bluuebunny/crossref_metadata_2025 huggingface dataset:
Cross-sectional analysis: clinical presentation of children with persistently low ALP levels
Authors: Semler Oliver , Partsch Carl-Joachim , Das Anibh Martin , Prechtl Andreas , Grasemann Corinna
Published: August 2021

Objectives

Low activity of serum alkaline phosphatase (ALP) is a hallmark of hypophosphatasia (HPP), but low readings of ALP are not always recognized in clinical routine. Understanding the clinical presentations associated with low ALP may contribute to a timelier diagnosis of HPP.

Methods

Data from paediatric patients with low ALP, excluding patients in intensive care and with oncological/haematological disorders, were analysed. Most recent ALP values, previous diagnoses, medication and relevant symptoms were extracted from patient records at nine specialised centres and analysed descriptively. A relationship between body height and ALP values was scrutinised by linear regression.

Results

Of 370 children, 15 (4.1%) had a diagnosis of HPP. In the subgroup without a diagnosis of HPP, 241 (67.9%) out of 355 patients had one or more medical conditions known to be associated with low serum ALP. Of those, hypothyroidism, malnutrition and steroid administration were most frequent. Characteristic symptoms, particularly, short stature, muscle weakness and delay of motor development were more frequent and ALP values were lower in patients with documented HPP diagnosis compared to patients without diagnosis of HPP (Ø z-scores: −2.52) (interquartile range [IQR] = 0.20) vs. −1.96 (IQR = 0.87). A weak positive linear relationship between z-scores of ALP and body height was identified (p<0.001).

Conclusions

This analysis of paediatric patient records elucidates a wide range of disorders associated with low ALP activity. In case of additional specific symptoms, HPP should always be considered as a differential diagnosis.
Existence of renormalized solutions for some quasilinear elliptic Neumann problems
Authors: Benboubker Mohamed Badr , Hjiaj Hassane , Ibrango Idrissa , Ouaro Stanislas
Published: August 2021

This paper is devoted to study some nonlinear elliptic Neumann equations of the type{Au+g(x,u,∇u)+|u|q(⋅)-2u=f(x,u,∇u)inΩ,∑i=1Nai(x,u,∇u)⋅ni=0on∂Ω,\left\{ {\matrix{ {Au + g(x,u,\nabla u) + |u{|^{q( \cdot ) - 2}}u = f(x,u,\nabla u)} \hfill & {{\rm{in}}} \hfill & {\Omega ,} \hfill \cr {\sum\limits_{i = 1}^N {{a_i}(x,u,\nabla u) \cdot {n_i} = 0} } \hfill & {{\rm{on}}} \hfill & {\partial \Omega ,} \hfill \cr } } \right.in the anisotropic variable exponent Sobolev spaces, whereAis a Leray-Lions operator andg(x,u, ∇u),f(x,u, ∇u) are two Carathéodory functions that verify some growth conditions. We prove the existence of renormalized solutions for our strongly nonlinear elliptic Neumann problem.
The process of magnetic flux penetration into superconductors
Authors: Abdurazzakovich Taylanov Nizom , Xursand Bekmirzaeva , Nurmamatovich Urozov Abduxolik , Zilola Igamqulova
Published: August 2021

In the present paper the magnetic flux penetration dynamics of type-II superconductors in the flux creep regime is studied by analytically solving the nonlinear diffusion equation for the magnetic flux induction, assuming that an applied field parallel to the surface of the sample and using a power-law dependence of the differential resistivity on the magnetic field induction. An exact solution of nonlinear diffusion equation for the magnetic induction B(r, t) is obtained by using a well-known self-similar technique. We study the problem in the framework of a macroscopic approach, in which all length scales are larger than the flux-line spacing; thus, the superconductor is considered as a uniform medium.
Aging Resistances Evaluation of Multi-dimensional Nanomaterials Modified Asphalt by Characterizing Binders Recovered from Aged Asphalt Mixtures
Authors: Huang Hongming , Chen Zihao , Li Juechi , Wang Junzhuo , Ding Siyin , Zhang Henglong , Wu Chaofan
Published: August 2021

In terms of the aging susceptibility of asphalt, the multi-dimensional nanomaterials (MDNMs) have been developed to improve the aging resistance of asphalt. In comparison with most of previous studies that are only based on asphalt binder aging simulation methods to evaluate anti-aging properties of MDNMs modified asphalt, aging resistances of MDNM-modified asphalt were evaluated in this research by extracting and recovering binders from their aged asphalt mixtures and then characterizing the aging degree of the extracted binders in terms of physical, rheological, and chemical properties. Organic expanded vermiculite (OEVMT) and nanoparticles (nano zinc oxide [ZnO], nano titanium dioxide [TiO2], and nano silica [SiO2]) were chosen to compose three kinds of MDNMs. And six types of aging patterns (including mixing aging [MA], short-term aging [STA], compacted and loose long-term aging [CLTA and LLTA], and compacted and loose ultraviolet (UV) aging [CUVA and LUVA]) for asphalt mixtures were conducted. The results indicate that the ranking of aging degree for the six types of aging patterns is LUVA > LLTA > CUVA > CLTA > STA > MA. Regardless of the types of asphalt mixture aging patterns, the aging resistances of extracted MDNM-modified asphalt binders are all better than extracted pure asphalt binder, and the composite form of OEVMT combined with ZnO presents more significant improvements on asphalt aging resistance than the other two composite forms (OEVMT + SiO2 and OEVMT + TiO2).
Dynamic Properties of Biopolymer-Treated Loose Silty Sand Evaluated by Cyclic Triaxial Test
Authors: Smitha S. , Rangaswamy K.
Published: August 2021

