bluuebunny/crossref_metadata_2025 huggingface dataset:
Reproducing kernels and minimal solutions of elliptic equations
Authors: Żynda Tomasz Łukasz , Sadowski Jacek Józef , Wójcicki Paweł Marian , Krantz Steven George
Published: November 2022

Suppose that the set of square-integrable solutions of an elliptic equation which have a value at some given point equal to c is not empty. Then
there is exactly one element with minimal

L
2

{L^{2}}

-norm. Moreover, it is shown that this minimal element depends continuously on a domain of integration, i.e.,
on the set on which our solutions are defined, and on a weight of integration, i.e., on the deformation of an inner product. The theorems are proved using the theory of reproducing kernels and Hilbert spaces of square-integrable solutions of elliptic equations. We prove the existence of such a reproducing kernel using theory of Sobolev spaces.
We generalize the well-known Ramadanov theorem. This is done in three different ways. Two of them are similar to the techniques used by I. Ramadanov and M. Skwarczyński(see [11, 14, 13])
, while the third method using weak convergence is new. Moreover, we show that our reproducing kernel depends continuously on a weight of integration. The idea of using the minimal norm property in such a proof is novel and, which is important, it needs the convergence of weights only almost everywhere.
Direct proofs of intrinsic properties of prox-regular sets in Hilbert spaces
Authors: Konstantinov Matey , Zlateva Nadia
Published: November 2022

We provide new proofs of two intrinsic properties of prox-regular sets in Hilbert spaces.
First records of albinism and leucism in Ctenodactylus gundi (Rodentia: Ctenodactylidae)
Authors: El-Farhati Haithem , Nouira Saïd
Published: November 2022

Albinism and leucism are genetic disorders that cause atypical coloration. Herein, we present observation cases of hypomelanism not previously recorded in the literature for a Ctenodactylidae species. We report two observations of an albino and a leucistic specimens from two separate locations distant of 230 km in the central and southern Tunisia. The first observation was in Metlaoui (34°21′14.9″N 8°22′16.7″E) and the second in Ghomrassen (33°04′46.5″N 10°21′23.7″E). Certain factors can increase the chances of these atypical colorations in the natural population, but these phenotypes remain rare in rodents, especially in African species.
An algebraic semigroup method for discovering maximal frequent itemsets
Authors: Liu Jiang , Li Jing , Ni Feng , Xia Xiang , Li Shunlong , Dong Wenhui
Published: November 2022

Discovering maximal frequent itemsets is an important issue and key technique in many data mining problems such as association rule mining. In the literature, generating maximal frequent itemsets proves either to be NP-hard or to have

O

(

l

3

4

l

(

m
+
n

)

)

O\left({l}^{3}{4}^{l}\left(m+n))

complexity in the worst case from the perspective of generating maximal complete bipartite graphs of a bipartite graph, where

m

m

,

n

n

are the item number and the transaction number, respectively, and

l

l

denotes the maximum of

∣
C
∣
∣
Ψ

(

C

)

∣

/

(

∣
C
∣
+
∣
Ψ

(

C

)

∣
−
1

)

| C| | \Psi \left(C)| \hspace{0.1em}\text{/}\hspace{0.1em}\left(| C| +| \Psi \left(C)| -1)

, with the maximum taken over all maximal frequent itemsets

C

C

. In this article, we put forward a method for discovering maximal frequent itemsets, whose complexity is

O

(

3
m
n

2

β

+

4

β

n

)

O\left(3mn{2}^{\beta }+{4}^{\beta }n)

, lower than the known complexity both in the worst case, from the perspective of semigroup algebra, where

β

\beta

is the number of items whose support is more than the minimum support threshold. Experiments also show that an algorithm based on the algebraic method performs better than the other three well-known algorithms. Meanwhile, we explore some algebraic properties with respect to items and transactions, prove that the maximal frequent itemsets are exactly the simplified generators of frequent itemsets, give a necessary and sufficient condition for a maximal

i
+
1

i+1

-frequent itemset being a subset of a closed

i

i

-frequent itemset, and provide a recurrence formula of maximal frequent itemsets.
In-situ CT characterization of 2D woven SiCf/SiC composite loading under compression
Authors: Guo Weina , Gao Yantao , Sun Lijuan
Published: November 2022

SiC fiber-reinforced SiC matrix composites (SiCf/SiC) with 2D woven fabric as preform were tested under compression with in-situ X-ray computed tomography. The microstructure and damage evolution of the material under continuous loading levels were accurately revealed by image reconstruction of CT data. There were inhomogeneous pores in SiCf/SiC composite because of the un-uniform fiber distribution in the preform. The result also showed that 2D woven SiCf/SiC composite had obvious non-linear characteristics by its compressive load–displacement curve, and the damage modes included transverse matrix cracking, interlayer cracking, longitudinal matrix cracking, and fiber bundle fracture. Matrix cracking tended to occur near the pores or holes of the material, and the number of longitudinal cracks was relatively high compared to the number of transverse cracks.
Visual representations on Nigerian trucks: a semiotic study
Authors: Mensah Eyo , Nyong Benjamin
Published: November 2022

