bluuebunny/crossref_metadata_2025 huggingface dataset:
Synthesis of cellulose-graft-poly(methyl methacrylate) via homogeneous ATRP
Authors: Xin Ting-Ting , Yuan Tongqi , Xiao Shu , He Jing
Published: June 2023

Cellulose-graft-poly(methylmethacrylate) (cellulose-g-PMMA) copolymers were prepared by homogeneous atom transfer radical polymerization (ATRP) under mild conditions, in an attempt to develop an efficient way to modify the surface of cellulose. A cellulose macro-initiator was successfully synthesized by direct homogeneous acylation of cellulose with 2-bromopropionyl bromide in a room temperature ionic liquid (RTIL), 1-allyl-3-methylimidazolium chloride ([AMIM]Cl). Copolymers were obtained via ATRP of methyl methacrylate (MMA) with CuBr/penta-methyldiethylenetriamine (PMDETA) as catalyst and N,N-dimethyl-formamide (DMF) as solvent without homopolymer byproduct. The grafting copolymers were characterized by 1H-NMR, 13C-NMR, and FTIR. The grafted PMMA chain was obtained by the hydrolysis of the cellulose backbone and analyzed by GPC and TGA measurements. In addition, the assemblies or aggregates formed by cellulose-g-PMMA copolymers were studied by means of TEM and AFM. The results indicated that the graft polymerization occurred from the cellulose backbone and the obtained copolymers had grafted polymer chains with well-controlled molecular weight and polydispersity; the cellulose graft copolymer in solution could aggregate and self-assemble into sphere-like structures.
The effect of the moisture content of wood on the layer performance of water-borne varnishes
Authors: Sönmez Abdullah , Budakçı Mehmet , Pelit Hüseyin
Published: June 2023

The test panels obtained from Scots pine (Pinus sylvestris L.) and Eastern beech (Fagus orientalis L.) were initially adjusted to have 8%, 10%, and 12% moisture content in this study. One-component semi-matte and two-component water borne varnishes were applied on the surfaces in order to investigate the effect of the type and the moisture content of the wood on the hardness and the gloss values as well as the adhesion strength of the varnishes. The hardness of the test samples was evaluated based on the standard ANS/ISO1522, the gloss based on TS.4318 EN ISO 2813, and the adhesive strength based on ASTM D-4541. The results indicated that variations in the moisture content of the wood material adversely affected the layer performance of water-borne varnishes and that the best performance was obtained for the wood with moisture contents of 8% and 10%.
Whey protein-based water-resistant and environmentally safe adhesives for plywood
Authors: Wang Wenbo , Zhao Zongyan , Gao Zhenhua , Guo Mingruo
Published: June 2023

Whey protein is a renewable and environmentally safe biomaterial, a by-product of cheese production. It can be utilized for non-food applications for value-added products. The substances glyoxal (GO), glutaraldehyde (GA), polymeric methylene biphenyl diisocyanate (p-MDI), urea-formaldehyde (UF) resin, and phenol-formaldehyde oligomer (PFO) that contain reactive groups were applied together with whey protein as modifier in order to increase crosslinking density and molecular weight for improving the bond strength and water resistance of whey protein. A water-resistant and environmentally safe whey protein-based wood adhesive for plywood was developed by evaluating the effects of these modifiers on the bond strength, bond durability, and free formaldehyde emission of the resulting plywood panels. Results of FTIR and SEM analyses and bond evaluation indicated that GO, GA, and p-MDI were not suitable to modify whey proteins due to their high reactivity with whey proteins, causing phase separation. UF resin was not a good modifier for whey proteins because of either its poor water-resistance or higher emission of hazardous formaldehyde. Whey protein adhesives modified with PFO had a dry shear bond strength of 1.98 MPa and a 28h-boiling-dry-boiling wet shear strength of 1.73 MPa, which were both much higher than the required values for structural use according to standard JIS K6806-2003, while its formaldehyde emission was 0.067mg/L, much lower than the required value for green plywood according to standard JIS A5908.
Sorption performance of Quercus cerris cork with polycyclic aromatic hydrocarbons and toxicity testing
Authors: Olivella M. Àngels , Jové Patrícia , Şen Ali , Pereira Helena , Villaescusa Isabel , Fiol Núria
Published: June 2023

Quercus cerris is an important oak species extended in large areas of Eastern Europe and Minor Asia that has a thick bark which is not utilized at all. The sorption performance of cork from Quercus cerris bark with four polycyclic aromatic hydrocarbons (PAHs) (acenaphthene, fluorene, phenanthrene, and anthracene) was investigated. Quercus cerris cork was characterized for elemental analysis, acidic groups, and summative chemical composition, and the results were compared with Quercus suber cork. A Microtox® test was carried out to test for the release of any toxic compounds into the solution. All isotherms fit the Freundlich model and displayed linear n values. Quercus cerris exhibited a high efficiency for sorption of PAHs for the studied concentrations (5 to 50 µg/L) with 80-96% removal, while the desorption isotherms showed a very low release of the adsorbed PAHs (<2%). In relation to Quercus suber cork, KF values of Quercus cerris cork are about three times lower. The quantity of Quercus cerris cork required to reduce water pollution by PAHs was estimated to be less than twice the quantity of other adsorbents such as aspen wood and leonardite. Toxicity tests indicated that non-toxic compounds were released into the solution by the Quercus cerris and Quercus suber cork samples. Overall the results indicate the potential use of Quercus cerris cork and of Quercus suber cork as effective and economical biosorbents for the treatment of PAH-contaminated waters.
Use of coconut bagasse as alternative adsorbent for separation of copper(II) ions from aqueous solutions: Isotherms, kinetics, and thermodynamic studies
Authors: Neto Vicente O. Sousa , Oliveira André G. , Teixeira Raimundo N. P. , Silva Marcos A. A. , Freire Paulo T. C. , Keukeleire Denis D. , Nascimento Ronaldo F.
Published: June 2023

