bluuebunny/crossref_metadata_2025_split huggingface dataset:
Synapse-Specific Modulation of Synaptic Responses by Brain States in Hippocampal Pathways
Authors: Rampon Manon , Carponcy Julien , Missaire Mégane , Bouet Romain , Parmentier Regis , Comte Jean-Christophe , Malleret Gael , Salin Paul A. 
Published: January 2023

Synaptic changes play a major role in memory processes. Modulation of synaptic responses by brain states remains, however, poorly understood in hippocampal networks, even in basal conditions. We recorded evoked synaptic responses at five hippocampal pathways in freely moving male rats. We showed that, at the perforant path to dentate gyrus (PP-DG) synapse, responses increase during wakefulness compared with sleep. At the Schaffer collaterals to CA1 (SC-CA1) synapse, responses increase during non-REM sleep (NREM) compared with the other states. During REM sleep (REM), responses decreased at the PP-DG and SC-CA1 synapses compared with NREM, while they increased at the fornix to nucleus accumbens synapse (Fx-NAc) during REM compared with the other states. In contrast, responses at the fornix to medial PFC synapse (Fx-PFC) and at the fornix to amygdala synapse (Fx-Amy) were weakly modulated by vigilance states. Extended sleep periods led to synaptic changes at PP-DG and Fx-Amy synapses but not at the other synapses. Synaptic responses were also linked to local oscillations and were highly correlated between Fx-PFC and Fx-NAc but not between Fx-Amy and these synapses. These results reveal synapse-specific modulations that may contribute to memory consolidation during the sleep–wake cycle.SIGNIFICANCE STATEMENTSurprisingly, the cortical network dynamics remains poorly known at the synaptic level. We tested the hypothesis that brain states would modulate synaptic changes in the same way at different cortical connections. To tackle this issue, we implemented an approach to explore the synaptic behavior of five connections upstream and downstream the rat hippocampus. Our study reveals that synaptic responses are modulated in a highly synapse-specific manner by wakefulness and sleep states as well as by local oscillations at these connections. Moreover, we found rapid synaptic changes during wake and sleep transitions as well as synaptic down and upregulations after extended periods of sleep. These synaptic changes are likely related to the mechanisms of sleep-dependent memory consolidation.
Synthesis of Mxene-PVDF Composite Nanofiber Cloth
Authors: Sugaseni Sounderajan  , Rajan Jose , Ling Jin Kiong 
Published: January 2023

Electrospinning is a versatile and low-cost technology in producing polymer fibers with diameter ranging from a few microns to nanometers, which can be suitably twisted to make yarns. The aim of this research is to synthesize MXENE-incorporated poly(vinylidene fluoride) (MXENE@PVDF) nanofiber using electrospinning method. The effect of MXENE-to-PVDF ratio on the properties of the nanofiber is studied to investigate its suitability as the separator for energy storage devices. The formation of MXENE@PVDF nanofibers through electrospinning method was confirmed through Field-Emission Scanning Electron Microscope (FESEM). X-ray powder diffraction spectroscopy (XRD) was utilized to study the sample crystallinity and to confirm presence of MXENE. The presence of MXENE was further validated through observing the interaction of functional group between MXENE and PVDF through Fourier-transform infrared spectroscopy (FTIR). The main purpose of this project is to formulate a polymeric solution using MXENE and PVDF with desirable rheological properties such that a polymeric mat can be synthesized using electrospinning.
Regenerated Cellulose from Oil Palm Empty Fruit Bunch using Ionic Liquids Mixture
Authors: Hassin Noor Syafiqah , Misnon Izan Izwan , Roslan Rasidi , Ahmad Mohd Rozi , Jasmani Latifah , Rajan Jose 
Published: January 2023

