, analogy
Maternal Serum Amyloid A as a Marker of Preterm Birth/PROM: A Systematic Review and Meta-Analysis

Background and Objectives: Preterm birth, one of the leading causes of neonatal mortality, occurs in between 5 and 18% of births. Premature birth can be induced by a variety of triggers, including infection or inflammation. Serum amyloid A, a family of apolipoproteins, increases significantly and rapidly at the onset of inflammation. This study aims to systematically review the results of studies in the literature that have examined the correlation between SAA and PTB/PROM. Materials and Methods: To examine the correlation between serum amyloid A levels in women who gave birth prematurely, a systematic analysis was performed according to PRISMA guidelines. Studies were retrieved by searching the electronic databases PubMed and Google Scholar. The primary outcome measure was the standardized mean difference in serum amyloid A level comparing the preterm birth or premature rupture of membranes groups and the term birth group. Results: Based on the inclusion criteria, a total of 5 manuscripts adequately addressed the desired outcome and were thus included in the analysis. All included studies showed a statistically significant difference in serum SAA levels between the preterm birth or preterm rupture of membranes groups and the term birth group. The pooled effect, according to the random effects model, is SMD = 2.70. However, the effect is not significant (p = 0.097). In addition, the analysis reveals an increased heterogeneity with an I2 = 96%. Further, the analysis of the influence on heterogeneity found a study that has a significant influence on heterogeneity. However, even after outline exclusion, heterogeneity remained high I2 = 90.7%. Conclusions: There is an association between increased levels of SAA and preterm birth/PROM, but studies have shown great heterogeneity.
The Impact and Benefits of the Independent Curriculum Learning Independent Campus during Online Learning in the COVID-19 Period

The research aims to determine the form of readiness in implementing the Merdeka Campus Curriculum. Many difficulties were experienced by students when learning online, namely 85.71% had difficulty understanding the concepts and 14% the principles used. This fact does not stand alone. The results of a survey of 120 students showed that 90% of the educators had difficulty implementing the material. There are 8 implementation programs at State Universities and Private Universities in Indonesia that are being implemented. This aims to involve students and lecturers in collaborating with schools and industry online and face to face. However, it is not yet known the impact on the positive. The method used in this study is descriptive qualitative with a constructivist paradigm. Data collection techniques by way of observation, interviews and distribution of instruments. The object is the university that organizes it and the subject is students and lecturers. The results of the study show that the implementation still varies because there are study programs that have implemented it and some that have not, because there are still obstacles, both internal and external. Universities need to provide adequate facilities, infrastructure and applications to implement the program. The Study Program also needs to prepare qualified lecturers in handling the courses offered. The conclusion in the research needs to be increased and active activities in each Study Program
A formal concept view of argumentation

The paper presents a parallel between two important theories for the treatment of information which address questions that are apparently unrelated and that are studied by different research communities: an enriched view of formal concept analysis and abstract argumentation. Both theories exploit a binary relation (expressing object-property links, attacks between arguments). We show that when an argumentation framework rather considers the complementary relation does not attack, then its stable extensions can be seen as the exact counterparts of formal concepts. This leads to a cube of oppositions, a generalization of the well-known square of oppositions, between eight remarkable sets of arguments. This provides a richer view for argumentation in cases of bi-valued attack relations and fuzzy ones.
Computed Tomography-Assisted Study of the Liquid Contrast Agent’s Spread in a Hydrogel Phantom of the Brain Tissue

Studying transport processes in the brain’s extracellular space is a complicated problem when considering the brain’s tissue. Tests of corresponding physical and mathematical problems, as well as the need for materials with cheap but realistic properties to allow for testing of drug delivery systems, lead to the development of artificial phantom media, one kind of which is explored in this work. We report results from quantifying the spread of a standard contrast agent used in clinical computed tomography, Iopromide, in samples of collagen-based hydrogels. Its pure variant as well as samples supplied with lipid and surfactant additives were explored. By comparing to solutions of the diffusion equation which reproduce these data, the respective diffusion coefficients were determined. It was shown that they are relevant to the range typical for living tissue, grow with elevation in the lipid content and diminish with growth in surfactant concentration.
Mobile Robot Path Planning Based on Cellular Automata

