bluuebunny/crossref_metadata_2025 huggingface dataset:
Adsorpsi Minyak dan Timbal (Pb) pada Air Limbah Bengkel Mobil Menggunakan Bentonit dan Cangkang Telur Ayam (Gallus domesticus) sebagai Adsorben
Authors: Pratiwi Aldila Tirta , Widiatmono Bambang Rahadi , Wirosoedarmo Ruslan
Published: December 2023

Minyak yang terkandung dalam oli yang digunakan termasuk komponen organik yang bersifat tetap dan sukar diuraikan bakteri, sedangkan timbal (Pb) memiliki sifat tidak dapat terurai secara hayati dan konsentrasinya tinggi terakumulasi di lingkungan. Pada penelitian dilakukan pengolahan air limbah bengkel dengan cara adsorpsi menggunakan adsorben bentonit dan cangkang telur ayam (Gallus domesticus) yang memiliki sifat ramah lingkungan dan keberadaannya selalu ada sepanjang tahun. Proses adsorpsi yaitu memanfaatkan kemampuan zat padat untuk menjerap suatu bahan atau zat pada permukaannya. Penelitian ini menggunakan variasi jenis dan dosis adsorben dengan lama waktu pengadukan selama 60 menit dengan kecepatan 150 rpm. Jenis adsorben yang digunakan yaitu clay jenis bentonit yang telah diaktivasi dengan larutan asam HCl 1 M dan cangkang telur ayam (Gallus domesticus). Faktor yang digunakan merupakan dosis bentonit dan cangkang telur ayam (Gallus domesticus) yang masing-masing terdiri dari 4 (empat) perlakuan yaitu 0 gram, 5 gram, 10 gram dan 15 gram. Penelitian bertujuan untuk mengetahui, menganalisis dan mengevaluasi efisiensi penurunan kadar minyak dan timbal (Pb). Adsorben bentonit dan cangkang telur ayam (Gallus domesticus) memberikan pengaruh terhadap efisiensi penurunan minyak secara signifikan namun tidak pada efisiensi penurunan timbal (Pb). Perlakuan adsorben bentonit sebesar 15 gram dengan cangkang telur ayam sebesar 15 gram (B3C3) menunjukkan kadar minyak paling sedikit yaitu 3,00 mg/L dengan efisiensi penurunan minyak paling besar yaitu 88,22%. Perlakuan adsorben bentonit sebesar 15 gram dengan cangkang telur ayam sebesar 10 gram (B3C2) menunjukkan timbal (Pb) paling sedikit yaitu 1,66 mg/L dengan efisiensi penurunan timbal (Pb) paling besar yaitu 52,25%.
Application of Compost and Manure in the Biopore Infiltration Hole to Improve Saturated Hydraulic Conductivity (Shc) of Soil in the Coffee Root Zone
Authors: Fitria Lailatul , Wicaksono Kurniawan Sigit , Soemarno Soemarno
Published: December 2023

Coffee is one of the primary sources of foreign exchange in Indonesia. The factors causing fluctuations in coffee production are climate change, high soil density, less organic material, which causes coffee roots to be unable to absorb water and nutrients optimally. The soil water movement measured by saturated hydraulic conductivity which represents the soil ability to transmit water. The application of compost and manure in the biopore infiltration hole (BIH) is an effective technology in reducing surface-runoff and organic wastes management, as well as soil characteristics improvement. This study was conducted using a Randomized Block Design with four treatments and four replications. The treatments were P1 as control (without BIH), P2 (BIH without compost), P3 (BIH+compost), and P4 (BIH+goat manure). Data analysis was carried out using the Ftest (ANOVA), and continued with Least Significant Difference (LSD) test at 5% level, when there was a significant difference. Observations of soil characteristics were carried out every two months in three depth of root zone, 0-20 cm, 20-40 cm, and 40-60 cm. While the observation of the Auger hole at a depth of 0-30 cm and 0-60 cm. Research variables include soil texture, soil bulk density, Saturated Hydraulic Conductivity of soil by Auger-Hole, Soil Organic Matter (SOC), pH, Cation Exchange Capasity (CEC), and coffee yield. Results showed that treatment of BIH+goat manure gave the best results, measured by improving soil hydraulic conductivity up to 40%. The highest coffee yield was found in the BIH+manure treatment to 3.29 t ha-1.
Tumbuhan Air Invasif Berpotensi sebagai Fitoremediator Bahan Organik Total (BOT) di Waduk Darma Kuningan
Authors: Nurdin Nurdin , Ismail Agus Yadi , Kosasih Dede , Deni Deni , Herlina Nina
Published: December 2023

ABSTRAKTumbuhan air merupakan bagian penting dari ekosistem perairan yang terbentuk dari adapatasi morfologi dan fisiologi sehingga tercipta pola hidup yang muncul di permukaan air, terendam dan mengapung bebas. Selain berfungsi secara ekologis organisme ini mampu menjadi fitoremediator untuk menjaga kualitas perairan. Tujuan khusus dari penelitian ini adalah untuk menginventarisasi tumbuhan air yang berpotensi sebagai fitoremediator di Waduk Darma Kuningan. Hasil penelitian ini dapat dipergunakan untuk pengelolaan waduk yang berkelanjutan, sehingga pemanfaatan waduk dapat sesuai dengan fungsinya. Penelitian ini juga terkait dengan komitmen United Nations Environment Programme (UNEP) terhadap keberlanjutan lingkungan hidup secara komprehensif. Tumbuhan air yang dimanfaatakan sebagai fitoremediator harus memiliki tingkat pertumbuhan yang tinggi, investasi bniomassa yang besar dan mampu beradaftasi dengan kondisi lingkungan yang esktrim. Eceng gondok (Eichhornia crasspes) merupakan tumbuhan air yang paling tepat dipergunakan sebagai fitoremediator di perairan Waduk Darma.Kata kunci: tumbuhan air, invasif,  fitoremedias, waduk
Peran Stakeholder dalam Kajian Lingkungan Hidup Strategis Rencana Detail Tata Ruang Kawasan Perkotaan Manokwari
Authors: Kocu Yullyus , Bawole Roni , Pattiasina Thomas , Hematang Francine
Published: December 2023

