bluuebunny/crossref_metadata_2025 huggingface dataset:
Türkiye’de Kredi Kartı Harcamalarının Belirleyicileri ve Enflasyon Beklentilerinin Bu Harcamalar Üzerindeki Etkileri
Authors: TUNAY K. Batu
Published: July 2023

Birçok çağdaş ekonomi gibi Türkiye’de de kredi kartları ödeme sisteminin çok önemli bir parçasıdır ve hane halkı için son yıllarda vazgeçilmez bir ödeme aracına dönüşmüştür. Bu kartların harcamaları kredilendirme özelliği nedeniyle, bireysel banka kredilerinin de önemli bir parçası oldukları söylenebilir. Bahsi geçen özelliklerinden ötürü, kredi kartlarıyla yapılan harcamaların analizi ve bu harcamaları etkileyen değişkenlerin belirlenmesi para politikaları ve banka sistemi açısından son derece önemlidir. Çalışmamızda 2005 ve 2022 yıllarını kapsayan üç aylık ve aylık veriler kullanılarak, kredi kartı harcamalarının belirleyicileri araştırılmış, açıklayıcı değişkenlerdeki değişimlerin kart harcamaları üzerinde yol açtığı değişimler saptanmaya çalışılmıştır. Analiz sürecinde gözlenebilen değişkenler yanında doğrudan gözlenemeyen bazı değişkenler de kullanılmıştır. Doğrudan gözlenemeyen değişkenler (örneğin enflasyon beklentileri ve beklenti hataları gibi), durum-uzay modelleri ile hesaplanmış ve bunlar diğer analizlere girdi teşkil etmiştir. Alternatif modellerin bazı sonuçları çelişkili olsa da kredi kartı harcamalarının enflasyon ve ücret artışı beklenti hataları ile harcanabilir gelir düzeyindeki değişimlere duyarlı olduğu görülmüştür. Ayrıca kredi kartı harcamalarının güçlü bir geçmişe bağlılık sergilemesi, kartla yapılan toplam harcamalar içinde taksitli harcamaların önemine bağlanmıştır.
Katılım Sigortacılığı Şirketlerinin 2019-2021 Yılları Arasında Veri Zarflama Analizi ile Etkinliklerinin Ölçülmesi
Authors: TANİLYAN SÜRER Tilda , CATİKKAS Ozgur
Published: July 2023

Sigortacılık, Dünya’da önemli yere sahip bir sektördür. Bu sektörün için de var olan Katılım Sigortacılığı 2009 yılında Türkiye’de yerini almış ve tercih edilmeye başlanmıştır. Muhasebe kayıt işlemleri, finansal raporlama gibi konularda katılım sigorta şirketlerinin, konvansiyonel sigortada kullanılan tek düzen hesap planı dikkate alınmakta ve finansal raporlama da kapsamlı şekilde oluşturulmaktadır.

Katılım sigorta ürünlerinin sunulduğu şirketlerle ilgili olarak, etkinlik durumlarının ne ölçüde olduğu önemli bir sorudur. Etkinlik ölçümü, şirket hakkında kaynaklarının verimli kullanımı ve faaliyetlerinin etkin şekilde yürütüp yürütemediğini analiz ve etkin olmadığı durumlar için nasıl bir iyileştirme yapabileceği seçeneklerini tespit etmektedir. Çalışmadaki amaç Veri Zarflama Yöntemi ile 2019 2021 yılları arasında katılım sigorta ürünleri sunan şirketlerin etkinliklerini, ilgili girdi ve çıktı değişkenleriyle ölçerek değerlendirmek, değerlendirmeler sonucu etkinlik skorlarına bakılarak, iyileştirmeler hakkında bilgi vermektir. Etkin şirketlerin etkin olmayan şirketlere referans olma oranları yazılarak referans grupları oluşturulmuştur. Elde edilen sonuçlar, şirketlerin ortalama etkinlik skorlarının, yıldan yıla arttığını göstermiş ve ilgili öneriler yapılmıştır.
Bir Samanyolu Tarifi
Authors: PLEVNE Olcay
Published: July 2023

Bu çalışmada Samanyolu'nun oluşumu ve evrimi Geciken İkili Çökme Modeli kullanılarak araştırılmıştır. APOGEE, GALAH ve Gaia gökyüzü taramalarından hassas bir şekilde seçilen yıldız örneği kullanılarak galaksi merkezinden düzlemne 5-11 kpc uzaklığı arasındaki disk bölgesi 2 kpc genişliğinde üç bölgeye ayrılarak beş element için modellenmiş ve modelden elde edilen bilgiler gözlemsel bulgularla karşılaştırılmıştır. Çalışmada elde edilen gözlemsel ve modelsel gradyent sonuçları ince disk için literatürle uyumlu sonuçlar elde edilirken kalın disk için literatürden farklı olarak hassas negatif bir radyal element bolluğu gradyenti elde edilmiştir. Modelden elde edilen sonuçlar literatürdeki genel kanının aksine Galaksi diskinin oluşumunun dıştan içe bir oluşum senaryosuyla açıklanabileceğini göstermektedir.
Yeni Tanımlanmış Yüksek Çözünürlüklü Çizgi İndeksleri Kullanılarak Fornax Kümesindeki Cüce Eliptik Galaksilerin Element Bolluk Oranları
Authors: ŞEN AYDEMİR Şeyda , GOGUS Ersin
Published: July 2023

Cüce Eliptik Galaksiler (dwarf elliptical galaxies, dEs), galaksi kümeleri içinde çok sayıda ve baskın tür olarak bulunurlar. Bu çalışmada çözümlenmemiş küçük yıldız sistemlerinin yıldız popülasyonu çalışmaları için kullanılacak yeni bir yüksek çözünürlüklü tayfsal indeksler setini tanımlayıp, bunları kullanarak, Fornax galaksi kümesinde bulunan 8 dEs yıldız popülasyonlarının ayrıntılı bir incelemesini sunuyoruz. Bu çalışmada 11 elemente ait 23 yeni çizgi indeksi tanımlanmıştır. Gözlem verileri Sidney-Avusturalya Gözlemevinde bulunan 3.9m çapa sahip AAT’ye takılı olan Çoklu-Obje İntegral Alan Tayfmetresi (SAMI) ile elde edilmiştir. Sekiz dE’nin yeni yüksek çözünürlüklü indeks sistemimizde ölçülen çizgi kuvvetleri, yıldız popülasyon modelleri yardımıyla analiz edilmiştir. Bu kadar çok sayıda elemente ait bolluk oranı vekilleri, daha önce Yerel Grup dışındaki cüce eliptik galaksiler için hiç çalışılmamıştır. Sonuçlar, Yerel Grup'taki çözümlenmiş yıldızların bolluk oranları ve daha büyük erken tip galaksilerin integral ışığından alınan indekslerle karşılaştırılır. Tüm galaksilerimizin, Samanyolu diskiyle tutarlı bir bolluk oranları modeli gösterdiğini, yüksek kütleli emsallerine kıyasla yavaş oluşumun göstergesi olduğu bulunmuştur.
Galaksi Kümelerindeki Kırmızı-Kol Galaksilerinin Evrimi
Authors: ÜLGEN Eyüp Kaan , ALİŞ Sinan , ÇAKIR Oğuzhan , YELKENCİ Fuat Korhan , FİŞEK Süleyman
Published: July 2023

