bluuebunny/crossref_metadata_2025 huggingface dataset:
The challenges of the primary teachers in the XIX century: from the materials needed to teach classes to the payment of the salaries
Authors: Amorim Simone Silveira
Published: May 2021

Different aspects impacted the work of primary school teachers in the 19th century: the lack of materials for the teaching of classes, the delay in paying salaries and the release of resources to pay the rent of the houses where the classes worked, the health issues that implied the removal of the teacher for treatment, among others. Given this context, the objective is to inform how the teaching profession was configured based on the challenges faced by primary teachers in the 19th century. As a research in the field of History of Education, newspapers and official communications will be taken as sources, being analyzed from the conceptions of configuration and representation. It is possible to perceive that the profession of primary teacher was configured in the face of challenges and confrontations, corroborating the construction of the representation of the qualified teacher in the 19th century.
University students' voices on sexual and gender diversity, their relationship with coeducation and pedagogical innovation: a comparative study at the University of Madeira (Portugal) and the Federal University of Sergipe (Brazil)
Authors: Brazão José Paulo Gomes , Oliveira Anselmo Lima de , Dias Alfrancio Ferreira
Published: May 2021

The concepts of gender and sex have been considered in recent literature as elements of power, under the circumstance of contemporary floating constructions. In the field of Education, a “deconstructed”, non-normative look is needed as a political act on issues of sexual diversity and gender. The curriculum as a culture can and must take a Queer view at school. In this research we intend to make a comparative study on sexual and gender diversity in the academic environment, listening to the voices of students from the University of Madeira and the Federal University of Sergipe. In this way, we emphasize coeducation in the construction of inclusive environments and their contribution in the field of pedagogical innovation. The discussion of these themes in the academy is fundamental for the conceptual renewal and the organizational contexts of the practice of pedagogy. It also contributes to important changes in social agendas.
Dinamika Kelompok Perkumpulan Petani Pemakai Air (P3A) Sumber Mulyo dalam Kegiatan Pengelolaan Jaringan Irigasi di Desa Pereng Kecamatan Mojogedang Kabupaten Karanganyar
Authors: Fauzi Azmul , Winarno Joko , Ananta Sapja
Published: May 2021

The purpose of this research are to know the factors of that affect group dynamic, the result of activities, and the best strategy in development object of this research. This research use indept revew, observation, and document analyst to collecting the datas. And then, the datas will be thought in input stage until the researcher fing the strengths and the weakness of the object. The researcher can find the opportunities and the treats of thi object by using IFE (Internal Factor Evaluation) matrix and EFE (External Factor Evaluation) matrix. The researcher use SWOT (Strengths, Weaknesses, Opportunities, and Threats) matrix to determine the strategies that will be use in the next stage. The result of the research is the most important strength factors are high farmer participation and participatory of the leadership (0,727). While, the weaknesses are low farmer education and the existence of multiple positions in management (0,409). The highest opportunity is attention from the government at the beginning of P3A activities (1,333). While the threat factor is the lack of government attention to the current P3A activities (1,000). The result of this research is the strategies can be used for P3A Sumber Mulyo’s activities are optimizing P3A Sumber Mulyo activities to faced the problem. The researcher hope to P3A Sumber Mulyo can solve the problem about primary, secondary, and tertiary waterways management and manufacturing and processing of organic fertilizer.
Keputusan Adopsi Benih Padi Bersertifikat melalui Program Desa Mandiri Benih oleh Petani di Kabupaten Boyolali
Authors: Fadhlurrahman Iqbal , Suminah Suminah , Wijianto Arip
Published: May 2021

Seeds Independent Village is a labor-intensive activity aiming at providing facilities to farmer groups to increase the capacity to produce seeds to fulfill the needs of seeds in their area. The objective of the study is to, examine the decision on adoption of certified rice seeds through the Seed Independent Village program, examine the factors that influence adoption decisions, examine the influence of factors that influence adoption decisions simultaneously and partially on adoption decisions. The research location was in Boyolali Regency. This research used quantitative methods with survey techniques. The population in this study was 1,200 farmers, members of the Berkah Gapoktan and Manunggal Makmur Gapoktan. Samples were taken using a proportional random sampling technique with a total of 120 farmers. Data analysis using logistic regression. The results showed farmers who implemented were aware of the existence of seed producers in their area, lower seed prices, and following the varieties needed, while farmers who did not implement were still using free seed assistance from the government and the varieties produced by Gapoktan were deemed incompatible with the needs of farmers; factors in the form of relative advantage, compatibility, complexity, trialability, observability were included in the high category, the social system and promotion efforts by agricultural instructors were in a low category, the types of communication channels included in the very low category; simultaneously, the factors that influenced adoption decisions had a significant effect. Partially the factors that had significant influence were complexity, trialability, and social system.
Motivasi Petani dalam Optomalisasi Pemanfaatan Pekarangan di Kecamatan Puncak Sorik Marapi
Authors: Siregar Ameilia Zuliyanti , Harahap Nurliana , Hayati Layla Rahma
Published: May 2021