Dokumen Kajian Lingkungan Hidup Strategis (KLHS) Rencana Detil Tata Ruang (RDTR) Kawasan Perkotaan Manokwari ditujukan untuk mengendalikan aktifitas pembangunan di kawasan perkotaan agar serasi, terpadu, dan dapat meningkatkan kesejahteraan masyarakat. Adanya peran serta stakeholder dalam penyusunan KLHS RDTR adalah salah satu hal yang dapat menjadi penentu keberhasilan dalam penegakan aturan mengenai tata ruang. Tujuan penelitian ini adalah untuk mengkaji peran (pengaruh dan kepentingan) stakeholder dalam penyusunan dokumen KLHS RDTR Kawasan Perkotaan Manokwari. Pengumpulan data dilakukan dengan cara Porposive sampling. Analisis yang digunakan adalah stakeholder analysis (SA) mengunakan Matriks Brysson untuk mengidentifikasi dan mengkategorikan stakeholder. Hasil identifikasi menunjukan terdapat 18 pemangku kepentingan yang terlibat dalam penyusunan KLHS RDTR Kawasan Perkotaan Manokwari dengan perannya masing-masing. Di antara para pemangku kepentingan/stakeholder tersebut yang termasuk dalam stakeholder kunci yang memiliki pengaruh kuat dan peranan penting dalam penyusunan dokumen KLHS RDTR  yaitu terdapat dua dua organisasi perangkat daerah Provinsi Papua Barat yaitu Dinas Pekerjaan Umum dan Perumahan Rakyat (PUPR) Provinsi Papua Barat, serta Kesatuan Pengelolaan Hutan Lindung (KPHL) unit XII, Organisasi perangkat daerah yang berasal dari kabupaten manokwari diantaranya Dinas Pekerjaan Umum dan Penataan Ruang, Badan Perencanaan Pembangunan Daerah, Dinas Lingkungan Hidup dan Pertanahan serta Dinas Perumahan dan permukiman masyarakat. Meskipun pemerintah telah mengacu pada peraturan perundang-undangan, namun secara pelaksanaannya penyusunan KLHS RDTR masih belum maksimal dalam melibatkan peran serta Stakeholder. Diperlukan kajian cepat terkait peran stakeholder sebelum dilakukan KLHS sehingga peran semua stakeholder bisa lebih maksimal. Selain itu perlu adanya regulasi atau protap sebagai alur komunikasi sehingga penyusunan dokumen perencanaan dapat terintegrasi dan interaksi antar-pemangku kepentingan menjadi lebih baik.
Jaringan Pengelolaan Sampah Rumah Tangga sebagai Bentuk Transisi Ekonomi Sirkular di Kota Surabaya
Authors: Larasati Aida Fitri , Santoso Eko Budi
Published: December 2023

Waste management in Surabaya City is part of a circular economy, various types of waste are processed into something that has a higher selling value and can drive the community's economy, both at the producer and consumer levels. This study explores how the flow of waste management takes place, both informally and formally. Through qualitative analysis in the form of social networks. The analysis visualizes the pattern of relations between actors and measures the centrality of each key actor. This analysis also helps researchers reveal that the criteria for social networks in waste management in the study area have the characteristics of transactional relationships and collaborative relationships with different patterns. In addition, the relational network looks different for the types of organic and inorganic waste, the highest complexity is found in the transactional network relationships for inorganic waste. Key actors, such as waste banks and scrap dealers, can connect massive collection points and waste management. In addition, researchers found that various parties have contributed significantly to realizing the circular economy transition. In collaboration relations, the Environmental Service has the main role as a regulator bridging the private sector, waste banks, and Non-Governmental Organizations (NGOs). The Main Waste Bank and the Nol Sampah Community have a role in encouraging changes in the community's paradigm to sort and manage waste with a different approach. In addition, the MSMEs and the informal sector have a significant role in transactional relations, forced by economic factors that can increase the recycling business field. The study findings also answer that household waste has been processed using the 3R concept (Reduce, Reuse, Recycle), part of the circular economy process. The potential for a circular economy transition can also be increased through various social approaches to increase cooperation and create more up-to-date innovations in waste management.
Penilaian Status dan Risiko Ekologi Cemaran Logam Berat di Lahan Pertanian Kota Malang, Provinsi Jawa Timur
Authors: Handayani Cicik Oktasari , Sukarjo Sukarjo , Zu'amah Hidayatuz , Dewi Triyani
Published: December 2023