The public transport sector in the urban landscape in Nigeria is a prominent social site for the spatial distribution of automobile graffiti signatures. Transporters have various kinds of symbolic tags on their vehicles that convey different messages which represent their local attitudes, beliefs, religious identities, folk psychology, and safety precautionary measures to recipients (other road users and passers-by). This article, based on two case studies, examines the practice of automobile graffiti on trucks and lorries in Calabar metropolis, Cross River State, south-eastern Nigeria. It investigates the motivations, thematic categories, and subjective semiotic interpretations of these verbal signatures from the perspectives of visual semiotics theory using participant observations, semi-structured interviews, and informal conversations. The study demonstrates that truck drivers/owners use their vehicles as visible artistic platforms in the public space to express their thoughts and sentiments on personal, social, and religious issues affecting the society. The study concludes that these inscriptions and imageries are artistic subcultures that mirror wide ranging value categories and provide outlets for spatial transformation, creative agencies, and social commentaries.
Furoquinoline and bisindole alkaloids from the roots ofTeclea nobilisand theirin-silicomolecular docking analysis
Authors: Ayele Tamrat Tesfaye , Gurmessa Getahun Tadesse , Abdissa Zelalem , Melaku Yadessa , Garg Ankita , Bedane Kibrom Gebreheiwot , Abdissa Negera
Published: November 2022

Teclea nobilisis a medicinal plant widely used to treat oral pathogens, gonorrhea, fever, analgesics, asthma, joint pains, pneumonia, and intestinal worms in Ethiopia. Anticipated by these claims, column chromatographic separation of the roots extract ofT.nobilisled to the isolation of eight alkaloids (1–8). The structures of the isolated compounds were identified based on their NMR (1D and 2D) spectral data analysis and comparison with reported literature data.In-silicomolecular docking analysis of the isolated compounds were performed againstStaphylococcus aureusDNA Gyrase (PDB ID: 2XCT) and human topoisomerase IIβ DNA (PDB ID: 3QX3) by using AutoDock Vina. ADMET analysis were performed by SwissADME, PreADMET, and OSIRIS Property predictions. The study revealed that the isolated compounds exhibited promising binding affinity to DNA gyrase, especially with compound 5 forms a stable drug-protein complex. Whereas the ADME and drug-likeness analysis revealed that compound 5 is less absorbed from the gastrointestinal tract, crossblood brain barrier and a P-glycoprotein substrate. This indicated that compound 5 could be a good candidate as anticancer agent provided thatin vivoanalysis done for more confirmation.
Ludwig’s Punch and Bertie’s Comeback
Authors: Baumann Peter
Published: November 2022

Desires are contentful mental states. But what determines the content of a desire? Two different classic answers were proposed by Russell and by Wittgenstein, starting in the 1910s. Russell proposed a behaviourist account according to which the content of the desire is fixed by the type of state that puts an end to the relevant kind of behaviour which was triggered by some initial discomfort. The desire’s content consists in its “satisfaction conditions”. Wittgenstein criticized such an account for neglecting the crucial point that the relation between a desire and its content is a conceptual, internal one, not an external contingent one. Desires specify their own contents, their “fulfillment conditions”. Even though there is a lot to say in favour of  Wittgenstein’s criticism, this paper argues that Russell pointed at an important aspect of desires which plays a crucial role for accounts of self-knowledge of one’s own desires. It turns out fulfillment conditions and satisfaction conditions are tied together in rational self-knowledge of one’s own desires. In this sense, the views of Russell and Wittgenstein can be combined in a fruitful way.
Russell's Chinese Farewell Cup
Authors: Simpson Tony
Published: November 2022

Upon leaving China Bertrand Russell was presented with this cup.
Truer Text of "The Problems of Philosophy"
Authors: Blackwell Kenneth
Published: November 2022

The text of The Problems of Philosophy is unsound. It was published first with minor typographical errors. Revision in 1913 resulted in serious errors. Resetting the type in 1946 corrected some but omitted a line and introduced other errors. Resetting the type in 1967—for the final time in Russell’s life—repeated this history while he agreed to a substantive change. I distinguish alterations of sense and recommend seven restorations to build a sounder text, along with an historical register of variants.
"His Class Slack-Jawed and with Eyes Aglaze": Bertrand Russell at UCLA, 1939–40
Authors: Stevenson Michael D.
Published: November 2022

Bertrand Russell left the “bleak hideousness” of Chicago in March 1939 to accept an appointment at the University of California at Los Angeles. Scholarly analysis of Russell’s sojourn in California has focused on the College of the City of New York controversy that engulfed him in the winter term of 1940 and his subsequent departure from UCLA to take up the William James Lectureship at Harvard University. This paper concentrates on Russell’s appointment to UCLA and his experience teaching in Los Angeles during the 1939–40 academic year in an attempt to reconstruct his activities during this tumultuous period while he resided in America between 1938 and 1944.
Experimental Study of The Addition of Palm Fiber (Arenga Pinnata) as Fiber Against The Compressive Strength of Pozzolan Bricks
Authors: Nanda Mahdika Putra
Published: November 2022

Abstract. Brick is a building material widely used as a construction material for walls and fences, one of which uses Pozzolan brick. Pozzolan brick is made from Trass, lime, or cement. A local material that can be used as an additional fiber in the mixture of Pozzolan brick making is fibers, because it has been proven that the addition of fibers in concrete can improve its physical and mechanical properties, in addition, the fibers also have a hard rotten nature because there is no decomposer that can decompose them. Thus, it is necessary to investigate the addition of fibers as fiber in Pozzolan bricks. The experimental method was used in this study. The purpose of this study is to find out whether Pozzolan bricks with the addition of a mixture of fibers have better compressive strength and to find out whether they meet the requirements to become bricks according to SNI 15-2094-2000 and PUBI-1982. From the results of research and analysis that has been done regarding the addition of fiber fibers (Arenga pinnata) as a fiber to the compressive strength of pozzolan bricks, it is found that the compressive strength of pozzolan is 4.99 Mpa with a porosity value of 3.24%, thus pozzolan bricks can provide economic value for the wider community. Based on the compressive strength and porosity, pozzolan bricks also meet the requirements to become bricks according to SNI 15-2094-2000 and PUBI-1982 in grade III.
Unhas notas sobre o sistema evidencial galego
Authors: González Vázquez Mercedes
Published: November 2022