Bu çalışmada galaksi kümelerinin renk-parlaklık diyagramlarından belirlenen kırmızı kol galaksileri, hem küme merkezinde hem de kümenin dış kısımlarında incelenmiştir. Kırmızı kol galaksilerinden itibaren belirlenen sönük/parlak (ing. faint-to-lum, F/L) galaksi oranlarının hem ortam yoğunluğuna hem de kırmızıya kaymaya bağlı değişimi araştırılmıştır. Çalışmada iki farklı yöntemle, iki ayrı verisetinden belirlenmiş galaksi kümeleri kullanılmıştır. CFHTLS-W1 alanında galaksi yoğunluğunu esas alan WaZP algoritması ile Subaru HSC-SSP taramasında renk-parlaklık diyagramlarını kullanan CAMIRA algoritmalarının belirlediği kümeler incelenmiştir. Galaksilerin küme içindeki konumlarından bağımsız olarak, düşük kırmızıya kaymalardaki sönük/parlak galaksi oranının yüksek kırmızıya kaymalara göre daha yüksek olduğu belirlenmiştir.
Assessment of the natural killer cell, IFN-ƒ× and IL-10 blood levels in children with attention-deficit/hyperactivity disorder
Authors:   Department of Pediatrics, Faculty of Medicine, Al-Azhar University, Cairo, Egypt., El Sehmawy Asmaa , Abd Elaziz Shaimaa , Diab Fatma Elzhraa , Al Anany Mona , Elamir Reham , Ibrahim Hanan , Seliem Nora , Agiba Nglaa
Published: July 2023

Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder, affects millions of youngsters and typically persists into adulthood. The pathophysiology of ADHD may be due to an impaired immune response, common genetics, and environmental linkages, as all have been suggested as potential underlying mechanisms for ADHD. During systemic inflammation, natural killer (NK) cells can produce pro-inflammatory cytokines like interferon (IFN- g) and anti-inflammatory cytokines like interleukin (IL-10); this demonstrates the importance of both of their roles as regulators to counteract inflammation and prevent immune-mediated host damage. In this work we aimed to determine the role of inflammation in children with ADHD by measuring the level of NK cells in peripheral blood compared to typically developing children besides estimating the inflammatory cytokines INF-g and IL -10 in both groups. This study included 50 children diagnosed with ADHD based on the Diagnostic and Statistical Manual of Mental Disorders-5th edition and 50 age and sex- matched normally developed children, as controls. The estimation of NK was done using flow cytometry, while the studied cytokines were measured using the ELISA technique. We found that children with ADHD had a significantly higher level of NK cells in peripheral blood compared to controls (p<0.001). Furthermore, increased IFN –g, while decreased IL-10 serum levels were observed in children with ADHD compared to their control group. In conclusion our findings suggested that children with ADHD may have impaired immune responses, as NK cells were increased in peripheral blood compared to the control group. Also, the serum level of IFN –g was higher, while the serum level of IL-10 was lower in ADHD children as compared to controls.
Plasma brain natriuretic peptide, D-Dimer, and serum troponin-I as predictors for in-hospital death in patients with COVID-19
Authors:   Department of Clinical Pathology, Faculty of Medicine, Assiut University, Assiut, Egypt., Mahmoud Amal , Abd El-Hafeez Heba , Ali Areej , Hassan Ayman , Seddik Mohamed
Published: July 2023

The severe acute respiratory syndrome coronavirus 2, first appeared in Wuhan, China, in December 2019. Since then, a variety of strains of the virus were spread throughout the world, prompting the World Health Organization to declare a pandemic in March 2020. Additionally, Coronavirus disease 2019 (COVID-19) can cause a variety of symptoms, ranging from fatigue and fever to severe respiratory and cardiovascular complications. This study evaluated the role of brain natriuretic peptide (BNP), troponin-I and D-dimer as biomarkers for death prediction in hospitalized patients with COVID-19. The study included 90 patients with COVID -19 diagnosed with PCR-RNA testing. They were divided into survivors and non-survivors. Also, 20 apparently healthy individuals age and sex matched were included as a control group. Plasma BNP and serum troponin-I were measured by enzyme linked immune-sorbent assay (ELISA) technique. D-dimer was measured by a turbidimetric technique. Patients with COVID-19 had significantly elevated levels of serum Troponin-I and plasma BNP in comparison to controls (p< 0.0001, for both). D-dimer, troponin–I and BNP levels were significantly higher in the non-survivors group when compared to the survivors group. Troponin-1 can predict COVID-19 severity with sensitivity, specificity, and accuracy of 55.1%, 66.7%, and 57.8%, respectively at a cutoff value of 0.075 (ng /ml); and area under the receiver operating characteristic (AUC) curve of 0.670 (95% CI: 0.551 – 0.790, p=0.018). BNP can predict COVID-19 severity with sensitivity, specificity, and accuracy of 98.6%, 71.4%, 92.2%, respectively at a cutoff value of 16.02 (Pg /ml) and AUC of 0.872 (95% CI: 0.778 – 0.965, p<0.001). Univariate and multivariate logistic regression analysis showed that only BNP level can significantly predict death among COVID-19 infected patients. In conclusion, plasma BNP and serum troponin-I could be used as prognostic biomarkers for determination of the severity of COVID-19 and BNP could predict mortality.
The role of circulating cell-free DNA and its integrity as a biomarker for diagnosis of breast cancer using ALU (247/115) bP sequences
Authors:   epartment of Clinical Pathology, Faculty of Medicine, Assiut University, Assiut, Egypt., Abd El Hafeez Heba , Abd El Rahman Mohammed , Kamel Tahra , Rezk Khaled , Mohamed Fatma , Abdel-Hameed Zeinab
Published: July 2023