Fulfillment of food at the individual level is carried out through activities to optimize the use yards, this activity is intended to anticipate food insecurity in various regions. Utilization of yards is managed through approach of integrated agriculture of types plant, livestock and fish farming, to ensure the continuous availability of diverse foods, in order to fulfill family nutrition. The research objectives are to verify the level of farmers motivation which optimizing the utilization of their yards in Puncak Sorik Marapi District. The research uses descriptive analysis by a quantitative approach. Furthermore, the data were collected by a questionnaire instrument which it had tested for validity and reliability, using multiple linear regression and a Likert scale. The study resulted show that level farmers motivation which optimizing the use of yards in Puncak Sorik Marapi District is in the very high category, namely 80.81%, while the results of linear regression onwhich farmer motivation influenced by optimizing used yards are obtained by the following equation Y = - 0.980 + 0.136x_1-0.023x_2 + 0.432x_3 + 0.135x_4. Further tests using t-count showed that the factors that the significant effect on motivation farmers in optimizing use of their yards were farmers' perceptions (2.651), the role of extension workers (5,464), and farmer characteristics (2.894).
A Non-Linear, Time-Variant Approach to Simulate the Rainfall-Induced Slope Failure of an Unsaturated Soil Slope: A Case Study in Sapa, Vietnam
Authors: Tran The Viet , Hung Hoang Viet , Pham Huy Dung , Sato Go , Vu Hoang Hiep ,   Department of Civil Engineering, Thuyloi University  175 Tay Son Street, Dong Da District, Hanoi, Vietnam,   Graduate School of Environmental Informations, Teikyo Heisei University, Tokyo, Japan,   Institute of Ecology and Works Protection, Hanoi, Vietnam
Published: May 2021

In this study, the Transient Rainfall Infiltration and Grid-Based Regional Slope-Stability Analysis (TRIGRS), v2.1 program, and module SLOPE/W in the Geostudio package were adopted for assessing rainfall-induced slope failure. TRIGRS was developed by the United States Geological Survey to determine the time-varying groundwater table at the regional scale under rainfall infiltration. The program employs partial differential equations represented by one-dimensional vertical flow in homogeneous materials for unsaturated conditions. With the application of a simple runoff routing scheme combined with the mass balance between rainfall, infiltration, and runoff over the study area, the distribution of the transient pore-water pressures within the entire landscape was simulated considering both the surface and subsurface flow. Additionally, compared to the traditional two-dimensional approach, the topographical conditions were also considered during the groundwater simulation. For conducting the slope stability analysis, a typical cross-section was constructed based on the site description. The predicted water-tables at the observed time of failure of the typical section were extracted and used in SLOPE/W to conduct the time-dependent modelling of rainfall-induced slope failures. In this study, the non-linear method was employed for simulating unsaturated soil shear strength, and the stability of the slope was evaluated using Bishop’s simplified method. We applied the approach to the landslide event that occurred on August 5, 2019, in Sapa district, Lao Cai province, Vietnam. The event resulted in severe damage and blocked the road for days. The predicted results on the stability of the slope as the factor of safety were compared with the actual slope failure during the event. The results showed that, by inputting accurate data, the applied approach could provide valuable evidence about the time of the slope failure.
Factors Affecting Slope Instability of the Nhan Co Alumina Red Mud Basin and Economical, Environmentally Friendly Soil Stabilization
Authors: Hoang Nguyen Van , Hung Hoang Viet , Chi Nguyen Mai , Dung Pham Huy , Tien Dao Trong ,   Institute of Geological Sciences, Vietnam Academy of Science and Technology No.84 Chua Lang Street, Dong Da District, Hanoi 10000, Vietnam,   Thuyloi University, Hanoi, Vietnam,   Project Management Department 8, Ministry of Agriculture and Rural Development, Daklak, Vietnam
Published: May 2021

Since 2017, there have been recurring landslides in the red mud basins of the Nhan Co alumina factory, Dak Nong Province, Vietnam, during the rainy seasons. Changes in physical and mechanical soil parameters due to rain water infiltration and the formation of tension cracks have been considered as the main causes of slope instability. The soil cohesion and angle of internal friction decreased nearly thrice and twice, respectively, as the soil became saturated. An economical and environmentally friendly reinforcement using bamboo stem piles in combination with slope regrading is suitable for the site conditions. With a light slope regrading, a bamboo stem pile spacing of 5.3 m ensures that the slope factor of safety (FS) is 1.30, which satisfies the requirements specified by the national technical regulations. The results are helpful and serve as practical fundamentals for a comprehensive control of slope stability of the red mud basins in the Nhan Co alumina factory to avoid possible catastrophic destruction of the local ecology by the spreading of an extremely high pH fluid and mud from the red mud basins due to the landslides into the red mud basins.
Special Issue on the Tokyo Metropolitan Resilience Project
Authors: Hirata Naoshi
Published: May 2021

Natural hazards continue to be an increasing challenge to societies around the world, with many societies being impacted by multiple types of hazard events. To reduce the impact of these hazards, we must not only quantify the hazard and risk associated with multi-hazard events but also understand the uncertainty associated with these events. Resilience can only be improved by considering all these factors. Multi-hazard and risk-modeling approaches are receiving increasing attention globally; however, the challenges of assessing uncertainty in both single- and multi-hazard risks are considerable. Without a clear understanding of the risks and their uncertainties, measures to mitigate these risks and to increase resilience face difficult decisions. In the present Special Issue, we have five papers and one report on the Tokyo Metropolitan Resilience Project: Interdisciplinary and Industry-Academia Collaboration Research for Enhancing Social Resilience to Natural Disasters in the Tokyo Metropolitan Area –DEKATSU Activity–, Multi-Data Integration System to Capture Detailed Strong Ground Motion in the Tokyo Metropolitan Area, Development of the Training Tool “KUG” for Temporary Lodging Facilities and Companies for Stranded Commuters, Development of Matching Modeling for Human Resource Allocation of Shelter Management by the Set Theory, Time-Cost Estimation for Early Disaster Damage Assessment Methods, Depending on Affected Area, and A Report of the Questionnaire Survey on Awareness of COVID-19 and Shelters.
Aprovechamiento histórico de los recursos hídricos. Evolución de obras hidráulicas en el estado de Zacatecas
Authors: Bautista Capetillo Carlos , González Pérez Georgia Aralú , Badillo Almaraz Hiram
Published: May 2021