O obxectivo deste artigo é presentar unha visión xeral do sistema evidencial galego, nomeadamente das fontes indirectas inferencial e reportativa. Tras levar a cabo unha revisión dos estudos previos dos adverbios disque e seica, analizamos os dous significados evidenciais mediante exemplos do conxunto de marcadores que propoñemos e amosamos casos nos que a fonte é indistinta entre os dous valores canónicos previos, o que se vén en chamar “significado indirecto-indiferente”. Comprobamos que as expresións evidenciais actúan como unidades pragmáticas polifuncionais transmisoras de diversos matices sociais relacionados coas estratexias de cortesía negativa (atenuación), autoridade epistémica e establecemento dun territorio de información común compartido entre falante e oínte.
Habilidades cognitivas y sociales en la resolución de problemas matemáticos de forma colaborativa
Authors: Chandia Eugenio , Huencho Anahí , Pérez Carlos , Ortiz Andrés , Cerda Gamal
Published: November 2022

[Objetivo] El objetivo del estudio fue analizar las habilidades cognitivas y sociales de un grupo de estudiantes y su profesora en una intervención basada en la resolución de problemas colaborativos (RPC) en matemática. [Metodología] Se realizó un estudio eligiendo uno de los 8 grupos de 4 estudiantes formados aleatoriamente en una intervención no curricular programada en 24 sesiones quincenales de 90 minutos. El grupo elegido quedó constituido por 4 estudiantes de género femenino. Se registraron las sesiones y se codificaron las interacciones entre sujetos (estudiantes y profesora) al inicio y término de la intervención respecto de habilidades de representación, regulación, comunicación y roles asumidos en el trabajo grupal, y en la interacción con la profesora. Estas codificaciones fueron posteriormente analizadas mediante técnicas de análisis de grafos asimétricos para medir la intensidad de las interacciones y por análisis de correspondencia determinar la significancia de las relaciones entre las subhabilidades involucradas. Se utilizó el paquete Rstudio. [Resultados] Se observa a lo largo de la implementación, un cambio significativo en cuanto a la intensidad de las interacciones entre las participantes respecto de los índices de centralidad y cercanía asociados a los grafos representativos, y una relación significativa entre las subhabilidades involucradas. [Conclusiones] El trabajo sistemático de RPC en matemática de la intervención realizada promueve y modifica las habilidades sociales y cognitivas y su interacción.
CIRCADIAN VARIATION IN FUNCTIONAL POLARIZATION OF MURINE PERITONEAL MACROPHAGES
Authors:   Taras Shevchenko National University of Kyiv, Ukraine, Dovhyi R.
Published: November 2022

Aim. This study aimed to investigate the circadian rhythm of the murine peritoneal macrophage (PM) metabolic profile. Methods. The metabolic profile of PM was characterized by phagocytic activity, reactive oxygen species (ROS) generation, and by the expression of phenotypic markers, associated with a pro- and anti-inflammatory metabolic shift. Phagocytosis of FITC-labeled inactivated Staphylococcus aureus, ROS generation, CD80, CD86, and CD206 expression were estimated by flow cytometry at a regular 4h interval over the daily light-dark cycle. Results. The phagocytic index and percentage of ROS-producing PM were found to be lower in the resting phase (ZT4) as compared to the active phase. In contrast, the level of CD86 expression was the highest in the inactive phase (ZT8). There was also a statistically significant peak in the proportion of ROS-producing PM, as well as in the level of ROS production per cell at the time of awakening (ZT12). As opposed to ROS generation, ZT12 was characterized by the lowest level of cell-surface CD206 expression. Conclusions. Our results indicate that there is a circadian rhythm in functional polarization of murine PM with an anti-inflammatory activation state in the resting phase in comparison to the active phase.
EFFECTS OF PROGENITOR CELL CONDITIONED MEDIA ON THE AMOUNT OF BRAIN CORTEX NEURONS IN A RAT MODEL OF TRAUMATIC BRAIN INJURY
Authors:   Taras Shevchenko National University of Kyiv, Kyiv, Ukraine, Kolobova I.G.
Published: November 2022

Aim. The purpose of the study was to examine beneficial effect of conditioned media (CM) of progenitor cells of different origin (neurogenic progenitor cells, or NPCs, and adipose-derived mononuclear cells, or AMCs) as a source of mesenchymal multipotent stromal cells (MMSCs) on brain cortex neurons in rats with traumatic brain injury (TBI). Methods. TBI was reproduced in outbred sexually mature male rats by developing the model of free-falling load (50 g) with damage to the left hemisphere of the brain. The rats were injected 3 times with an interval of every other day intraperitoneally with NPCs CM and AMCs CM (dose 0.8 mg by total protein) that were obtained from cell cultures of fetal rat brain and adult rat adipose tissue. On the 5th day after TBI, the morphologic study of brain tissue was performed. Results. The number of neurons in the cortex of rats on the 5th day after TBI in damaged hemisphere as well as in contralateral hemisphere compared to control group decreased by half. Three i.p. injections of NPCs CM or AMCs CM increased the number of neurons in the cortex in both hemispheres in rats of corresponding groups compared to the rats with TBI without additional treatment. Conclusion. Obtained results indicate that CM obtained from NPCs and AMCs have noticeable neuroprotective effect on the damaged neurons and might be considered as an additional mode to treatment of TBI.
INDICATORS OF THE SKIN MICROBIOTA AND THE PHAGOCYTIC ACTIVITY IN MEAT AND EGG PRODUCTION WORKERS
Authors:   Bohdan Khmelnytsky National University of Cherkasy, Cherkasy, Ukraine, Sokolenko V. L.
Published: November 2022