of breast cancer by using sensitive and specific biomarkers is necessary. Cell– free DNA (cf-DNA) is a candidate biomarker in various cancers. Contrasting, shorted uniformed DNA released from apoptotic non-diseased cells, DNA released from malignant cells varies in size. DNA integrity is a ratio between 247 and 115 bp. This study aimed to evaluate the diagnostic values of cf-DNA using ALU -247 and ALU- 115 and DNA integrity in peripheral blood of breast cancer patients as a noninvasive marker. Also, to determine correlations between ALU-247 and ALU-115, DNA integrity, cancer antigen (CA )15-3 and carcinoembryonic antigen (CEA) with each other in breast cancer patients and in different stages of breast cancer. This study included 100 females, divided into 3 groups. The first group consisted of 20 apparently healthy females as the control group. The second group included 20 patients with benign breast lesions. The third group included 60 patients with breast cancer. Serum levels of both ALU-247 and ALU-115 as well as cf-DNA integrity were statistically significant higher in breast cancer patients as compared to the control group (p=0.018, p<0.001 and p=0.009 respectively). Compared to the control group, ALU-247 had the best diagnostic sensitivity for diagnosis of breast cancer (86.78%) with 75% specificity with area under the curve of 0.848. We concluded that measuring ALU-247, ALU-115 and DNA integrity in peripheral blood would be a promising novel approach for diagnosis and early detection of breast cancer.
Comparison of human immunodeficiency virus and syphilis results in pooled sera versus individual samples of blood donors attending suez canal university hospital
Authors:   Department of Clinical Pathology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt, P.O. 41522., Ghoneim Menna , Attia Fadia , Kamaleldin Hagar , Mohammad Mai
Published: July 2023

Egypt is one of the countries where sexually transmitted diseases like human immunodeficiency virus (HIV) and syphilis are least prevalent. HIV and syphilis count less than one percent of total Egyptian population. An ELISA protocol for pooling serum samples is simple and may provide a way to reduce the cost and time needed for analysis. This study aimed to investigate the applicability and reliability of testing pooled sera of blood donors for HIV and syphilis compared to testing their individual sera and to assess the cost-effectiveness of this procedure. The study included 75 sera from randomly selected blood donors attending Suez Canal University hospital. Sera were screened by two ELISA kits, HIV Ag-Ab ELISA kit, and syphilis total antibody ELISA kit. Screening protocols were done by two sequential steps. At first, samples in pools of five were screened for both HIV and syphilis then, samples in positive pools were individually retested. There was no significant difference between the mean optical density for samples tested HIV and syphilis positive either individually or in pooled sera. There was no difference between the number of individual sera, tested positive for both HIV and syphilis and their pooled sera results (100 % positivity). There was significant decrease of the mean cost in one pool of 5 samples (16.5 L. E) in comparison to 5 individual samples (82.5 L. E) by HIV ELISA. Also, there was significant decrease of the mean cost in one pool of 5 samples (16 L.E) in comparison to 5 individual samples (80 L.E) by syphilis ELISA. In conclusion, the studied pooling protocol appeared reliable and can save up to 80 % of the cost for testing either HIV or syphilis by regular procedures.
Soluble CD163 impact as a prognostic biomarker in chronic lymphocytic leukemia
Authors:   Department of Biochemistry, National Research Centre, Institute of Biotechnology Research, Cairo, Egypt., Ragab Halla , Attia Hanaa , Maksoud Nabila , Ibrahim Mona , Mohamed Mai , Kamel Abdelkarim , Sobeih Mohamed , Kamal Mohamed , Abd Elaziz Wafaa
Published: July 2023

Department of Biochemistry, National Research Centre, Institute of Biotechnology Research, Cairo, Egypt.
The effect of hemodiafiltration vs. high-flux hemodialysis on alpha 1-microglobulin level and dialysate albumin loss using a dialyzer surface area of 2.6 m²
Authors:   Department of Internal Medicine, Nephrology Unit, Faculty of Medicine, Ain Shams University, Cairo, 11566, Egypt., ElSayed Hesham , Fathy Mohamed , Khedr Abdelrahman , Hussein Hussein , Elbraky Abdelrahman , ElSharkawy Magdy
Published: July 2023

Dialysis therapy has remarkably evolved through the innovation in dialyzers and hemodialysis modalities, enhancing patients’ quality of life. The efficacy of dialysis can be determined by measuring the reduction ratio (RR) of middle molecules, such as alpha 1-microglobulin (A1M). In this study, we tested a high-flux dialyzer, BIOPURE (Biorema) 260 HF, with a surface area (SA) of 2.6 m2, in terms of A1M removal and concurrent albumin loss in dialysate while receiving high-flux hemodialysis (HF-HD) and post-dilution online hemodiafiltration (OL-HDF). This crossover study comprised 25 patients who received a session of HF-HD using the BIOPURE (Biorema) 260 H, followed by a session of post-dilution OL-HDF. A washout period of 2 weeks was instilled between the two sessions, during which the patients received HF-HD using high-flux dialyzers (maximum SA 2.0 m2). All patients’ hourly dialysate albumin and pre/post dialysis concentrations of A1M were measured. The dialyzer used in this study resulted in significantly higher A1M RR of 41.9±7.93% with HDF than with HF-HD 27.12±7.65% (p<0.001), and a median cumulative dialysate albumin loss of 2.97g (IQR 1.98 – 3.37), and 0.67g (IQR 0.49 – 1.13) with HDF and HF-HD, respectively. In conclusion, the dialyzer BIOPURE (Biorema) 260 HF (SA 2.6 m2) is efficient in eliminating A1M, especially with OL-HDF compared to HF-HD, with acceptable albumin loss in the dialysate.
Association of IL-17A rs2275913, IL-23R rs11209026 polymorphisms and serum level of IL-17A with rheumatoid arthritis in Egyptian patients
Authors:   Department of Medical Microbiology & Immunology, Faculty of Medicine, Sohag University, Sohag, Egypt., Abdellah Hala , Mohamed Mona , Esmail Mohamed , Goda Asmaa
Published: July 2023

