bluuebunny/crossref_metadata_2025 huggingface dataset:
0-10 Yaş Grubu Çocuklara Yönelik Çocuk Şiir Kitaplarına İlişkin Fiziksel ve İçerik Özelliklerin İncelenmesi
Authors: BAĞÇELİ KAHRAMAN Pınar , İBŞİROĞLU BAYRAM Elif
Published: June 2022

Amaç: Bu çalışmanın amacı, Nilüfer Belediyesi Şiir Kütüphanesi ve Misi Çocuk Kütüphanesinde en çok ödünç alınan çocuk şiir kitaplarının fiziksel, iç yapı ve resimleme özelliklerinin incelenerek, kitapların çocuk edebiyatı ilkelerine uygunluğunun belirlenmesidir. Yöntem: Şiir Kütüphanesi ve Misi Çocuk Kütüphanesi dermesinde bulunan ve ödünç alınan 98 kitap bu araştırma kapsamında değerlendirilmiştir. Verilerin doküman incelemesi yoluyla toplandığı çalışmada nitel araştırma yöntemlerinden durum çalışması uygulanmıştır. Bulgular: Çalışmadan elde edilen bulgulara göre; kitapların %95,9’u orta büyüklük, %61,2’si dikiş ciltleme, %95,9’u saman kağıt ve %40,8’i 71 ve daha fazla sayfa fiziksel özelliklerine sahiptir. Sayfa düzeni ve dilbilgisi özelliklerinin incelendiği aşamada; kitapların %42,9’u tek satır aralıkla, %56,1’i 12 yazı puntosu ile %91, 8’i sola yaslı olarak yazılmış ve %55,1’inde noktalama işaretleri kullanılmıştır. Kitapların resimlendirme özellikleri açısından; %88,8’inde kapak resmi içerikle uyumlu, %73,5’inde resimlerde duygu ifadelerine yer verildiği, %44,9’unda resimlerin renkli olduğu, %74,5’inde her sayfada resim olmadığı ve %60,2’sinde aynı sayfadaki resimlerle metinlerin birbirini tamamladığı tespit edilmiştir. Kitapların iç yapı özelliklerine göre; %34,7’sinde ‘değerler’ teması işlenmiş ve %64,3’ünün pastoral türde yazıldığı belirlenmiştir. Sonuç: Nilüfer Belediyesi Şiir Kütüphanesi ve Misi Çocuk Kütüphanesinden ödünç alınan çocuk şiir kitaplarının çoğunluğunda yazar tanıtımının olduğu, en fazla ödünç alınan çocuk şiir kitabının Fazıl Hüsnü Dağlarca’ya, ikinci olarak ise Mavisel Yener ve Aytül Akal’a ait olduğu saptanmıştır. Kitapların çoğunluğunda resimleyen vardır ve en fazla resimleyen Mustafa Delioğlu’dur. Çocuk şiir kitaplarını en çok yayımlayan yayınevi Yapı Kredi, ikinci olarak ise Can Çocuk olmuştur. Çocuk şiir kitaplarının basım yıllarının en çok 2012 ve 2008 yıllarına ait kitaplar olduğu ve kitapların çoğunluğunun birinci basım olduğu belirlenmiştir. Çocuk şiir kitaplarının çoğunluğunda yaş bilgisi bulunmamaktadır. Özgünlük: Çocuk kitaplarının fiziksel, içerik ve resimlendirme unsurlarını inceleyen çalışmalar yapılmaktadır. Ancak şiir kitapları ile ilgili çalışmalara literatürde fazla rastlanmamıştır. Çalışma, çocuk şiir kitaplarının fiziksel ve içerik özelliklerini incelemesi açısından özgündür. Çalışmanın, çocuk şiir kitaplarına ve kütüphane koleksiyonlarındaki yerine dikkat çekeceği düşünülmektedir.
Predictors of early discharge after transcatheter aortic valve implantation: insight from the CoreValve ClinicalService
Authors: Angelillis Marco , Costa Giulia , Giannini Cristina , Fiorina Claudia , Branca Luca , Tamburino Corrado , Barbanti Marco , Gorla Riccardo , Casenghi Matteo , Bruschi Giuseppe , Merlanti Bruno , Montorfano Matteo , Ferri Luca A. , Poli Arnaldo , Regazzoli Damiano , De Felice Francesco , Maffeo Diego , Trani Carlo , Iadanza Alessandro , Petronio Anna S.
Published: June 2022

Aims

The aim of this study was to minimize the procedure, and reduce the length of hospital stay (LoS) is the future objective for transcatheter aortic valve replacement (TAVI).

Aims of the study are to identify procedural and electrocardiographical predictors of fast-track discharge in patients who underwent TAVI.

Methods

Patients treated with TAVI included in the One Hospital ClinicalService project were categorized according to the LoS. ‘Fast-Track’ population, with a postprocedural LoS less than or equal to 3 days, was compared with the ‘Slow-Track’ population with a postprocedural LoS greater than 3 days.

Results

One thousand five hundred and one patients were collected. Despite single baseline characteristics being almost similar between the two groups, Slow-Track group showed a higher surgical risk (P < 0.001). Patients in the Slow-Track group were more frequently treated with general anaesthesia (P = 0.002) and less frequently predilated (P < 0.001) and received a lower amount of contrast media. No difference between Slow-Track and Fast-Track patients was observed at 30 days in death and in cardiovascular rehospitalization.

In the multivariable analysis, STS score of at least 4% [odds ratio (OR): 1.64; P = 0.01], general anaesthesia (OR: 2.80; P = 0.03), predilation (OR: 0.45; P < 001), NYHA 3–4 at baseline (OR: 1.65; P = 0.01), AVB I/LBBB/RBBB onset (OR: 2.41; P < 0.001) and in-hospital new PM (OR: 2.63; P < 0.001) were independently associated with a higher probability of Slow-Track.