This work focused on the synthesis of regenerated cellulose (RC) using ionic liquids (ILs) mixture of 1-Ethyl-3-methylimidazolium acetate (EMIMAc) and 1-Ethyl-3-methylimidazolium chloride (EMIMCl) with oil palm empty fruit bunch (OPEFB) cellulose pulp. The IL-OPEFB mixture were prepare at temperature of 100 oC and stirring speed of 270 rpm; subsequently undergoes dry-jet wet spinning using self-designed water coagulation bath. The morphology, structural, and mechanical properties of regenerated cellulose filament (RCF) were characterized by scanning electron microscope (SEM), optical microscopy, Fourier-transform infrared spectroscopy (FTIR), thermal gravimetric analysis (TGA) and tensile machine. An Ioncell-type RCF was obtained is showing good mechanical properties with a tensile strength of 160.45 ± 0.699 MPa, a tenacity of 8.774 ± 0.699 cN/tex, Young’s modulus of 83.245 ± 1.183 MPa and 12.92% elongation at break. The RCF had a smooth surface with a round, rigid and hard to break structure are foreseen to have wide applications in sustainable material technology.
Mengukur Ketercapaian Kualitas Pendidikan Perguruan Tinggi Era Pandemi dan Liyan dalam Perspektif Fenomenologis
Authors: Indrawati Lilik 
Published: January 2023

Pentingnya suatu pendidikan sudah ada sejak masa Thomas Aquinas seperti Socrates yang mempercayai bahwa manusia tidak akan melakukan suatu perbuatan yang jahat dengan tujuan jahat, Riyanto (2013:136). Namun beberapa realitas sosial di Indonesia hari ini menunjukkan di sisi lain krisis moral juga semakin meningkat. Hal ini tentu menjadi sebuah kepincangan dalam dunia pendidikan. Liyan adalah mereka yang tersisihkan, bisa jadi mahasiswa yang tidak dapat mengikuti kuliah dengan efektif, dikarenakan berada di daerah terpencil, atau dapat pula liyan yang dimaksud adalah dosen yang sudah berusia, tidak mampu mengikuti teknologi yang ada. Analisis data penelitian ini menggunakan model analisis Miles Huberman (1992) yang terdiri dari tiga tahapan, yaitu reduksi data, display data, serta penarikan dan verifikasi kesimpulan. Tujuan penelitian ini adalah menggambarkan pembelajaran daring yang diselenggarakan di Prodi Manajemen Universitas Katolik Darma Cendika Surabaya sebagai upaya dalam mengukur ketercapaian kualitas pendidikan perguruan tinggi era pandemi dan liyan dalam perspektif fenomenologis. Penelitian ini menggunakan metode kualitatif, dengan menggunakan wawancara melalui informan, yaitu 4 mahasiswa (semester 1, 3, 5 dan 7) serta 3 dosen tetap pada Universitas Katolik Darma Cendika Surabaya. Untuk selanjutnya mahasiswa akan disebut mahasiswa 1, 2, 3 dan 4. Begitu pula dosen disebut dosen 1, 2 dan 3. Wawancara dimaksudkan agar mampu menggali peristiwa-peristiwa yang seakan tidak lain merupakan makna itu sendiri (Riyanto, 2018:139). Hasil dari penelitian ini menyatakan bahwa kualitas pendidikan perguruan tinggi makin menurun pada era pandemi dan liyan dalam perspektif fenomenologis.
Some Remarks on Bernardo Segni’s Translation of Ethica Nicomachea
Authors: Cufalo Domenico 
Published: January 2023

In the middle of the sixteenth century, Bernardo Segni (Florence, 1504 – Florence, 1588) published some Italian translations with commentaries on some works of Aristotle. He was not a scholar nor did he have a university affiliation nor could he boast a deep knowledge of Greek language, but he worked in the cultural climate of Duke of the Florentine Republic Cosimo I (Florence, 1519 – Florence, 1574) and of the Florentine Academy, whose aim was to raise the cultural centrality of Florence and its dialect. In this paper I analyze some passages of his translation and commentary on Aristotle’s Ethica Nicomachea (Florence 1550; reprint Venice 1551). Through this examination some characteristics of the author’s work emerge, such as his didactic purposes, which may be related to the type of his audience, his (poor) knowledge of classical authors and sources, and his tendency towards continuous dialogue with the present.
Emotional Violence from the Page to the Screen: Moral Abuse and Psychological Manipulation in The Age of Innocence from Edith Wharton to Martin Scorsese
Authors: Festa Beatrice Melodia 
Published: January 2023