Several studies have reported genetic polymorphisms at the IL-23/IL-17 axis linked to rheumatoid arthritis (RA) in many populations. We aimed to investigate the association of IL-17A rs2275913 and IL-23R rs11209026 polymorphisms with susceptibility to RA and, disease clinical features and the serum level of IL-17A in Egyptian patients. This case-control study included 94 RA cases and 74 controls. TaqMan genotyping assays were used for detection of gene polymorphism and the enzyme-linked immunosorbent assay was used to quantify IL-17A serum level. There was significant difference between RA patients and controls in genotypic distribution and allelic frequency of IL-17A rs 2275913 (p <0.0001). The GG genotype had 7 times higher risk for RA development (OR=7.04: 95% CI 2.11:23.46, p value= 0.001). Also, GG genotype was associated with higher level of serum IL-17 A compared to GA and AA genotypes (p<0.0001). Moreover, patients carrying the GG genotype had higher disease activity score 28 (DAS28) score (4.99±0.84) compared to patients with GA (2.73±0.52, p<0.0001) and patients with AA genotypes (2.67±0.41, p<0.0001). Genotypic distribution of IL-23R rs11209026 was significantly different between RA patients and controls (p <0.0001), but there was no difference between the allelic frequency in both groups (p=0.08). IL-23R rs11209026 SNP was not a risk for RA development. However, DAS28 was lower in AA genotype than AG and GG genotypes (p=0.002, p=0.009 respectively). The mean serum IL-17A level was higher among the RA patients (39.07±10.47 pg./ mL) compared to controls (15.23±1.88 pg/ mL; p <0.0001). Also, there was a positive correlation between IL-17A serum level and DAS28 score (Spearman r = 0.42; p value <0.0001). We concluded that the variant IL-17A (rs2275913) genotype could be a risk factor for RA in our population and IL-17A may play a crucial role in the development and pathogenesis of RA.
Serum level of MicroRNA 15a and interleukin 6 as biomarkers for sepsis in critically Ill Patients
Authors:   Department of Medical Microbiology & Immunology, Faculty of Medicine, Cairo University, Cairo, Egypt., Nader Doaa , Abdelmaseeh Mona , Al Sharif Rania , Samir Nermin
Published: July 2023

This study intended to evaluate the diagnostic efficacy of serum interleukin-6 (IL-6) and serum expression level of microRNA 15a (miRNA 15a) in sepsis patients admitted to the medical intensive care unit (ICU), and to correlate the results with the outcome of patients. This observational case-control study, was done from January 2022 to June 2022, included 75 adult ICU patients ≥18 years old, divided into 2 groups. Group 1: included 38 adults, critically ill sepsis patients and Group 2 (control group), included 37 adults, non-sepsis patients admitted to the ICU. Venous blood was withdrawn from cases and controls under aseptic conditions for assessment of serum IL-6 level by ELISA and serum expression level of miRNA 15a by quantitative reverse transcriptase real-time polymerase chain reaction (qRT-PCR). Patient demographic data in addition to their characteristics including site of infection, blood culture results, length of stay and outcome of patients were included in the study. miRNA 15a was significantly higher in the sepsis group with mean of 3.99±1.61 compared to the controls (1.03±0.03, p< 0.001) while serum IL-6 levels were higher in the sepsis patients compared to the controls, however the difference did not reach statistical significance (p= 0.92). No difference was found in IL-6 and miRNA 15a levels between surviving and non-surviving sepsis patients, shocked and non-shocked sepsis patients. In conclusion, both IL-6 and miRNA 15a were up-regulated in ICU patients with sepsis. Both biomarkers did not show a significant difference regarding the outcome of patients. miRNA 15a could be considered a highly speciﬁc and sensitive marker in differentiating sepsis cases from controls, so it could be used as a diagnostic rather than a prognostic biomarker for sepsis.
Transmembrane Protein 187 (TMEM187) and Interleukin 1 Receptor Associated Kinase (IRAK1) gene polymorphism association with rheumatoid arthritis susceptibility in Egyptian patients
Authors:   Department of Clinical & Chemical Pathology, Faculty of Medicine, Beni-Suef University, Beni-Suef, Egypt., Zaghloul Heba , Abdelshafy Sanaa , Abdelaleem Enas , Ali Hala , Khattab Rasha
Published: July 2023

Rheumatoid arthritis (RA) is a chronic auto-inflammatory disease of connective tissue with progressive joint damage and systemic disorders. RA is considered a multifactorial disease triggered by a genetic predisposition and environmental factors. Polymorphisms have been identified in the Xq28 locus as risk loci for RA. The aim of study was to assess the association between two polymorphisms in the Xq28 region containing Transmembrane Protein 187 (TMEM187) gene (rs13397) and interleukin1 receptor associated kinase (IRAK1) gene (rs1059703) with the disease susceptibility and activity in Egyptian RA patients. This study was conducted on 100 RA patients and 100 age and sex matched normal controls, together were recruited from the Rheumatology Department, Beni-Suef University Hospital. We detected TMEM187 (rs13397) and IRAK1 (rs1059703) gene polymorphisms using the real time PCR TaqMan allelic discrimination assays. We found that the frequency of the major genotypes (GG) of TMEM 187 gene was higher in RA group (54%) compared to controls (50%); while the minor genotypes (AA) was higher in the control group (22%) compared to the diseased one (18%), but such differences did not reach statistical significance (p=0.599). Regarding the IRAK1 gene, we revealed that the frequency of the major genotypes (AA) of the rs1059703 was slightly higher in RA group (48%) compared to controls (46%); while the minor genotypes (GG) was the same in both groups (26%). However, there was higher incidence of minor genotype in the TMEM187 and IRAK1 genes in males; with a statistical significance (p=0.004 and 0.015, respectively). We concluded that the major allele G of TMEM187(rs 13397) could be considered as a risk genetic allele for RA in Egyptian populations.
Evaluation of CTLA-4 (+ 49A/G) polymorphism association with rheumatoid arthritis in Egyptian patients
Authors:   Department of Clinical Pathology, Faculty of Medicine, Ain Shams University, Cairo, Egypt., Ragab Dina , Hammoda Rasha , EL-Gharbawy Nermin , Salem Ramy
Published: July 2023

Cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) is an inhibitory molecule that has an essential role in T-cell homeostasis and self-tolerance because of its inhibitory signals. Genetic polymorphisms in the CTLA-4 gene have been associated with several autoimmune diseases. We aimed to assess the association between the CTLA-4 +49 A/G polymorphism (rs231775) and rheumatoid arthritis (RA) in Egyptian RA patients. The study included 104 RA patients and 81 apparently healthy control individuals. The polymorphism was assessed using restriction fragment-length polymorphism analysis. Genotype distribution was compared between patients and controls under different models of inheritance. Under the codominant model, RA patients showed a higher frequency of AG and GG genotypes compared to the control subjects (p=0.0092). Under the dominant model, RA patients showed a higher frequency of AG and GG genotypes grouped together compared to control subjects (p=0.0026). Under the over-dominant model, the AG genotype was more frequent in RA patients compared to control subjects (p= 0.0395). No association was observed between CTLA-4 polymorphism rs231775 and RA using the recessive model (p=0.1356). A significant association was observed between carrying the G allele and the presence of RA (p=0.0032). In conclusion, our findings showed a positive association between the CTLA-4 gene +49 A>G polymorphism and RA. However, discrepancies in literature reflect both ethnic variability in CTLA-4 gene polymorphisms as well as the complex pathogenesis of RA.
Sustainability of Nuclear Fuel Resources in Indonesia with Open and Closed Fuel Cycle
Authors: Dwijayanto R. Andika Putra
Published: July 2023