Aim. The analysis of the indicators of skin microbiota and phagocytic activity of neutrophils and monocytes in employees of the "Peremoga Nova" poultry farm. Methods. The presence of sanitary and epidemiologically important groups of bacteria and the number of mesophilic aerobic and facultative anaerobic microorganisms (MAFAnM) on the skin surface, leukogram parameters and phagocytic activity of professional phagocytes were determined. The indicators of students of the Bohdan Khmelnytsky National University of Cherkasy were used as a control. Results. It was found that the MAFAnM index in the experimental group (3.2×103 CFU/cm3) is significantly lower than in the control group (2.7×103 CFU/cm3), however, the percentage of Staphylococcus spp. carriers is higher (67.5% versus 40.0%). In the experimental group, the relative and total number of monocytes is significantly higher compared to the control group. There is a positive correlation between the phagocytic number and the phagocytic index of monocytes and the value of MAFAnM. Conclusions. There was an increase of the level of monocytes in meat and egg products workers against the background of the presence of bacteria of the Staphylococcus spp. group on the skin. It may indicate the activation of pro-inflammatory factors at the level of peripheral blood. An increased percentage of staphylococcal carriers is a sign of adaptation of Staphylococcus spp. bacteria to the antibiotics used in the manufacturing process.
THE INFLUENCE OF PHOTOSENSITIVE PEPTIDOMIMETICS ON WEIGHT INDICES OF IMMUNE ORGANS OF EXPERIMENTAL ANIMALS WITH TRANSPLANTABLE LEWIS LUNG CARCINOMA
Authors:   Taras Shevchenko National University of Kyiv ", Volodkina D. ,   Institute of Biology and Medicine",   , Ukraine
Published: November 2022

The use of photodynamic therapy of drugs capable of selective accumulation in the tumor or in affected cells, in particular photosensitive peptidomimetics, increases its effectiveness in various treatment schemes. Aim. Determination of weight indices (WI) of thymus and spleen in animals with carcinoma after photodynamic therapy with peptidomimetics: LMB002 and LMB033. Methods. Studies of WI of immune organs were carried out in mice of the C57 Black line on the 28th day after transplantation of Lewis lung carcinoma. The therapeutic effect was studied using photosensitive peptidomimetics: LMB002 and LMB033. The natural antibiotic gramicidin C was used as a control. Results. Comparison of the WI of the spleen of intact animals and animals with tumors showed a twofold (p< 0.05) increase in animals with tumors. As for the WI of the thymus, a tendency to its increase was observed in animals with tumors, compared to intact ones, but no significant difference was found. The following results were obtained: a decrease in the WI of the spleen in animals with tumors and the introduction of placebo and an increase in the WI of the spleen in animals treated with gramicidin C; an increase in spleen WI and a slight decrease in thymus WI under the influence of LMB002, an increase in spleen WI under the influence of LMB033, while the thymus WI did not change. Conclusions. It was established that the WI of the spleen during therapy with photosensitive peptidomimetics LMB033 and LMB002 increased in all groups of experimental animals compared to intact ones. The most significant effect on the spleen index was observed for the schemes of double administration of LMB033 and double phototherapy. No significant changes in the weight index of the thymus during therapy with photosensitive peptidomimetics LMB033 and LMB002 were found.
The role of etiopathogenetic factors of infertility in morphological and functional changes in the body of women during pregnancy (literature review)
Authors:   SI Institute of Pediatrics, Obstetrics and Gynecology named after academician O.M. Lukyanova of the NAMS of Ukraine, Kyiv, Kolomiets O.V.
Published: November 2022

Pregnant with a history of endocrine and tube-peritoneal genesis today make up a significant segment in the total number of pregnant women, and there is a clear trend in the growth of the number of such women. Considering that the main complications of pregnancy in women with infertility are miscarriage, hypertensive and metabolic disorders, we tried to find out those pathophysiological mechanisms that determine the nature of the course of pregnancy from the early stages of the gestational process until delivery. Analysis of the current state of the problem of perinatal losses and obstetric complications during pregnancy after fertility treatment helps to prevent them. No conflict of interests was declared by the author.
Fatigue syndrome after a viral illness. Post COVID-19 exanthema infection. Ichthyosis of the skin of the feet. (Clinical case)
Authors:   I. Horbachevsky Ternopil National Medical University, Ukraine, Nykytyuk S.O. , Tsimbalyuk I.M. ,   Ternopil Regional Children’s Clinical Hospital, Ukraine, Dolynna M.V. ,   Ternopil Regional Children’s Clinical Hospital, Ukraine, Bodnarchuk-Sokhatska N.Ya. ,   Ternopil Regional Children’s Clinical Hospital, Ukraine, Polyhach Y.P. ,   Ternopil Regional Children’s Clinical Hospital, Ukraine
Published: November 2022