Conclusion

Fast-Track patients were safely discharged home showing no difference in clinical outcomes after discharge up to 30 days compared with the Slow-Track group. The STS score, general anaesthesia, NYHA 3--4 at baseline, in-hospital onset of conduction disturbances and new PM implantation after TAVI turned out to be predictors of Slow-Track.
Coding theory based on balancing polynomials
Authors: Prasad Bandhu
Published: June 2022

In this paper, we introduce aQ2n(x)Q_2^n\left( x \right)matrix, whose elements are balancing polynomials, and develop a new coding and decoding method following from theQ2n(x)Q_2^n\left( x \right)matrix. We establish the relations between the code matrix elements, error detection and correction for this coding theory.
Work-related musculoskeletal disorders among physiotherapists and physiotherapy students in Croatia and their association with physical fitness
Authors: Tišlar Marina Horvat , Starc Gregor , Kukec Andreja
Published: June 2022

Introduction

Among physiotherapists, work-related musculoskeletal disorders (WMSDs) are the most common health problem. This study aimed to provide evidence for planning evidence-based health promotion programmes for ensuring and maintaining adequate physical fitness (PF) to decrease WMSDs among physiotherapists which would have started already during the study.

Methods

A cross-sectional study involved the participation of a total of 100 physiotherapy students and 62 physiotherapists. Observed variables were prevalence of WMSDs in the last 12 months, lasting >3 days during physiotherapeutic activities and five PF components: body composition, cardiorespiratory and muscle endurance, muscle strength, and flexibility. A chi-square test and binary logistic regression were used as the main analytical methods.

Results

Prevalence of WMSDs in physiotherapists was 63.9% (the most common locations: lower back, shoulders, neck), while in physiotherapy students it was 46.5% (the most common locations: lower back, neck, upper back) (p=0.031). Among the PF components, the results showed statistically significantly worse flexibility among students compared to physiotherapists (about two thirds of students had poor or very poor results of flexibility testing) (p=0.002) in comparison to physiotherapists. A statistically significant positive association between WMSDs and PF was observed only between knee pain and poor cardiorespiratory endurance (OR=4.03 with 95% CI 1.12-14.58; p=0.033).

Conclusion

The study showed poor flexibility among students indicating that it is necessary to direct them to perform activities that will increase the extensibility of muscles. The awareness of this problem should be increased. A specific role should be played by staff involved in clinical practice.
KOMUNIKASI VISUAL MELALUI FOTO PRODUK UNTUK MENINGKATKAN NILAI JUAL PRODUK UMKM
Authors: Sari Wulan Purnama , Irena Lydia
Published: June 2022

The condition of the COVID-19 pandemic has caused many changes that must be made in various aspects of life, including the economic sector and especially MSME business actors. In order to survive, MSME business actors must make changes, business activities that were initially carried out offline must now also be carried out online. This change requires adjustments, especially regarding the visuals of the product, therefore it is necessary to carry out PKM activities with the aim of assisting MSME players in taking product photos as part of visual communication to increase product selling value and promotional means. PKM activities are carried out with MSME partners engaged in the culinary field under the brand name Mie Ayam Marah. The PKM method is carried out through training and assistance in the implementation of product photos. The results of the product photos are used as a means of E-Marketing by utilizing social media and online delivery applications. Visual appearance is an important part of E-Marketing which aims to provide information and attract consumer attention to products. As a recommendation, the team gave suggestions to carry out further PKM activities regarding the preparation of a menu book that combines visual communication and copy writing. As well as PKM activities to provide education for partners related to E-markating and social media.ABSTRAKKondisi pandemi COVID-19 menyebabkan banyak perubahan yang harus dilakukan dalam berbagai aspek kehidupan, termasuk didalamnya sektor ekonomi dan khususnya pelaku usaha UMKM. Agar dapat tetap bertahan pelaku usaha UMKM harus melakukan perubahan, kegiatan usaha yang awalnya dilakukan secara offline sekarang harus dilakukan juga secara online. Perubahan ini membutuhkan penyesuaian terutama terkait visual dari produk, oleh karenanya perlu dilakukan kegiatan PKM dengan tujuan untuk membantu pelaku UMKM dalam hal melakukan foto produk sebagai bagian dari komunikasi visual untuk meningkatkan nilai jual produk dan sarana promosi. Kegiatan PKM dilakukan dengan mitra UMKM yang bergerak di bidang kuliner dengan nama merek Mie Ayam Marah. Metode PKM dilakukan melalui pelatihan dan pendampingan pelaksanaan foto produk. Hasil dari foto produk tersebut digunakan sebagai sarana E-Marketing dengan memanfaatkan media sosial dan aplikasi pesan antar online. Tampilan visual merupakan bagian penting dalam E-Marketing yang berujuan untuk memberikan informasi dan menarik perhatian konsumen atas produk. Sebagai rekomendasi, tim memberikan saran untuk melakukan kegiatan PKM lanjutan mengenai penyusunan buku menu yang menggabungkan komunikasi visual dan copy writing. Serta kegiatan PKM untuk memberikan edukasi bagi mitra terkait E-marketing dan media sosial.³
Facilitators and Barriers to Clinical Pathway Uptake and Utilization Among Primary Care Providers in Saskatchewan - A Qualitative Study
Authors: Groot Gary , Ollegasagrem Shaliny , Khakpour Mahasti , Panahi Adel , Goodridge Donna , Lloyd Joshua , Kinsman Leigh , Rotter Thomas , Tymchak Zane , Carr Tracey
Published: June 2022