Improvement in certain soil properties because of biopolymer treatment has been found to imply that it could help in liquefaction mitigation. In this study, the effect of confining pressure on cyclic strength properties of agar biopolymer treated and untreated silty sand has been explored so that their behavior at varying depths, subjected to varying overburden stress, could be known. The agar-treated and untreated soils subjected to effective confining stresses of 100, 150, and 200 kPa were tested under consolidated undrained, strain-controlled cyclic triaxial loading, keeping the other parameters constant. The pore water pressure response, stress-path behavior, and effect on dynamic soil parameters were studied. The excess pore pressure and secant shear modulus were found to increase with the increase in confining pressure, whereas there wasn’t much of an effect on damping characteristics. The confining pressure had a positive effect on treated soil subjected to cyclic loading in terms of strength and stiffness because of the densification caused from confinement. In addition, durability characteristics of the treated soil were evaluated by cyclic wetting and drying tests. The N2-Brunauer-Emmett-Teller surface area test revealed that the surface area and pore volume decreased upon treatment, the results of which were supported by scanning electron microscopy images also.
Plasticity-Based Method for the Design and Analysis of Cold Recycled Pavement Layers
Authors: Preti Francesco , Dave Eshan V. , Romeo Elena , Tebaldi Gabriele , Sias Jo E.
Published: August 2021

Asphalt cold recycling technologies allow the use of up to 100 % reclaimed asphalt pavement (RAP) from an existing asphalt pavement to construct new base layers and new subbase layers. Bituminous stabilized materials (BSM), obtained from cold recycling technologies, are susceptible to traffic-induced accumulation of permanent deformation. In the current design methods, BSM pavement layers are typically assumed to have a linear elastic response under traffic loading application, and this does not account for plasticity initiation and accumulation in the material. This research study provides insight on how to integrate plasticity behavior in numerical simulations of rehabilitated pavement structures with BSM. A BSM mixture prepared with 1.5 % cement by weight of total mixture and 1.5 % foamed asphalt binder content by weight of dry aggregates is characterized in the laboratory. Subsequently, a three-dimensional elastic-perfectly plastic finite element model is developed for the simulation of triaxial shear strength tests. Lab measured force-displacement curves are matched with the numerical simulations at different confining pressures. The calibrated mechanical properties are then used as input parameters in multilayer pavement models for pavement evaluation. Different pavement structures with and without BSM layers are compared in terms of a maximum allowable number of loading repetitions before reaching a 20-mm rut depth on the surface of the pavement. The results indicate that structures with BSM and traditional granular base layers yield comparable results in terms of rutting potential. In addition, the study presents a framework for the design and analysis of cold recycled pavement layers and a method to integrate the plasticity behavior of partially-bonded and unbounded layers for pavement evaluation.
Characteristics and Predictors of Educational and Occupational Disengagement Among Outpatient Youth With Borderline Personality Disorder
Authors: Juurlink Trees T. , Betts Jennifer K. , Nicol Katie , Lamers Femke , Beekman Aartjan T. F. , Cotton Sue M. , Chanen Andrew M.
Published: August 2021

This study aimed to investigate predictors of vocational disengagement (referred to as Not in Employment, Education, or Training [NEET]) in young people with borderline personality disorder (BPD). The sample comprised 112 outpatients with a BPD diagnosis, aged 15–25 years, who participated in a randomized controlled trial (ANZCTR12610000100099). The proportion of participants who were NEET (39.3%) at study entry did not improve after 18 months and NEET status frequently changed. Therefore, multinomial regression analyses were used to study three groups: Non-NEET, NEET, and Unstable NEET status. NEET status was predicted by not achieving expected age-appropriate educational milestones, greater instability in identity, and emptiness. Greater instability in interpersonal relationships and identity predicted Unstable NEET status. The findings suggest that specific vocational interventions, that also incorporate a focus on interpersonal functioning, emptiness, and identity disturbance, are needed to improve functioning in youth with BPD, especially when educational milestones are not achieved.
Decoding Object-Based Auditory Attention from Source-Reconstructed MEG Alpha Oscillations
Authors: de Vries Ingmar E. J. , Marinato Giorgio , Baldauf Daniel
Published: August 2021

How do we attend to relevant auditory information in complex naturalistic scenes? Much research has focused on detecting which information is attended, without regarding underlying top-down control mechanisms. Studies investigating attentional control generally manipulate and cue specific features in simple stimuli. However, in naturalistic scenes it is impossible to dissociate relevant from irrelevant information based on low-level features. Instead, the brain has to parse and select auditory objects of interest. The neural underpinnings of object-based auditory attention remain not well understood. Here we recorded MEG while 15 healthy human subjects (9 female) prepared for the repetition of an auditory object presented in one of two overlapping naturalistic auditory streams. The stream containing the repetition was prospectively cued with 70% validity. Crucially, this task could not be solved by attending low-level features, but only by processing the objects fully. We trained a linear classifier on the cortical distribution of source-reconstructed oscillatory activity to distinguish which auditory stream was attended. We could successfully classify the attended stream from alpha (8–14 Hz) activity in anticipation of repetition onset. Importantly, attention could only be classified from trials in which subjects subsequently detected the repetition, but not from miss trials. Behavioral relevance was further supported by a correlation between classification accuracy and detection performance. Decodability was not sustained throughout stimulus presentation, but peaked shortly before repetition onset, suggesting that attention acted transiently according to temporal expectations. We thus demonstrate anticipatory alpha oscillations to underlie top-down control of object-based auditory attention in complex naturalistic scenes.