The COVID-19 pandemic has posed many challenges to the medical community, a number of which will remain in the near future. Analysis of clinical cases helps to identify problems, to plan future research, which can change the understanding of the consequences of the disease. As the first year of the pandemic progresses, there is a better understanding of the pathophysiology of the virus and the varied results of imaging COVID-19 in affected organs, which is crucial for improving the treatment of this complex disease and improving health outcomes. It is described a clinical case of exanthema in an 11-year-old patient after COVID-19. Clinical and immunological methods of investigation are used. The child’s condition was of the moderate severity, caused by skin and asthenovegetative syndromes. The child was diagnosed with COVID-19; fatigue syndrome after a viral illness; post COVID-19 exanthema infection crustal ichthyosis of the legs. A particular feature of this case is the occurrence of exanthema on the skin of the child after COVID-19. In these cases, the awareness of pediatricians should be raised to increase the level of knowledge of the correct diagnostic algorithm. No conflict of interests was declared by the authors.
Clinical-epidemiological characteristics of acute bacterial meningitis in children of Khmelnitskyi region (Podilsky region, Ukraine): fifteen-year-long
Authors:   National Pyrogov Memorial Medical University, Vinnytsya, Ukraine, Pypa L.V. , Lysytsia Ju.N. ,   National Pyrogov Memorial Medical University, Vinnytsya, Ukraine, Polishchuk D.S. ,   National Pyrogov Memorial Medical University, Vinnytsya, Ukraine, Svistilnik R.V. ,   National Pyrogov Memorial Medical University, Vinnytsya, Ukraine, Romanchuk K.Yu. ,   National Pyrogov Memorial Medical University, Vinnytsya, Ukraine
Published: November 2022

Acute bacterial meningitis (ABM) leads to a significant number of complications and high mortality. The aim - to analyze the etiological structure, epidemiological, socio-demographic features and complications in ABM in children of Khmelnitskyi region during 2004-2018. Materials and methods. The analysis of 346 cases of ABM, of which 217 boys and 129 girls was conducted. The etiology of meningitis was determined by bacterioscopy, bacteriological sowing, latex agglutination and polymerase chain reaction. Complications were revealed based on the clinical picture and computed tomography and мagnetic resonance imaging. The processing of the results was carried out using analytical method, t-criterion and constructing 95% confidence interval. Results. The disease started with fever 346 (100%), neck stiffness 289 (83.5%) and vomiting 273 (78.9%), less common, alteration of consciousness 28 (8.1%) and seizures 9 (2.6%). The high level of the cytosis were observed in meningococcal (5801.3±4856.7 cells/mm3) and Hib meningitis (5152.6±4153.1 cells/mm3), the lowest level was in pneumococcal meningitis (2601.0±1839.6 cells/mm3). The highest level of liquor protein was in pneumococcal meningitis (179.0±51.0 mg/dl), and the lowest level was in meningococcal meningitis (102.0±49.0 mg/dl) and Hib meningitis (112.0±56.0 mg/dl). The etiological factor was established in 121 (35.0%) of patients. 52 (15.4%) of patients had neurological complications. Conclusions. The majority (58.1%) of ABM are in children under the age of 3. The main causative agent remains N. meningitidis - 57.9%, the second place is S. pneumoniae - 21.5%, the third Hib - 9.9% of cases. Frequent complications were brain edema 32 (61.5%), seizures 19 (36.5%) and hydrocephalus 8 (15.4%). The study was conducted in accordance with the principles of the Declaration of Helsinki. The research protocol was approved by the Local Ethics Committee of the institution mentioned in the work. Informed consent of the children’s parents was obtained for the research. No conflict of interests was declared by the authors.
Hydrothermal synthesis and sorption performance to Cs(I) and Sr(II) of zirconia-analcime composites derived from coal fly ash cenospheres
Authors: Vereshchagina Tatiana A. , Kutikhina Ekaterina A. , Buyko Olga V. , Anshits Alexander G.
Published: November 2022

The paper is concerned with (i) the hydrothermal synthesis of hydrous zirconium dioxide (HZD) bearing analcime (HZD-ANA, zirconia-analcime) and (ii) its sorption properties with respect to Cs+ and Sr2+. The HZD-ANA particles were synthesized from coal fly ash cenospheres composed of aluminosilicate glass with (SiO2/Al2O3)wt.=3.1 and characterized by PXRD, SEM-EDS, STA, and low-temperature N2 adsorption. The non-radioactive simulant solutions of different acidity (pH=2–10) and Cs+/Sr2+ content (0.5–50.0 mg/L) were used in the work. The effect of synthesis conditions on the HZD-ANA particle size, zirconia content and localization as well as the sorption behavior with respect to Cs+ and Sr2+ (capacity, KD) were clarified. It was found that the small-sized HZD-ANA composites surpasses the Zr free analcime and large-sized HZD-ANA material in the Cs+ and Sr2+ sorption parameters (KD ~104–106 mL/g). The conditions to synthesize the zirconia-analcime composite of the highly enhanced sorption ability with respect to Sr2+ (KD ~106 mL/g) were determined. The high-temperature solid-phase re-crystallization of Cs+/Sr2+-exchanged HZD-ANA composites was shown to occur at 1000 °C resulting in a polyphase system based on nepheline, tetragonal ZrO2, and glass phase.
Profile of municipal managers of healthcare in Brazil: an overview of three decades
Authors: Riquieri Manuella Ribeiro Lira , Carvalho André Luís Bonifácio de , Ouverney Assis Luiz Mafort , Sarti Thiago Dias
Published: November 2022