Purpose: Clinical Pathways (CPWs) are multidisciplinary, evidence-based, complex interventions designed to standardize patient care. In Saskatchewan, development, implementation and evaluation of the seven provincial CPWs (Hip & Knee, Spine, Pelvic Floor, Prostate Assessment, Fertility Care, Lower Extremity Wound Care and Acute Stroke) present significant challenges, leading to low utilization. This study aimed to identify facilitators and barriers to CPW utilization by Saskatchewan family physicians.
Methods: To identify the facilitators and barriers to CPWs, a qualitative interpretive approach consisted of eight one-on-one key informant interviews and five focus groups held with 30 family physicians in two larger urban and two smaller Saskatchewan cities. Inductive, thematic analysis of the interviews based on the Theoretical Domain Framework for behavioral changes was used to identify facilitators and barriers to CPW uptake and utilization.
Results: Fifty-one themes were mapped under 14 Theoretical Domain Framework domains. Major barriers included the following: system-level (knowledge and communication, social/professional identity, family physician engagement and education); objective clarification (goals, belief about consequences of implementing CPW); and technical and resource related (administrative, access to local specialists, enforcement and incentives). The most prominent barrier was lack of systematic CPW promotion and inconsistencies in communication between the following: organization-to-practitioner; organization-to-organization; and practitioner-to-practitioner. Facilitators who mitigated barriers were need for optimized and integrated information technology services (i.e., Electronic Medical Records) and optimism towards CPW usage and patient outcomes.
Conclusions: This exploratory study identified specific improvements and recommendations required to promote uptake of CPWs based on perceived facilitators and barriers.
Cellulose based smart sensors
Authors:   Department of Polymer and Surface Coating Technology, Institute of Chemical Technology, Mumbai, India, Jagtiani Ekta
Published: June 2022

Cellulose fibres, cellulose nanofibers, cellulose nanocrystals and cellulose derivatives are all examples of cellulose-based materialsthat display superior characteristics with a number of desirable properties, including biodegradability, sustainability, biocompatibility, thermal properties , optical transparency, flexibility, high mechanical strength, high porosity,hydrophilicity, a large surface area and broad chemical modification capabilities. "Smart" materials based on cellulose created by the chemical changes and physical incorporation/blending techniques offer numerous advantages, most notably their intelligent responses to environmental stimuli. Conductive networks are formed in cellulose-based composite materials by combining or coating conductive materials with the cellulose components or by directly carbonising the cellulose materials. Numerous nanopaper-based optical sensing platforms are explained and how they can be tailored to exhibit plasmonic or photoluminescent features suitable for sensing applications using nanomaterials or as biomaterials. The responsiveness of these "smart" materials to pH, temperature, light, electricity, magnetic fields and mechanical forces, among other parameters, is also reviewed, as were their applications as drug delivery systems, hydrogels, electronic active papers, sensors, shape memory materials, smart membranes, etc.
Flow simulation over semicircular labyrinth weir using ANSYS -fluent
Authors: Sheikh Suleimany Jehan M. Fattah , Aurahman Tara H. , Mamand Bruska S.
Published: June 2022

This study investigates the flow of a semicircular labyrinth weir in an open channel by experimental and numerical methods. The experiments were carried out in a channel with a length of 3.5m and width of 0.25m and 0.3m height under five different flow rates. Five different discharge values over the weir were used. In each experiment, flow rate and flow depth were measured. Numerical processes solved using mathematical equations of fluid flow through the computational fluid dynamics using ANSYS FLUENT code. The Volume of Fluid (VOF) model is designed for the case of water and air-immiscible faces. Standard k-epsilon turbulence models were tested. A mass balance result indicates that the maximum error between the inlet and outlet discharges of the main channel does not exceed 12% for discharge values of 4.31 L/sec.  The results indicate that by increasing the discharge flow rate, the percentage of error decreased to 0.4% for discharge, 14.6 L/sec. The findings show that the free water surface profile obtained from the numerical model compared to experimental values complies well with the experimental results.
Genomic Surveillance of SARS-CoV-2: Study of Cases Intradomiciliary Infection in Brazilian Amazonia
Authors:   Laboratório de Virologia Molecular, Fundação Oswaldo Cruz Rondônia, FIOCRUZ/RO, Porto Velho, RO, Brazil, KS Teixeira , G Sgorlon ,   Laboratório de Virologia Molecular, Fundação Oswaldo Cruz Rondônia, FIOCRUZ/RO, Porto Velho, RO, Brazil, AM Passos-Silva ,   Laboratório de Virologia Molecular, Fundação Oswaldo Cruz Rondônia, FIOCRUZ/RO, Porto Velho, RO, Brazil, TP Roca ,   Laboratório de Virologia Molecular, Fundação Oswaldo Cruz Rondônia, FIOCRUZ/RO, Porto Velho, RO, Brazil, JAS Queiroz ,   Laboratório de Virologia Molecular, Fundação Oswaldo Cruz Rondônia, FIOCRUZ/RO, Porto Velho, RO, Brazil, NW Gasparelo ,   Laboratório de Virologia Molecular, Fundação Oswaldo Cruz Rondônia, FIOCRUZ/RO, Porto Velho, RO, Brazil, AAS Oliveira ,   Laboratório de Virologia Molecular, Fundação Oswaldo Cruz Rondônia, FIOCRUZ/RO, Porto Velho, RO, Brazil, PRF Souza ,   Laboratório de Virologia Molecular, Fundação Oswaldo Cruz Rondônia, FIOCRUZ/RO, Porto Velho, RO, Brazil, FS Batista ,   Coordenação Estadual do Covid-19, AGEVISA/RO, Porto Velho, RO, Brazil, JMV Salcedo ,   Laboratório de Virologia Molecular, Fundação Oswaldo Cruz Rondônia, FIOCRUZ/RO, Porto Velho, RO, Brazil, DS Vieira ,   Laboratório de Virologia Molecular, Fundação Oswaldo Cruz Rondônia, FIOCRUZ/RO, Porto Velho, RO, Brazil
Published: June 2022