Akumulasi logam berat pada tanah memberikan dampak yang besar bagi lingkungan seperti dapat mengganggu keseimbangan ekologi, mengurangi kesuburan tanah, mengubah kualitas fisikokimia tanah dan sangat berbahaya bagi kesehatan manusia. Penelitian ini bertujuan untuk menganalisis status logam berat pada tanah dan kemungkinan terjadinya dampak ekologi yang tidak diinginkan pada lingkungan akibat adanya cemaran logam berat pada lahan pertanian Kapaten Malang. Penelitian ini menggunakan metode survey pengambilan contoh tanah dengan jumlah titik lokasi pengambilan contoh tanah sebanyak 123 titik. Analisis yang dilakukan antara lain analisis spasial, geoaccumulation index (I-Geo), polltuion index (PI), the Nemerow integrated pollution index (NIPI), dan potential ecological risk index (RI). Hasil dari penelitian ini menunjukkan bahwa logam Pb, Cd, Co, Ni, Cr, Cu, Mn, Zn dan As terdeteksi hampir di semua lokasi pengambilan contoh tanah pada lahan pertanian Kota Malang. Hasil analisis geoaccumulation index (I-geo), pollution index (PI), the Nemerow integrated pollution index (NIPI)  dan potential ecological risk index (RI) menunjukkan hasil yang selaras bahwa logam Cd merupakan sumber utama pencemaran logam berat di lahan pertanian Kota Malang dengan nilai pencemaran yang cukup tinggi sehingga juga memiliki dampak ekologis yang tinggi.
Potential Mechanism of Platelet-rich Plasma Treatment on Testicular Problems Related to Diabetes Mellitus
Authors: Hermilasari Rista Dwi , Rizal Dicky Moch , Wirohadidjojo Yohanes Widodo
Published: December 2023

Diabetes mellitus is a condition of continuously increased blood glucose levels that causes hyperglycemia. This condition can result in disorders of various organs including testicular problems. The use of platelet-rich plasma (PRP) which is contained in several growth factors shows its potential in overcoming testicular problems. This literature review study was conducted to identify the potential of PRP in overcoming various testicular problems due to diabetic conditions.
Complete Denture – Border Molding Technique Using a Laboratory Condensation Silicone Putty: Review
Authors: Melo Neto Clóvis Lamartine de Moraes , dos Santos Daniela Micheline , Goiato Marcelo Coelho
Published: December 2023

During the fabrication of a complete denture, functional impression is taken. Literature studies show that polydimethylsiloxane (condensation silicone) has not been reported by United States dental schools to perform border molding. Thus, the purpose of this article is to review the functional impression technique when border molding is performed with a laboratory condensation silicone putty.
Removable Partial Denture – Functional Impression Techniques: Review
Authors: Melo Neto Clóvis Lamartine de Moraes , Turcio Karina Helga , dos Santos Daniela Micheline , Goiato Marcelo Coelho
Published: December 2023

The objective of this article is to concisely review the main clinical techniques used to make the functional impression to manufacture a removable partial denture. Through this review, the dentist can develop his clinical knowledge.
Polypharmacy and Drug Interactions in the COVID-19 Pandemic
Authors: Barcia Ricardo Enrique , Keller Guillermo Alberto , Bello Natalia , Azzato Francisco , Diez Roberto Alejandro , Giunti Guido
Published: December 2023

The COVID-19 pandemic generated a great impact on health systems. We compared evolution, polypharmacy, and potential drug-drug interactions (P-DDIs) in COVID-19 and non-COVID-19 hospitalizations during first wave of pandemic. Prescriptions for hospitalized patients ≥ 18 years (COVID-19 and non-COVID-19 rooms) between April and September 2020 were included. The computerized medical decision support system SIMDA and the physician order entry system Hdc.DrApp.la were used. Patients in COVID-19 rooms were divided into detectable and non-detectable, according to real-time reverse transcription polymerase chain reaction (RT-PCR). Number of drugs, prescribed on day 1, after day 1, and total; polypharmacy, excessive polypharmacy, and P-DDIs were compared. 1,623 admissions were evaluated: 881 COVID-19, 538 detectable and 343 non-detectable, and 742 non-COVID-19. Mortality was 15% in COVID-19 and 13% in non-COVID-19 (RR [non-COVID-19 vs. COVID-19]: 0.84 [95% CI] [0.66–1.07]). In COVID-19, mortality was 19% in detectable and 9% in non-detectable (RR: 2.07 [1.42–3.00]). Average number of drugs was 4.54/patient (SD ± 3.06) in COVID-19 and 5.92/patient (±3.24) in non-COVID-19 (p<0.001) on day 1 and 5.57/patient (±3.93) in COVID-19 and 9.17/patient (±5.27) in non-COVID-19 (p<0.001) throughout the hospitalization. 45% received polypharmacy in COVID-19 and 62% in non-COVID-19 (RR: 1.38 [1.25–1.51]) and excessive polypharmacy 7% in COVID-19 and 14% in non-COVID-19 (RR: 2.09 [1.54–2.83]). The frequency of total P-DDIs was 0.31/patient (±0.67) in COVID-19 and 0.40/patient (±0.94) in non-COVID-19 (p=0.022). Hospitalizations in the COVID-19 setting are associated with less use of drugs, less polypharmacy and less P-DDIs. Detectable patients had higher mortality.
Association of COVID-19 Infection and Acute Mesenteric Ischemia
Authors: Kostovski Ognen , Lazarova Irena , Popchanovski Bojan , Kostovska Irena
Published: December 2023