In order to solve the existence question of the global optimal path planning for mobile robots,one kind of the path planning algorithm was proposed based on the cellular automaton.Firstly,the mobile robot space environment was established,mobile robot start,end,obstacles and free path was defined as a set of discrete cellular.Secondly,a cellular state evolution a rule was designed,the optimal path search method was determined according to the evolution of cellular state.Finally,the simulation experiments showed that the algorithm could be effective for path planning in the simple and complex environment.The algorithm was simple,fast,high and efficiency.
On-Demand Anonymous Access and Roaming Authentication Protocols for 6G Satellite–Ground Integrated Networks

Satellite–ground integrated networks (SGIN) are in line with 6th generation wireless network technology (6G) requirements. However, security and privacy issues are challenging with heterogeneous networks. Specifically, although 5G authentication and key agreement (AKA) protects terminal anonymity, privacy preserving authentication protocols are still important in satellite networks. Meanwhile, 6G will have a large number of nodes with low energy consumption. The balance between security and performance needs to be investigated. Furthermore, 6G networks will likely belong to different operators. How to optimize the repeated authentication during roaming between different networks is also a key issue. To address these challenges, on-demand anonymous access and novel roaming authentication protocols are presented in this paper. Ordinary nodes implement unlinkable authentication by adopting a bilinear pairing-based short group signature algorithm. When low-energy nodes achieve fast authentication by utilizing the proposed lightweight batch authentication protocol, which can protect malicious nodes from DoS attacks. An efficient cross-domain roaming authentication protocol, which allows terminals to quickly connect to different operator networks, is designed to reduce the authentication delay. The security of our scheme is verified through formal and informal security analysis. Finally, the performance analysis results show that our scheme is feasible.
Intrapartum Cesarean Section and Perinatal Outcomes after Epidural Analgesia or Remifentanil-PCA in Breech and Twin Deliveries

Comparative data on the potential impact of various forms of labor analgesia on the mode of delivery and neonatal complications in vaginal deliveries of singleton breech and twin fetuses are lacking. The present study aimed to determine the associations between type of labor analgesia (epidural analgesia (EA) vs. remifentanil patient-controlled analgesia (PCA)) and intrapartum cesarean sections (CS), and maternal and neonatal adverse outcomes in breech and twin vaginal births. A retrospective analysis of planned vaginal breech and twin deliveries at the Department of Perinatology, University Medical Centre Ljubljana, was performed for the period 2013–2021, using data obtained from the Slovenian National Perinatal Information System. The pre-specified outcomes studied were the rates of CS in labor, postpartum hemorrhage, obstetric anal sphincter injury (OASI), an Apgar score of <7 at 5 min after birth, birth asphyxia, and neonatal intensive care admission. A total of 371 deliveries were analyzed, including 127 term breech and 244 twin births. There were no statistically significant nor clinically relevant differences between the EA and remifentanil-PCA groups in any of the outcomes studied. Our findings suggest that both EA and remifentanil-PCA are safe and comparable in terms of labor outcomes in singleton breech and twin deliveries.
Gross efficiency is improved in standing position with an increase of the power output

Background: Gross efficiency (GE) has been shown to be one of the most relevant parameter influencing cycling performance but to the best of our knowledge, just one study focused on measuring GE in seated and standing positions during field conditions (Millet et al., 2002: Medicine & Science in Sports & Exercise, 34(10), 1645-52). Other authors investigated the effects of change in body position (seated vs. standing) on energy expenditure, heart rate (HR) or pulmonary ventilation (VE) but there were large changes in the results (Ryschon & Stray-Gundersen, 1991: Medicine & Science in Sports & Exercise, 23, 949-953; Swain & Wilcox, 1992: Medicine & Science in Sports & Exercise, 24, 1123-1127) due to the different protocols. Indeed, the cross effect of slope and intensity on GE in standing compared to seated position has not been studied. Thus, we found interesting to measure GE in real locomotion with elite cyclists at different intensities and slopes. Purpose: This study was designed to examine the effects of standing position on GE compared to seated position at different intensities and slopes. Methods: After a period of familiarisation, 13 elite participants performed on a motorised treadmill with their own bike one session during which they rode in a randomized order seated vs. standing positions with several slopes (5, 7.5 and 10%) and intensities (3.8, 4.2 and 4.6 W.kg-1). GE was calculated for each condition using the ratio of power output (PO) measured with a Powertap G3 hub (CycleOps, Madison, USA) and the oxygen uptake (VO2) measured with a portable gas analyzer (Metamax 3B, Cortex, Leipzig, Germany). Results: GE was significantly higher (+4.5%) in standing position (21.5 Â± 5.2 %, CV = 5.2%) compared to seated position (20.6 Â± 1.1 %, CV = 5.5%) for all the intensities and slopes. This improvement was due to a significant (p < 0.001) increase of PO in standing position (+4.5%) associated with a stabilization of VO2. The more the slope was low and the intensity was high, the more the pedaling cadence was high. That leads to higher PO changes between standing and seated positions (R = 0.93, p < 0.001) (Figure 1). Discussion: The main finding of this study shows that in standing position, GE was increased from a higher PO. The non-significant increase in VO2 is in accordance with the previous results of Millet et al. (2002). It's the first time that a study shows an increase in PO in standing position. The difference in PO is linked to an increase of the pedaling cadence. We hypothesize that the increase in PO is due to the technique adopted in standing position, the latter has an impact on the mechanical deformation both of the tires and the bike frame. The loss of energy in the bike and the tires would require to increase the PO in standing position according to the technique of each cyclist. Conclusion: Despite a significant decrease of GE, the standing position involves a significant increase in PO probably due to an increase of the deformation of both the tires and the bike frame according to the pedaling techniques of the cyclist.
A beta inflated mean regression model for fractional response variables