In the wake of climate change and global warming, various alternatives are being considered as a potential replacement for fossil fuels. Despite often being overlooked, nuclear power offers many benefits as a low-carbon energy source. Being a thermal power plant, nuclear power can generate energy reliably without relying on weather without emitting greenhouse gases during its operation. Serialised construction can reduce the capital cost, which often touted as expensive. Due to the commitment to the Paris Protocol, Indonesia is obliged to achieve carbon neutrality in its energy generation, and nuclear power is a plausible option to replace fossil fuel generation. One of the questions regarding nuclear power deployment in Indonesia is the sustainability of the nuclear fuel, especially considering its domestic resources both uranium and thorium. This study estimates how long uranium and thorium resources in Indonesia will last when used to power the nuclear power plants with open and closed fuel cycles. Several reactor designs were considered. The calculation result shows that domestic nuclear fuel resources in Indonesia can be sustainable enough, provided that closed nuclear fuel cycle is deployed.
COST-UTILITY OF VARIOUS BIOLOGIC VERSUS ENDOPROSTHETIC RECONSTRUCTION FOR PRIMARY BONE SARCOMA OF THE HUMERUS
Authors: Watcharamasbonkkot Sittichoke , Punyaratabandhu Thipachart , Srisawat Phutsapong , Veerapan Puwadon
Published: July 2023

Background: The development of bone sarcoma treatment has resulted in a higher survival rate of patients including the developed surgical treatment called limb salvage surgery. Reconstructive surgery plays a vital role among patients and their quality of life after treatment. However, cost-effectiveness is another crucial factor in choosing a treatment method.

Methods: Eighteen patients with osteosarcoma were recruited in this study. All were treated using limb salvage surgery. The data were collected using the utility coefficient from the EQ-5D-5L Health Questionnaire. The patient’s medical cost was obtained from Phramongkutklao Hospital, and all data were calculated for cost-effectiveness using the cost-utility analysis.

Results: Endoprosthesis reconstruction exhibited the highest utility value of 0.85 QALY and the lowest treatment complications. Nevertheless, the most increased cost was an average of 238,432.34 THB. In terms of cost, the recycled autograft showed the lowest treatment cost at an average of 60,774.61 THB. However, the complication of this method was quite severe, with a 50% recurrence rate. Allograft reconstruction was the most cost-effective method with a lower cost than endoprosthesis reconstruction (61,341.40 THB), despite having a lower utility of 0.49 QALY.

Conclusion: This study reported that endoprosthesis reconstruction resulted in more optimistic patient well-being but still indicated high cost. Using one-way sensitivity analysis, the QALY gain was only 16.9% of Thai per capita. When the cost of endoprosthesis reconstruction was reduced by only 15%, it could replace allograft reconstruction. In addition, an increase of the QALY, gaining only 20% of the average Thai per capita, would be cost-effective when the expense of endoprosthesis reconstruction was reduced by 4%.
EKOPOLIMERLАRNING АVFZАLLIKLАRI VА OLINISHI
Authors: Asqarov Ibrohimjon Rahmonovich , Xamdamova Madina Dilmurod qizi
Published: July 2023

Polimer maxsulotlari tabiiy yoki sintetik yuqori molekulyar birikmalar asosidagi tayyorlanadigan organik materiallar xisoblanib, sanoatda va ishlab chiqarishda materiallarining qator qulayliklari bilan ajralib turadi. Ammo  foydalanilgandan so’ng  utilizatsiya qilish jarayonida kimyoviy va maishiy zaharli moddalarni ajralishi va chirish muddatining o’rtacha 500 yildan ziyodroq muddatda ekanligi juda kata ekologik muammo hisoblanadi. Bugungi kunda koʼplab tabiiy va zararsiz biokomponentlarning kimyoviy tarkibi va xossalarini oʼrganish, polimer maxsulotlarini boshqa zararsiz boʼlgan soopolimer va biopolimerga almashinish imkonini beradi. Ushbu maqolada biopolimerlar (ekopolimer) kompozitsiyalarini tayyorlash va qoʼllash usullari keltirilgan.
RATSEMIK 3-METIL-3-AMINOPENTIN-1 OPTIK FAOL ANTIPODLARINI DIASTEREOMERIZATSIALASH YO'LI BILAN AJRATISH
Authors: Abdullayev Tohir Xasanboyevich , Isobayev Muzafar Jumaevich , Asqarov Ibrohimjon Rahmonovich , Abdulloyev Obidjon Shaxabidinovich
Published: July 2023

Maqolada ratsemik 3-metil-3-aminopentin-1 ni L-(+)-tartrat kislotasi yordamida diastereomerizatsiya yoʻli bilan optik faol antipodlarga ajratish boʻyicha tadqiqotlar natijalari keltirilgan. Olingan birikmalarning tuzilishi IQ va YaMR spektroskopiya metodlari yordamida o'rganildi.
ZA’FARON GULTUMSHUQCHALARINING MAKRO VA MIKRO ELEMENTLAR TAHLILI
Authors: Asqarov Ibrohimjon Rahmonovich , Ubaydullayev Komiljon Tursunboyevich
Published: July 2023

Za’faron gultumshuqchalari tarkibida bir qator organik moddalar bilan birga ba’zi noorganik birikmalar hamda mikro va makroelementlarni saqlaydi. Ushbu maqolada za’faron gul tumshuqchalari tarkibidagi bir qator mikro va makroelementlar tahliliga qaratilgan tadqiqotimiz natijalari bayon etilgan.
ACHCHIQ TARVUZ ASOSIDA OLINGAN OZIQ-OVQAT QO‘SHILMALARI TARKIBIDAGI BIOLOGIK FAOL MODDALARNING ANTIOKSIDANTLIK FAOLLIGINI ANIQLASH
Authors: Asqarov Ibrohimjon Rahmonovich , Topvoldiyev To’lqinjon , Mirzayeva Zubayda Odiljon qizi
Published: July 2023

Ushbu maqolada Andijon viloyatida ekilgan achchiq tarvuzning urug‘i va po‘stlog‘i tarkibidagi biologik faol moddalarning kimyoviy tarkiblari, shifobaxshlik xususiyatlari, xamda xalq tabobatida qo‘llanilishi va biologik faolligini aniqlash maqsadida adrenalinning in vitro sharoitida autooksidlanish metodi yordamida achchiq tarvuzning antioksidantlik faolligi aniqlandi.
ANORNING MEVA PO’STI VA URUG’I TARKIBIDAGI OQSIL MIQDORINI ANIQLASH
Authors: Isaqov Xayatulla , Asqarov Ibrohimjon Rahmonovich , To'raxonov Shoxrux Odiljonovich
Published: July 2023