COVID-19 is an infectious disease that is considered to be a thromboinflammatory disorder. The study was aimed to determine the prevalence of COVID-19 in patients with acute mesenteric ischemia (AMI) and the outcomes of surgical treatment in relation to COVID-19. A total of 140 patients were included in this multicentric study divided into two groups: the test group (n=65) consisted of cases of AMI detected during the COVID-19 pandemic and the control group (n=65) consisted of cases of AMI detected before the pandemic. Test group patients were classified as COVID-positive (COVID+), or COVID-negative (COVID–) if they tested positive, respectively negative test for COVID-19 on admission. Primary outcomes were: prevalence of COVID-19 infection among test group patients, association between COVID-19 infection and inoperability, and between COVID-19 and treatment outcome. Secondary outcomes were association between each blood parameter and inoperability and treatment outcome. There were no statistically significant differences between inoperability and COVID-19 positivity on admission, overall mortality between the control group and the test group and overall mortality between COVID+ and COVID– patients, as well as among those patients that have been surgically treated (p>0.05). There were statistically significant differences between serum amylase levels (p=0.034), and serum LDH levels (p=0.0382) and inoperability, between serum LDH levels and postoperative mortality (p=0.0151), and overall mortality (p=0.00163). High level of LDH and serum pancreatic amylase are associated with a higher rate of inoperability and a higher postoperative and overall mortality rate. COVID-19 does not seem to independently influence the treatment outcome of AMI.
CT measurement of damage characteristics of meso-structure of freeze-thawed granite in cold regions and preliminary exploration of its mechanical behavior during a single freeze-thaw process
Authors: Zhang Chunyang , Tan Tao , Ke Bo , Ma Bingde , Dai Bibo , Fang Zhiheng , Zhao Ercheng
Published: December 2023

The freeze-thaw (FT) damage characteristics of granite after different FT cycles were studied using computed tomography (CT) images. The three-dimensional (3D) volume numbers in the image were extracted to obtain the 3D pore structure of representative volume elements (RVEs) of granite under different FT cycles. The CT images of granite after 80 FT cycles were selected to draw reference lines for quantitative analysis of the distribution of meso-cracks in granite after FT cycles. Subsequently, a finite element model was established to explore the mechanical properties of minerals in granite during a single FT process. The results show that the FT damage inside the granite exhibits fracture characteristics, and the number of internal cracks, cracks area, and voxel porosity increase with the increase of FT cycles. After 80 FT cycles, the distribution of meso-cracks on the cross-section of granite exhibits significant anisotropy, and the distribution density and variation coefficient of meso-cracks vary with the dip direction angle of the reference line. The maximum principal stress and strain in the finite element model are negatively related to temperature. The maximum principal stress and strain of biotite minerals are consistently higher than those of feldspar and mica during FT cycles. The results can provide a reference for exploring the internal mechanism of the weakening of mechanical properties of granite microstructure caused by FT damage in cold regions.
Enhancing the therapeutic efficacy of Krestin–chitosan nanocomplex for cancer medication via activation of the mitochondrial intrinsic pathway
Authors: Albalawi Karma , Panneerselvam Chellasamy , Moawadh Mamdoh S. , Alalawy Adel I. , Omran Awatif M. E. , Abdelaziz Mahmoud A. , Mohammedsaleh Zuhair M. , Al-Aoh Hatem A. , Mustafa Syed Khalid , Keshk Ali A. , Al-Morwani Majed M. , Alessa Ali Hamzah , Al-Anazi Menier , Khateeb Sahar
Published: December 2023

Surgery, chemotherapy, and radiation therapy are all forms of cancer treatment, as well as more recent methods including interventional radiology and immunotherapy. In this study, we synthesize a novel chitosan (CH) nanocomplex (NC)-based polysaccharide Krestin (PSK) for drug delivery. This technique was used to develop PSK@CH@NC. According to the study, PSK@CH@NC had a particle size of around 500 nm, slight polydispersity as observed under a scanning electron microscope, and a strong positive surface charge of 18 mV. Investigation into the in vitro growth inhibition of the MCF-7 cell line after treatment with CH, PSK, and PSK@CH@NC was followed by morphological changes. Compared to other treatment groups, PSK@CH@NC therapy dramatically reduced the fraction of apoptotic cells, cancer cell survival, and proliferation. Fluorescence analysis was used to examine how PSK@CH@NC affected the distribution of cell cycle phases. This study also shows that a promising foundation for creating cancer nanomedicine can be established by employing new polysaccharides.
Effect of atmospheric pressure cold plasma on the physiochemical characteristics and Fourier transform infrared spectroscopy analysis of hazelnuts and peanuts
Authors: Medvecká Veronika , Mošovská Silvia , Mikulajová Anna , Zahoranová Anna
Published: December 2023

Consuming nuts in their raw form becomes a significant concern due to the presence of microbial contamination. The efficacy of low-temperature plasma (LTP) for inactivating fungi on nuts is already known. However, it is also necessary to examine the impact of this technique on physiochemical parameters to demonstrate the safety of LTP, especially when considering its practical application. The aim of the study is the investigation of the effect of LTP on physiochemical parameters, and the possible impact on the ageing of selected nut samples. LTP was generated in ambient air using diffuse coplanar surface barrier discharge (DCSBD). Based on FTIR analysis, no significant changes were detected on the surface of peanuts. In hazelnuts, moderate changes were recorded mainly in regions belonging to lipids. Changes inside the samples were not detected. A slight increase of polyphenol, flavonoid content and antioxidant activity was observed.
Metaphorical images in the mirror: How Romanian literary translators see themselves and their translations
Authors: Pungă Loredana
Published: December 2023

This study focuses on how 15 Romanian literary translators metaphorically conceptualize their own role and importance and the role and significance of their translations. The aim of the analysis is to see what kind of source text–target text and author–translator relationships the conceptual metaphors suggested reflect, to zoom in on the status of the translator and of the translated text that may be inferred based on these conceptualizations and, finally, to see whether they support the traditional source vs target-orientation dichotomy in translation or call for a more hermeneutic-oriented approach.
Green synthesis of copper nanoparticles from agro-waste garlic husk
Authors: Senthilkumar Anupama , Muthuswamy Razia , Uma Maheshwari Nallal  , Ramaiyan Sankar , Kannan Prabha , Muthupandi Sankar , Lakshminarayanan Srimathi Priya , Sambasivam Sangaraju , Ayyar Manikandan
Published: December 2023