Martin Scorsese declared that The Age of Innocence is the most violent film he ever made. This contribution aims to examine Scorsese’s representation of emotional violence on screen as opposed to Wharton’s illustration of psychological and emotional abuse in the novel. The essay aims to explore violence in The Age of Innocence, represented both in the novel and in the film as a subtle and crucial theme, so as to examine how Scorsese’s adaptation contrasts with Wharton’s narrative. As such, this interpretation aims to prove how The Age of Innocence stands apart, because of its significance in Scorsese’s career, and how both novel and film go way beyond the conventions of romance by illustrating female emancipation through an exquisite display of moral abuse and psychological manipulation, which Scorsese re-elaborates on screen through a devastating sense of moral frustration. Charting parallels between the novel and the film, the analysis will show how Scorsese re-elaborates a non-graphic form of violence, earlier outlined in the novel by Wharton, through a devastating visual tension. Ultimately, this analysis seeks to offer a reinterpretation of Wharton’s novel through Scorsese’s film adaptation.
Az „Alsóban az élet” című hazai talajállapotot célzó közösségi tudomány program első tapasztalatai és eredményei
Authors: Árvai Mátyás , Takáts Tünde , Kovács Zsófia Adrienn , Takács Katalin , Balog Kitti , László Péter , Imréné Takács Tünde , Mészáros János , Pásztor László 
Published: January 2023

A közösségi tudomány – citizen science – már évtizedek óta működő kutatási forma, ahol egy-egy kutatás a lakosság segítségével valósul meg. Az „Alsóban az élet” kampány az érdeklődők bevonásával 2021 tavaszán indult hazánkban. A kutatásban résztvevők kézhez kaptak egy pamut alsóneműt, amelyet kb. 20 cm-es mélységben kellett elásniuk, ezzel „táplálékot” szolgáltatva a talajlakó élőlények számára. Több mint két hónap elteltével az alsónemű kiásása után megfigyelhetők a bomlási jelek, amelyek mint indikátor jelzik a talajélet aktivitását, közvetett módon a talaj egészségi állapotát. A visszamaradt alsóneműk digitális fotójának elemzésével becsülhető a talajlakó élőlények munkája az alsónadrágok bomlásának százalékos aránya alapján.A közösségi médiában megjelent felhívások és célzott csoporthirdetések segítségével mintegy 1193-an jelentkeztek a programra összesen 1966 helyszínnel, ezzel országos lefedettséget biztosítva a kutatás részére. Az adatok elemzése alapján a gondozott konyhakertekben elásott pamut alsók mutatták a legnagyobb átlagos bomlási értékeket (27,67%). Talajtípust tekintve a réti talajok és a közép- és délkeleteurópai barna erdő-, valamint a csernozjom-, és a váztalajok (köztük nagyrészt a humuszos homoktalajok) esetén tapasztaltuk a legmagasabb, közel azonos, 25,47%; 25,43%; 24,22%; 24,21%-os bomlási értéket. A programban résztvevő helyszínek közül a legnagyobb mértékű bomlás (93%) konyhakert hasznosítású (mulcsozott veteményes és polikultúra ágyás) váztalajon (homoktalajon) volt megfigyelhető. Az országos átlagos bomlási érték 24,57% volt. A bomlási adatok alapján eredménytérképet szerkesztettünk Magyarország teljes területére, melyet nyilvánossá tettünk, s a résztvevőknek a visszaküldött fotó feldolgozása alapján rövid, a saját talajának biológiai aktivitását minősítő válaszlevelet küldtünk.
INVESTIGATION OF THE INFLUENCE OF SPECIMEN MANUFACTURING PARAMETERS BY THE SELECTIVE LASER MELTING (SLP) METHOD AND COMPARATIVE STUDIES OF THE MECHANICAL PROPERTIES OF ALUMINUM ALLOY AlSi10Mg
Authors: Adjamskiy S. , Kononenko G. , Podolskyi R. 
Published: January 2023