Tadqiqotning maqsadi anorning Tuyatish va Qayin navlari meva po‘sti va meva urug’i tarkibidagi oqsillarni aniqlash va ularning foiz miqdorlarini o’rganish. YuSSX (Yuqori samaraliy suyuqlik xromatografiya)sida oqsilning foiz miqdori aniqlandi. Natijalar Qayin anor meva po’sti va urug’I tarkibidagi oqsillarning foiz miqdorini Tuyatish navli meva po’sti va urug’i tarkibidagi oqsillarga taqqoslab o‘rganish natijalari keltirilgan. Tuyatish navi tarkibidagi oqsillarning foiz miqdorlari Qayin navining meva po’sti va urug’i tarkibidagi oqsillarining foiz miqdorlari ko’pligi aniqlandi.
ARTISHOK O‘SIMLIGI TARKIBIDAGI KIMYOVIY BIRIKMALARNING BIOLOGIK FAOLLIGINI BAHOLASH
Authors: Yusupov Muxamamdyusup Avazbek o’g’li , Asqarov Ibrohimjon Rahmonovich , Mo'minov Mo‘ydinjon , G’opirov Kamoliddin G’opirovich
Published: July 2023

Tadqiqot jarayonida artishok (Cynara scolymus L.) oʼsimligi tarkibidagi kimyoviy birikmalarning biologik faolligini “Pass online” dasturi yordamida nazariy tahlil qilinib, undagi kimyoviy birikmalarning biologik faolliklari darajasi baholangan. Maqolada artishok oʼsimligining tarqalish mintaqalari, tanasi, bargi, guli va urugʼidan olingan moyning kimyoviy tarkibi natijalari keltirilgan. Oʼsimlikning xalq tabobati hamda tibbiyotda qoʼllanilishi atroflicha yoritilgan.
LAVANDA VA UNING XALQ TABOBATIDA QO‘LLANILISHI
Authors: Asqarov Ibrohimjon Rahmonovich , Razzaqov Nabijon Alijonovich
Published: July 2023

Ushbu maqolada Lavanda o‘simligining kimyoviy tarkibi, undan xalq tabobatida qo‘llash o‘rinlari aytib o‘tilgan. Aynan axoli orasida ortib borayotgan nevrologik xastaliklar, bir oz narsaga asabiylashishi, miyada qon aylanishining buzilishi kabi kasalliklarda o‘simlik gulidan foydalanish keltirilgan. Uning tarkibidagi murakkab efirlar hamda terpenoidlarning ahamiyati birilgan.
ARTEMISIA ANNUA L. O‘SIMLIGI ASOSIDA YANGI BIOLOGIK FAOL OZIQ-OVQAT QO‘SHILMASI “O‘SQAR” NING KIMYOVIY TARKIBI
Authors: Asqarov Ibrohimjon Rahmonovich , Abdulloyev Obidjon Shaxabidinovich , Matamirova Sharifa Akramovna
Published: July 2023

Mazkur maqolada O‘zbekistonda o‘sadigan bir yillik shuvoq (Artemisia annua L.), shivit va jambil o‘simliklari asosida yaratilgan “O’sqar” biologik faol oziq-ovqat qo‘shilmasining tovar sifat ko‘rsatkichlari, kimyoviy tarkibi tadqiqi natijalari keltirilgan. Ma’lum bo‘lishicha, yangi BFQ makro-, mikroelementlarga, polifenollarga boy bo‘lib, saraton kasalliklarini oldini olish va davolashda foydalanish mumkin.
YONG‘OQ MEVASI TARKIBIDAGI BO‘QOQ VA GEPATIT KASALLIKLARINI DAVOLOVCHI MODDALARNING KIMYOVIY TUZILISHI
Authors: Asqarov Ibrohimjon Rahmonovich , Nizomov Biloliddin Xusanboy o'g'li
Published: July 2023

Biologik faol moddalar tibbiyotda va kasalliklarning oldini olishda, shuningdek, yuqori darajadagi hayotiy faoliyatni ta’minlash uchun ishlatiladi. Ushbu maqolada yong‘oq mevasining tarkibida uchraydigan bilologik faol moddalar, ularning foydali xususiyatlari va kimyoviy tuzilishi haqida ma’lumotlar keltirilgan.
OLTIN TOMIR VA UNING XALQ TABOBATIDA QO’LLANILISHI
Authors: Asqarov Ibrohimjon Rahmonovich , Razzaqov Nabijon Alijonovich
Published: July 2023

Ushbu maqolada “Oltin tomir” deb nomaladigan dorivor щsimlikning kimyoviy tarkibi, uning biologik faolligi hamda isbotli tabobatda kasalliklarni davolash o‘rinlari haqida. Markaziy nerv sistemasining oziqlanishining buzilishi va shuning oqibatida xotiraning pasayishi hamda asabiylashish kabi xastaliklarda “Oltin tomir” o‘simligidan foydalanish yaxshi samara beradi.
BEL CHURRASI VA GIPERTENZIYANI DAVOLASHDA GIRUDOTERAPIYA VA AKUPUNKTURATERAPIYA (DOCHIM) BIRGALIKDA QO‘LLASH
Authors: Fattaxov Nusratullo Xamidullayevich , Ulmasov Zikirillo Obidovich , Abdulxakimov Arsen Renatovich
Published: July 2023

Ushbu maqolada mualliflar tomonidan churrasi bo‘lgan bemorlarda girudoterapiya va akupunkturning birgalikdagi yondashuvidan foydalanish, og‘riq intensivligining sezilarli darajada pasayishiga olib kelishi, girudoterapiya churra sohasidagi yallig‘lanish va shishni kamaytirishga yordam berishi va akupunktur energiya blokirovkalarini olib tashlashga va qon aylanishini yaxshilashga yordam berishi, kasalliklarni kompleks davolashda girudoterapiya va akupunkturdan foydalanish bo‘yicha yangi tavsiyalar va ko‘rsatmalarni ishlab chiqish, intervertebral churra va gipertenziyani davolashda yangi yondashuv usullari haqida fikr yuritiladi.
YALPIZNING ANTIOKSIDANTLIK FAOLLIGINI ADRENALINNING IN VITRO SHAROITIDA AUTOOKSIDLANISH METODI YORDAMIDA ANIQLASH
Authors: Asqarov Ibrohimjon Rahmonovich , Mamurova Mohlaroy Ma'rufjon qizi
Published: July 2023