Disponibilidad y demanda son aspectos primordiales siempre que se proyecte dotar de agua a los diversos sectores que la requieren; de modo que la competencia por el volumen útil incrementa día a día, mientras que la oferta disminuye cada vez más. En esa relación inversa, las dinámicas antropogénicas y ambientales son determinantes para garantizar las necesidades de la población, en particular por las transformaciones climáticas evidenciadas en décadas recientes. A lo largo de la historia, el estado de Zacatecas ha padecido los estragos de eventos meteóricos extremos, principalmente aquellos relacionados con la sequía. Asimismo, aunque en menor proporción, han ocurrido inundaciones severas que han provocado daños a la población. En este trabajo se analizan, a través de un recorrido temporal, las variaciones climáticas de temperatura y precipitación, y su influencia en la evolución de los sistemas hidráulicos para el abasto de agua potable en el municipio zacatecano de Nochistlán de Mejía durante el periodo 1930-2015. El estudio abarca diversas construcciones que han permitido abastecer de agua a la población de la localidad; de igual modo, se establecen los riesgos que garantizan el suministro de dicho líquido a partir de proyecciones estadísticas en cuanto a crecimiento poblacional y condiciones del clima. Los resultados muestran la evolución de las obras hidráulicas y su manifiesto valor en el abasto de agua potable a los pobladores de esa región. Al mismo tiempo, se establecen las posibles complicaciones que, de mantenerse la tasa de incremento poblacional, deberán enfrentar las futuras generaciones dadas las proyecciones en la variabilidad de la lluvia y su consecuente disminución en el volumen de agua.
Para una radicalización del proyecto arquitectónico contemporáneo. Hacia un postproyecto de arquitectura
Authors: Castro Salgado Selim Abdel , Hernández Manuel Martín , Vázquez Honorato Luis Arturo
Published: May 2021

Se propone aquí la categoría de Postproyecto arquitectónico frente al panorama de crisis actual -problematizada por el Antropoceno-, como alternativa a la noción de proyecto de objeto arquitectónico. Se plantean tres ejes para su radicalización: la crisis del objeto arquitectónico, el nuevo papel del arquitecto, y la relación de la arquitectura con el medio, como categorías teórico-críticas. Adicionalmente, se plantean nociones que pueden ayudar a construir límites al modelo arquitectónico moderno: la idea de lo social, según la Teoría del Actor Red; la de radicalidad en arquitectura, propuesta por Baudrillard; y la de lo Posthumano, según Braidotti. Sugerimos, también que, en el nacimiento de la noción de proyecto arquitectónico hay una posibilidad para su evolución hacia la figura del Postproyecto Arquitectónico. Finalmente, se plantea cómo puede caracterizarse una nueva toma de posición frente a las categorías críticas propuestas, que permitan impulsar la construcción de una arquitectura de Postproyecto, con las categorías propuestas de: Forma abierta, Actor Abierto y Hábitat Abierto, esto con la intención de generar una red crítica que permita caracterizar al proyecto arquitectónico contemporáneo y como una guía para impulsar sus características deseables.
Isotope-Geochemical Evidence of the Nature of the Protoliths of Diamondiferous Rocks of the Kokchetav Subduction–Collision Zone (Northern Kazakhstan)
Authors: Shatsky V.S. , Ragozin A.L. , Skuzovatov S.Yu. , Kozmenko O.A. , Yagoutz E.
Published: May 2021

—The isotope-geochemical features of diamondiferous metamorphic rocks of the Kokchetav subduction–collision zone (KSCZ) show that both the basement rocks and the sediments of the Kokchetav massif were their protoliths. A whole-rock Sm–Nd isochron from the diamondiferous calc-silicate, garnet–pyroxene rocks and migmatized granite-gneisses of the western block of the KSCZ yielded an age of 1116 ± 14 Ma, while an age of 1.2–1.1 Ga was obtained by U–Pb dating of zircons from the granite-gneiss basement of the Kokchetav microcontinent. Based on these data, we assume that the protoliths of the calc-silicate, garnet–pyroxene rocks and the granite-gneisses of the KSCZ were the basement rocks sharing an initially single Nd source, which was not influenced by high- to ultrahigh-pressure metamorphism (~530 Ma). Therefore, their geochemical features are probably not directly related to ultrahigh-pressure metamorphism. The corresponding rock associations lack isotope-geochemical evidence of partial melting that would occur during ultrahigh-pressure metamorphism, which suggesting that they were metamorphosed under granulite-facies conditions. At the same time, the high-alumina diamondiferous rocks of the Barchi area (garnet–kyanite–mica schists and granofelses), which were depleted to different degrees in light rare-earth elements (REE) and K, have yielded a Sm–Nd whole-rock isochron age of 507 ± 10 Ma indicating partial melting of these rocks during their exhumation stage. The close ɛNd (1100) values of the basement rocks and garnet–kyanite–mica schist with geochemical characteristics arguing against its depletion during high-pressure metamorphism indicate that the basement rocks were a crustal source for high-alumina sediments.
Assessment of the Initial, Promising, and Predicted Geologic and Recoverable Oil Resources of the West Siberian Petroleum Province and Their Structure
Authors: Kontorovich A.E. , Livshits V.R. , Burshtein L.M. , Kurchikov A.R.
Published: May 2021