Abstract Municipal health secretaries are strategic actors in the construction of the Brazilian national health system - SUS, actively participating in the system’s governance. The comparative analysis of the profile of municipal secretaries over three decades (1996, 2006, and 2017) was carried out using the database of three cross-sectional surveys carried out at the national level with structured questionnaires aimed at all municipal health secretaries in the country. The increase in female participation, greater diversity in ethnic and racial terms, greater professional qualification of managers, and the renewal of the generational profile, reiterates the advance of the democratization of these management spaces. Despite the renewal of the profile during SUS’s construction, the challenge remains to make the public machine more representative of Brazilian society as a whole.
BRAZILIAN CONSENSUS STATEMENT ON VISCOSUPPLEMENTATION OF THE HIP (COBRAVI-Q)
Authors: SOUSA EDUARDO BRANCO DE , HAMDAN PAULO CÉSAR , MENEGASSI ZARTUR JOSÉ BARCELOS , ALCHAAR ADRIENI ANTUNES DO AMARAL , TIEPPO ANTONIO MARTINS , SOUZA CAIO GONÇALVES DE , PINHEIRO CARLOS BRUNO REIS , ALMEIDA JÚNIOR CYRO SCALA DE , ROCHA EDUARDO DE MELO CARVALHO , CUNHA FABIANO GONÇALVES , PACHECO IVAN , REZENDE MARCIA UCHÔA DE , SOUZA MÁRCIO PASSINI GONÇALVES DE , BRITTO DA SILVA MARCOS , CAMPOS GUSTAVO CONSTANTINO DE
Published: November 2022

ABSTRACT Objective: The Brazilian Consensus on Hip Viscosupplementation aims to generate a referential and consensual source from the theoretical knowledge and clinical experience of specialists in the field. Methods: A multidisciplinary panel was formed with 15 specialists (sports medicine, orthopedists, physiatrists and rheumatologists), based on clinical and academic experience in the use of viscosupplementation of the hip. 12 statements were prepared, discussed and voted. Each panelist gave a value between 0 and 10 on a Likert scale, specifying their level of agreement with the statement. Results: The panel reached a consensus on several aspects of viscosupplementation of the hip, with emphasis on the following statements: best indication is for mild to moderate hip arthrosis; it may be indicated in severe osteoarthritis; results may vary according to the characteristics of the viscosupplement used; Viscosupplementation should not be performed as an isolated procedure, but in conjunction with other rehabilitation and pharmacological measures; best injection technique should be based on anatomical references coupled with imaging guidance; it is a cost-effective procedure. Conclusion: Viscosupplementation is a safe and effective therapy for hip osteoarthritis, even in severe cases. Guided injection is recommended. Level of Evidence V, Expert Opinion.
ARTHROSCOPIC FOOT AND ANKLE SURGERY: BRAZILIAN SURGEON PROFILE
Authors: SANTOS LUÍS EDUARDO PINHEIRO DOS , PAGNANO RODRIGO GONÇALVES , PEREIRA FILHO MIGUEL VIANA , FREITAS MÁRCIO DE FARIA , DINATO MAURO CESAR MATTOS E
Published: November 2022

ABSTRACT Objective: To study the profile of the practice of arthroscopy among ankle and foot surgeons in Brazil and its evolution in recent years. Methods: Observational, cross-sectional study, using a survey sent to all members of the Associação Brasileira de Medicina e Cirurgia do Tornozelo e Pé (ABTPé) in 2017 and 2019. Results: In total, 75 surgeons participated in 2017 and 82 in 2019 and most had over 10 years of experience. Of these, 56 participants in 2017 (75%) and 68 in 2019 (82%) used arthroscopy. The number of specialists with no to five years of experience (p = 0.027) and who learned the technique during fellowship (p = 0.007) increased. The use of the 4.0 mm optics and 30° optics (p = 0.040) increased whereas the routine use of traction (p = 0.049) and radiofrequency (p = 0.002) decreased. The main pathology treated with anterior ankle arthroscopy was bone injury. The most frequent complication was neuropraxia. Conclusion: Most of the foot and ankle surgeons who use arthroscopy have more than 10 years of experience, performed anterior access, and are concentrated in the Southeast region of the country. The number of younger surgeons who learned the technique during fellowship increased. Level of Evidence III, Cross-Sectional Comparative Study.
NEOLIBERALISMO E A CONSTRUÇÃO DO SUJEITO CRIATIVO
Authors: Ultramari Leonardo Roman , Nazario Luciano Da Costa , Pacce Benjamin Dias , Martins Eduardo Teixeira
Published: November 2022

Resumo: O presente artigo visa a problematizar o lugar da categoria “sujeito criativo” na contemporaneidade, assim como suas vinculações com os padrões estabelecidos pelas práticas de mercado. Foram analisados dois discursos midiáticos proferidos no programa Saia Justa (GNT) e em um comercial do programa Shark Tank (ABC), ambos voltados à criatividade e ao empreendedorismo no contexto da pandemia de covid-19. A metodologia de análise teve como base a Análise de Discurso de linha francesa. Os resultados evidenciam um sujeito criativo construído a partir de um mecanismo neoliberal que (a) silencia discursivamente a contradição desigualdade-universalidade; (b) atribui valor à criatividade (e ao sujeito criativo) a partir da lógica de mercado (consumo e concorrência); e (c) induz, pelo processo de interpelação, o sujeito a identificar-se com este Outro neoliberal e regular suas volições criativas a partir desse.
O ENSINO DE TERMODINÂMICA CLÁSSICA: TECNOLOGIAS ATUAIS E PERSPECTIVAS FUTURAS
Authors: Nascimento Ruthinéia Jéssica Alves do , Almeida Carolayne Ferreira de , Maia Filipe da Silva , Fernandes Fabiane Rodrigues , Vescovi Vinicius
Published: November 2022