Purpose. To work out the modes of manufacturing samples from aluminum alloy AlSi10Mg with a layer thickness of 40 microns using SLP technology, studying their mechanical properties, and comparing them with the traditional method of production.
Research methods. To determine the structural state of alloys, optical microscopy was used, granulometric analysis was performed using a scanning electron microscope, mechanical properties were determined according to the standard method using a tearing machine; porosity was determined based on the results of microstructural analysis as a percentage of the area occupied by pores.
Results. It was established that when the scanning speed is increased to 1200 mm/s, the distance between the tracks plays a significant role in obtaining high density. From the analysis of mechanical properties, it was established that the samples made by SLP technology have a higher value of tensile strength by 28%, and smaller plastic characteristics (relative elongation and relative reduction) by 17.4% and 31.7%, respectively, compared to the traditional production method.
Scientific novelty. The dependence of the change in the density of the experimental samples made by the SLP technology with AlSi10Mg on the manufacturing parameters is shown. It was established that at a scanning speed of 1000...1100 mm/s, the pore size is on average from 2...7 μm and for samples made at a scanning speed of 1200 mm/s - from 1 to 5 μm.
Practical value. Application of the obtained results will lead to the manufactured parts with increased strength characteristics.
Synthesis of cast materials based on MAX phases in Cr–Ti–Al–C system
Authors: Gorshkov V. A. , Khomenko N. Yu. , Kovalev D. Yu. 
Published: January 2023

Two variants of the self-propagating high-temperature synthesis process, namely SHS from elements and SHS metallurgy, were combined to obtain cast materials based on the MAX phases of Cr2AlC and (Cr0,7Ti0,3)2AlC. Experiments involved mixtures with compositions calculated according to the chemical scheme 70%(Cr2O3 + 3Al + C)/(2Ti + Al + C) + + 30%(3CaO2 + 2Al). Synthesis was carried out in a 3 l reactor at an argon pressure of 5 MPa. The structure and phase composition of the reaction product were studied by X-ray diffraction and scanning electron microscopy. It was found during the research that the ratio of original reagents has a significant effect on the synthesis parameters and phase composition of desired products. The possibility of obtaining a cast material based on the titanium-doped Cr2AlC phase was shown. It was found that the resulting product is a composite material based on the (Cr1–хTiх)2AlC (х = 0,18÷0,28) phase, and the content of this phase is 43–62 wt.% depending on the original ratio of reagents. The material microstructure features by the presence of laminate layers with carbide grain inclusions. The end product contains carbide (Ti0,9Cr0,1C, Cr7C3, Cr3С2)and intermetallic (Al8Cr5, AlTi3) impurities due to the insufficient life time of a melt formed in the combustion wave.
Electrode processes in the production of microdispersed titanium powder by volumetric electrolytic reduction of its ions with sodium dissolved in the BaCl2–CaCl2–NaCl melt in the absence of titanium halides in the initial melt
Authors: Lebedev V. A. , Polyakov V. V. 
Published: January 2023