—The structure of the initial and predicted oil resources of the West Siberian petroleum province is quantitatively assessed. The assessment is based on the law of mass distribution of hydrocarbon accumulations, i.e., the truncated Pareto distribution and simulation modeling of the general set of oil fields. This approach makes it possible to estimate the amount of oil and the total oil resources concentrated in intervals of any size, in particular, in intervals of small and fine fields, in order to determine the economic efficiency of their development. The considered estimates do not apply to unconventional resources, such as the shale oil of the Bazhenov Formation.
ASSESSMENT OF THE INTEGRATED DEBT SECURITY INDEX OF UKRAINE
Authors: Filatova H. , Makarenko I.
Published: May 2021

The major problem of the current financial system of Ukraine is the critical condition of public debt. Its formation was unsystematic with operational financing of current budget expenditures that influenced its structure and dynamics. Ensuring the stability of the financial system and keeping the debt burden within safe limits, or at least ensuring its permanence, are Ukraine's debt policy's primary tasks. Simultaneously, the system of debt security indicators is an instrument for assessing the country's financial system's ability to meet its debt obligations. The article provides a list of key indicators of debt security, compares their limits in Ukraine and in world practice.
This study is aimed to outline the scientific and methodological approach to determining the state debt security condition. It was developed on the basis of a quantitative assessment of relevant indicators, their further grouping, which allows analyzing the potential threats and sources of instability, predicting their future dynamics, and calculating the integrated debt security index of Ukraine.
The main idea of the methodology for assessing the integrated debt security index is to evaluate the country`s debt security level in a certain period as a single summary indicator. Indeed, all threats and destabilizing factors measured by some debt security indicators might be taken into special consideration. However, their cumulative impact provides an overall result and allows assessing the overall debt security level. The analysis of the calculated integrated debt security index will allow timely react to potential threats and neutralize the risks caused by an excessive debt burden.
Methods for rationing debt security indicators have been reviewed, taking into account the advantages and disadvantages of each of these methods – the optimal one has been chosen.
The study covers the period from 2009 to 2019. The analysis of the debt security dynamics and the integrated index let on concluding that the debt situation in Ukraine is unstable, and there is a significant increase in debt over the past 11 years. Unsatisfactory values of both individual debt security indicators and the integrated index indicate the need for serious attention of public authorities and the need to optimize the management of Ukraine’s debt security in the system of economic security.
Long-term impact of recombinant human erythropoietin on transfusion support in patients with chronic renal failure
Authors: Popovsky M. A. , Ransil B.J.
Published: May 2021

Published reports on the impact of recombinant human erythropoietin (r-HuEpo) on transfusion requirements of patients with chronic renal failure have been limited to small populations and relatively brief follow-up. In this study we reviewed the effects of this drug on 86 patients with well-characterized transfusion requirements, followed for 18 months at seven dialysis centers. The median red blood cell transfusion requirements per patient per year decreased from 14 in 1987 and 1988 to 11 in 1989, when r-HuEpo was licensed in the United States (p < .01) and fell to 2 in 1990 (p < .01). The proportion of patients who became transfusion-independent increased from 34 percent in 1989 to 69 percent in 1990 (p < .001). These data demonstrate that r-HuEpo significantly decreases transfusion requirements of patients with chronic renal disease.
Immunohematology
1996;12:1-3.
Effect of pronase on high-incidence blood group antigens and the prevalence of antibodies to pronase-treated erythrocytes
Authors: Reid M.E. , Green C.A. , Hoffer J. , Øyen R.
Published: May 2021

Pronase is a useful and relatively nonspecific protease that cleaves many red blood cell (RBC) membrane proteins that carry blood group antigens. Unexpected findings in tests using pronase-treated RBCs during the investigation of a patient’s blood sample led us to test which high-incidence blood group antigens were sensitive and which were resistant to pronase treatment, and to determine the prevalence of antipronase in the serum of blood donors. Our results show that antigens in the Cromer and Lutheran blood group systems and the JMH antigen were sensitive to pronase treatment of RBCs. Antigens in the Dombrock blood group system and Sc1 were either sensitive to or markedly weakened by pronase treatment of RBCs. The following high-incidence antigens were resistant to treatment of RBCs with pronase: AnWj, Ata, Coa, Co3, Dib, EnaFR, Era, Fy3, Jk3, Jra, k, Kpb, Jsb, K14, Lan, Oka, Rh17, U, Vel, and Wrb. Over half of the serum samples from normal blood donors contained antibodies to pronase-treated RBCs. When testing human serum against pronase-treated RBCs, it is essential either to use an autocontrol or to perform the testing with an eluate.
Liss-dependent autoantibody with apparent anti-U specificity
Authors: Chiofolo J.T. , Reid M.E. , Charles-Pierre D.
Published: May 2021