The use of coconut bagasse as an adsorbent for the treatment of Cu(II) ions from aqueous solutions has been investigated. The adsorbent was characterized by infrared spectroscopy, including zeta potential and pH effects. To assess the possibility of removing Cu(II) from aqueous solutions by this sorbent the effects of contact time, initial metal ion concentration, and temperature were studied at pH 5.5. Kinetic studies showed that the amount adsorbed increased with initial Cu(II) concentration, and the equilibrium was established in 120 min. The kinetic data were analyzed using a pseudo second-order equation. Adsorption equilibrium data were investigated using the Langmiur, Freundlich, D–R, Temkin and Halsey isotherm models. The adsorption of Cu(II) on the coconut bagasse was endothermic (DH◦ 86.2 kJ/mol), resulting in an increase in entropy (DS◦ 339 J/mol/K) and a decrease in Gibbs free energy (DG -16.34 to -22.44 kJ/mol) in the temperature range of 301-313 K. A reduction in adsorption capacity with an increase in heat of adsorption revealed an ion exchange mechanism for Cu(II) adsorption.
Electroless copper plating of Fraxinus mandshurica veneer using glyoxylic acid as reducing agent
Authors: Wang Lijuan , Sun Lili , Li Jian
Published: June 2023

Copper coating was deposited on Fraxinus mandshurica veneers for preparing EMI shielding composite by electroless plating using glyoxylic acid as reducing agent in the solution. XPS and SEM were used to analyze the activation process. It was found that a continuous chitosan membrane was loaded on the wood surface. XPS results showed that Pd(II) ions were ed on a chitosan membrane on the wood surface through an N-Pd σ coordination bond. After reduction, part of Pd(II) absorbed formed very little Pd(0) particles on the chitosan-treated wood surface. The activated wood veneers were immersed into a plating bath in which copper film was successfully initiated. The coatings were characterized by SEM-EDS, XPS, and XRD. The metal deposition, surface , and electromagnetic shielding effectiveness were measured. The morphology of the coating was uniform, compact, and continuous. The wood grains were preserved on the plated wood veneer, which had a copper-like color and sheen. EDS, XPS, and XRD results indicated that the coating consisted of Cu0 with crystalline structure. The surface resistivity and copper deposition reached 175.14 mΩ·cm-2 and 21.66 g/m2 when the veneer was pretreated with 0.8 % chitosan for 8 min and plated for 30 min at 55 oC. The plated veneers exhibited good electromagnetic shielding effectiveness of over 60 dB in frequency ranging from10 MHz to 1.5 GHz.
Filler loading in the lumen or/and cell wall of fibers – A literature review
Authors: Kumar Pradeep , Negi Yuvraj Singh , Singh Surendra Pal
Published: June 2023

A review of the literature reveals potential advantages that papermakers can achieve by placing minerals in the lumens or cell walls of fibers before the pulp is formed into paper. Loading of filler into the fiber lumen by mechanical deposition or within the cell wall by in-situ precipitation has been reported to generally result in a moderate reduction in light scattering coefficient and increased strength properties of laboratory handsheets, as well as in paper manufactured with pilot plant equipment, when compared to conventional addition of filler. However, there are some exceptions to this general observation, where the fiber loading is reported to decrease the tensile strength of paper. Some related effects can be achieved by either precipitating mineral onto fiber surfaces or co-flocculating mineral particles with cellulosic fines. Challenges remain with respect to the implementation of fiber-loading concepts at a commercial scale. Also, there is a need for further research aimed at establishing high-end applications in which it may be an advantage to load cellulosic fiber cell walls or lumens with minerals or other substances.
NET G3 vs NEC: p53 and Rb1 Immunolabeling in High-grade Gastrointestinal Neuroendocrine Neoplasms - Is It Enough for the Differential Diagnosis?
Authors: Dinu Alexandra , Aschie Mariana , Cozaru Georgeta Camelia , Mitroi Anca Florentina , Grasa Catalin Nicolae , Iordache Ionut Eduard , Deacu Mariana , Orasanu Cristian Ionut , Nicolau Antonela-Anca , Baltatescu Gabriela Izabela
Published: June 2023

Background and Aims: High-grade gastrointestinal neuroendocrine neoplasms (GI-NENs) are divided into well-differentiated G3 neuroendocrine tumors (NETs G3) and neuroendocrine carcinomas (NECs), having identical cut-offs of proliferation, but different biomolecular origins. This translates in distinct treatment choices. Our aim was to establish if p53/Rb1 immunohistochemical status in GI-NENs with Ki67 index >20% can predict the histopathological diagnosis.

Methods: p53/Rb1 immunolabelling was performed on 42 cases of high-grade GI-NENs, diagnosed as NET G3, NEC and mixed neuroendocrine-non-neuroendocrine neoplasms (MiNEN) with NEC component. Immunolabeled slides were digitally scanned, with automatic quantification of p53 and Rb1, blind to the diagnosis.

Results: The p53 positive percentage was stratified; two cut-offs were selected, naming the intervals as N (null, <1%), T (tumor, 1%-20%) and C (carcinoma, >20%). The Rb1 expression loss in >90% of neoplastic cells was considered mutational. NETs G3 mainly showed the T status (14/16, 87.5%), followed by N (1/16, 6.25%) and C (1/16, 6.25%); NECs and NEC components in MiNENs predominantly expressed the C status (19/26, 73.08%), followed by N (5/26, 19.23%) and T (2/26, 7.69%) (p<0.001, χ 2 =27.017). NET G3s showed positive expression for Rb1; 73.08% of NECs expressed negative Rb1 (p<0.001, χ 2 =21.351). NECs and NEC components in MiNENs showed Rb1 mutational status in 13 C cases (13/19, 68.42%), 4 N cases (4/5, 80%) and in both the T cases (p=0.002, χ 2 =11.187).