Studies have shown that the family environment is very favorable for SARSCOV- 2 transmission, making family groups susceptible to intra-household infection because they maintain direct contact with an infected person. We screened a cohort of 416 individuals who tested positive for SARS-CoV-2 from June to October 2021 for intradomiciliary infection. Twenty-two families with an average of 2 to 4 members were located in 12 municipalities in the state of Rondônia. Nasopharyngeal samples were collected, extracted using the QIAamp viral RNA mini kit and genomic sequencing was performed using samples with ct<25 by Illumina platform, the sequences were analyzed for phylogeny, mutations, and lineages. Among the samples analyzed 72.72% matched for VOC Delta and 27.27% for Gamma variant. The median viral load for both variants was 6.95. The main symptoms presented were cough, headache, and fever. No hospitalizations or deaths were reported. We observed that among the positive individuals, 24% were immunized with the 1st and 2nd dose, 40% were partially immunized, and 36% were not immunized. For each strain, subvariants were identified, being P.1.4 and P.1.14 for the Gamma variant and AY.43, AY.99.2 and AY.122 for Delta. The mutations mostly behaved as lineage-defining, with only eight families showing point mutations. In conclusion, it was observed that despite the low adherence to immunization, household cases were equally expressed in viral characteristics and in the low rate of hospital evolution for COVID-19, and this may be a factor associated with the permanence of infection in an isolated family environment.
Critical analysis of radical scavenging properties of atorvastatin in methanol recently estimated via density functional theory
Authors: Baldea Ioan
Published: June 2022

In this communication we draw attention on serious flaws that plague recently reported antioxidant properties of atorvastatin (ATV) in methanol. First and foremost, we emphasize that the O-H bond dissociation energies (BDE) of about 400\,kcal/mol previously reported are completely wrong. Further, we present results refuting the previous claim that the proton affinity (PA) of ATV is smaller than that of the ascorbic acid. That unfounded claim relies on incorrect data for PA's ascorbic acid (which we correct here) circulated in the literature. Further, we correct the values of the chemical reactivity indices (e.g., chemical hardness, electrophilicity index, electroaccepting and electrodonating powers), which were inadequately estimated previously via Kohn-Sham HOMO and LUMO energies. Finally, our updated values for \ce{O-H} bond dissociation enthalpy (BDE = 91.4\,kcal/mol) and electron transfer enthalpy (ETE = 105.7\,kcal/mol) tentatively suggest that direct H-atom transfer (HAT) and sequential proton loss electron transfer (SPLET) may coexist.
Best Practice DFT Protocols for Basic Molecular Computational Chemistry
Authors: Bursch Markus , Mewes Jan-Michael , Hansen Andreas , Grimme Stefan
Published: June 2022

Nowadays, many chemical investigations are supported by routine calculations of molecular structures, reaction energies, barrier heights, and spectroscopic properties. The lion's share of these quantum-chemical calculations applies density functional theory (DFT) evaluated in atomic-orbital basis sets. This work provides best-practice guidance on the numerous methodological and technical aspects of DFT calculations in three parts: Firstly, we set the stage and introduce a step-by-step decision tree to choose a computational protocol that models the experiment as closely as possible. Secondly, we present a recommendation matrix to guide the choice of functional and basis set depending on the task at hand. A particular focus is on achieving an optimal balance between accuracy, robustness, and efficiency through multi-level approaches. Finally, we discuss selected representative examples to illustrate the recommended protocols and the effect of methodological choices.
'I get by with a little help from my friends': The role of stromal cells in the breast cancer chemoresistance mechanism
Authors:   , Abolins-Thompson Helena
Published: June 2022

Breast cancer is the most common cancer that affects women worldwide, and in New Zealand accounts for 1/3 of new cancer cases. The tumour microenvironment (TME) has an important role in how breast cancer cells respond to chemotherapeutic stress. Mesenchymal stromal cells (MStCs), a component of the TME, have been shown to function in the development of breast cancer cell chemoresistance, promoting survival and more aggressive cancer cell phenotypes. The effect of co-culture on the 4T1 murine breast cancer cell response to chemotherapy has been explored with DNA-damaging therapies but was yet to be explored against other chemotherapeutic mechanisms.

Fluorescent-4T1 cells were co-cultured with compact bone-derived MStCs and treated with chemotherapies of differing modalities. Flow cytometry, microscopy and gene expression assays were used to assess the effect of co-culture on the 4T1 response to treatment with clinically relevant chemotherapy drugs. Fluorescent-4T1s had altered morphology, disrupted cell cycles, and decreased viability in response to drug treatment. MStCs had low positive expression of classical stromal markers and had reduced effects of chemotherapy compared to 4T1s. Co-culture with MStCs decreased the effect of drug on 4T1 viability, morphology and cell cycle progression. Increased contact between 4T1s and MStCs resulted in enhanced survival of 4T1 cells under chemotherapeutic stress.

These results indicated that drug efficacy is decreased when cancer cells are in co-culture with supporting cells of the TME, independent of the modality of chemotherapeutic stress. This emphasises the importance of the TME to the cancer cell stress response and begins to delve into potential mechanisms for this enhanced interaction. Future research should investigate candidates for inhibiting this interaction between stromal and cancer cells.
Impact of Transformational Leadership on Project Success: The Moderating Role of Emotional Intelligence of Leaders
Authors: Fayyaz Noreen , Gul Warda , Masood Khansa , Saeed Iqra
Published: June 2022

Purpose:This study examined the impact of transformational leadership on project success with the moderating role of emotional intelligence.

Design/Methodology/Approach:The study was conducted on NGOs providing healthcare services in Lahore, Pakistan. This study was quantitative in nature.  Data was gathered from 260 respondents through standardized questionnaire working on healthcare projects of Lahore.  SPSS 22 was applied for data analysis

Findings:The findings of this study showed the insignificant effect of transformational leadership on project success. However, a very strong impact of moderator i-e emotional intelligence was observed   among the relationship of transformational leadership and project success. The theoretical and practical implications of study are substantial addition for the future researchers in the domain of project management.

Implications/Originality/Value:Theoretically, this study demonstrates that the association between TL and PS with influence of the Emotional Intelligence has direct and significant. As a result, it supports the literature’s recommendation to evaluate the relationship between Transformational Leadership Style and PS with the moderator i.e. emotional intelligence.