Nonspecific binding of gamma globulin and complement, resulting in falsely positive indirect antiglobulin tests, has occurred with use of low-ionic strength saline solution (USS) reagents. These LISS-dependent antibodies have not been described in association with any particular disease state, nor do they have any apparent clinical significance. We present a LISS-dependent antibody with apparent autoanti-U specificity.
Elimination of a requirement for Vel-negative red blood cells and successful transfusion following chromium-51 survival study
Authors: Davey R.J. , Procter J.L.
Published: May 2021

A 42-year-old woman presented with anemia and complex serologic test results that included a requirement for Vel-negative red blood cells (RBCs). Rare Vel-negative units were located and transfused, but her anemia worsened. As further serologic evaluation was inconclusive, an in vivo recovery study with Vel-positive RBCs was performed. Normal 24-hour recovery of these cells resulted in removal of the Vel-negative antigen restriction and successful transfusion of the patient. Resolution of the inconclusive anti-Vel serology with an in vivo recovery study simplified the acquisition of blood for this patient and conserved rate RBC units.
Immunohematology
1995;11:39–42.
Loss of the Knops blood group system antigens from stored blood
Authors: Moulds J.M. , Brown L.L. , Brukheimer E.
Published: May 2021

Complement receptor type one (CR1) is a polymorphic glycoprotein, present on red blood cells (RBCs), that carries the Knops blood group system antigens. Since Knops system antigens can vary in strength, we investigated whether CR1 deteriorated upon storage, thus affecting Knops blood group system antigen reactivity. Units of whole blood were collected in CPDA-1 and evaluated at day 0 and day 35 for antigen strength, using routine serologic techniques. CR1 was quantitated by an enzyme-linked immunoassay and by flow cytometry measurements. The CR1 expression polymorphism was ascertained by a Hind III restriction fragment length polymorphism analysis. RBC membrane proteins were separated by SDS-PAGE and analyzed for CR1 size by immunoblotting. During the 35-day study interval, no notable decrease was found in RBC-CR1 by flow cytometry. However, CR1 protein was shown to be lost by proteolytic cleavage, as well as by vesiculation. This CR1 protein loss may contribute to the variability of serologic reactions characteristic of the Knops blood group system antigens. Titration results showed a significant decrease in score between day 0 and day 35 using anti-McCa and anti-Yka. Anti-Kna and anti-Sla did not demonstrate statistically significant differences in titration scores.
Immunohematology
1995;11:46–50.
ABO discrepancy with monoclonal ABO reagents caused by a pH-dependent autoantibody
Authors: Kennedy M.S. , Waheed A. , Moore J.
Published: May 2021

ABO discrepancy was noted when a patient’s unwashed saline red cell suspension was tested with monoclonal ABO reagents. The discrepancy was resolved when a washed (× 3) saline red cell suspension was used in repeat testing. The patient’s serum contained an autoagglutinin that reacted optimally below pH 7.0. Tire discrepancy occurred when monoclonal ABO reagents, formulated at a low pH, lowered the pH of the reaction mixture, and autoagglutination was observed.
Immunohematology
1995;11:71–73.
Case report: solid-phase platelet crossmatching to support the alloimmunized patient
Authors: O’Connell B.A.
Published: May 2021

Platelet crossmatching by a solid-phase red cell adherence assay was used to provide compatible platelets for two alloimmunized patients with leukemia. In this study, a successful platelet transfusion was defined as giving a corrected count increment (CCI) of >7,500 in a posttransfusion sample. For patient A, a total of 205 random platelet concentrates (PCs) were crossmatched. Eleven were considered compatible. These 11 PCs were transfused during five transfusion episodes. Four of the five transfusions produced CCIs of >7,500 and were considered successful. Individually, eight of the eleven units were considered in vivo compatible, and five of the eight donors of these units agreed to become apheresis donors. Platelets from three of these five apheresis donors gave CCIs of >7,500. For patient B, 1,074 random PCs were crossmatched, and 332 were considered compatible. These units were administered during 78 different transfusions. Seventy-one of these transfusion episodes resulted in CCIs of >7,500. In addition, 19 apheresis donors were identified by platelet crossmatching, and they provided platelets for 38 of 39 successful transfusions for Patient B. Platelet crossmatching should therefore be considered when a blood bank is called upon to support a refractory thrombocytopenic patient.
Immunohematology
1995;11:150–152.
Use of monoclonal Jka and Jkb reagents in phenotyping red cells with a positive direct antiglobulin test
Authors: Brazell J.
Published: May 2021

Twenty-five red cell samples with a positive anti-IgG direct antiglobulin test (DAT) were tested with human monoclonal IgM Jka and Jkb antibodies. Red cell samples were first tested by a 5-minute incubation tube test with the monoclonal antibodies (MAbs). The same red cells were then chloroquine diphosphate (CDP)-treated, and retested. Eleven of the CDP-treated samples were also tested with conventional polyclonal antibodies (PAbs) that required a 37°C incubation for 30 minutes, followed by an indirect antiglobulin test. The Jka and Jkb MAbs consistently gave the same phenotype results both on untreated DAT-positive red cells and on the same cells after CDP treatment. Two of the CDP-treated samples had diminished antigen expression with the MAbs, a finding that may have been caused by the CDP treatment. One untreated sample, which spontaneously agglutinated in a low-protein medium, was incorrectly phenotyped with the anti-Jka MAb, but both MAbs and PAbs gave the same correct results with the CDP-treated cells. These findings illustrate that the use of Jka and Jkb MAbs in phenotyping DAT-positive specimens is practical and beneficial.
Immunohematology
1994;10:16.
Cefotetan-induced immune hemolytic anemia due to the drug-adsorption mechanism
Authors: Eckrich R.J. , Fox S. , Mallory D.
Published: May 2021