Conclusions: Our results highlight the correlations between the p53/Rb1 immunostainings and the histopathological diagnosis of high-grade GI-NENs. NECs and NEC components in MiNENs showed a p53 mutational status (0% or 21-100%) and predominantly negative Rb1 expression. NETs G3 showed a p53 wild-type status (1-20%) and retained Rb1 expression. These findings suggest that the differential diagnosis of high-grade GI-NENs may benefit from p53/Rb1 immunohistochemical tests in everyday practice.
Contribution of MicroRNAs in the Development of Irritable Bowel Syndrome Symptoms
Authors: Thomas Dupont Pablo , Izaguirre-Hernández Irma Yadira , Remes-Troche José María
Published: June 2023

Irritable bowel syndrome (IBS) is a common chronic functional gastrointestinal disorder defined by disturbances in bowel habits and abdominal pain, in the absence of known organic pathology that affects between 5 to 10% of healthy populations. Despite improvements in detection and treatment, the pathogenesis of IBS has not been clarified. Several microRNAs (miRNAs) are involved in the pathogenesis of IBS through increased intestinal permeability, inflammation, and modulation of visceral hyperalgesia, and they may have the potential to be used as biomarkers and therapeutic targets. Here, we have summarized the recent advances about the role of miRNAs in the development of IBS symptoms and the possibility to use them as therapeutic targets to mitigate symptoms in IBS.
Activated Hepatic Stellate Cells (Ito Cells) - Marker of Advanced Fibrosis in Chronic Viral Hepatitis C: A Pilot Study
Authors: Sufletel Rada Teodora , Stanca Melincovici Carmen , Orășan Olga Hilda , Zaharie Toader , Gheban Bogdan Alexandru , Istrate Alexandru , Constantin Anne-Marie , Mihu Carmen Mihaela
Published: June 2023

Background and Aims: The aim of this study is to determine whether activated hepatic stellate cells (HSCs) may represent a prognostic marker of progressive liver fibrosis in chronic viral hepatitis C (VHC) before antiviral therapy. The possible correlation between HSCs immunohistochemical features, histopathological aspects and clinical data before therapy were also studied.

Methods: This retrospective pilot study was conducted on 27 liver biopsies from VHC patients before antiviral therapy. HSCs’s immunohistochemical analysis used the antibodies alpha-smooth muscle actin (α-SMA), glial fibrillary acidic protein (GFAP) and vinculin. We correlated immunopositive HSCs with HCV load, liver stiffness (LS), fibrosis stage and necro-inflammatory degree before treatment. Also, we assessed the association between liver fibrosis after therapy, the sustained virological response at 12 weeks after therapy (SVR 12) and the type of therapy.

Results: HSCs were increased in VHC patients compared to controls, mainly in the intermediate and periportal lobular regions. α-SMA and vinculin HSCs correlated positively with fibrosis stage (p=0.044), (p=0.028). Furthermore, α-SMA and vinculin HSCs were associated with LS (p=0.027), (p=0.002) and viral load (p=0.021), (p=0.006), but not with necro-inflammation degree. GFAP HSCs inversely correlated with fibrosis stage (r= -0.475), LS (r= -0.422) and HCV load (r= -0.517), but positively with necro-inflammation degree (p=0.038). Liver fibrosis post therapy correlated positively with SVR12 (p<0.001) and the type of therapy (p=0.006) and SVR12 correlated positively with treatment’s type (p=0.002).

Conclusions: Activated HSCs may represent a marker of increased liver fibrosis in VHC. Different immunohistochemical markers can detect various HSCs subpopulations involved in the evolution of VHC and liver fibrosis.
Endoscopic Mucosal Resection of Non-pedunculated Colorectal Polyps ≥20mm: Outcome in a Self-taught Skills Environment
Authors: Casper Markus , Krawczyk Marcin , Lammert Frank
Published: June 2023

Background and Aims: Endoscopic mucosal resection (EMR) of non-pedunculated colorectal polyps ≥20mm is technically demanding and should preferentially be performed by specialist endoscopists in referral centres. Little is known about the outcome in institutions establishing this competency. Here, we report the learning curve on 100 consecutive large non-pedunculated polyps resected by a single endoscopist with self-taught acquisition of skills.

Methods: We analysed data on 100 non-supervised EMR procedures performed at our academic endoscopy centre (2016-2021), representing a single endoscopist’s learning curve beginning with the first polyp ≥20 mm.

Results: The median polyp size was 30 mm (20-70mm), and 61% of all polyps were ≥30 mm. Predominant polyp morphology was 0-Is (34%) or 0-IIa (47%), and most polyps developed in the ascending colon (36%). In total, 20% of polyps showed high-grade intraepithelial neoplasia, and 8% included pT1 carcinoma. Adenoma recurrence rate after piecemeal resection was 21%. All but one recurrent adenoma were treated endoscopically. Deep mural injury, intra-procedural bleeding and post-procedural bleeding were detected and managed endoscopically in 3%, 21%, and 4% of procedures, respectively. Overall, surgery could be avoided in 91% of all and 98% of non- malignant polyps. Results for the first 50 polyps did not differ from results for the following polyps.