The findings suggest that Pakistani healthcare NGOs enterprises must seek for emotionally intelligent transformational leaders as well as proficiency in basic managing abilities while hiring. Furthermore, existing employees must be teaching to improve their Emotional Intelligence by enrolling in professional training.
Electroanalytic properties of unmodified and modified solid contact potentiometric β-lactam sensors in aqueous and biological media
Authors: Kulapina E. G. , Mursalov Ruslan K. , Kulapina O. I. , Ankina V. D.
Published: June 2022

Results of a comparative study of the electroanalytic properties of solid contact sensors (tubular and planar) in cefuroxime (Cefur), cefotaxime (Ceftx), cefixim (Cefix), and amoxicillin (Amox) solutions are presented. Tetraalkylammonium associates — tetradecylammonium (TDA) and dimethyldistearylammonium (DMDSA) — with complex compounds silver (I) — β-lactam [Ag(β-lac)2] TAA; ZnO modifiers, polyaniline, and polyaniline nanotubes are used as electrode active components (EAC). The studied sensors based on [Ag(Cefur)2] TDA and [Ag(Amox)2] DMDSA in solutions of cefotaxime, cefuroxime, cefixime, and amoxicillin are characterized by a short response time: for tubular 20 – 25 sec (unmodified), 12 – 17 sec (modified); for planar – 20 – 25 sec (unmodified), 10 – 15 sec (modified). Modifiers stabilize electrode potential and perform a function of a mediator of electron transfer, which leads to improvement of electroanalytic characteristics of sensors. The linear range of electrode functions in antibiotic solutions is 1 × 10–4 – 1 × 10–2 M, the detection limit ranges between 2.5 × 10–5 – 8.9 × 10–5 M for unmodified and 5.6 × 10–6 – 7.5 × 10–5 M for modified sensors, and 4.2 × 10–5 – 7.2 × 10–5 M for planar sensors. The potential drift is 8 – 12 mV/day for unmodified and 5 – 7 mV/day for modified planar sensors; service life is 1.5 – 2 months. The advantage of planar sensors is the possibility of using them in microassay detection, which is relevant in the analysis of biological media. Application of solid-contact sensors for determination of the antibiotics under study in model aqueous solutions, medicinal preparations, oral fluid, blood serum in various infectious diseases is demonstrated.
Study of radar absorbing characteristics of polymer composites with ferrite fillers
Authors: Kostishin V. G. , Shakirzyanov R. I. , Isaev Igor M. , Salogub Dmitry V.
Published: June 2022

The search for effective radio-absorbing materials is an urgent task in solving the problems of electromagnetic compatibility, electromagnetic pollution, as well as stealth and stealth technologies. We present the results of studying the electrophysical and radio-absorbing characteristics of ferrite-polymer composites depending on the structure and magnetic properties of the ferrite filler, as well as the dielectric properties of the polymer matrix. The radio absorbing characteristics of composites F-42/Mn-Zn-ferrite, F-42/Ni-Zn-ferrite, F-42/yttrium iron garnet, F-42/BaFe12O19, F2M/LiMnZn-spinel, PS525/Mn-Zn -ferrite, PVA/Mn-Zn ferrite, and PVA/Ni-Zn ferrite have been studied. Experimental data on the reflection coefficient, determined on a metal plate in a frequency range of 0.1 – 7 GHz showed that spinel ferrites and composites containing them are effective radio absorbing materials. Analysis of the spectra of complex dielectric and magnetic permeability revealed that composites with spinel ferrites and yttrium iron garnet are characterized by a dispersion of the magnetic permeability, which arises as a result of resonance processes of the motion of domain boundaries and natural ferromagnetic resonance. Moreover, the electrical properties of ferrites can affect the high-frequency spectra of the permittivity and permeability. It is shown that the use of electroactive polymers as matrices makes it possible to increase dielectric losses in the high-frequency range and obtain the maximum attenuation of electromagnetic radiation within 25 – 40 dB with a width of 10 dB up to 2.5 GHz in 2 – 7 GHz range. The results obtained can be used in further study of the functional properties of radio-absorbing materials in the high-frequency range.
Study of the effect of matrix components of natural mineral water on the determination of dissolved forms of silicon by high-resolution electrothermal atomic absorption spectrometry with a continuous spectrum source
Authors: Shtin T. N. , Gurvich V. B. , Galasheva O. E. , Neudachina L. K. , Shtin S. A.
Published: June 2022

The influence of the mineral composition of water on the results of silicon determination by high-resolution atomic absorption spectrometry with a continuous spectrum source (HR-CS-ETAAS) and electrothermal atomization technique using a contrAA 700 spectrometer has been studied. The study was conducted using samples of natural water from different regions of the Russian Federation and model solutions. A low degree of silicon atomization was recorded when analyzing samples with a complex matrix against the background of a strong absorption signal of matrix components. The reason for the non-selective absorption of the sample matrix by chemical compounds has been demonstrated using a water sample with the most complex composition and a total hardness of about 2000 °dH. The effect of soluble salts of Ca (II) and Mg (II) in the presence of macrocomponents — alkali metal ions K (I) and Na(I) — on the determination of silicon in water has been proved. It is shown that at the values of the total stiffness less than 15 °dH there is no dependence of the analytical signal on the content of matrix components. An assumption is made about the strong influence of calcium compounds on the determination of the analyte due to the formation of a carbide coating on the surface of a graphite furnace, the appearance of a «memory effect» and an increase in the background signal during subsequent atomization cycles. The best results of the silicon determination were obtained with tungsten, iron, magnesium, and palladium present as chemical modifiers. A method of diluting the sample solution was used to reduce the level of background absorption during electrothermal atomization of mineral water. Conditions for eliminating the influence of matrix components for real samples of mineral water and calibration solutions are proposed. A method for determination of the dissolved forms of silicon in water samples with a complex matrix has been developed. The correctness of the results of silicon determination in the samples of natural underground water in the case of a strong matrix effect was confirmed by an independent method of analysis. The results of the study reveal the entirely new prospects of using the method of high-resolution electrothermal atomic absorption spectrometry with a continuous spectrum source for the determination of silicon in natural water.
The effect of pressure changes during simulated diving on the shear bond strength of orthodontic brackets
Authors:   Department of Conservative Dentistry and Endodontics, M.G.V.’s K.B.H. Dental College and Hospital, Nashik, India, Gulve Meenal N , Gulve Nitin D ,   Department of Orthodontics and Dentofacial Orthopedics, M.G.V.’s K.B.H. Dental College and Hospital, Nashik, India
Published: June 2022