The objective of this study was to test the antibacterial activity of copper nanoparticles (Cu NPs) against bacterial pathogens by green synthesizing them from aqueous extracts of garlic husk. The synthesized Cu NPs were examined by UV-visible (UV-VIS) spectroscopy at (200–400 nm), Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD) analysis, transmission electron microscopy (TEM), and zeta potential analysis. The findings supported the capping, reduction, and production of Cu NPs with an average crystalline size of 14 nm in the husk extract. The minimum inhibitory concentration technique (MIC test) was used to measure the antibacterial activity against Gram-positive (Escherichia coli, Vibrio cholera) and Gram-negative (Bacillus cereus, Staphylococcus aureus) microorganisms. The lowest concentration required for inhibiting the growth of the bacterial strains ranged from 34.7 to 43.04 μg/ml. The above findings suggest that greenly synthesized Cu NPs made from garlic agro-waste may have potential uses in the realm of nanomedicine as an antibacterial drug in the treatment and prevention of bacterial infections due to their superior antibacterial activity.
Introduction: On Anne Carson’s Euripides
Authors: Jansen Laura
Published: December 2023

This essay serves as an introduction to Anne Carson’s Euripides. It discusses Carson’s ongoing engagement with the tragedian, from Grief Lessons to her latest experimental H of H Playbook and The Trojan Women: A Comic, drawing attention to Carson’s cross-pollinating approach to Euripidean tragedy and antiquity more broadly, as well as the characteristic blending of academic and artistic styles that inform her translation poetics. The introduction includes details of the themes explored in the special issue, together with summaries of the eight ‘takes’ that make up the collection.
Disjunctive Soundscapes in Anne Carson’s The Trojan Women and H of H
Authors: Nooter Sarah
Published: December 2023

This essay examines two distinct modes of sonic disjunction in Rosanna Bruno and Anne Carson’s The Trojan Women: A Comic and Carson’s H of H Playbook. The Trojan Women shows how noticing sounds that are dislocated from expectations exposes hard truths about reality. H of H interrogates our “regular” mode of hearing other people and implies that there is a gap in how we can know others and know ourselves. Thus, though both are graphic texts, their power and effect are nonetheless garnered also through the sounds they describe and conjure in the minds of their readers.
Prerequisites for the formation of gold spreads on the Ukrainian Shield and on its southern framing
Authors: LOMAKIN I.E. , SARVIROV Ye.A. , KOCHELAB V.V.
Published: December 2023

The presence of numerous native gold deposits of the Ukrainian Crystalline Shield (UCS), as well as the spread of placer gold manifestations, determines the high probability of the formation of precious metal placers with industrial parameters here. The main factors and geological conditions that contribute to the formation of gold placers are manifested in the UCS. An important reason for the failures of previous geological works is the outdated scientific and methodological platform, which involved the search for typical gold-bearing deposits with metal of gravity classes of size. The possibility of significant movement of placer gold in the clayey water flow and the formation of long-distance placers was not taken into account. The traditional slack method used in the study did not make it possible to determine the actual gold content when particles with a size smaller than 0.25 mm predominate in the sample, which is precisely the particle size of the primary sources of the UCS. The applied means of research could not be effective in the absence of the necessary analytical base for determining the gold content, modern methods of studying the geological structure and tectonics of the territories. The negative results did not provide any real grounds for further specialized large-scale research and prospecting for placer gold. Today, it is becoming obvious that placer gold of small and fine grades can easily move over considerable distances in the water flow and form accumulations not only in boulder-pebble material, but also in pelite sediments. As a result of repeated changes in the tectonic plan of block movements, gold-bearing accumulations could be eroded and redeposited in secondary reservoirs. In this aspect, neotectonic studies (using materials from space surveys) become the main predictive and prospecting method for identifying promising areas of placer gold concentration in the region. Field work should be carried out using drilling and modern methods of laboratory analysis of samples for gold. The results of many years of research give hope for the discovery of real placer gold deposits in the Northern Black Sea region in the near future.
Virtuális érmodell vizsgálata laparoszkópos jobb hemicolectomia és komplett mesocolicus excisio esetében
Authors: Sztipits Tamás , Barabás J. Imre , Szalontai László , Dubóczki Zsolt , Budai Barna , Geletey Olivér Zsolt , Wettstein Dániel , Mersich Tamás
Published: December 2023