SIGNIFICANCE STATEMENTIn everyday life, we often find ourselves bombarded with auditory information, from which we need to select what is relevant to our current goals. Previous research has highlighted how we attend to specific highly controlled aspects of the auditory input. Although invaluable, it is still unclear how this relates to attentional control in naturalistic auditory scenes. Here we used the high precision of magnetoencephalography in space and time to investigate the brain mechanisms underlying top-down control of object-based attention in ecologically valid sound scenes. We show that rhythmic activity in auditory association cortex at a frequency of ∼10 Hz (alpha waves) controls attention to currently relevant segments within the auditory scene and predicts whether these segments are subsequently detected.
Reseña del libro "El nuevo sistema del derecho de asilo y de la protección subsidiaria"
Authors: Uchôa de Lima Adolff
Published: August 2021

En este trabajo se hace una reseña del libro "El nuevo sistema del derecho de asilo y de la protección subsidiaria" del profesor Djamil Tony Kahale Carrillo.
Influence of weathering on surface roughness of thermally modified wood
Authors: Keržič Eli , Lesar Boštjan , Humar Miha
Published: August 2021

Wood is one of the most important building materials. Thermally modified wood is entering the market and replacing wood preservatives and tropical wood species in some applications. Thermally modified wood is exposed to weathering similarly as other wood-based building materials. It has been reported that if thermally modified wood is exposed to weathering, its moisture performance might decrease fairly fast. Moisture performance reflects the material’s ability to remain dry and dry out fast when wet. The aim of this study was to determine whether this phenomenon is associated with crack formation or roughness. Norway spruce, thermally modified spruce, wax-treated thermally modified spruce, and European larch heartwood samples were exposed to artificial accelerated weathering and natural weathering for 9, 18, and 27 months. Samples were subsequently isolated, and their roughness was determined with a confocal laser scanning microscope on axial and longitudinal surfaces at 10× and 50× magnification. After weathering, roughness increased on both axial and longitudinal surfaces. This was evident from the profile 2D measurements (Ra) and surface 3D measurements (Sa). The effect of natural weathering on roughness was higher than artificial accelerated weathering, presumably due to synergistic effects of abiotic and biotic factors. This may be associated with Wenzel’s theory on the influence of roughness on the contact angles of water on the surface; namely, increased roughness will decrease the contact angle on hydrophilic surfaces.
Evaluation of heat treatment parameters’ effect on some physical and mechanical properties of poplar wood with multi-criteria decision making techniques
Authors: Kaymakci Alperen , Bayram Bahadır Çağrı
Published: August 2021

Effects of the heat treatment parameters were evaluated relative to some physical and mechanical properties of poplar wood (Populus alba L.) with use of two of the prominent multi criteria decision-making (MCDM) techniques: Entropy and The Technique for Order Preference by Similarity to Ideal Solution (TOPSIS). To meet this objective, the test samples were heat-treated at 120, 150, 180, and 210 °C for 2 and 4 h in a laboratory-scale oven. With increasing temperature and duration, the shrinkage and swelling ratios of heat-treated samples were improved. However, the bending strength, modulus of elasticity, and compression strength generally decreased with increasing process temperature and duration. According to (MCDM) analyses, thermal modification definitely improved the physical properties of wood up to a point. Bending strength was found to be the most important determinant of heat treatment success. The other determinants were identified as swelling, compression strength, shrinkage, and modulus of elasticity, respectively. Also, the best results were obtained at 120 °C for 2 h. In general, heat treatment above 150 °C or 4 h is not recommended.
Variation in the nutrient contents of leaves, bark, and wood of Persian oak trees (Quercus brantii) affected by decline
Authors: Mohammadzadeh Hamdeih , Mirzaei Javad , Farashiyani Mohammad E. , Soheili Forough , Woodward Stephen , Abdul-Hamid Hazandy , Naji Hamid R.
Published: August 2021

Tree decline is a physiological phenomenon resulting from climatic disturbances that involves damage to forest ecosystems. This study examined the effects of tree decline on nutrient concentrations in the leaves, bark, and wood of Persian oak (Quercus brantii) trees. Trees were categorized by decline severity (healthy, slight, moderate, and severe decline). Leaves were collected from the middle and outer parts of the crowns. Bark and wood samples were taken at breast height (1.3 m). The contents of Mg, Ca, P, Fe, K, and Na were analyzed by atomic absorption spectrophotometry and flame photometry. As decline severity increased, the concentrations of Mg, Ca, P, Fe, K, and Na in the foliage increased. However, the P and K in the bark and the P in the wood were lower in trees in the higher decline classes. Moreover, nutrient contents in the tissues examined varied across the different decline severities. The variations may have been due to defense mechanisms of the trees enhancing tolerance against induced stress. The results suggested that nutrient stoichiometry can reflect uptake in forest ecosystems and plant-environmental stress relationships.
Small-size jatropha seed biochar extracted from microwave pyrolysis: Optimization of its biocomposites mechanical properties by mixture design
Authors: Nyuk Khui Perry Law , Rahman Md. Rezaur , Kuok Kuok King , Bin Bakri Muhammad Khusairy , Adamu Muhammad , Tazeddinova Diana , Kazhmukanbetkyzy Zhumayeva A. , Torebek Baibatyrov
Published: August 2021