Introduction: This study investigated the effect of pressure variations to which divers are subjected on shear bond strength of orthodontic brackets bonded to teeth with resin modified glass ionomer cement (RMGIC) or composite resin. Methods: Eighty extracted premolars were randomly divided into two groups. Group 1: orthodontic brackets were bonded with RMGIC. Group 2: orthodontic brackets were bonded with composite resin. Each group was further divided into two subgroups. Subgroup A: The samples were kept at sea level pressure (101 kPa). Subgroup B: The samples were pressurised once from 101 kPa to 405 kPa for five minutes, then depressurised to 101 kPa. Shear bond strength was then measured. Results: Shear bond strength of brackets bonded with RMGIC in the simulated diving group was significantly less than that of the sea level pressure group (P = 0.019), while no significant difference was found between the simulated diving group and sea level pressure group for brackets bonded with resin cement (P = 0.935). At sea level pressure, there was no significant difference between shear bond strength of brackets bonded with RMGIC and composite resin (P = 0.83). In simulated diving conditions, there was a statistically significant difference between shear bond strength of brackets bonded with the RMGIC and composite (P = 0.009). Conclusions: Pressure changes during scuba diving may have an adverse effect on the retention of brackets bonded with RMGIC. Using composite resin for bonding brackets appears to be good strategy for patients such as divers who will be exposed to pressurised environments.
Analisis Keabsahan Online Dispute Resolution Arbitrase dalam Pelaksanaannya di Indonesia
Authors: Yuliani Anggi Ari , Hamzah Devi Siti
Published: June 2022

Berkembangnya dunia bisnis di Indonesia, baik yang dilakukan perorangan ataupun antar subjek hukum, dimana dalam dunia bisnis terdapat perjanjian antara kedua pihak, sehingga tidak menutup kemungkinan antara kedua pihak terjadi sengketa, dimana kedua pihak ingin menyelesaikan sengketa secara cepat, murah, mudah dan sesuai dengan aturan hukum yang berlaku. Dengan meningkatnya penggunaan internet membuat meningkatnya sengketa yang terjadi terutama pada dunia bisnis, dimana sengketa bisnis merupakan salah satu permasalahan yang dapat diselesaikan melalui arbitrase karena dinilai memilik banyak keuntungan salah satunya menghindari biaya yang besar dalam penyelesaian sengketa, mengingat hubungan bisnis bukan hanya terjadi antar kota namun dapat terjadi antar negara dimana kedua pihak memiliki jarak yang sangat jauh untuk menyelesaian sengketa yang terjadi. Penggunaan Alternatif penyelesaian sengketa melalui di Indonesia tidak asing dilakukan, namun arbitase yang digunakan merupakan arbitrase tradisional dimana metode penyelesaiannya diajukan secara tertulis oleh para pihak dan diselesaikan oleh pihak ketiga. Dengan meningkatnya kegiatan e-commerce melalui internet, yang pastinya akan menimbulkan sengketa, mengingat jangkauan internet seluruh Indonesia, maka para pihak yang bersengketa membutuhkan penyelesaian sengketa yang lebih cepat, murah dan efektif daripada melalui arbitrase tradisional, yaitu melalui suatu penyelesaian yang dikenal dengan Online Dispute Resolution (ODR), namun yang harus diperhatikan dalam penyelesaian sengketa melalu arbitrase online ini yaitu mengenai keabsahan putusan arbitrase secara online mengingat penyelesaian sengketa melalui ODR khususnya arbitrase online masih belum populer di Indonesia.
Perbandingan Penyelesaian Sengketa Lingkungan Hidup melalui Mekanisme Gugatan Warga Negara (Citizen Lawsuit) di Indonesia dan Amerika Serikat
Authors: Nurmedina Listyalaras
Published: June 2022

Citizen lawsuit merupakan gugatan yang diajukan oleh warga negara terhadap penyelenggara negara yang menimbulkan kelalaian sehingga menyebabkan kerugian. Kelalaian tersebut merupakan Perbuatan Melawan Hukum (onrechtmatige overhead daad), dimana negara diperintahkan untuk melakukan perbaikan atas kinerjanya dan mengeluarkan suatu kebijakan yang mengatur umum (regeling). Hal tersebut bertujuan agar kelalaian yang sebelumnya terjadi tidak terulang lagi pada masa yang akan datang. Pada dasarnya, gugatan citizen lawsuit hampir mirip dengan gugatan class action karena memiliki kesamaan yaitu gugatannya diajukan dengan melibatkan kepentingan sejumlah besar orang yang diwakilkan oleh satu orang atau lebih. Perbedaannya adalah gugatan citizen lawsuit diajukan oleh warga negara untuk kepentingan umum sedangkan dalam gugatan class action, gugatannya diajukan oleh wakil dari sebuah kelompok untuk kepentingan tertentu. Citizen lawsuit terbentuk di negara-negara dengan sistem hukum common law yang pada awalnya diajukan terhadap permasalahan yang berkaitan dengan lingkungan hidup.  Sedangkan citizen lawsuit di Indonesia sebenarnya tidak diatur dalam perundang-undangan. Namun pada tahun 2003, Pengadilan Negeri Jakarta Pusat telah menerima bentuk gugatan citizen lawsuit, sehingga walaupun gugatan citizen lawsuit ini tidak diatur dalam perundang-undangan, namun telah diakui dalam praktiknya. Pada artikel ini, penulis menjelaskan contoh-contoh citizen lawsuit yang pernah terjadi di Indonesia dan Amerika Serikat. Selain itu, akan dijelaskan juga mekanisme gugatan citizen lawsuit sehingga dalam penulisan artikel ini ditemukan beberapa persamaan dan perbedaan dalam praktik citizen lawsuit yang diterapkan di Indonesia dan Amerika Serikat.
Perlindungan Hak Kekayaan Intelektual Dalam Kontrak Bisnis Elektronik Atas Pemegang Hak Merek Dagang
Authors: Sheilindry Icha
Published: June 2022