Conclusions: Structured training is advisable to acquire advanced EMR skills. Our data show that autonomous acquisition of skills after finishing a training course represents an acceptable alternative with good results in the setting of an open error culture. Continuous review of outcome parameters and complication rate is mandatory during the learning process.
A Rare Cause of Abdominal Pain: IgG4-Related Sclerosing Mesenteritis
Authors: Archer Sara , Pereira-Guedes Tiago , Fonseca Tomás , Carvalho Sá Diogo , Pedroto Isabel
Published: June 2023

A 67-year-old man with previous cardiovascular disease was referred to our consultation due to a 5-month history of recurrent epigastric pain. Esophagogastroduodenoscopy and full blood workup presented no alterations. CT scan showed an irregularly shaped mass at the root of the mesentery, measuring 40x25x47mm, with spiculated contours and retractile behaviour (a). Simultaneous densification of the adjacent fat and infracentimetric ganglionic formations scattered throughout the mesentery were shown. Surgical biopsy revealed extensive storiform fibrosclerosis, with the presence of interstitial lymphoplasmocytic infiltrate and obliterative phlebitis (b); the plasma cells had mostly IgG expression, with IgG4:IgG ratio >40% (c), accounting for more than 30- 40 IgG4 plasma cells per field. The serum IgG4 level was 137mg/dL. A diagnosis of IgG4-related sclerosing mesenteritis was made, without other organ involvement. Prednisolone (0.6mg/kg/d) improved partially the abdominal pain, so steroid sparing strategy with off-label rituximab was associated.

Due to its low prevalence, the understanding of this entity is scarce, and its diagnosis is challenging. Unlike other manifestations of IgG4-related disease, the intra-abdominal disease is identified in later stages, due to unspecific symptoms. This case aims to raise awareness about this condition as a differential diagnosis of abdominal pain.
The Influence of Intravenous Lidocaine Infusion on Postoperative Outcome and Neutrophil-to-Lymphocyte Ratio in Colorectal Cancer Patients. A Pilot Study
Authors: Alexa Alexandru Leonard , Ciocan Andra , Zaharie Florin , Valean Dan , Sargarovschi Sergiu , Breazu Caius , Al Hajjar Nadim , Ionescu Daniela
Published: June 2023

Background and Aims: In the last years increasing scientific evidence drew attention on the potential effects of anesthetic drugs on postoperative outcome in cancer patients. Local anesthetics, especially lidocaine, have been intensively studied in relation with postoperative outcome in colorectal cancer patients. Our study objectives were to investigate the effects of perioperative intravenous lidocaine infusion on neutrophil-to-lymphocyte ratio and short-term postoperative outcome. Additionally, we also looked at 1 year outcome after intended radical colorectal cancer surgery.

Methods: 150 patients scheduled for colorectal cancer surgery were randomized to receive sevoflurane anaesthesia with or without 48 hours lidocaine infusion.

Results: 73 patients were included in the group A (sevoflurane) and 77 in the group B (sevoflurane with lidocaine). Lidocaine infusion did not modify neutrophil-to-lymphocyte ratio at 24 hours after surgery (p=0.58). Patients receiving intravenous lidocaine had significantly lower morphine consumption (p=0.04), faster mobilization time (p=0.001) and fewer days spent in the hospital (p=0.04). Moreover, at 1 year follow- up, patients in group B had a significant decreased rate of recurrences (p=0.03). There was no significant difference in 1 year survival (p=0.22).

Conclusions: In our study, intravenous lidocaine infusion hastened the postoperative recovery of patients in terms of mobilization, hospital discharge and opioid consumption and reduced 1 year recurrence rate. Further studies on larger groups of patients are needed.
Effect of ethylthiosulfаnylate in combination with vitamin E on certain biochemical blood parameters and hematological indicators in rats under the influence of Cr(VI)
Authors:   Institute of Animal Biology NAAS, 38 V. Stusa str., Lviv, 79034, Ukraine, Kotyk B. І.
Published: June 2023

The aim of our study was to investigate the effect of ethylthiosulfаnylate, a representative of the class of thiosulfonate compounds, in combination with vitamin E on certain biochemical blood parameters, hematological indicators and total Chromium content in liver of rats exposed to Cr(VI). Laboratory rats were divided into 8 groups of 5 animals each. Animals of group I (intact control) were injected daily intraperitoneally with 150 μl of physiological saline solution for 7 days. Rats of III/IV groups received intraperitoneal daily administration of K2Cr2O7 (diluted in physiological saline solution at a dose of 2.5 mg Cr(VI)/kg) for 7/14 days. Animals of the II experimental group were injected daily intragastrically with 1000 μl of sunflower oil for 14 days. Rats of V/VI experimental groups were administrated daily intragastrically with 1000 μl of an oil solution of vitamin E (20 mg/kg)/vitamin E (20 mg/kg) in combination with ethylthiosulfаnylate (100 mg/kg) for 14 days. Animals of VII/VIII experimental groups were injected daily intragastrically with 1000 μl of an oil solution of vitamin E (20 mg/kg) in combination with ethylthiosulfаnylate (100 mg/kg) for 14 days, after which a 7-day/14-day period of intraperitoneal K2Cr2O7 administration was performed. Exposure to Cr(VI) led to a decrease in the number of erythrocytes, leukocytes, content of hemoglobin, phospholipids, total protein against the background of the accumulation of total lipids, mono- and diglycerides, non-esterified fatty acids, and creatinine in blood of rats. Chromium concentration significantly increased in the liver of rats after administration of Cr(VI). The combined effect of vitamin E and ethylthiosulfаnylate contributed to the partial compensation of Cr(VI)-induced disturbances of the number of leukocytes and content of total proteins, phospholipids, non-esterified fatty acids in blood of rats. Vitamin E and ethylthiosulfаnylate pretreatment also contributed to the reduction of the percentage accumulation of Chromium in liver of rats injected with Cr(VI).
Individualized Education Programs and Transition Planning for Adolescents With Autism
Authors: Hughes Michelle M. , Kirby Anne V. , Davis John , Bilder Deborah A. , Patrick Mary , Lopez Maya , DaWalt Leann S. , Pas Elise T. , Bakian Amanda V. , Shaw Kelly A. , DiRienzo Monica , Hudson Allison , Schwenk Yvette D. , Baroud Thaer M. , Washington Anita , Maenner Matthew J.
Published: June 2023

OBJECTIVES

The study objectives were to examine the contents of individualized education programs (IEPs) of adolescents with autism spectrum disorder (ASD), including postsecondary transition goals, services, and changes in special education classification over time.