Hozirda dunyo miqqiyosida yurak-qon aylanishi kasalliklari bilan aziyat chekayotganlar soni 50-60%ni tashkil etadi. Buning sababi, noto’g’ri ovqatlanish, qonda trombotsitlar va xolesterinning ko’payib ketishidir. Bunda bu kasalliklarni oldini olish yoki bu kasalliklarni olib keladigan sabablarni yo’q qilish kerak bo’ladi. Maqolada yalpiz o’simligi (Mentha piperita L.) o’simligi tarkibiga kiruvchi ayrim biologik faol birikmalar va ularning tibbiyotdagi ahamiyati to’g’risida qisqacha ma’lumotlar keltirilgan.
Locating the Bemba Kinship in 21st Century Zambia: A Historical and Futuristic Perspective
Authors:   Postgraduate Student, School of Graduate Studies, Zambian Open University, Bimba Alice , Mpolomoka Daniel L. ,   School of Education, Humanities and Social Sciences, Unicaf University Zambia, Sampa Rex L. ,   School of Humanities and Social Sciences, Copperbelt University, Nyirenda Obster Gorebrowne ,   School of Education, Department of Secondary Education, Zambian Open University, Chitondo Lufeyo ,   School of Education, Department of Literature and Languages, Rockview University, Zambia, Muyendekwa Limbali ,   School of Humanities and Social Sciences, Literature and Languages Department, University of Zambia, Kangwa Kennedy ,   School of Humanities and Social Sciences, Literature and Languages Department, Kwame Nkrumah University, Chalwe Abigail Nachilima ,   School of Education, Humanities and Social Sciences, Unicaf University Zambia
Published: July 2023

This article emanates from findings of a desktop research conducted to describe the historical and futuristic perspectives of the Bemba kingship. The details of the study were extracted from the data gathered from archives, interviews and literature reviewed on kingship. Findings point to a well-archived, once rock-solid Bemba kingship lineage to a degenerated Bemba kingship one today. Findings have revealed that the causes of the degeneration of the Bemba kingship are in print, electronic and oral tradition domains. Lifestyles interrogated point to a complete breakdown of the extended family system as one of the main reasons of the none-adherence to kingship ties. Other reasons established by the study include dynamics in the political, socio-economic, cultural practices and modernization. The study recommends various familial, community, stakeholder and government initiatives to support and restore the Bemba kingship.
REVISTA LATINOAMERICANA DE CIENCIAS DE LA COMUNICACIÓN
Authors: Da Revista da ALAIC Coordenação Editorial
Published: July 2023

Capa
UMA GENEALOGIA DOS CONCEITOS NA TEORIA DA COMUNICAÇÃO: ESBOÇO DE UM PANORAMA
Authors: Martino Luís Mauro Sá
Published: July 2023

Este texto retoma e desenvolve pesquisas anteriores sobre a genealogia dosconceitos nas Teorias da Comunicação. Foram examinados 43 livros sobre o tema publicados entre 1969 e 2016. A partir desse corpus, identificaram-se doze “Teorias da Comunicação” definidas, estudadas a partir de 133 aportes diferentes por 188 autores. Observou-se a um cânone restrito cercado por uma pletora de teorias. Esses dados são discutidos em três perspectivas: (a) o desenvolvimento histórico do cânone; (b) a apropriação de “teorias” na comunicação”; e (c) as articulações das teorias nas pesquisas contemporâneas.
APONTAMENTOS PARA ESTUDO DOS DISCURSOS SOCIAIS A PARTIR DAS CONTRIBUIÇÕES DA HERMENÊUTICA
Authors: Ferreira Giovandro Marcus Ferreira , Sampaio Claudiane de Oliveira Carvalho
Published: July 2023

Neste artigo, buscamos demonstrar como o círculo hermenêutico, proposto por Paul Ricoeur, suplanta as fronteiras impostas pelo círculo semiológico, ao contemplar os elementos intralinguísticos e extralinguísticos constituintes do discurso, ou seja, as suas condições de produção e reconhecimento. Ricoeur, ao assumir o compromisso de desenvolver uma hermenêutica aplicada, deixou pistas para os estudos discursivos, especialmente no que tange aos discursos sociais como constitutivos de matérias significantes heterogêneas (Verón, 1987, 1998, 2004, 2013). O texto vincula o processo de semiotização global do mundo a conceitos da Análise do Discurso (AD), a fim de construir apontamentos para análise dos discursos sociais.
ARTICULACIONES TRANSMETODOLÓGICAS PARA UNA EPISTEMOLOGÍA LATINOAMERICANA EN COMUNICACIÓN
Authors: Maldonad A. Efendy
Published: July 2023

El artículo trata sobre aspectos del realismo crítico transmetodológico que fecundan la investigación en comunicación, en especial las relaciones epistemológicas entre la dimensión empírica, la dimensión teórica, y la dimensión metodológica en ciencias de la comunicación. Presenta reflexiones críticas a las estrategias teóricas especulativas y al empirismo abstracto. Abre posibilidades de construcción transmetodológica de las problemáticas. Argumenta sobre la necesidad de incorporar al campo científico la diversidad de sabidurías presentes en Nuestra América, como una alternativa transformadora al neocolonialismo académico e investigativo, para eso dialoga con la vertiente Mattelart, como una referencia crítica crucial en el área. Enfatiza aspectos multidimensionales de los procesos de comunicación, que exigen la presencia de estrategias transmetodológicas en el trabajo investigativo para su realización fecunda y transformadora, y apunta tres componentes nutritivos para la vida epistemológica en comunicación en Nuestra América.
LA COMUNICACIÓN DECOLONIAL, PERSPECTIVA IN/SURGENTE
Authors: Villanueva Erick R. Torrico Villanueva Torrico
Published: July 2023

El pensamiento teórico comunicacional es tributario de la epistemología moderna que se desplegó junto a los procesos de conquista y colonización que propulsaron a Europa a “centro” del mundo desde finales del siglo XVI. Las principales corrientes del campo de estudios de la Comunicación privilegiaron el análisis de las mediaciones tecnológicas, sus consecuencias y los contextos político, económico y cultural en que se desenvuelven. La decolonialidad, nueva perspectiva crítica latinoamericana, propone un punto de vista distinto para la comprensión del hecho y la teoría comunicacionales desde la mirada situada de los subalternos y con una proyección utopística. Este artículo es una aproximación a estos planteamientos.
INVESTIGACIÓN ENACTIVA EN COMUNICACIÓN, METODOLOGÍAS PARTICIPATIVAS Y ASUNTOS EPISTEMOLÓGICOS
Authors: Massoni Dra. Sandra Hebe
Published: July 2023