The paper is devoted to a detailed study of cathodic processes, their influence on the anode process, and electrolysis performance. The polarization of a steel cathode in a CaCl2–BaCl2–NaCl melt at t = 610 °C was measured. The polarization curve clearly shows the potentials and current densities of the formation of a saturated sodium solution in the electrolyte (Esat = –2.97 V, ic = 0.04 A/cm2, lgic = –1,4), and the occurrence of sodium metal on the cathode (ENa = –3.22 V, iNa = 0.12 A/cm2, lgiNa = –0.92).The value of Esat was used to calculate the concentration of sodium in the electrolyte at t = 610 °С (1.3·10–4 mol. fr.). The values of Esat, ENa, and their difference (E = 0,25 В) were confirmed by long-term electrolysis. These fundamental characteristics are the basis for process control and management. During long-ter 3 regions close to rectilinear ones were revealed: the discharge of sodium ions from supersaturated solutions at E more negative than Esat (from ENa to Esat), from mixtures of supersaturated and saturated solutions (at a constant E equal to Esat), from diluted solutions (with E more positive than Esat). The activity coefficients of sodium in supersaturated solutions are close to 1, which ensures their increased reducing ability. Maximum degrees of supersaturation (>100) are created at formation and decomposition on the cathode of metallic sodium nuclei, which are sufficient to intensify and prolong electrolysis, to lower the lower temperature limit of its realization from 600 to 350 °С. The formation of metallic titanium in the near-anode layer is explained by the disproportionation of Ti2+ ions entering the near-anode electrolyte from the anode surface and from the near-cathode melt.
La capilla de Sabaletas
Authors: Arroyave Julio Cesar 
Published: January 2023

El doctor Julio Cesar Arroyave es actualmente director de la Biblioteca Pública Piloto para el hemisferio occidental, en Medellín Colombia. Su disciplina primordial intelectual es la filosofía, materia en la cual ha sido profesor en la Universidad de Antioquia y autor de varias obras. Su sensibilidad cultural y gran capacidad de acción, le han llevado a la posicion distinguida que hoy ocupa como director de esta biblioteca de carácter continental. Fruto de sus inquietudes en el campo de la historia, es el informe que hoy publicamos y que nos parece de gran importancia como una contribución a la etnohistoria y además como un estímulo para quienes se dedican a las investigaciones históricas, que en nuestra patria tienen motivos inagotables
Surgical treatment of vulvar cancer with perineal defect reconstruction using a VRAM flap. Clinical case
Authors: Korotkov V. A. , Petrov L. O. , Kasymov M. R. , Pasov V. V. , Skoropad V. Yu. , Tivkova L. V. , Yamshchikova A. S. , Grigoriev N. S. , Abramova O. E. , Naumov N. P. , Kaprin A. D. , Ivanov S. A. 
Published: January 2023

The article presents a clinical case of perineal defect reconstruction using a VRAM flap in a patient with vulvar cancer. Stepwise surgical treatment method is described. A multidisciplinary meeting allows to realize a plan of surgical help for such patients with the goal of treating oncological process and its complications.We have proposed a variant of perineal defect reconstruction through transfer of a vertical rectus abdominis musculocutaneous flap with a vascular pedicle.
Sperm DNA fragmentation in men vaccinated with Gam-COVID-Vac (Sputnik V)
Authors: Sorokina T. M. , Bragina E. E. , Sorokina E. A. , Sedova A. O. , Shtaut M. I. , Kurilo L. F. , Chernykh V. B. 
Published: January 2023