ABSTRACT This article proposes a new regression model for a dependent fractional random variable on the interval that takes with positive probability the extreme values 0 or 1. Our model relates the expected value of this variable with a linear predictor through a special parametrization that let the parameters free in the parameter space. A simulation-based study and an application to capital structure choices were conducted to analyze the performance of the likelihood estimators in the model. The results show not only accurate estimations and a better fit than other traditional models but also a more straightforward and clear way to estimate the effects of a set of covariates over the mean of a fractional response.
An Evaluation of the Scale at which Ground-Surface Heat Flux Patchiness Affects the Convective Boundary Layer Using Large-Eddy Simulations

Abstract The effects on the convective boundary layer (CBL) of surface heterogeneities produced by surface sensible heat flux waves with different means, amplitudes, and wavelengths were investigated here. The major objective of this study was to evaluate at which scale surface heterogeneity starts to significantly affect the heat fluxes in the CBL. The large-eddy simulation option of the Regional Atmospheric Modeling System developed at Colorado State University was used for that purpose. Avissar et al. evaluated this model against observations and demonstrated its reliability. It appears that the impact of amplitude and wavelength of a heat wave is nonlinearly dependent upon the mean heating rate. The circulations (or rolls) resulting from surface heterogeneity are strong when the amplitude and the wavelength of the heat wave are large, especially at low mean heating rate. In that case the profiles of horizontally averaged variables are quite strongly modified in the CBL. The potential temperature is no.
Internal variability of an energy-balance model with delayed albedo effects

Abstract We present a simple, deterministic energy-balance model with possible relevance to climatic variations on the time scale of glaciation cycles. The lag between ice-sheet extent and zonally-averaged temperature is modeled as a time delay in the ice-albedo feedback. The model exhibits self-sustained oscillations which are quasi-periodic or aperiodic in character. Fourier spectra of solutions have the features of many paleo-climatic records: peaks of variable height and width superimposed on a continuous, red-noise type background.
Effects of Cobra Cardiotoxins on Intracellular Calcium and the Contracture of Rat Cardiomyocytes Depend on Their Structural Types

Cardiotoxins (CaTx) of the three-finger toxin family are one of the main components of cobra venoms. Depending on the structure of the N-terminal or the central polypeptide loop, they are classified into either group I and II or P- and S-types, respectively, and toxins of different groups or types interact with lipid membranes variably. While their main target in the organism is the cardiovascular system, there is no data on the effects of CaTxs from different groups or types on cardiomyocytes. To evaluate these effects, a fluorescence measurement of intracellular Ca2+ concentration and an assessment of the rat cardiomyocytes’ shape were used. The obtained results showed that CaTxs of group I containing two adjacent proline residues in the N-terminal loop were less toxic to cardiomyocytes than group II toxins and that CaTxs of S-type were less active than P-type ones. The highest activity was observed for Naja oxiana cobra cardiotoxin 2, which is of P-type and belongs to group II. For the first time, the effects of CaTxs of different groups and types on the cardiomyocytes were studied, and the data obtained showed that the CaTx toxicity to cardiomyocytes depends on the structures both of the N-terminal and central polypeptide loops.