Positive direct antiglobulin tests (DATs) associated with cephalosporin therapy have been reported, but rarely were associated with immune hemolytic anemia (IHA). In 1989, we described the first case of IHA associated with cefotetan (Cefotan™) causing hemolysis by the drug-adsorption mechanism. We now report the full details of our investigation. The patient was a 23-year-old female with a 2 1/2 year history of chronic ulcerative colitis. After 4 days of therapy with cefotetan (2 g/day), her hematocrit (Hct) decreased from 34.3% to 23.3%. The reticulocyte count was 6.9%. The DAT was 2+ (IgG only), and the serum and an eluate were nonreactive with a panel of standard reagent red blood cells (RBCs). Cefotetan therapy continued and the patient was transfused with two units of RBCs. On day 6 of therapy, the patient experienced an anaphylactoid reaction attributed to sensitivity to cefotetan. Cefotetan therapy was discontinued, the patient was treated with corticosteroids and epinephrine, and she was transfused with an additional unit of RBCs. Her Hct rose to 34.1% prior to her discharge on day 11. Further investigation revealed that the patient’s serum and an eluate contained an antibody that reacted with cefotetan- and cephalothin-coated RBCs by the indirect antiglobulin test. In a monocyte monolayer assay, monocytes readily phagocytized cefotetan- and cephalothin-coated reagent RBCs but not uncoated reagent RBCs. The patient’s serum did not react by the so-called immune-complex mechanism when cefotetan or cephalothin was added to the patient’s serum + complement + RBCs.
Glycine-EDTA treatment to prepare Ko red blood cells: preservation of high-frequency antigens
Authors: Julleis J. , Sapp C. , Kakaiya R.
Published: May 2021

Reactivity of high-incidence antigens after glycine-EDTA treatment of red blood cells (RBCs) to prepare artificial Ko RBCs was investigated. The treatment had little or no effect on Yta, JMH, Yka, Kna, and McCa. Hy antigen-positive-treated RBCs reacted less well with anti-Hy when compared to nontreated cells. Glycine-EDTA treatment to prepare Ko RBCs offers an advantage over AET treatment because it preserves some high-frequency antigens that AET treatment does not.
Hemolytic transfusion reactions due to anti-e+f detectable only by nonstandard serologic techniques
Authors: Devenish A. , Kay L.A.
Published: May 2021

A patient was transfused with a total of 14 units of red blood cells (RBCs) over 33 days (January 14 to February 15) at two hospitals. Febrile transfusion reactions were noted on three occasions, and hemoglobinuria was seen twice. Alloantibodies were not detected in a sample dated February 14, following a transfusion reaction, and this sample was referred to the North London Blood Transfusion Centre. Further samples were also obtained from before and after all transfusions at both hospitals. The patient’s RBCs typed as A, D+, probable Rh phenotype (cDE/cDE). The direct antiglobulin test was negative, and serum samples following the second transfusion were red/brown in color. Serologic investigations were inconclusive on all samples taken until February 13 (after the fourth transfusion). At this time, a weak anti-e reacting by manual polybrene technique and an anti-e+f reacting by two-stage papain technique were detected. The serum also contained potent HLA antibodies. The patient subsequently received leukocyte-depleted group A, cDE/cDE RBCs without any untoward effect. This case demonstrates the importance of a complete transfusion history and emphasizes that alloantibodies detectable only by nonstandard techniques can be clinically significant.
Immunohematology
1994; 10:120–123.
An example of anti-LWa in a 10-month-old infant
Authors: Devenish A.
Published: May 2021

Blood samples from a 10-month-old male infant requiring transfusion were found to contain an alloantibody reacting at 37°C in saline, by indirect antiglobulin test (IAT), and with a manual polybrene technique. Preliminary results suggested anti-D and another weaker reacting antibody, but the patient had been previously transfused with only D– blood. His serum reacted more weakly by IAT against red cells treated with 0.2M dithiothreitol (DTT), and one D+, LW(a–) sample was nonreactive. The patient’s red blood cells (RBCs) typed as B, D–, LW(a–), K–, Fy(a–). Due to the age and clinical status of the child, 51Cr survival studies were not performed. One pediatric unit of D–, K–, Fy(a–) blood was transfused uneventfully; the expected increment of hemoglobin was achieved. Repeat testing 3 months later showed a weakly positive DAT, the patient’s RBCs typed as LW(a+), and anti-LWa was detected only by a two-stage papain technique. These results suggest that the patient had a transient depression of LWa with a concurrent anti-LWa.
Immunohematology
1994;10:127–129.
A natural composite Higgs via universal boundary conditions
Authors: Blasi Simone , Csaki Csaba , Goertz Florian
Published: May 2021

We present a novel realization of a composite Higgs,
which can naturally produce top partners above the current LHC bounds
without increasing the tuning above 10%. The essential ingredients
are softened breaking of the Higgs shift symmetry as well as maximal
symmetry, which turn out to perfectly complement each other.
The 5D realization of this model is particularly simple:
universal UV and IR boundary conditions for the bulk fermions
containing the SM fields will cure the problems of existing
holographic composite Higgs models and provide a complete
viable model for a naturally light Higgs without much tuning.
ANONİM ŞİRKETLERİN KENDİ PAYLARINI İKTİSABININ HUKUKİ SONUÇLARI
Authors: ATAKAN Murat Can
Published: May 2021