Microwave pyrolysis of finely ground jatropha seed biochar was used as bio-filler to develop biocomposites. Effects influencing the mechanical properties of the biocomposites were investigated based on varied material ratio. Ratios by percentage of weight were determined by D-optimal (custom) mixture design using the Stat Ease “Design Expert”. The mechanical properties, such as tensile strength, modulus of elasticity, and microhardness, were the dependent variables (response). Bio-filler content was optimised to attain the overall best mechanical properties for the biocomposites. The optimized biocomposite that showcased good tensile strength, modulus of elasticity, and microhardness biocomposite ratio’s predicted mechanical properties mean values were tensile strength (9.53 MPa), modulus of elasticity (0.730 GPa), and microhardness (20.4 HV) for polylactic acid and biofiller mixture; and tensile strength (7.92 MPa), modulus of elasticity (0.668 GPa), and microhardness (18.7 HV) for polylactic acid, biofiller, and poly(ethylene-alt-maleic anhydride) mixture. Models generated by the mixture design showcased some degree of noise and error present; however, the outcome through the optimization step was generally reliable for predicting the mechanical properties. Additional data gathered through experimental testing and replicates could improve the reliability of the model.
Pine wood modification via an antifungal oil – Heat treatment and its effect on annual wood rings
Authors: Düzkale Sözbir Gonca , Bektaş İbrahim , Kiliç Ak Ayşenur , Erkan Saniye
Published: August 2021

Thyme oil, which is an anti-fungicide, was used to increase the physical and mechanical properties of wood as well as improve its strength, especially in outdoor conditions. For this purpose, Stone pine (Pinus pinea L.) wood samples classified according to the annual number of rings were exposed to either the impregnation process or the combined process, which was comprised of impregnation followed by heat treatment. As a result of the study, it was determined that the wood had different physical and mechanical properties based upon the number of annual rings. In addition, it was specified that the thyme oil used in the impregnation process improved the physical properties of the wood and also reduced the water absorption during the combined process. As a general conclusion, the impregnation process and the combined process increased the mechanical properties of the wood in parallel with an increase in the number of annual rings. The process of impregnation of wood materials with thyme oil is promising due to its anti-fungal and antibacterial properties, its ability to be used in small amounts in on-site impregnation, and it being an environmentally friendly product for the wood protection industry.
Total content of polyphenols, flavonoids, rutin, and antioxidant activity of sea buckthorn juice
Authors: Kreps František , Tobolková Blanka , Ciesarová Zuzana , Potočňáková Marianna , Janotková Lívia , Schubertová Svetlana , Ház Aleš , Schmidt Štefan , Jablonský Michal
Published: August 2021

The antioxidant activity, total polyphenol content (TPC), and total flavonoids content (TFC) of sea buckthorn juice was analyzed with electron paramagnetic resonance (EPR) and ultraviolet-visible (UV-VIS) in ethanol, methanol, and acetone extracts. The choice of a suitable solvent system is necessary so as not to skew the results. Undiluted juice of sea buckthorn berries is not suitable for the mentioned analyzes. Sea buckthorn juices were evaporated under vacuum until completely dry and then dissolved in 100% methanol, 96% ethanol, 70% ethanol, and 50% acetone. The 70% ethanol extract of sea buckthorn juice had an average of 1.3- and 1.6-times greater TPC and TFC values than other extracts, respectively. The 70% ethanol extract of juice contained 29 mg gallic acid equivalents (GAE)/g dw and 4 mg catechin equivalents (CE)/g dw. The results of the antioxidant activity of the extracts determined by EPR spectroscopy had an error rate ~ 2.5 times lower than the UV-VIS analysis. The highest antioxidant activity (123 mmol of Trolox equivalents/kg extract) was determined with EPR and ABTS radical in the 70% ethanol extract. This method correlated well with the TFC levels.
Pine wood modification by heat treatment in air
Authors: Esteves Bruno M. , Domingos Idalina J. , Pereira Helena M.
Published: August 2021

Maritime pine (Pinus pinaster) wood has low dimensional stability and durability. Heat treatment was made in an oven using hot air during 2 to 24 h and at 170-200 ºC. A comparison was made against steam heat treatment. The equilibrium moisture content and the dimensional stability (ASE) in radial and tangential directions were evaluated at 35%, 65%, and 85% relative humidity. MOE, bending strength and wettability were also determined. At the same mass loss, improvements of equilibrium moisture content and dimensional stability were higher for oven heat treatment, but the same was true for mechanical strength degradation. A 50% decrease in hemicellulose content led to a similar decrease in bending strength.
Evaluación del nivel de satisfacción del estudiante respecto al servicio educativo bajo el enfoque del modelo HEdPERF en las universidades públicas que integran la Alianza Estratégica de la Universidad Peruana y que implementaron el mecanismo de licenciamiento
Authors: Alvarez Tay Rosa Carolina
Published: August 2021