METHODS

This study involved a longitudinal population-based surveillance cohort from the Autism Developmental Disabilities Monitoring Network from 2002 to 2018 in 3 catchment areas in the United States. The sample included 322 adolescents who were born in 2002, identified with ASD, and had an IEP available for review at ages 15–16 years.

RESULTS

We found that 297 (92%) adolescents with ASD had an IEP including a transition plan. Those without intellectual disability (ID) were more likely to have postsecondary education and employment goals and have those goals be to pursue higher education or competitive employment compared with those with ID. Forty-one percent of adolescents with ASD had a postsecondary living arrangement goal. Although 28% of adolescents with ASD received school-based mental health services, none of these adolescents were Black; additionally, 15% of those with ID received mental health services compared with 34% without ID. The percentage of adolescents with ASD served under an autism classification increased from 44% at age 8 years to 62% by age 16.

CONCLUSIONS

We identified gaps and disparities in school-based postsecondary transition planning. Working with education partners, families, and adolescents will be important to identify what challenges contribute to these findings and what supports are needed to improve the equity and quality of the transition planning process for adolescents with ASD so they are prepared for adulthood.
Леттонизмы в речи русскоязычного населения современной Латвии
Authors: Головлева Вероника
Published: June 2023

The phenomenon, which we examined in our report on the example of the linguistic situation in Latvia, is a rather common and universal phenomenon of interlanguage interference in the language of a national or linguistic minority. At the same time, it is worth noting that in the language of Latvians there is also the reverse situation, i. e. calculation from Russian. It concerns first of all slang and absentminded vocabulary, as well as parasitic words or frequent introductory words, the most common of which are вот, давай, тачка etc.
Etymologie a motivace vybraných názvů emocí ve slovanských jazycích
Authors: Ieremenko Tetiana
Published: June 2023

The article deals with the etymology and motivation of selected lexemes denoting human emotions in Slavic languages. Lexemes selected for the research represent the majority of basic emotions according to psychology; additionally, the word for ‘love’ has been included. The primary goal is to ascertain the primary motivation of chosen names of emotions as additional information about the notions they denote. The article also compares the motivation of studied lexemes across Slavic languages.
Сопоставление русского и чешского именословов – наиболее популярные русские и чешские личные имена
Authors: Качмарек Оскар
Published: June 2023

The above article compares the onomasticons, meaning the sets of given names in Czech Republic and Russian Federation in years 2016–2019. Based on origin and etymology of researched names it tries to determine the similarities and differences between Czech and Russian onomasticons as well as to trace tendencies in terms of giving names in both countries.
Русские народноэтимологические топонимические легенды, связанные с персоной Екатерины II
Authors: Милосердова Яна
Published: June 2023

The persona of Catherine the Great occupies a prominent place in Russian history. The people's perception of the empress's legacy is reflected in Russian folk-etymological toponymic legends. Toponymy associated with the subjectness of Catherine the Great is established in the popular consciousness, which endowed the Empress with the right to nominate geographical objects.
Lingvokulturémy s odkazom na výroky známych osobností v novinových titulkoch českých a ruských periodík
Authors: Mujkošová Tamara
Published: June 2023

The article focuses on the functions of news headlines containing linguo-culturemes referring to the quotes of famous personalities. The research material has been excerpted from daily newspapers Lidové noviny and «Коммерсантъ» and weekly newspapers Respekt and «Аргументы и факты» in a parallel time period and represents a sufficiently representative sample for comparison. The results of the research point to the difference in certain peculiarities of the Czech and Russian linguoculture.
Dichotomický obraz světa v rétorice českých populistických hnutí na příkladu ANO 2011 a SPD
Authors: Stanaszek Kinga
Published: June 2023

The aim of the article is to examine the image of the dichotomous vision of the world that populist movements create in their rhetoric. Two Czech populist movements – ANO 2011 and SPD were used as an example. Úsvit příme demokracie was recognized as an integral part of the SPD at the time when its leader was Tomio Okamura. The analysis was carried out on the basis of party materials, slogans and media statements and was focused on creating one's image as a defender of ordinary people, describing the enemy and the role of emotionally charged words in public speeches.
Zelená farba ako kvalitatívny atribút Vladimíra Zelenského v ukrajinskej publicistike
Authors: Vozár Pavol
Published: June 2023

The aim of the study was analyze the headlines of journalistic texts from Ukraine, which contain the attribute of the green color and are demonstrably related to V. Zelensky's political activities and investigate to what extent the given attributes are supported by the conventions of the Ukrainian language. The results show that 42% of the attributes are arbitrary with respect to dictionary meanings. Together with the "relatively arbitrary", up to half of the headlines use the attribute green in connection with V. Zelensky, without this use being supported by the conventions and norms of the language. On the contrary, 17% of examples were demonstrably motivated. The text also deals with the dependence between arbitrariness related to color symbolism and the criticism in political discourse.
Portret czarownicy w powieści „Wiedma” Moniki Maciewicz
Authors: Abramczyk Konrad
Published: June 2023

The purpose of the article is to show how the author of the novel ‘Wiedma’ presented the figure of the witch. Based on the analysis, elements of Eastern and Western beliefs were extracted and compared. The results showed that the witch created by Monika Maciewicz is a complex portrait, which tries to emphasize her belonging to the native culture and highlights the anthropological figure of the witch as a liberated woman.
Hledání Abrama Terce. Dobové archivní materiály vydané před odhalením pravé identity autora
Authors: Danielová Anna
Published: June 2023