Bevezetés és célkitűzés: A komplett mesocolicus excisio (CME) és
centrális érlekötés egyre elfogadottabb laparoszkópos jobb hemicolectomia
esetén, azonban a mesenterialis erek variabilitása sebésztechnikai kihívást
jelenthet, ezzel befolyásolva a sebészi beavatkozás sikerességét. Célunk
CT–angiográfia alapján készített – arteria (a.) és vena (v.) mesenterica
superior ágrendszert ábrázoló – virtuális 3D modell pre- és intraoperatív
alkalmazhatóságának vizsgálata. Közleményünkben a 3D technológia
alkalmazhatóságát mutatjuk be a konvencionális módszerekkel térben nehezen
értelmezhető műtéti területen. Módszer: A kutatás felépítése
prospektív, randomizált. A vizsgálatra 40, az AJCC szerinti I–III. stádiumú,
jobb oldali vastagbéltumor miatt laparoszkópos CME-műtétre kerülő beteget
választunk ki preoperatív 1 : 1 arányú randomizálással. A vizsgálati csoportnál
(A) a. és v. mesenterica superior virtuális 3D modellt készítünk, a
kontrollcsoportnál (B) ilyen nem készül. Regisztráljuk a demográfiai adatokat, a
CME-műtét standard lépéseinek idejét, a vérvesztést, érsérülést, konverziót, a
nyirokcsomószámot, a specimenminőséget, a posztoperatív szövődményeket és a
kórházi tartózkodást. A modell hasznosságát a sebészek 0 és 10 között értékelik.
Hosszú távú onkológiai eredményeket is vizsgálunk. Eredmények:
A kézirat leadásakor 29 beteg került beválasztásra (A = 18, B = 11). A két
csoport demográfiai mutatói megegyeznek. A műtéti vérveszteség (p = 0,40), a
konverziók aránya (p = 0,75), a posztoperatív szövődmények előfordulása (p =
0,82) és a kórházi tartózkodás (p = 0,40) hasonló a két csoportban, a műtéti
specimenek minősége és a nyirokcsomók száma (p = 0,76) szintén nem különbözik. A
műtét egyes lépéseinek idejében eddig nincs szignifikáns különbség. A sebészek a
modell hasznosságát 7,6/10-re értékelik átlagosan. A legmagasabb pontot a
Henle-véna (8,3) és az ileocolicus erek (7,8) azonosításában, a legalacsonyabb
pontot a gastroepiploicus blokkdissectio (5,2) esetében kapta a modell. A
vizsgálatból beteg nem esett ki. Következtetés: A 3D modellek
szubjektív értékelése nagyon jó, elsősorban az ileocolicus erek azonosításában
és a Henle-véna anatómiájának intraoperatív azonosításában nyújt segítséget, az
itt mért műtéti időkben a 3D modell esetében javuló trend látható. Az elemszámok
növekedésével számítunk szignifikáns különbségre. Orv Hetil. 2023; 164(49):
1938–1946.
Study of medium-high shelf life ready-to-use dough rolls for making “pizza napoletana”
Authors: Falciano Aniello , Di Pierro Prospero , Sorrentino Angela , Cavella Silvana , Masi Paolo , Romano Annalisa
Published: December 2023

The aim of this work was to investigate the possibility of developing an innovative technology to obtain ready-to-use dough rolls with a medium-high shelf life, useful for pizza-making within the disciplinary procedures of Pizza Napoletana production. For this purpose, dough obtained according to the classic recipe was leavened for 20 min at 25°C, divided into 250 g dough rolls, and further leavened for 8 (C8) or 16 h (C16) at 22°C before packaging. The packed samples were stored at 2.0 ± 0.5°C for 28 days. Every 7 days, colony-forming units, pH, total titratable acidity, volume, and the consistency of the dough rolls were evaluated. After 28 days, the samples with the longer leavening time (C16) exhibited similar characteristics to the fresh product. In addition, the ability of the dough to develop a pizza rim was evaluated through cooking tests after 28 days of storage: the rims of the C16 rolls were similar to that of the fresh product. These results represent an important starting point for large-scale marketing of ready-to-use dough rolls, allowing consumers to taste a real “Pizza Napoletana” (TSG) product even in pizzerias outside the Campania region.
Synthesis of intermediate derivatives from Schweinfurthin G using chiral ionic liquid
Authors: Nguyen Thuy Linh  , Bui Thi Minh Anh  , Tran Van Hieu  , Phi Thi Dao  , Tran Thu Huong  , Doan Thi Mai Huong  , Pham Van Cuong
Published: December 2023

Schweinfurthins possess a wide diversity of important biological and pharmacological activities. To date, more than fifty schweinfurthins and their analogues have been prepared for the investigation of structure-function relationships. Schweinfurthin G, one of the most representative of schweinfurthins containing the hexahydroxanthene moiety, was found to strongly inhibit the growth of cancer cell lines when evaluated on the U87 cell line (EC50 of 0.04 µM), and on the KB cell line (IC50 of 0.06 µM). Ionic liquids have been regarded as “solvents of the future” and applied in various fields. They have been utilized most widely in modern organic synthesis as an environmentally friendly alternative to conventional organic solvents and catalysts due to their flexible, nonvolatile, noncorrosive, low viscous properties and they still maintain similar and sometimes enhanced chemical selectivity and reactivity of organic reactions. In this paper, we present the synthesis of intermediate compounds 2 and 3, which are the key compounds for synthesizing the derivatives of schweinfurthin G using chiral ionic liquid. These compounds are the key blocks to further synthesize schweinfurthin G derivatives for biological activity tests.
Fracture analysis in 2D plane strain problems for composite materials containing hard inclusions and voids using an extended consecutive-interpolation quadrilateral element
Authors: Hoang Binh Hai , Lo Vay Siu , Tran Bang Kim , TRUONG Thien Tich
Published: December 2023

This paper investigates fracture mechanics in particle-reinforced composites by using the extended finite element method enhanced by the consecutive-interpolation quadrilateral element. These composite materials have discontinuous boundaries such as cracks, voids, holes, and soft inclusions. And the extended consecutive-interpolation quadrilateral element (XCQ4) is employed to model these boundaries in two-dimensional linear elastic deformation problems. XCQ4 combines the enrichment functions in the traditional extended finite element method with the consecutive interpolation on a 4-node quadrilateral element. This element uses both nodal values and averaged nodal gradients as interpolated conditions. In fracture analysis, the stress intensity factors (SIFs) are important parameters that must be defined.  In this study, the values of SIFs at the crack tips are evaluated with the help of the interaction integrals approach. The obtained numerical results are compared with other reliable results showing high accuracy and convergence rate of the XCQ4 element.
Testing the Effectiveness of Psycho-Educational Program for Establishing Safe Relationships Based on Intimate Justice Theory
Authors: ÖZSOY Gülay , AVCI Raşit
Published: December 2023