El presente artículo tuvo como objetivo establecer el nivel de influencia del modelo HEdPERF (Higher Education Performance) en la satisfacción de los estudiantes, establecer el grado de influencia de cada una de las seis dimensiones que componen el Modelo HEdPERF en la satisfacción de los estudiantes y determinar cuál o cuáles de las seis dimensiones evaluadas del Modelo HEdPERF presentaban un nivel adecuado de la calidad percibida. La muestra del estudio estuvo comprendida por 1191 estudiantes pertenecientes a las tres universidades públicas socias de la Alianza Estratégica de la Universidad Peruana. La investigación empleó el diseño no experimental de nivel correlacional, y para el análisis de los datos se utilizaron las pruebas estadísticas no paramétricas, tales como la prueba de chi cuadrado, la prueba de correlación de Spearman y la prueba de signos de Wilcoxon.
Implementación de la metodología TPM-Lean Manufacturing para mejorar la eficiencia general de los equipos (OEE) en la producción de repuestos en una empresa metalmecánica
Authors: Canahua Apaza Nohemy Miriam
Published: August 2021

El presente artículo pretende demostrar la factibilidad de la aplicación de la metodología TPM-Lean Manufacturing en las pymes fabricantes de piezas metalmecánicas, ya que existe un crecimiento en la demanda, visible en el sector, que no puede ser aprovechado por sus bajos valores de eficiencia general de los equipos (OEE, por sus siglas en inglés). Se desea contribuir al mejor conocimiento de la técnica de aplicación con el fin de reducir desperdicios en las industrias de procesos para que, a través de un análisis de sus datos de producción, se identifiquen los problemas que les impiden ser eficientes y mediante la selección, desarrollo e implementación de las técnicas de la metodología Lean Manufacturing se consiga orientar a las pymes a realizar acciones de mejora en sus sistemas productivos a un bajo costo.
Clinical effects of atopical twin-serum (aqua phase and lipo phase) on skin radiance and wrinkle depth: role of active ingredients and delivery optimisation
Authors: Fanian Ferial
Published: August 2021

ntroduction: Skin appearance plays as an important moderator in human daily social interactions so everyday we see new and innovative solutions to fight the signs of aging. One of the important parameters of skin appearance is skin complexion radiance as it could Reflect the general health, emotional State, hormonal status, nutrition, fatigue, age or environmental factors such as smoking, drinking, seasons, etc. Objective: The objective of the study was to evaluate the effect of the daily application of a bi-phasic serum during 8 weeks on the skin radiance and skin aging parameters of healthy women with dull complexion. Subjects and method: 30 healthy female volunteers of 35 to 60 years old were enrolled in the study. The activated product (aquaserum and liposerum) were applied to the face, twice a day for 8 weeks. The evaluation was performed on T0 and T8 weeks by measuring the skin radiance using clinical scoring C.L.B.T.TM and Glossymeter® GL200, Crow’s feet wrinkles by Bazin visual perioral scale, skin elasticity by Cutometer® SM575, and also the subject’s self-assessment. Results: All 30 subjects finished the study without any serious adverse events. The results revealed a significant improvement in all C.L.B.T.TM indicators presenting skin radiance through an increase of Luminosity (29%), Transparency (28%), Brightness (27%) (p=0.001) while a decrease of Pink Red (38%), Olive (31%), Beige (30%), Light Pink (21%) parameters (p<0.001).For skin relief, statistical analyses revealed a significant decrease of wrinkles’ depth evaluated by clinical scoring (9%, p=0.003). For the elasticity, an improvement which tends to be significant (0.462±0.098 at T0 and 0.506±0.111 at T8 weeks; p=0.06) for the Ur/Ue parameter, was observed.After 8 weeks of topical application of Perfectil® Twin-Serum, the subjects significantly found that their skin is less dull (p=0.002), less red (p=0.002), with less spots (p=0.044), less sagging (p=0.002) and less wrinkles (p=0.002). Conclusion: The results observed in this trial show that 8 weeks of Perfectil® Twin Serum use provide beneficial effect on skin radiance and skin surface relief (wrinkle depth). The action of the bi-phasic product may have a positive effect on the immediate penetration of the product which should be evaluated through the further studies. Furthermore, the ingredients seem to restore the skin lipidic layer, which explains its protective effect during winter time.
Os dados estão nos engolindo?
Authors: Santaella Lucia , Kaufman Dora
Published: August 2021

Este artigo visa definir e colocar em discussão três conceitos e práticas interconectadas, mas, ao mesmo tempo, irredutíveis: big data, datificação e dataísmo. São conceitos recentes que se impuseram devido ao aumento vertiginoso de dados que correm a uma velocidade ímpar na internet. As discussões se desenvolvem para desembocar com mais ênfase no dataísmo hoje criticado como uma nova forma de religião. São colocadas em evidência suas ambivalências, paradoxos e contradições, em especial o paradoxo do uso ininterrupto das redes e as novas contradições do capitalismo que são alimentadas por esse uso. A balança que oscila entre o desejo do usuário e os efeitos nefastos na lógica mais recente do capitalismo abre um abismo que este artigo coloca sob reflexão.
The Body and Desire: Gregory of Nyssa’s Ascetical Theology By R. A. Cadenhead (2018)
Authors: Misgen Sara
Published: August 2021