The focus of presented article lies on reception of Abram Tertz’s early works published in the West before the author’s true identity was revealed. Andrei Sinyavsky (1925–1997), publishing under name of Abram Tertz, was a Russian literary scientist and author, convicted of subversion by the Soviet government in 1966 and sentenced to seven years of hard labour. After being released he was allowed to emigrate to France. The analyzed texts have been selected with a special emphasis on author’s attempt to characterize Tertz’s attitude to communist ideology as well as his origins and education.
Lety na Mars v ruské dorevoluční sci-fi literatuře
Authors: Novotná Alexandra
Published: June 2023

The main focus of this aricle is the depiction of the planet Mars in Russian prerevolutionary sci-fi literature (1892–1917) as the Russian Revolution changed visions of the future in literature. Analyzed books were greatly influenced by contemporary philosophical and religious thought (theosophy, Fyodorov, socialism), but also by older philosophical thinkers (Plato, More, Rousseau). Technology used for space travel varies from visionary technology (eg. nuclear propulsion) to mystic modes of travelling or hypnosis. Revolution is expected to be a result of a slow process of social awakening.
Global value chains and knowledge spillover to local economy in Visegrad 4 countries
Authors: Otsuka Kozo , Natsuda Kaoru , Csonka Laszlo
Published: June 2023

This study empirically examines knowledge spillover in Visegrad Four (V4) countries, with an emphasis on global value chains (GVCs). Using patent statistics, the study aims to estimate the knowledge production function, including domestic and foreign knowledge stocks, and found that international knowledge spillover does not contribute much to the innovation of the local economy in the V4 countries because of three factors: i) multinational corporations' (MNCs) strategy to locate a low-cost production base, ii) MNCs' strategy to locate supporting (process, production or non-core product related) research and development (R&D) activities and iii) limited technology spillover effect from MNCs to local firms. Local firms in the V4 countries became dependent on the peripheral products and technologies provided by MNCs, and as a result, local R&D activities in the V4 countries were diverted from patentable innovation.
11. évfolyamosok nyelvtanulásának és jövőterveinek vizsgálata Hajdú-Bihar és Szabolcs-Szatmár-Bereg megyében
Authors: Sebestyén Krisztina
Published: June 2023

A tanulói teljesítményeket, a jövőbeli terveket több tényező befolyásolja,
például a területi adottságok, a szülők iskolázottsága. A „Némettanulás, illetve
-tanítás Hajdú-Bihar és Szabolcs-Szatmár-Bereg megyében (2018–2019)” kutatás
tanulói adatbázisából (N = 890) a területi szempont, a családi
háttér, valamint a tanult idegen nyelv mentén készített kereszttábla és
varianciaanalízisek alapján elemeztük az idegen nyelvi érdemjegyeket, valamint a
nyelvtudással kapcsolatos jövőterveket. A Hajdú-Bihar megyéből származók
tanulmányi eredményei többségében magasabbak a vizsgált tantárgyakból, továbbá
különbség van a tanult idegen nyelv és a tanulók származási megyéje szerint a
diákok nyelvtanulással kapcsolatos jövőterveiben.
Iskolaközpontok vagy kultúrrégió-centrumok?
Authors: Ugrai János
Published: June 2023

Tanulmányunkban a reformkori Akadémia protestáns tagjainak földrajzi
hovatartozását vizsgáltuk kollektív biográfiai eszközökkel. A tanulmányi pálya
és a felnőtt életutak állomásait kultúrrégiókhoz soroltuk. Ezt követően a
kultúrrégiók egymáshoz viszonyított arányát, akadémiai reprezentációjuk erejét,
illetve a személyeknek a kultúrrégiók közötti mozgását, földrajzi mobilitásuk
nagyságát és intenzitását határoztuk meg. A vizsgálatot az tette lehetővé, hogy
a reformkori Akadémia mindenféle metszésvonal mentén egyensúlyozó
mechanizmusokat működtetett, s így felekezeti és földrajzi értelemben is
egyfajta reprezentativitásra törekedett. A reformkori akadémikusok mobilitását
vizsgálva Debrecen és Erdély önállóságához (és zártságához) nyertünk újabb
érveket, emellett pedig Pest immár egyre erőteljesebb vonzó hatása támasztható
alá meggyőző számokkal.
A hazai cigányság területitársadalmi megjelenítése a tankönyvekben.
Authors: Cserti Csapó Tibor
Published: June 2023

„A roma kultúra reprezentációja a tartalomszabályozók, tartalomhordozók körében,
valamint ezek fejlesztési lehetőségei” című kutatás során azt vizsgáltuk, hogy a
közoktatásban a környezetismeret, a természetismeret és a földrajz tanításához a
választható tankönyvek listáján szereplő tananyaghordozók a hazai
nemzetiségekről, fókuszáltan a cigány, roma népességről tartalmaznak-e olyan
releváns információkat, amelyek a Nemzeti alaptanterv (NAT), a Kerettantervek,
illetve az ezekre épülő helyi tantervek előírásai szerint kötelező elemei
lennének az egyes évfolyamok ismeretanyagának. (Ld. még Orsós 2015,
2016; Cserti Csapó 2016; Andl–Cserti 2017.) Áttekintettük a
témakörben született korábbi eredményeket is (Terestyéni 2005; Balázs et
al. 2014; Binder–Pálos 2016).

A tankönyvek első vizsgálata nagyon negatív tapasztalatokkal zárult. A
választható tankönyvek elvétve tartalmaztak a nemzetiségekről információkat, a
cigánysággal kapcsolatban még inkább érezhető volt ez a negligálás. Bár
mindegyik tantárgy alkalmas arra, hogy a nemzeti kisebbségekkel szembeni
tartalmi és érzékenyítési elvárásoknak eleget tegyen.