Although romantic relationships are seen in every age range, it is seen that not every romantic relationship has the same quality. Individuals feel more secure and competent when they maintain a secure relationship. On the other hand, individuals who do not have a secure relationship are quite common. Although dating violence is seen in every period, its prevalence continues to increase and unfortunately leads to undesirable results. Although dating violence is first thought of as physical violence by individuals, it also includes verbal violence, psychological violence and sexual violence. In addition, there are studies that show that both women and men are exposed to dating violence. In particular, individuals in the transition period to adulthood, which coincides with their university years, are in the process of choosing a spouse after leaving the family. For this reason, romantic relationships in this period can affect the later periods of the individual's life. Unfortunately, there are individuals who are exposed to dating violence during their university years.This research aimed to test the effect of the psycho-educational program based on Intimate Justice Theory for college students to establish safe relationships. The research utilized the embedded mixed design. The study group was composed of 20 pre-service teachers (10 in experimental group, 10 in control group) in a state university in Turkey in the spring term of 2021-2022 academic year. The research data were collected via the Intimate Partner Violence Attitude Scale and a procedure evaluation form. The experimental group was subjected to a 9-session group psycho-educational program while there was no intervention for the control group. Analysis revealed that the participants in the experimental group had lower posttest scores compared to their pretest scores, but this decrease was not statistically significant. It was observed that the post-test scores obtained from the control group increased. In addition, the participants in the experimental group reported that they benefited from the program with regards to communication
Performance of cement mortar mixes containing fine reclaimed asphalt pavement aggregates and zinc waste
Authors: Saini Surendra Kumar , Sahdeo Surya Kant , Ransinchung RN G. D. , Kumar Praveen
Published: December 2023

Cement mortar mixes were prepared to test the suitability of fine reclaimed asphalt pavement (FRAP) aggregates as a replacement for natural fine aggregates (NFA). With different amounts of NFA (25%, 50%, 75% and 100% by weight) replaced with FRAP aggregates, the mechanical qualities of the mortar mix deteriorated. To counteract this, jarosite – a waste from the zinc industry – was used as a partial replacement for cement (replacements of 5%, 10% and 15%). The jarosite improved the microstructural, mechanical and shrinkage properties. For example, compared with the control mix (100% NFA), the mix containing 25% FRAP aggregates showed a 5.5% reduction in hardened density and a 14% reduction in compressive strength. With the addition of 10% jarosite, there was an increase of 4.85% in hardened density and 7% in compressive strength with respect to the mix containing 25% FRAP aggregates. It is thus suggested that 10% jarosite is used when FRAP aggregates are used to make cement mortar mixes. A cost analysis was also performed. The findings of this work are expected to inspire rational mix design recommendations for mortar mixes including FRAP aggregates, as well as bringing environmental and economic benefits by reducing carbon dioxide footprints.
Effects of gold tailings dosage and polyvinyl alcohol fibre content on the frost resistance of ECC
Authors: Ge Zhi , Chen Chuansong , Bi Yufeng , Zhang Hongzhi , Guan Yanhua , Yang Yongwei , Ling Yifeng , Sun Renjuan
Published: December 2023

The effects of gold tailings and polyvinyl alcohol (PVA) fibre on the frost resistance of engineered cementitious composites (ECC) were investigated. The ECC were made with three gold tailings dosages and four PVA fibre contents. A water/binder (w/b) ratio of 0.28 was used for all mixtures. Surface damage, mass loss, relative dynamic elastic modulus, compressive strength and damaged layer thickness (DLT) were investigated to assess the frost resistance of the ECC. The results showed that the effect of gold tailings on the frost resistance of the ECC was marginal, but the frost resistance increased with an increase in PVA fibre content. The ECC with the addition of gold tailings had the same excellent frost resistance as those without gold tailings, indicating that it is feasible to replace silica sand with gold tailings at up to 100% replacement. A model to predict the DLT in ECC as a function of gold tailings dosage and freeze–thaw cycles was developed.
New method for determining the mode I fracture toughness of shotcrete: edge-notched partial disc test
Authors: Manesh Mohammad Omidi , Sarfarazi Vahab , Babanouri Nima , Rezaei Amir , Far Arsham Moayedi
Published: December 2023

The fracture toughness (mode I) of shotcrete specimens was obtained using edge-notched partial disc (ENPD) specimens. Notched Brazilian discs (NBDs) were also tested to validate the results of the ENPD experiments. Numerical analysis was also conducted on the ENPD results to compare the measured and numerically obtained fracture toughness values. The notch lengths in the ENPD specimens were 15, 30, 45 and 60 mm, while the notch lengths in the NBD specimens were 10, 20, 30, 40, 50 and 60 mm. It was found that the flat joint model accurately predicted the potential crack growth path and crack initiation stress as compared with the experimental results. It was also deduced that the fracture toughness was roughly the same with an increase in the notch length. The tensile strength (σt) and fracture toughness (KIC) of the shotcrete specimens were found to be meaningfully correlated (σt = 7.92KIC). The ENPD tests yielded the lowest fracture toughness values because of the pure tensile stress distribution on the failure surface. It was also found that the derived fracture extension patterns from the laboratory investigations were in acceptable agreement with the outputs of numerical simulations.
Cost management for importing equipment and its improvement with tailored supporting business processes at an enterprise
Authors:   Perm State University, Bazueva Elena V. , Modorskaya Galina G. ,   Perm State University, Shchelkanova Marina A. ,   Invest-Audit Limited Liability Company
Published: December 2023