Marketplace merupakan salah satu jenis perdagangan elektronik yang banyak digunakan pada saat ini, salah satu kebijakan marketplace yaitu melakukan perjanjian dengan pihak penjual dengan tujuan salah satunya sebagai bentuk perlindungan terhadap Hak Kekayaan Intelektual namun dalam prakteknya pelanggaran seperti penjualan produk palsu masih sering ditemukan dalam platform marketplace yang menimbulkan kerugian terhadap pemegang hak merek. Tujuan penelitian ini untuk menganalisis penerapan hukum terhadap pelanggaran merek dalam transaksi perdagangan elektronik di Indonesia, untuk menganalisis kekuatan kontrak bisnis elektronik yang dibuat oleh marketplace sebagai bentuk perlindungan merek, dan untuk mengevaluasi bagaimana seharusnya pengaturan terkait peredaran barang di perdagangan elektronik untuk menghindari pelanggaran merek. Metode penelitian dari naskah ini secara normatif, penelitian normatif adalah penelitian hukum kepustakaan dengan menggunakan empat macam pendekatan, yaitu pendekatan Undang-Undang, pendekatan konseptual, pendekatan cyber law, dan pendekatan perbandingan. Hasil penelitian ini menegaskan bahwa pelanggaran merek yang terjadi dalam perdagangan elektronik menjadi tanggung jawab marketplace sepenuhnya namun bentuk tanggung jawab tersebut hanya berupa penghapusan laman toko online yang melakukan pelanggaran. Adapun kekuatan kontrak bisnis elektronik yang dibuat oleh marketplace akan memiliki kekuatan hukum yang mengikat apabila telah memenuhi syarat kesepakatan, kecakapan, objek yang spesifik dan sebab yang halal. Pengaturan yang seharusnya terkait peredaran barang pada perdagangan elektronik kedepannya yaitu dengan membuat suatu kebijakan yang memfokuskan pada lembaga pengawasan barang sehingga dapat menjadi perlindungan merek dalam perdagangan elektronik. Kesimpulan dari naskah ini bahwa dalam perdagangan elektronik perlindungan terhadap Hak Kekayaan Intelektual merek sangat perlu dilindungi namun di Indonesia belum ada pengaturan yang memfokuskan mengenai peredaran barang di perdagangan elektronik.
Hukum Determinan Terhadap Ekonomi atau Ekonomi Determinan Terhadap Hukum
Authors: Atmaja Bima Kumara Dwi
Published: June 2022

Hukum dan ekonomi sangat mempengaruhi satu sama lain. Peristiwa hukum dapat mempengaruhi ekonomi sebaliknya peristiwa ekonomi dapat mempengaruhi hukum. Hubungan hukum dengan ekonomi diharapkan akan diperoleh pengetahuan bagaimana seharusnya hukum menempatkan dirinya terhadap perekonomian yakni apakah hukum mengawal (guarding), mengikuti (following) ataukah sebagai yang memimpin atau mempelopori (leading) perekonomian suatu negara. Metode penelitian yang digunakan dalam penelitian ini yaitu penelitian hukum normatif melalui pendekatan konseptual dan pendekatan sejarah. Hasil dari penelitian ini menemukan bahwa baik hukum maupun ekonomi saling berkaitan satu sama lain, determinasinya bergantung pada asumsi dan konsep yang digunakan. Apabila merujuk pada pendapat van Kan, dapat dikatakan bahwa hukum merupakan produk ekonomi karena menurut van Kan hukum selalu tertinggal dari peristiwanya “het recht hinkt achter de feiten aan”. Sebaliknya, apabila merujuk pada teori Roscoe Pound yang mengatakan bahwa law is tool of social engineering yang berarti hukum menjadi alat perubahan masyarakat maka dapat dikatakan ekonomi adalah produk hukum, hal mana hukum telah memerankan peranannya sebagai pemandu arah berkembangnya masyarakat. Hal terpenting adalah hukum harus mampu mencegah kerugian masyarakat sehingga apabila hukum selalu tertinggal dengan peristiwanya berarti selalu terjadi economic cost dan social cost terlebih dahulu. Mengingat hal tersebut maka hukum seharusnya memimpin di depan agar masyarakat terhindar dari economic cost dan social cost tersebut.
Analisis Syarat Sah Pencatatan Perkawinan Menurut Penghayat Kepercayaan
Authors: Rais Natasya Fila
Published: June 2022