Pay sahipleri kural olarak kendi paylarını serbestçe devredebilse de devralacak kişinin anonim şirketin bizatihi kendisinin olması, birtakım sorunları ve sınırlamaları da beraberinde getirmektedir. Bir anonim şirketin kendi paylarını iktisabı, kanun koyucu tarafından istisnai olarak kabul edilmiş ve söz konusu iktisap hem sınırlamalara tabi tutulmış hem de söz konusu payların -birtakım şartlar altında- elden çıkarılması zorunlu hale getirilmiştir. Şirketin kendi paylarını iktisabına ilişkin bu sınır ve şartlar, kanunda nispeten açıkça düzenlenmekle beraber, bunlara aykırılık durumunda işlemin ve iktisap edilen payların akıbetinin ne olacağı hususunda bir düzenleme bulunmamaktadır. Çalışmamızda öncelikle şirketin kendi paylarını iktisabının koşulları ve paya bağlı hakların kullanılamaması genel olarak açıklanmış, ardından da kanuna uygun ve kanuna aykırı olarak ikstisap edilen payların durumu ayrı ayrı izah edilmeye çalışılmıştır. Bu bağlamda payların elden çıkarılması zorunluluğu gerek TTK md. 379 gerekse TTK md. 382 ve 383 hükümlerine uygun olarak iktisap edilen paylar bakımından incelenmiş, ardından da payların yok edilmesi (itfa) zorunluluğu değerlendirilmeye çalışılmıştır. Ayrıca TTK’nın 493.maddesinde düzenlenen “kaçış klozu” bağlamında, şirketin kendi paylarını iktisabı incelenmiş ve bu bağlamda şirketin birtakım sınırlamalarla bağlı olup olmadığı değerlendirilerek kendi kanaatlerimiz aktarılmaya çalışılmıştır. Son olarak şirketin kendi payını iktisap etmesi halinde, yedek akçe ayırma zorunluluğu ve iktisap edilen payların bilançodaki durumu değerlendirilmiş ve sonuç kısmında konuya ilişkin kanaatlerimize yer verilmiştir.
The impact of banking sector development on economic growth: Comparative analysis of Ukraine and some EU countries
Authors: Rushchyshyn Nadiya , Mulska Olha , Nikolchuk Yuliia , Rushchyshyn Mariia , Vasyltsiv Taras
Published: May 2021

The effective functioning of the banking sector has a key impact on the stability of economic growth. The study is aimed at monitoring the banking sector development and identifying causality between the banking sector and economic growth. The methodological tools of the research are Principal component analysis, causal relationship, and vector regression modeling. The empirical study is based on the World Bank databank by eight components (for integral analysis) and seven indicators (for causality analysis). The study presents an improved algorithm for monitoring the level of banking sector development based on calculating the integral coefficient. According to assessment, the level of banking sector development and realization of its potential in Ukraine is low and significantly inferior to the EU countries; in 2000–2019, the development of the banking sector in Ukraine was 0.061-0.153. The results obtained confirmed the large discrepancy in the development of Ukraine’s banking sector with some EU countries (the highest lag values were observed with the Czech Republic and Poland). The causality analysis revealed a strong favorable relationship between the level of development of the banking sector in Ukraine and GDP per capita (0.796), a moderate one – with foreign direct investment (0.400), and a reverse relationship with the level of national poverty (0.678). This study is of practical value for identifying two possible trajectories of a country’s development, namely, sustainable development and economic turbulence, and has allowed forming a conceptual vision of the role of the banking sector in achieving social and economic goals.
The reaction of Asian-Pacific investment company returns to U.S. equity returns
Authors: D. Benson Earl , X. Kong Sophie
Published: May 2021

This study is relevant to investors who wish to diversify their investment portfolio by investing in U.S.-based investment companies that invest in specific Pacific Basin countries to better understand the diversification benefits of such investments. The purpose is to examine the daily returns of selected U.S.-based, country-focused (Pacific Basin) investment companies to see if those returns accurately reflect the changes of the equity indices of the corresponding Pacific Basin market on the following trading day. The method used is that the reactions of daily investment company returns compared to U.S. market daily returns are examined for Japan, South Korea, and Australia for the period 2006–2010. These return reactions are compared to the home-country returns. Next, for the period from 2011 to 2015, the examination is broadened to include U.S.-based investment companies that invest in Taiwan, Singapore, China, and Indonesia. The results show that investment company share prices on “day t” tend to overreact to changes in the S&P 500 on “day t”, relative to “day t+1” changes in the corresponding Pacific Basin market index – often by more than 100%. Finally, the study shows that on “day t+1” these investment company share prices exhibit a reversal. These findings indicate that the diversification benefits of investing in these Pacific Basin investment companies are reduced due to this increased volatility. S&P 500 returns are accompanied by significantly larger returns on the Pacific Basin investment company shares than are actually realized in the home country on the following day, suggesting that the diversification benefits are not being fully realized.
UM PANORAMA DAS PESQUISAS SOBRE PENSAMENTO COMPUTACIONAL EM PROGRAMAS DE PÓS-GRADUAÇÃO NO BRASIL
Authors: Berssanette João Henrique , Francisco Antonio Carlos de
Published: May 2021