Aim. To perform comparative analysis of sperm characteristics and DNA fragmentation in men vaccinated with GamCOVID-Vac (Sputnik V) and unvaccinated men.Materials and methods. Characteristics ofsemen analysis and DNA fragmentation index in ejaculate samples of 122 men, 28 of whom were vaccinated with Gam-COVID-Vac (Sputnik V), were analyzed. Study participants did not have history of coronavirus infection COVID-19. Vaccinated patients were divided into 2 groups: group 1 (n = 10) included patients for whom the time between full vaccination (2 doses of the vaccine) and ejaculate sampling was shorter than 75 days; and the group 2 (n = 18) included patients for whom the time between vaccination and ejaculate sampling was longer than 75 days. Unvaccinated men comprised the control group (group 3, n = 94). Standard semen analysis was performed in accordance with the accepted laboratory guidelines of the World Health Organization (2010). DNA fragmentation was evaluated using fluorescent labelling of single- and double-strand DNA breaks (TUNEL).Results. Totalsperm countin the group 1 was 265 ± 75 million, in the group 2 – 355 ± 67 million, in the group 3 – 304 ± 26 million. Progressive motile (PR)sperm in the group 1was 18.5 ± 1.9 %, in the group 2 – 23.2 ± 3.0 %, in the group 3 – 18.2 ± 1.1 %. Normal sperm morphology in the group 1 was 4.0 ± 0.5 %, in the group 2 – 5.8 ± 0.9 %, in the group 3 – 4.1 ± 0.3 %. The best ejaculate quality was observed in patients of the group 2, however, no statistically significant differences in semen analysis characteristics between the groups were found. Percentage of sperm with fragmented DNA (DNA fragmentation index, DFI) in the group 1 varied between 4.6 and 31.4 %, in the group 2 between 0.8 and 36.5 %, in the group 3 (control) between 1.3 and 39.8 %. Mean number of germ cells with DNA breaksin the group 1 (12.5 ± 2.4 %) was higher than in the group 2 (10.9 ± 2.0 %) and control group (10.5 ± 0.7 %), but with no statistical significance. Percentage of patients with DNA fragmentation index above the reference value (≤15 %) in the groups 1, 2 and 3 was 20, 22 and 18 % respectively. In 3 of 6 patients with increased DFI in the groups 1 and 2, this value was above the reference level even before vaccination.Conclusion. No significant effect of vaccination with Sputnik V on sperm DNA fragmentation level in men was observed.
Steatocystoma multiplex of the scrotum. Clinical case
Authors: Scheplev P. A. , Rapoport L. M. , Korolev D. O. , Gorinova D. M. , Naumov N. P. 
Published: January 2023

Steatocystoma multiplex is a disorder of the pilosebaceous unit characterized by multiple sebum-containing dermal cysts. We report the case of a 64-year-old male presented with multiple skin-colored, partially hyperemic cystic located in the scrotum area. They were accompanied by an active inflammatory process in the form of pain, swelling, hyperemia. The lesion was present for about 1 month. Previously, this patient had diagnosed with multiple steatocystoma located in the hip area and received surgical treatment.At present, such reports in the scientific databases are presented sporadically, therefore we report on multiple steatocystoma of the scrotal localization due to its rarity.
A Coalition Formation Game for Cooperative Spectrum Sensing in Cognitive Radio Network under the Constraint of Overhead
Authors: Borgohain Utpala , Borkotokey Surajit , Deka S.K 
Published: January 2023

Cooperative spectrum sensing improves the sensing performance of secondary users by exploiting spatial diversity in cognitive radio networks. However, the cooperation of secondary users introduces some overhead also that may degrade the overall performance of cooperative spectrum sensing. The trade-off between cooperation gain and overhead plays a vital role in modeling cooperative spectrum sensing. This paper considers overhead in terms of reporting energy and reporting time. We propose a cooperative spectrum sensing based coalitional game model where the utility of the game is formulated as a function of throughput gain and overhead. To achieve a rational average throughput of secondary users, the overhead incurred is to be optimized. This work emphasizes on optimization of the overhead incurred. In cooperative spectrum sensing, the large number of cooperating users improve the detection performance, on the contrary, it increases overhead too. So, to limit the maximum coalition size we propose a formulation under the constraint of the probability of false alarm. An efficient fusion center selection scheme and an algorithm to select eligible secondary users for reporting are proposed to reduce the reporting overhead. We also outline a distributed cooperative spectrum sensing algorithm using the properties of the coalition formation game and prove that the utility of the proposed game has non-transferable properties. The simulation results show that the proposed schemes reduce the overhead of reporting without compromising the overall detection performance of cooperative spectrum sensing.