Os conhecimentos teóricos associados à termodinâmica clássica estão presentes nos mais diversos ramos das ciências e da engenharia, sendo de extrema importância para a compreensão dos fenômenos do cotidiano até fenômenos complexos, que estão conectados às grandes descobertas científicas do mundo moderno. No entanto, é comum observarmos elevada dificuldade no processo de ensino e aprendizagem deste tema, atrelada, em muito, a utilização da metodologia tradicional de ensino e a grande desmotivação dos discentes. Neste contexto, este estudo objetiva mapear metodologias ativas e as principais tecnologias educacionais utilizadas atualmente para tornar o ensino da termodinâmica clássica lúdico e visual para os discentes. Para tanto, buscou-se realizar uma revisão sistemática da literatura na plataforma de pesquisa Mendeley, no recorte temporal de 2018 a 2021 e idioma português. Além disso, foi realizada uma busca por jogos, aplicativos e sítios eletrônicos de acesso livre, nas plataformas digitais Google play e Google busca, resultando em cinco (5) jogos/aplicativos/sítios eletrônicos que foram incluídos para compor a etapa de análise de similares deste estudo. Concluiu-se que existem poucos relatos sobre a utilização de metodologias ativas no ensino de termodinâmica clássica e que o façam de maneira a torná-lo mais lúdico e mais visual. Além disso, os cinco jogos/aplicativos/sítios eletrônicos analisados mostraram uma interface pouco lúdica e visual, e dessa forma tem-se a necessidade de desenvolver novas tecnologias educacionais lúdicas e visuais voltadas para o ensino da termodinâmica clássica nos mais diversos níveis da educação, dentre estas os jogos se destacam.
DIAGNÓSTICO Y MANEJO INTEGRAL DE LA SINUSITIS ODONTOGÉNICA. UNA REVISIÓN SISTEMÁTICA
Authors: Muñoz Brenda , Palma Matias , Quintanilla Fernanda , Bustos Vera
Published: November 2022

La sinusitis odontogénica tiene una alta prevalencia dentro de las patologías del seno maxilar, debido a la proximidad de las raíces de los dientes antrales con el piso del seno maxilar y su vascularización en común. Su diagnóstico y tratamiento son parámetros arduamente investigados, sin embargo, no hay un consenso clínico establecido sobre su manejo más adecuado. Por ello, el objetivo de esta revisión sistemática sin metaanálisis es elaborar una recomendación clínica en base a evidencia disponible y actualizada sobre diagnóstico y manejo de sinusitis odontogénica usando el enfoque GRADE para determinar el nivel de certeza de la evidencia para las recomendaciones; esto contribuirá en una toma de decisiones adecuada para los pacientes con dicha patología.
La base de datos examinada fue Medline vía Pubmed utilizando criterios de búsqueda basados en la pregunta PICO incluyendo estudios de una data máxima de diez años. La selección de estudios fue realizada de manera independiente por los investigadores mediante la plataforma RAYYAN. En los resultados de los 15 estudios analizados se evidenciaron, un estudio de calidad muy alta, seis de calidad alta, cuatro de calidad moderada, uno de calidad baja, tres de calidad muy baja. En cuanto al análisis GRADE, cuatro recomendaciones para diagnóstico y cuatro para tratamiento, contribuyendo a un correcto manejo de la sinusitis odontogénica. Por último, se concluye que la tomografía computarizada de haz cónico el Gold estándar de diagnóstico y su tratamiento requiere de un manejo multidisciplinario.
POTENCIAL ANALÍTICO DOS GÊNEROS DO DISCURSO PARA OS ESTUDOS VARIACIONISTAS
Authors: Lacerda Marcela Langa , Görski Edair Maria
Published: November 2022

Por diferentes vias, estudos variacionistas têm recorrido aos Escritos do Círculo de Bakhtin, particularmente à noção de gêneros do discurso. Este texto objetiva refletir sobre por que os gêneros do discurso são relevantes para os estudos variacionistas, especialmente para os de terceira onda, que têm como questão central a noção de estilo. Por meio de pesquisa bibliográfica, examinam-se parte da literatura da terceira onda variacionista (ECKERT, 2012, 2016, 2018; KIESLING, 2013; COUPLAND, 2007) e parte da literatura da abordagem bakhtiniana (BAKHTIN, 2011, 2014; MEDVIÉDEV, 2012; VOLOCHÍNOV, 2013) com foco na noção de estilo, para (i) indicar alguns pontos de contato entre essas abordagens e (ii) articulá-las, em alguns outros pontos, com vistas a contribuir com a produção de conhecimento em torno do objetivo aqui proposto. Os resultados dessa reflexão indicam que os gêneros do discurso são relevantes para os interesses dos estudos de terceira onda porque (i) o estilo linguístico é uma propriedade dos gêneros do discurso; e (ii) uma compreensão do estilo requer uma compreensão da constituição (social e formal) dos gêneros, estando neles indiciadas categorias de análise que são caras à terceira onda variacionista.
Estratégias pedagógicas de educação física destinadas à preparação dos alunos para o Enem
Authors: Marques Rodrigo , Stieg Ronildo , Santos Wagner dos
Published: November 2022

O artigo analisa, as tensões e os impactos na prática pedagógica dos professores de Educação Física de sete escolas com bom desempenho no Exame Nacional do Ensino Médio (Enem), após inserção desse componente curricular no exame. De caráter qualitativo, configura-se como pesquisa exploratória que assume as narrativas de sete professores de Educação Física do Ensino Médio, vinculados a Secretaria de Educação do estado do Espírito Santo, Brasil.  Os resultados evidenciam que os professores, apesar de fazerem parte da mesma rede de ensino, apresentam diferentes maneiras de fazer sua prática pedagógica, de acordo com as demandas de cada unidade escolar, visando a preparação dos alunos com as habilidades e competências exigidas pelo Enem. Conclui que o Enem trouxe novas demandas para as escolas, acarretando em estratégias didático-metodológicas discutidas nos planejamentos coletivos. Ao mesmo tempo, a entrada da Educação Física nesse exame tem gerado responsabilidades para os professores em preparar os alunos, elaborar questões para os simulados do Enem e garantir sua integração com os demais componentes curriculares.
EXPANSÃO E MERCANTILIZAÇÃO DOS CURSOS DE PEDAGOGIA: DEFORMAÇÃO EM LARGA ESCALA DE FUTUROS PEDAGOGOS
Authors: Minhoto Maria Angélica Pedra , Bielschowsky Carlos Eduardo , Aguiar Thiago Borges de
Published: November 2022