Introduction. These days, extra institutional restrictions call for new methods of managing the costs for importing equipment at the national enterprises.Purpose. The article aims to develop methodological cost management tools for importing mineral fertilizer equipment with tailored supporting business processesat the enterprises. Materials and Methods. Algorithmic and non-algorithmic approaches are applied to tailor businesses processes at an enterprise. Results.The article proposes an organization-based cost management mechanism for importing equipment with tailored supporting business processes at the enterprises. Paper’s scientific novelty can be described as follows: 1) integration of algorithmicand non-algorithmic approaches, which are ambivalently applied these days, to tailoring business processes; 2) development of fundamental principles for updating the cost management system for importing equipment with tailored business processes (safety, efficiency, quality, environmental friendliness, sustainability) which account for unique operating conditions of the chemical enterprises. The proposed organization-based cost management mechanism for importing equipment with tailored supporting business processes was tested at the particular enterprise. The article shows that algorithm-based managementtools refer to clear technical characteristics and a particular sequence of steps at a particular procurement stage. This contributes into organizing procurement business processes.Conclusion. Proposed management tools derived from a non-algorithmic approach could permanently adjust the system to the changes in the enterprise’s external and internal environment. The economic efficiency of the tools developed by the authors is demonstrated. Further research is seen to be associated with the synthesis of algorithmic and non-algorithmic approaches to improve all groups of business processes (core business processes management and development processes) at a chemical enterprise, as well as with testing the proposed tools at the enterprises in other sectors of economy.
Assessment of water use in the regions of Russia by water supply, efficiency, and sustainable development criteria
Authors:   Institute of Socio-Economic and Energy Problems of the Northern Komi Science Centre of the Ural Branch of the Russian Academy of Sciences,, Fomina Valentina F.
Published: December 2023

Introduction. The 2018-2028 period is proclaimed to be an international Water for Sustainable Development Decade for Action in order to focus more attentionon the SDGs as a part of the Agenda for Sustainable Development. Global trends to lower fresh water consumption rate, as well as unbiased evaluation of the 2020 Russian Federation Water Strategy determine the relevance of the efficient and sustainable development of water use in the country’s regions.Purpose. The article refers to the criteria of water availability, efficiency, and sustainable development and compares the water use in federal districts.Materials and Methods. The authors examined the data of Rosstat and the NIA-Prirоda. The data characterize water use and the economy in federal districts in 2007–2020. The study exploited the methods of statistical and comparative analysis, decoupling analysis based on the Diamond Decoupling model.Results.The assessment of water availability by a water withdrawal share in renewable water resources (water stress index) shows a low level of water pressure in all districts. Unlike the Falkenmark index, specific water supply reveals no water tension factor holding back the economy growth. The study identifies a trend towards lower absolute and specific indicators of water intake and use. The changes in the structure of total water consumption are in line with the principles of rational use of resources. The study finds the indicators of productivity (in accordance with SDG 6.4.1) and intensity (GRP water intensity) of water intake, which are significantly affected by the development of circulating systems increasing the efficiency of water use. The article notes that in some regions, the target indicator of the Water Strategy was not reached due to a high decrease rate in water intake intensity. Decoupling analysis revealed a strong decoupling of economic growth from the use of water resources in all federal districts.Conclusion. The criteria for reasonable, efficient and sustainable development, which supplement the integral indicator of the gross water capacity, have been developed and tested. This helps reveal that federal districts are highly differentiated by their water supply and the nature of water use. New findings should be taken into account when planning water management activities and may be useful in updating the 2035 Water Strategy of the Russian Federation.
Analytical review and systematization of available decarbonization options for oil and gas business
Authors:   Luzin Institute for Economic Studies – Subdivision of the Federal Research Centre Kola Science Centre of the Russian Academy of Sciences, Kuznetsova Ekaterina Aleksandrovna , Riadinskaia Arina Pavlovna ,   Luzin Institute for Economic Studies – Subdivision of the Federal Research Centre Kola Science Centre of the Russian Academy of Sciences, Cherepovitsyna Alina Aleksandrovna ,   Luzin Institute for Economic Studies – Subdivision of the Federal Research Centre Kola Science Centre of the Russian Academy of Sciences
Published: December 2023

Introduction. Global climate goals call for an urgent and substantial decreasein greenhouse gas emissions. Being both a producer and a consumer of energy resources, oil and gas business is responsible for a significant part of global emissions, but also has great capacities to lower its carbon footprint. Analysis of the existing literature revealed that a wide range of decarbonizationoptions remains unsystematic, which complicates management and researchactivities in the field of low-carbon development of the oil and gas industry. Purpose. This article is aimed at systematizing decarbonization options for oil and gas business. Materials and Methods. The research refers to the publicly available resources. The materials are the academic papers about decarbonization, carbon neutrality, development of oil and gas business in the context of low carbon agenda, reports of the research and analytical international organizations, reports of the governmental organizations. The study applied the desk analysis methods, content analysis, decomposition,grouping, analysis (critical and comparative) and synthesis. Results. The requirements and approaches to accounting for greenhouse gas emissions were analyzed, and the main sources of emissions in oil and gas production were identified. The fundamental concepts in relation to the decarbonizationof the oil and gas business are systematized. The paper describes the proposedsystematization of decarbonization options for the oil and gas business with the focus on a hierarchy from general areas of activity to groups of options, decarbonization options and specific technologies (techniques). Conclusion. The research outlined four areas of decarbonization for oil and gas business:(1) improvement of operational activities; (2) transition to low-carbon energysources; (3) work with associated components and production wastes; (4) application of corporate management methods. The paper describes the examples of compensation options available to oil and gas companies and distributes decarbonization options by production stages and by coverage areas.