Tulisan ini menganalisis syarat sah pencatatan perkawinan menurut penghayat kepercayaan dalam Putusan Nomor 20/Pdt.P/2020/PN Sdw. Tulisan ini membahas mengenai syarat sah perkawinan menurut penghayat kepercayaan pencatatan perkawinan menurut penghayat kepercayaan apabila perkawinan tersebut dicatat secara terlambat. Selain itu, guna menambah pemahaman terkait analisis yang dibahas dalam tulisan ini, Penulis juga melakukan tinjauan pustaka atas materi-materi penunjang analisis putusan, antara lain terkait dengan syarat sah perkawinan, pencatatan perkawinan dan pendaftaran perkawinan terlambat, serta perkawinan menurut penghayat kepercayaan yang tinjauan pustakanya dilakukan secara umum dan spesifik mengenai syarat sah dan pencatatan perkawinan. Metode penelitian yang digunakan dalam tulisan ini adalah Yuridis Normatif. Penulis melakukan pendekatan studi pustaka, dimana sumber-sumber yang digunakan berasal dari data sekunder, antara lain buku, jurnal, peraturan perundang-undangan dan bahan-bahan lainnya. Jenis data yang digunakan untuk tulisan ini merupakan data sekunder yang didapatkan dari bahan-bahan hukum primer, sekunder dan tersier. Tujuan dari tulisan ini adalah untuk menambah khazanah pembahasan terkait Hukum Perdata di bidang Hukum Perkawinan dan menambah wawasan dan diskusi mengenai syarat perkawinan, pencatatan perkawinan dan perkawinan menurut penghayat kepercayaan. Dengan melihat bahwa pengakuan perkawinan menurut penghayat kepercayaan bersifat baru di Indonesia, diharapkan pembahasan ini dapat membuka diskursus-diskursus lebih baru terkait hal tersebut dan juga dapat membuka kesempatan adanya penelitian lebih lanjut mengenai permasalahan-permasalahan hukum yang dihadapi terkait perkawinan menurut penghayat kepercayaan.
Investigation of Honeycomb Sandwich Panel Structure using Aluminum Alloy (AL6XN) Material under Blast Loading
Authors: Ansori Dany Taufiq Alim , Prabowo Aditya Rio , Muttaqie Teguh , Muhayat Nurul , Laksono Fajar Budi , Tjahjana D. D. Dwi Pria , Prasetyo Ari , Kuswardi Yemi
Published: June 2022

In this study, we focused on the large inelastic behavior of a sandwich panel made of two solid plates as a stiffener and a honeycomb core shell subjected to blast load. The loading scheme was carried out using an explosive charge bullet mounted at a standoff distance of 100 mm with three mass variations of trinitrotoluene: 1, 2, and 3 kg TNT. The numerical simulations performed using ABAQUS/CAE were validated with the experimental results of a previous study. The geometrical effects of the sandwich panel on intact and damaged models were also numerically investigated. The panel was designed using a square and hexagonal honeycomb core. The effect of honeycomb core height was also observed by modeling the core using three height variations: 31, 51, and 71 mm. The results showed that the hexagonal core was more resistant to blast loads than the square design. The core height parameter determines the energy absorption based on these results. The structural strength is also affected by the damage. The findings of this study can be used to improve structural designs that utilize sandwich panels to withstand blast loads. Doi: 10.28991/CEJ-2022-08-05-014 Full Text: PDF
Influence of Natural Zeolite and Mineral additive on Bacterial Self-healing Concrete: A Review
Authors: Akhtar J. N. , Khan Rizwan Ahmad , Khan Rehan Ahmad , Akhtar Mohammad Nadeem , Nejem Jamal K.
Published: June 2022

With time, the development of micro-cracks in concrete is a frequently reported problem in the structures due to the ingress of harmful substances, leading to the degradation of its quality and strength, which ultimately declines the construction. The present work is a review paper based on enhancing the self-healing property of concrete by inducing different bacteria alone or incorporating different mineral additives. It has been seen that various rehabilitated methodologies are in queue to surmount concrete’s weaknesses and to increase its strength and durability. The latest methodology includes using non-pathogenic microbes in concrete as Microbial induced Calcium Carbonate Precipitation (MICCP). The property of precipitating calcium carbonate (CaCO3) crystals by their metabolic activities helps repair the cracks in harsh conditions and improve their strength. Ureolytic bacteria like Bacillus pasteurii/Sporosarcina pasteurii, Bacillus subtilis, Bacillus megaterium, etc., have a specific property by which they can excite urea when integrated with a calcium source and help in sealing the cracks by CaCO3 precipitation. Different studies have observed that specimens having a bacterial concentration of 105-107 cells/ml with Natural Zeolite (NZ) replacement (10%) represents better interaction of the microstructure of concrete because of the formation of calcium silicate hydrate (CSH) gel. Further, the reduction in CH bond with reduced pore space has also been observed. NZ alone enhances micro-structural property, but it shows CaCo3 precipitation and more densification of microstructure under bacterial combination. XRD also confirms an increase in the calcite composition when the bacterial concentration of 105-107 cells/ml is used. The overall properties of standard and high-strength bacterial concrete (105-107 cells/ml) with 10% Natural Zeolite replacement can provide a better option for the future of sustained and strong concrete. Doi: 10.28991/CEJ-2022-08-05-015 Full Text: PDF
Flow Characteristics through Granular Soil Influenced by Saline Water Intrusion: A Laboratory Investigation
Authors: Basack Sudip , Goswami Ghritartha , Khabbaz Hadi , Karakouzian Moses
Published: June 2022

The coastal geoenvironment initiates saline water intrusion into the freshwater aquifers, producing a geohydraulic problem. Such intrusion not only contaminates the fresh groundwater resources, making them unsuitable for human use, but also alters the hydraulic conductivity of the aquifer materials, which affects the coastal groundwater flow, influencing the water resources planning and management. Past investigations reveal that the groundwater flow can be linear or nonlinear depending upon the hydraulic gradient. Thus, the coefficients of nonlinear hydraulic conductivities are affected by saltwater intrusion. The present study focuses on an in-depth laboratory investigation into the influence of saltwater submergence on the nonlinear flow characteristics through granular soil. The fine sand samples have been submerged under saline water of specified concentrations for a specific duration, and the alteration in their nonlinear geohydraulic properties has been studied. It is observed that the flow characteristics through fine sand are significantly affected by the period of submergence and saline concentration. Appropriate analyses of the test results are performed to interpret the experimental data, and relevant conclusions are drawn therefrom. The novelty of this study is an in-depth analysis of nonlinear flow characterization affected by saline water intrusion. Doi: 10.28991/CEJ-2022-08-05-02 Full Text: PDF