A tankönyvek közül néhányban jelentek meg tartalmak, de ezek kivétel nélkül vagy
pontatlanok, vagy inkább a sztereotipikus gondolkodás veszélyét rejtették.

Az is világossá vált, mennyire nehéz feladat a tankönyvszerző számára, hogy
egyszerre feleljen meg minden elvárásnak. (Ld. Dárdai 2002; Balázs et
al. 2017.) A tanulmány reflektál arra, mit és hogyan lehet tanítani
abból a „megrendelői csomagból”, amit a hazai oktatáspolitika előír a hazai
nemzetiségek – köztük a roma, cigány népesség – társadalmi-gazdasági-területi
megközelítésével kapcsolatban.
New records and geographic distribution of Microhyla gadjahmadai Atmaja et al., 2018 (Amphibia, Microhylidae) from West Sumatra, Indonesia
Authors: Virdana Sepriyoga , Septiansyah Elfira , Kubontubuh Catrini Pratihari , Akbar Muhammad , Wahyudi Gusra , Eveisca Nadila
Published: June 2023

The last report of Microhyla gadjahmadai was recorded from Vila Hijau on Curup, Bengkulu Province, Indonesia. Here, we report this species from the conservation area and palm-oil plantation of PT. Tidar Kerinci Agung, Solok Selatan and Dharmasraya Regency, West Sumatra Province. These new records extend the known distribution by 213 km to the north-northwest from the nearest previously known occurrence. These finds add to the information known about this species and as an indicator to support management for further conservation strategy of the forest.
Sobre el traslado del lemario del «DA» (1770-1829) a los «DRAE» (1780 y 1783)
Authors: Carriscondo-Esquivel Francisco-M.
Published: June 2023

El Diccionario de autoridades (1770- 1829) es una obra por desgracia inconclusa y parcialmente inédita, cuyo lemario se proyectó en las primeras ediciones del Diccionario de la lengua castellana (especialmente las que van de 1780 a 1817). Los investigadores consideran que esta proyección, en lo que concierne a los compendios de 1780 y 1783, es completa y llega hasta la letra c. En este trabajo muestro evidencia de que existen otros factores que deben tenerse en cuenta y que complican esta pretendida transmisión directa, como son su prolongación a letras posteriores, además de la incorporación de lemas no existentes en el Diccionario de autoridades (1770-1829). Asimismo, mi análisis también pretende demostrar el protagonismo de la variación formal en el lemario, ya que constituye uno de los principales vectores de fuerza, cuantitativamente hablando, que intervienen en la ampliación léxica de la primera edición del Diccionario de autoridades (1726-1739) y, a la postre, en la configuración léxica de los compendios.
Literariedad, contracultura y mito: un acercamiento al filme «Amando a Maradona» (2005) de Javier Vázquez
Authors: Miranda Juan
Published: June 2023

Este artículo examina la representación del imaginario mítico, teológico y picaresco en torno al personaje de Diego Armando Maradona dentro de diferentes expresiones artísticas, entre ellas la crítica, la literatura y el cine. Se procura entender cómo se ha generado la imagen de Maradona como personaje mítico, futbolesco e iconográfico, tomando como principal foco de análisis el filme Amando a Maradona (2005) de Javier Vázquez. Se puede argumentar que parte de la construcción mitológica de Maradona en su performance deportiva y su aparición fílmica y literaria se fundamenta en un imaginario iconográfico de reivindicación poética, simbólica, material y afectiva de la imagen en movimiento.
La «Égloga Piscatoria» y «La sirenita» de Andersen en «Marinero en tierra» de Rafael Alberti: a propósito del soneto «Verano» dedicado a Lorca
Authors: Morros-Mestres Bienvenido
Published: June 2023

El cuarto soneto que Alberti dedica a Lorca con el título de «Verano» carece de cualquier interpretación homosexual entre los poetas, como lo demuestra la tradición de la piscatoria barroca, por una parte, y la literatura de sirenas y ondinas en el siglo XIX, por otra. Lorca, como pez espada, es el ejecutor de la muerte del yo poético y su sirena.
Zygmunt, Karolina. Viajar y escribir en la era del turismo de masas: relatos de viajes contemporáneos por la ruta de la seda. Madrid: CSIC, 2021. 308 pp. (ISBN: 978-84-0010-823--6)
Authors: Alonso-Prieto Javier
Published: June 2023

Book Review
Application of fluorescence microscopy for histological discrimination of golden camellias leaves
Authors: Van Anh Le Thi , Phuong Nga Mai Thi , Phuong Linh Tran , Minh Anh Nguyen , Phuong Linh Huynh Thi , Chi Thanh Nguyen , Thu Phuong Le Thi , Kieu Oanh Nguyen Thi
Published: June 2023

Histological analysis, which aims to investigate the microscopic anatomy of biological tissues, has been a simple and powerful technique for plant taxonomy. Sectioning followed by staining methods is widely used in observing histological structures. However, the staining techniques often destroy tissue and provide low-quality images due to nonspecific reactions with the dyes making further analysis difficult. In this report, we propose an applicable non-staining histology protocol based on auto-fluorescence characteristics of plant tissues and its application in the anatomical discrimination of six similar-appearance species of golden camellias as a case study. We compared the images from the same tissue under a bright field with the staining step and under fluorescence directly without the staining step in the sample preparation. The images were taken from Eclipse Ni-U microscopy (Nikon, Japan) with a color DS-Ri2 camera (Nikon, Japan) and NIS-ELEMENTS Basic Research Imaging software. The non-staining method demonstrated significant advantages compared to the staining protocol. The fluorescent images showed the distinction between adjacent leaf tissues with their own naturally reflective colors. In addition, the anatomical parameters, including the xylem area, phloem area, bundle sheath area, and palisade/spongy width ratio, were easily measured in good-quality images. These parameters were used in discriminative analysis by the Principal Component Analysis (PCA). The PCA diagram demonstrated the separation of six species, thus suggesting that these anatomical parameters can be used for taxonomy. In conclusion, our study showed a helpful technique in histological analysis that significantly contributes to the taxonomy of golden camellias species and can be applied in other plant varieties.
Exploring the effects of principals’ distributed leadership practices on learners’ learning achievement as mediated by teachers’ commitment
Authors: Jambo Ghirmai Daniel , Hongde Lei
Published: June 2023