Ao ter em vista o emergente fomento do desenvolvimento de habilidades relacionadas ao pensamento computacional, bem como uma variedade de pesquisas oriundas de trabalhos de mestrado e doutorado desenvolvidos a partir de programas de pós-graduação no Brasil sobre essa temática e a ausência de estudos específicos que retratam o panorama atual dessas pesquisas, este artigo se objetivou a identificar e caracterizar os estudos que tenham como foco o desenvolvimento do pensamento computacional ou que contemplem, em seus objetivos, o estímulo a tal pensamento por meio de práticas educacionais, provenientes de programas de pós-graduação no Brasil. Para isso, foi realizada uma pesquisa de revisão sistemática da literatura, entre os anos de 2010 a 2019. Por meio dessa pesquisa, selecionaram-se 71 estudos para compor a base da revisão, de forma a observar os quantitativos de pesquisas, as UF, instituições e programas de pós-graduação, as abordagens e o desenvolvimento, as práticas educacionais, os pressupostos teórico-pedagógicos, os recursos e/ou ferramentas utilizados, os níveis de ensino, as contribuições e as dificuldades relatadas de implementação de uso no contexto já aludido.
(DES)PLUGA: O PENSAMENTO COMPUTACIONAL APLICADO EM ATIVIDADES INOVADORAS
Authors: Nunes Natália Bernardo , De Bona Aline Silva , Kologeski Anelise Lemke , Batista Vithória da Silveira , Alves Lucas Pinheiro
Published: May 2021

Tendo em vista a necessidade da evolução dos métodos atuais de ensino, esta pesquisa engloba o desenvolvimento de atividades que abordam os conceitos de Pensamento Computacional, envolvendo os seus quatro pilares. As atividades dividem-se em dois grupos: o grupo das atividades desplugadas onde não há o uso de máquinas, e as atividades plugadas onde existe o auxílio de recursos digitais. Para isso, segue-se a metodologia pesquisa ação, com 6 etapas: revisão sistemática de literatura, elaboração, testagem, validação, correção e desenvolvimento do produto final, onde elas finalmente chegarão aos estudantes, primeiramente por meio dos docentes que auxiliarão a equipe na etapa de validação e posteriormente com ampla divulgação. Até o momento, em torno de 40 atividades já foram desenvolvidas, sendo que nesse artigo exemplificamos as atividades desplugadas já desenvolvidas e que estão em fase de validação com professores da escola básica. Também ocorreu a oportunidade de testagem de algumas atividades em um minicurso com estudantes, que contribuíram com comentários e diferentes visões sobre as metodologias. Ao longo da pesquisa, pretende-se concluir as demais etapas e auxiliar na formação de professores em Pensamento Computacional, inovando as metodologias utilizadas atualmente em sala de aula diante de uma geração de nativos digitais.
Aplikasi Pewarnaan Graf Pada Peta Provinsi Riau Menggunakan Algoritma Greedy
Authors: Rahma Ade Novia , Rahmawati Rahmawati , Zukrianto Zukrianto
Published: May 2021

Penelitian ini membahas tentang aplikasi pewarnaan graf pada peta Provinsi Riau menggunakan algoritma Greedy. Dalam aplikasi pewarnaan graf tersebut, terdapat beberapa langkah yang dikerjakan. Pertama mengubah gambar peta Provinsi Riau ke dalam bentuk graf. Kedua pewarnaan setiap kabupaten di Provinsi Riau menggunakan algoritma Greedy. Hasil akhirnya didapatkan pewarnaan graf di Provinsi Riau membutuhkan sebanyak empat warna yang berbeda.Kata kunci: algoritma Greedy, pewarnaan wilayah, teori graf.
Analisis Kemampuan Komunikasi Matematis Ditinjau Dari Gaya Belajar
Authors: K Ilham , Jahring Jahring , Subawo Made
Published: May 2021

Kemampuan komunikasi matematis merupakan salah satu indikator untuk mengetahui hail belajar matematika siswa. Jika kemampuan komunikasi matematis baik, maka besar kemungkinan hasil belajar matematika pun baik. Namun berdasarkan hasil observasi di SMA Negeri 1 Mawasangka tengah, bahwa kemampuan komunikasi siswanya belum optimal. Salah satu faktor penyebabnya adalah gaya belajar siswa. Beberapa penelitian tentang kemampuan komunikasi matematis siswa belum ada yang meninjau dari sudut pandang gaya belajar. Oleh karena itu, penelitian ini bertujuan mendeskripsikan profil kemampuan komunikasi matematis siswa berdasarkan gaya belajar (visual, auditroy, read/write, kinestetic). Indikator gaya belajar dalam penelitian ini adalah indikator yang dikembangkan oleh Fleaming yang meliputi gaya belajar unimodal (V,A,R,K), bimodal (VK, RK, VA, VR), trimodal (ARK, VRK, VAK, VAK), dan quadmodal (VARK). Jenis penelitian ini adalah deskriptif dengan pendekatan kualitatif, dengan subjek penelitian sebanyak 52 orang siswa kelas XI SMA Negeri 1 Mawasangka Tengah. Data hasil penelitian diperoleh dengan memberikan soal tes kemampuan komunikasi matematis dan kuisioner gaya belajar, selanjutnya dianalisis dengan teknik reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian menunjukkan bahwa kemampuan komunikasi matematis siswa ditinjau dari gaya belajar, termasuk dalam kategori sedang, baik pada unimodal, bimodal, trimodal, maupun quadmodal.Kata kunci: komunikasi matematis, gaya belajar, unimodal, bimodal, trimodal, quadmodal.