Este artigo traz a análise das características da expansão dos cursos de pedagogia no Brasil, especialmente na última década, com base em dados do Censo da Educação Superior e do Exame Nacional do Desempenho do Estudante (Enade), do Inep, atualizados até 2021. O processo de expansão do curso de pedagogia segue duas tendências. Em nível macro, tem-se o processo de crescimento da educação privada de nível superior, especialmente concentrada em poucos grupos financeirizados. Em nível micro, tem-se um conjunto de induções legais para que a formação de professores ocorra em nível superior e a consolidação do curso de pedagogia como lugar privilegiado da formação de professores para educação infantil e anos iniciais do ensino fundamental em oposição a outros cursos como o curso normal superior. Os resultados apresentados por este trabalho apontam para o que foi aqui denominado como “deformação em larga escala”, considerando a crescente concentração das matrículas em universidades privadas centradas quase que exclusivamente no ensino (com pouca articulação com pesquisa e extensão), em cursos à distância, com altas taxas de evasão e baixas notas no Enade na comparação com instituições públicas federais e estaduais.
THREE-DIMENSIONAL NONSTATIONARY FLOW OF TWO IMMISCIBLE FLUIDS IN A ROTATING HORIZONTAL CYLINDER
Authors: Magdenko Evgeniy P.
Published: November 2022

The three-dimensional nonstationary axisymmetric flow of two immiscible viscous fluids in a rotating horizontal cylinder is studied. The interface between the fluids is assumed to be flat and undeformable. The full energy condition at the interface is taken into account. The mass forces are neglected. The velocity field of the Himenz type is considered. For the solution of the nonlinear initial boundary value problem, the modified Galerkin method and the Runge-Kutta method have been applied. It is shown that, with an increase of time, the numerical solution of the nonstationary problem tends to the stationary regime.
Employee Effects on Organizational Outcomes: Korean Travel Industry
Authors:   People&Global Business Association, Seo Heon
Published: November 2022

Purpose: This study aimed to identify the structural relationships among the self-efficacy, job satisfaction, organizational commitment, and customer orientation of travel agency employees in Seoul, Korea.
Design/methodology/approach: Questionnaires were distributed to 250 potential respondents between February 1 and February 20 of 2020. The 225 valid cases were employees at travel agencies in Seoul. Data from the self-ad- ministered questionnaires were used to perform frequency, factor, and regression analyses.
Findings: The study devised six hypotheses based on a review of the previous literature. The results found that self-efficacy positively influenced organizational commitment and job satisfaction, job satisfaction positively influenced customer satisfaction and organizational commitment, and self-efficacy and organizational commitment positively influenced customer orientation. Unlike previous studies, the validity and reliability of the constructs measuring the underlying factors were tested, and new measurement items were developed. The variation found among the statistical relationships provides support for strategic implications and fundamental data for personnel policies in the travel industry.
Research limitations/implications: This study’s respondents’ self-efficacy was positively influenced by job satisfaction, organizational commitment, and customer orientation. Future studies may extend samples across the provinces in Korea for a comparative assessment of the results. Also, because the study focused on emotional commitment and do not consider other types of commitment, future studies should include measures of more of the dimensions of commitment to analyze relationships between organizational effectiveness and organization achievements.
Originality/value: This study provides original and important results on the relationship between organizations and their employees.
INFLUENCE OF DIE CASTING SPEED ON PROPERTIES OF CASTING BASED ON AL-SI ALLOYS
Authors:   Technical University of Kosice, Faculty of Manufacturing  Technologies with a seat in Presov, Slovak Republic, RUZBARSKY JURAJ
Published: November 2022

The paper focuses on the research of the influence of chosen technological parameters of die casting on the selected mechanical properties of castings based on Al-Si alloys. The experiments conducted within the frame of the practical part examined the plunger pressing speed in the mould cavity influencing the mechanical properties of a casting which were represented by ultimate tensile strength and percentage share of porosity of Al-Si castings. Plunger pressing speed is closely related to mould cavity filling mode which affected the final porosity of casting. In the case of increased percentage porosity share, the ultimate tensile strength decrease was detected due to the reduction of the cross-section area of the casting. The increase in percentage porosity share in the casting was caused by the increase in plunger pressing speed. To achieve the desired quality of castings, higher production efficiency, and reduced occurrence of faulty pieces during production, an optimal set of technological parameters of die casting is inevitable.
Controlling Effect of HSABC Algorithm on the Unit Commitment of Power System Operation
Authors: NA Arif , Hiyama Takashi
Published: November 2022

The total operating cost may be expressed in an Economic Power System Operation (EPSO). Technically, this fee is presented to meet total demand for load by individual generating unit costs based on the schedule of engaged energy outputs (EEO). The minimum operating cost is currently achieved by considering economic and emission dispatches, which are made up of the problem of a combined economic and emission dispatch (CEED). The latest artificial intelligent calculation, Harvest Season Artificial Bee Colony Algorithm, is used to identify EEO using the IEEE-62 bus system based on a low cost of CEED. The results of the simulation show that HSABC has short time and rapid convergences. Space areas have various impacts on the performance of HSABC Algorithm on the CEED.