The Body and Desire: Gregory of Nyssa’s Ascetical Theology By R. A. Cadenhead (2018) Oakland: University of California Press, xii + 267pp.
Confucianism and the Philosophy of Well-Being By R. Kim (2020)
Authors: Tavor Ori
Published: August 2021

Confucianism and the Philosophy of Well-Being By R. Kim (2020) New York: Routledge, ix + 119pp.
Investigation and prediction of noise pollution levels from wind turbines: A case study of Nexif Energy Ben Tre wind power plant, South Vietnam
Authors: Nguyen Quoc Huan , Tran Thien Cuong , Nguyen Xuan Cu , Vu Dinh Tuan , Tran Minh , Ngo Van Liem
Published: August 2021

In recent years, the demand for electric power in Vietnam has increased at annual growth rates of 10% to 12%, and the challenge is to promote renewable energy sector. One of these sustainable energy sources is to harness energy from the wind through wind turbines (WTs). In fact, more wind power plants in Vietnam are continuously to be built due to the rapidly growing demand of country's industrialization and modernization process. However, a significant hindrance preventing the widespread use of WTs in Vietnam is the noise they produce, which significantly contributes to the annoyance experienced by residents living near wind farms. The prediction of noise impacts for new wind farms is one of the many aspects of the environmental impact assessment process in Vietnam as well as in the world. In addition, the determination of the 45 dBA noise contour-line is very important because it is the basis for determining the scope of the project impact according to the IFC/WB performance standards and the number of households to be relocated from the project site. The article’s main focus is therefore on the estimation and simulation of the acoustical noise produced by 18 WTs during the operation phase of Nexif Energy Ben Tre wind power plant and the background noise levels at the project site have been performed by using a combination of specific study methods such as environmental modeling (iNoise Pro modeling software), mapping and geographic information systems. The obtained results show the importance of using modeling method in quantifying the noise levels generated from 18 wind turbines of the Nexif Energy Ben Tre wind power plant met IFC standard and Vietnamese regulation on noise during day-time, but did not meet IFC standard on noise during night-time. The level of background noise measured during night-time in the project area also did not meet IFC standard. Therefore, the overall cumulative noise level exceeds the IFC standard for residential area (45 dBA only). In addition, the appropriate solutions to reduce noise levels from WTs are also proposed.
Integrated flood management in the Hull catchment, England
Authors: Spiers Martin A.
Published: August 2021

Since the major flood event in 2007, RPS has been deeply involved in investigating, understanding and reducing flood risk across the Hull and Haltemprice catchment. RPS has developed and refined a complex integrated catchment model by combining Yorkshire Water's model of below-ground assets with data for the watercourses and overland flow paths obtained from the Environment Agency, East Riding of Yorkshire Council and Hull City Council. RPS used the model to identify major schemes, leading to the design of flood alleviation schemes at Willerby and Derringham, Anlaby and East Ella, and Cottingham and Orchard Park. With further enhancements, the model has been used to better understanding of the complex interactions between the various water systems and solutions are being identified for a long-term plan. Hull has many unique features, driven by its topography, geology and the historical developments of its sewerage network and waterways. These specific challenges require bespoke solutions and there is a clear desire among the partner organisations to work together to drive contemporary blue–green solutions. This requires multi-agency working and progressive thinking to deliver effective flood risk management. This paper reviews the challenges in understanding and resolving these issues.
Scouring of sand beds by short impinging turbulent jets
Authors: Amin Mahmud Rashedul , Rajaratnam Nallamuthu , Zhu David Z.
Published: August 2021

Laboratory experiments were carried out to study the scouring of sand beds by vertically impinging submerged circular turbulent water jets with short impinging height of 5.5 times the jet diameter. Measurements of the profiles of the static scour hole at different times were made along with the dynamic scour depths using a novel experimental arrangement. It was found that the asymptotic characteristic lengths of the scour hole can be predicted using the erosion parameter, Ec, of short impinging jet experiments. The ratio of the dynamic to static scour depths in asymptotic state varies between 2.1 and 4.3, for Ec ranges between 3 and 28. Semi-empirical prediction equations are developed for the asymptotic lengths and empirical equations are developed for the temporal development of the characteristic lengths. These equations show good correlations, with the coefficient of correlation (R2) varying beween 0.83 and 0.98. The shape of the dimensionless asymptotic scour hole is found to be different for short and long impinging jets. A general equation for its shape is developed considering the shape as a function of the submerged angle of repose of the bed material.
Between Mirrors all the beginnings: a queer autobiography of the body
Authors: Campbell Marion May
Published: August 2021

Just as any body's cells are constantly dying and regenerating, all the beginnings: a queer autobiography of the body draw its vitality from the teeming traffic of death, the fertile muck of the abject. Such is the suggestion of the title, sourced in Hélène Cixous' work (1991: 41), out of whose spell this life writing marks off its distinctive poetics of the fragment, drawing an ethics of openness from the mining of abjection. To be sure, this is no chronological memoir, building teleologically to a transformation and consolidation of social identity. Quite to the contrary: bold, brave, and disturbingly innovative, this work from Sydney-born Quinn Eades, formerly known as Karina Quinn, performs a body reinventing itself: scarified, 'surgeried', written into and out of, and endlessly reconfigured through the writing. Eades builds their story through a constellation of scenes staging the embodied, yet fractured self, the sujet en procès, the subject-on-trial and -in process (Kristeva 1977) from coruscating scintillation to depressive passivity, through what they call écriture matière -- writing as a material practice. 
BORSA ENDEKSİ VE BELİRSİZLİK GÖSTERGELERİ ARASINDAKİ NEDENSELLİK İLİŞKİSİ: TÜRKİYE ÖRNEĞİ
Authors: İLTAŞ Yüksel , GÜZEL Fatih
Published: August 2021