The aim of the study reported on here was to explore the effects of principals’ distributed leadership (DL) practices on learners’ learning achievement as mediated by teachers’ commitment. In the study we employed survey data with a sample size of 603 learners from 8 technical and vocational education training schools in Eritrea. The proposed model of this study was tested through multiple regression analyses and structural equation modelling using teachers’ commitment as a mediator. The findings of this study show that distributed leadership practices have a positive and significant effect on teachers’ commitment and an indirect effect on learners’ learning achievement. The results also show that teachers’ commitment has a partial mediation effect. Moreover, the variance test analysis reveals the effect of distributed type of leadership practices by school principal determined by school type, size, location, and ownership.
Comprehensive analysis of clinical and paraclinical parameters of coronary blood flow in patients with acute types of coronary artery disease and type 2 diabetes
Authors: Kokozheva M. A. , Kutsenko V. A. , Mardanov B. U. , Akhundova H. R. , Mamedov M. N.
Published: June 2023

Aim. To study clinical and paraclinical parameters and lesions of the coronary bed in patients with acute types of coronary artery disease (CAD) and type 2 diabetes (T2D).

Material and methods. The study included 102 patients of both sexes with acute CAD. Patients were analyzed in two following groups: the first (mean age, 56,6±0,96 years, men/women 34/16) consisted of 50 patients with acute coronary syndrome (ACS) and type 2 diabetes, the second (mean age, 58,7±1,01 years, men/women 37/15) — 52 patients without T2D. Along with the assessment of behavioral and biological risk factors for CVD, clinical and hemodynamic parameters and the results of coronary angiography were analyzed.

Results. In patients with ACS and T2D, the duration of T2D was 5,6±3,7 years. Somatic comorbidities were registered in 74% in the first group, and in 53,8% in the second. According to echocardiography, in the group of people with ACS and T2D, the left ventricular ejection fraction was lower, and the mean pulmonary artery pressure was higher compared to the group without T2D. Stenosis of the distal coronary artery third in patients with T2D occurred in 78% of cases, and in patients without T2D — in 42%; the differences were significant (p<0,001). Diffuse CAD also prevailed in the first group and amounted to 58%, and in the second — 27%. The SYNTAX score was higher in patients with T2D compared with the group of people without T2D — 29,2 and 22%, respectively (p<0,001).

Conclusion. In patients with ACS and T2D, the prevalence of pulmonary hypertension and left ventricular systolic dysfunction was revealed. The features of the coronary flow in patients with T2D with ACS were predominantly the distal type of lesion, as well as an increased risk of angioplasty complications, assessed using the SYNTAX score.
Prognostic significance of troponin I in assessing cardiovascular risk in the Russian population. Data from ESSE-RF1 and ESSE-RF2 multicenter studies
Authors: Drapkina O. M. , Shalnova S. A. , Kontsevaya A. V. , Kutsenko V. A. , Kapustina A. V. , Balanova Yu. A. , Evstifeeva S. E. , Ivanova A. A. , Imaeva A. E. , Makogon N. V. , Metelskaya V. A. , Muromtseva G. A. , Filichkina E. M. , Yarovaya E. B.
Published: June 2023

Aim. To assess the significance of troponin I (hs-cTnI) for cardio­vascular risk stratification in a population of Russian working-age men and women of.

Material and methods. The data of 13976 men and women aged 25-64 from the ESSE-RF1 and ESSE-RF2 multicenter studies were analyzed. The examination included following points: standard questionnaire, measurements of height, weight, waist circumference, body mass index, blood pressure, pulse rate, biochemical tests. The level of hs-cTnI in blood serum samples stored at -70оC in the Biobank of the National Medical Research Center for Therapy and Preventive Medicine was determined by chemiluminescent immunoassay analysis. Individual cardiovascular risk was calculated using the SCORE scale: values <1% — low risk; 1-4% — moderate, 5-9% — high and ≥10% very high. Similar to the BiomarCaRE study, participants were divided into 3 sex-adjusted cTnI levels: men <6, 6 to 12, and >12 pg/ml; women <4, 4 to 10, and >10 pg/ml. We analyzed following hard endpoints: cardiovascular death or non-fatal myocardial infarction, and composite endpoint: the same and stroke.

Results. The prospective analysis of the relationship between troponin levels and endpoints and composite endpoints showed that in participants without prior CVD, hs-cTnI levels >12 pg/ml in men and >10 pg/ml in women are associated with an increased risk of endpoints and composite endpoints by 3,39 (1,91-6,03) and 2,69 (1,6-4,52) times (p<0,001), respectively. Similarly to BiomarCaRE, the SCORE-calculated risk reclassification was validated by adding the hs-cTnI value. The net reclassification improvement index (NRI) for endpoints and composite endpoints was 13% and 11% (p<0,001), respectively. Among men, the reclassification for NRI composite endpoints was more accurate than among women: 19% and 11%, respectively.

Conclusion. The hs-cTnI level is an independent predictor of myo­cardial infarction, stroke, and death from CVD in people aged 35-64 years without prior CVD. Adding the hs-cTnI level to the SCORE model makes the risk prediction more accurate.