En el contexto actual de valorización de los cruces e integraciones inter y transdisciplinares, este trabajo se propone sistematizar elementos diferenciales de la Investigación Enactiva en Comunicación (IEC) como metodología de investigación participativa utilizada en el despliegue de estrategias de comunicación. Se inscribe en el Proyecto de Investigación PID Nº 231 de la UNR para el desarrollo de un Sistema de Medición Comunicacional –software online– que investiga a la comunicación en organizaciones, proyectos y políticas públicas, considerando su multidimensionalidad y su fluidez.
“EL VIENTO SOPLA POR DONDE QUIERE”
Authors: Cimadevilla Gustavo Cimadevilla
Published: July 2023

Entrevista a heriberto Muraro. intelectual libre de prejuicios, pionero de los estudios de comunicación en américa latina.
MÍDIA E INTEGRAÇÃO DA AMÉRICA LATINA A PARTIR DA PRESENÇA GEOPOLÍTICA DAS EMPRESAS JORNALÍSTICAS
Authors: Bidarra Beatriz Soares , De Camargo Isadora Ortiz , Côrrea Elizabeth Nicolau Saad , De Oliveiraa Lucas Kerr
Published: July 2023

Entender a presença e concentração midiática e seus impactos sobre os processos de circulação comunicacional e integração regional são interesses deste trabalho que, a partir de perspectivas multidisciplinares, relaciona as noções da geopolítica das comunicações e geopolítica das mídias como aportes epistemológicos para tentar compreender a presença e formação de monopólios midiáticos. Busca-se demonstrar como o funcionamento e a estruturação de empresas midiáticas é muito semelhante às lógicas de concentração de capital tanto que é possível inferir a interdependência latino-americana de outros grupos estrangeiros dentro de um ecossistema midiático contemporâneo frente a características de cunhoimperialista, onde se entende que o monopólio de grupos hegemônicos e tradicionais se dissipa por regiões cultural, econômica e politicamente diferentes, de interesses distintos, como acontece na América Latina. Como estudo exploratório de caso, aborda-se o recente crescimento do Grupo PRISA, da Espanha, em países latino-americanos, com forte adesão no Brasil. Com tais premissas, este trabalho quer discutir a influência no processo de integração regional, as problemáticas que permeiam a gestão e soberania regional midiática nesta região do globo.
PROGRAMAS DE POSGRADO DEL DEPARTAMENTO DE ESTUDIOS SOCIOCULTURALES DEL ITESO
Authors: Goribar María Martha Collignon , Navarro Raúl Fuentes , Martínez Carlos Enrique Orozco
Published: July 2023

En este texto se presentan, en sus líneas más generales, los perfiles y la historia particular de los dos programas de posgrado del Departamento de Estudios Socioculturales del ITESO (Universidad Jesuita de Guadalajara): la Maestría en Comunicación de la Ciencia y la Cultura y el Doctorado en Estudios Científico-Sociales, que han alcanzado el máximo nivel de acreditación en el Padrón Nacional de Posgrados de Calidad del CONACYT, y han consolidado un sólido reconocimiento nacional y latinoamericano por sus aportes al estudio interdisciplinario de la comunicación y la formación universitaria en este campo.
REPRESENTAÇÕES DA DEFICIÊNCIA FÍSICA NA TELENOVELA, UMA ANÁLISE INTERDISCIPLINAR
Authors: Betti Juliana Gobbi , Straubhaar Joseph D.
Published: July 2023

O livro discute as representações da deficiência física adquirida, com ênfase nas vivências da intimidade da mulher. Tendo como objeto empírico a telenovela Viver a Vida, cuja narrativa abordou a temática por meio da personagem Luciana, apresenta uma análise interdisciplinar e interseccional que envolve questões como o cuidado, o corpo e a sexualidade. Para isso, utiliza procedimentos metodológicos da Etnografia de tela, fundamentados por um amplo referencial dos estudos nas áreas da Comunicação Social, da Antropologia e dos Disability Studies em sua interface com os Estudos de Gênero.
80 ANOS DAS RÁDIOS NACIONAL E MEC DO RIO DE JANEIRO
Authors: Mustafá Izani
Published: July 2023

A história de 80 anos de existência e a trajetória das duas importantes rádios brasileiras, a Nacional e a MEC do Rio de Janeiro, ambas pertencentes à Empresa Brasil de Comunicação, são analisadas em 14 artigos escritos por pesquisadores e professores do Grupo de Pesquisa Rádio e Mídia Sonora da Intercom – Sociedade Brasileira de Estudos Interdisciplinares de Comunicação. As pesquisas que norteiam a obra 80 anos das rádios Nacional e MEC do Rio de Janeiro perpassam também por aspectos políticos, econômicos, culturais e educativos. O E-book é um trabalho coletivo e está disponível gratuitamente no Portal do Rádio.
MEDIAÇÕES NO FACEBOOK POR JOVENS BRASILEIROS: SEMELHANÇAS E DIFERENÇAS DE DOIS GRUPOS DISTINTOS.
Authors: Kohls Chirlei Diana , De Quadro Claudia Irene
Published: July 2023

A mediação e a circulação de conteúdos nas redes sociais digitais são revisitadas para a análise de publicações no Facebook de jovens brasileiros que vivenciam culturas e contextos distintos. Por meio da etnografia virtual e da entrevista em profundidade, foram pesquisados dois grupos de jovens de Curitiba, capital do Paraná, sul do Brasil: o de conflito com a lei e o de evangélicos. O primeiro grupo faz parte dos internos da Casa de Semiliberdade e o segundo de estudiosos do evangelho da Comunidade Alcance. Neste artigo, mostramos que as mediações do Facebook surgem a partir das vivências dos sujeitos e do contexto no qual estão inseridos. PALAVRAS-CHAVE: MEDIAÇÃO; CIRCULAÇÃO DE CONTEÚDOS; FACEBOOK; JOVENS.
AS MEDIAÇÕES COMUNICATIVAS DA CULTURA E SUA APLICABILIDADE NA ESCOLA E COM AS JUVENTUDES
Authors: Melo Patricia Goedert , Ribeiro Regiane Regina
Published: July 2023

O artigo propõe a aplicabilidade teórico-metodológica do mapa das mediações de Martín-Barbero (2003) no espaço da escola e com as juventudes do Colégio Estadual do Paraná (Curitiba-PR). A metodologia articula observação participante, entrevista, grupos de discussão e análise no Facebook. A diversidade dos modos de ser jovem entrelaçadas ao cotidiano do colégio constituem práticas sociais vinculadas ao eixo comunicação-cultura-política. O estudo aponta que, para que essas práticas ganhem expressividade, os alunos as comunicam por meios e plataformas que carregam em sua materialidade e significações as mediações comunicativas da cultura. PALAVRAS-CHAVE: COMUNICAÇÃO; MEDIAÇÕES; MARTÍN-BARBERO; JUVENTUDE.