Bu çalışmada, Türkiye için Toda-Yamamoto ve yapısal kırılmaları dikkate alan Fourier Toda-Yamamoto nedensellik testleri kullanılarak 2010/01-2020/06 döneminde BİST-100 Endeksi ile VIX ve CDS primi arasındaki olası nedensellik ilişkilerinin varlığı ampirik olarak araştırılmıştır. Çalışmadan elde edilen bulgulara göre; BİST-100 ve VIX Endeksleri arasında, VIX Endeksinden BİST-100 endeksine doğru tek yönlü bir nedensellik ilişkisi mevcut olup, BİST-100 Endeksi ve CDS primi arasında ise, çift yönlü nedensellik ilişkisi bulunmaktadır. Fourier Toda-Yamamoto ile Toda-Yamamoto nedensellik testleri sonuçları birbiri ile örtüşmektedir. VIX Endeksi ile CDS primi özelinde küresel ve ülkeye yönelik belirsizlik göstergeleri borsa endeksini etkilemektedir, yatırım ve politika karar süreçlerinde dikkate alınması gerekmektedir.
Diagnosing Diabetes, Diagnosing Colonialism: An Ethnography of the Classification and Counting of a Senegalese Metabolic Disease
Authors: Bunkley Emma N
Published: August 2021

This article explores the top-down production of the statistics frequently circulated in global health. These data must first originate in a place like the public hospital in Saint-Louis, Senegal, in doctor’s offices and laboratories and medical archives. At their root, these data are an accumulation of individual bodies, experiences, and intimate diagnostic moments. This aggregation turns the afflicted into categories and statistical regimes that shape a global health understanding of diabetes specifically, and noncommunicable diseases broadly. This article explores the individual diabetes diagnostic moment itself and the politics of the current nosology of Type 1 and Type 2, a seemingly neutral dichotomy that belies colonial relationships between Senegal, slavery, sugar production and consumption, and the effects these relationships have on contemporary conceptions of diabetes diagnosis in Senegal and global health.
Patient Pathways and Diagnostic Value in Sierra Leone
Authors: Bah Fatmata , Vernooij Eva , Street Alice
Published: August 2021

What is the value of a diagnostic test? Most obviously for primary healthcare settings, laboratory tests can inform clinical decision making about treatment and patient management. Their predominant value in this context is therefore medical. But what about when that healthcare setting is chronically under-resourced, healthcare workers (including laboratory workers) are underpaid, and government supply chains fail to deliver basic laboratory supplies? In this contribution to the Field Notes section, we describe a Community Health Centre (CHC) in Sierra Leone where such conditions have given rise to a quasi-private laboratory service within the public health facility. Through detailed ethnographic description of patients’ diagnostic pathways through the facility, we examine and assess the impact on patient care when the medical and economic value of diagnostic tests diverge.
Binary solutions to large systems of linear equations
Authors:   Institute for Information Transmission Problems of the Russian Academy of Sciences (Kharkevich Institute), Seliverstov A. V.
Published: August 2021

The concept of generic computational complexity has been extended to generalized register machines over an ordered field. In this case, the machine halts at every input and gives a meaningful answer at almost every input, but it can abandon the calculation using explicit notification, that is, there exists the vague halting state. Note that the machine does not make any error. A generic polynomial time algorithm is proposed to recognize systems of linear equations without any binary solution, when the number of equations m is close to the number of unknowns n. More precisely, two conditions are required. Firstly, the inequality 2n ≥(n-m+1)(n-m+2) holds. Such systems are called large because the number of equations is close to the number of unknowns. Secondly, some assumptions of generality of the system of equations are fulfilled. Our approach is based on finding a positive definite quadratic form among the set of forms that depend on parameters. On the other hand, a counterexample has been found, whicht shows the inapplicability of this method for checking the absence of any binary solution to one equation.
Algorithmic theory of solvable groups
Authors:   Dostoevsky Omsk State University, Roman’kov V. A. ,   Institute of Mathematics. S. L. Sobolev SB RAS
Published: August 2021

The purpose of this survey is to give some picture of what is known about algorithmic and decision problems in the theory of solvable groups. We will provide a number of references to various results, which are presented without proof. Naturally, the choice of the material reported on reflects the author’s interests and many worthy contributions to the field will unfortunately go without mentioning. In addition to achievements in solving classical algorithmic problems, the survey presents results on other issues. Attention is paid to various aspects of modern theory related to the complexity of algorithms, their practical implementation, random choice, asymptotic properties. Results are given on various issues related to mathematical logic and model theory. In particular, a special section of the survey is devoted to elementary and universal theories of solvable groups. Special attention is paid to algorithmic questions regarding rational subsets of groups. Results on algorithmic problems related to homomorphisms, automorphisms, and endomorphisms of groups are presented in sufficient detail.
On the nonexistence of certain orthogonal arrays of strength four
Authors:   University of Szeged, Kiss R. , Nagy G. P. ,   Budapest University of Technology and Economics; University of Szeged
Published: August 2021

Дано решение открытой проблемы олимпиады по криптографии NSUCRYPTO-2018: показано, что не существует ортогональных массивов OA (16L, 11, 2, 4) с L = 6 и 7. Этот результат позволяет определить минимальные веса некоторых корреляционно-иммунных булевых функций высокого порядка.
The techniques of formalization of OS Astra Linux Special Edition access control model using Event-B formal method for verification using Rodin and ProB
Authors:   RusBITech-Astra, Devyanin P. N. , Leonova M. A. ,   RusBITech-Astra
Published: August 2021

The paper presents techniques to specification access control model of OS Astra Linux Special Edition (the MROSL DP-model) in the formalized notation (formalized using the Event-B formal method), that are based on the use of several global types, separation of general total functions into specific total functions, reduction in the number of invariants and guard of events, which iterate over subsets of a certain set. The result of using these techniques was the simplification of automated deductive verification of formalized notation using the Rodin tool and adaptation of the model to verification by model checking formalized notation using the ProB tool. These techniques can be useful in development of the MROSL DP-model, and also in development of other access control models and verification using appropriate tools.
Discrete closed one-particle chain of contours
Authors:   Moscow Automobile and Road Construction State Technical University, Myshkis P. A. , Tatashev A. G. ,   Moscow Automobile and Road Construction State Technical University, Yashina M. V. ,   Moscow Automobile and Road Construction State Technical University
Published: August 2021

A discrete dynamical system called a closed chain of contours is considered. This system belongs to the class of the contour networks introduced by A. P. Buslaev. The closed chain contains N contours. There are 2m cells and a particle at each contour. There are two points on any contour called a node such that each of these points is common for this contour and one of two adjacent contours located on the left and right. The nodes divide each contour into equal parts. At any time t = 0,1, 2,... any particle moves onto a cell forward in the prescribed direction. If two particles simultaneously try to cross the same node, then only the particle of the left contour moves. The time function is introduced, that is equal to 0 or 1. This function is called the potential delay of the particle. For t ≥ m, the equality of this function to 1 implies that the time before the delay of the particle is not greater than m. The sum of all particles potential delays is called the potential of delays. From a certain moment, the states of the system are periodically repeated (limit cycles). Suppose the number of transitions of a particle on the limit cycle is equal to S(T) and the period is equal to T. The ratio S(T) to T is called the average velocity of the particle. The following theorem have been proved. 1) The delay potential is a non-increasing function of time, and the delay potential does not change in any limit cycle, and the value of the delay potential is equal to a non-negative integer and does not exceed 2N/3. 2) If the average velocity of particles is less than 1 for a limit cycle, then the period of the cycle (this period may not be minimal) is equal to (m + 1)N. 3) The average velocity of particles is equal to v = 1 - H/((m + 1)N), where H is the potential of delays on the limit cycle. 4) For any m, there exists a value N such that there exists a limit cycle with H > 0 and, therefore, v < 1.
Ortaokul Fen Bilimleri Ders Kitaplarının Ölçme ve Değerlendirme Açısından İncelenmesi
Authors: KÖSE Mücahit
Published: August 2021

Bu araştırmada 2018-2019 Eğitim-Öğretim Yılında ortaokullarda fen bilimleri dersinde kullanılan ders kitaplarının ölçme ve değerlendirme açısından incelenmesi amaçlanmıştır. Araştırmada 5-8. sınıf fen bilimleri ders kitapları, ölçme değerlendirme teknikleri ile yenilenmiş Bloom taksonomisinin bilgi birikimi ve bilişsel süreç boyutları kapsamında analiz edilmiştir. Nitel araştırma yöntemlerinden doküman incelemesi yönteminin kullanıldığı araştırmada Milli Eğitim Bakanlığı Talim Terbiye Kurulu tarafından onaylanmış okullarda temel kaynak olarak kullanılan dokuz fen bilimleri dersi kitabı araştırma kapsamında incelenmiştir. Ders kitaplarında yer alan ünite sonu değerlendirme soruları ile ünite konu içeriklerinde yer alan sorular, ölçme değerlendirme teknikleri ve yenilenmiş Bloom taksonomisinin bilişsel süreç ve bilgi birikimi boyutları açısından analiz edilmiştir. Araştırmada elde edilen bulgulara göre fen bilimleri ders kitaplarında geleneksel ölçme değerlendirme tekniklerine daha fazla yer verildiği görülmüştür. Fen bilimleri ders kitaplarında yer alan sorular yenilenmiş Bloom taksonomisi bilişsel süreç boyutuna göre daha yüksek oranda hatırlama ve anlama düzeylerinde olduğu, bilgi birikimi boyutunda ise soruların daha çok olgusal ve kavramsal bilgi türünde olduğu tespit edilmiştir. Alternatif ölçme değerlendirme teknikleri fen bilimleri ders kitaplarında daha az oranda ve sınırlı çeşitte yer almıştır. Sınıf düzeyi arttıkça kitaplarda yer alan çoktan seçmeli türündeki soru sayılarının artış gösterdiği belirlenmiştir. Araştırmada fen bilimleri ders kitaplarında yer alan ölçme ve değerlendirme teknikleri ve Bloom taksonomisine göre soru niteliklerinin fen bilimleri öğretim programının benimsediği ölçme ve değerlendirme anlayışıyla uyumlu olmadığı sonucuna ulaşılmıştır.