bluuebunny/crossref_metadata_2025 huggingface dataset:
Operative Serviceplanung für Produkt-Service Systeme
Authors: Alp Enes , Schikora Niclas , Knott Marius , Kuhlenkötter Bernd
Published: December 2023

Immer mehr Unternehmen innovieren ihre Geschäftsmodelle und bieten Produkt-Service Systeme an. Dies ist mit verschiedenen Herausforderungen der operativen Serviceplanung verbunden. Die vorliegende Studie untersucht die Beschaffenheit der Serviceplanung in vier verschiedenen Unternehmen. Es stellt sich heraus, dass Pläne manuell erstellt werden. So beruhen die Entscheidungen in der Serviceplanung auf den subjektiven Erfahrungen der Planer, und etwaige Optimierungspotenziale werden nicht ausgeschöpft.
Effizienzsteigerung bei der Industrieroboterprogrammierung dank Kollaboration
Authors: Stepputat Marten , Beuß Florian , Sender Jan
Published: December 2023

Eine wirtschaftliche Programmierung von Robotern zur Kleinserienbearbeitung mit verschiedenen Werkzeugen ist nur bedingt nicht möglich. Insbesondere fehlende Qualifikationen sowie die Matrixprogrammierung zur Bauteilaufnahme und -ablage verhindern in KMU den Einsatz von Industrierobotik. In einem Forschungsprojekt wurde ein System entwickelt, welches mit Handführung, kamerabasierter Bauteilerkennung und intuitiver Nutzerführung komplexe Programmiervorgänge stark vereinfacht.
Bewertung von Produktionsstrategien in der Automobilindustrie
Authors: Hilmer Maximilian , Riedel Ralph , von Unwerth Thomas
Published: December 2023

Die Automobilindustrie befindet sich seit Jahren im Ausnahmezustand, da der Wechsel von einer Einheitsantriebsart hin zu einem Mix an Antriebsarten parallel zu globalen Krisen bewältigt werden muss. Der vorliegende Beitrag liefert dazu beispielhafte Betrachtungen zur indikativen Bewertung der gegensätzlichen Produktionsstrategien Mix- oder sortenreiner Produktion von Fahrzeugen mit alternativen und konventionellen Antrieben. Die Erkenntnisse können genutzt werden, um Modelle zur Wahl der richtigen Produktionsstrategien abzuleiten.
Flexible Roboterzelle für Traktionsbatterie-Demontage
Authors: Gerlitz Eduard , Fuchs Tobias , Kößler Florian , Fleischer Jürgen
Published: December 2023

Ein effizientes Recycling von Traktionsbatterien im Sinne der Kreislaufwirtschaft setzt eine granulare Demontage bis auf Zellebene voraus. Im folgenden Beitrag wird eine umgesetzte Roboterzelle zur Demontage von Li-Ionen-Batteriemodulen vorgestellt. Insbesondere werden erfolgreich erprobte Schlüsseltechnologien zur Realisierung der Flexibilität aufgezeigt, die für eine adaptive Roboterzelle essentiell sind. Darüber hinaus werden technologische Maßnahmen zur Flexibilisierung auf verschiedenen Ebenen diskutiert.
Assessment of surface roughness and compressive strength of resin-based composite using different types of bleaching protocols.
Authors:   Department of Pedodontics, Orthodontics and Preventive Dentistry, College of Dentistry, Hawler Medical University, Erbil, Iraq., Suleman Hemn Muhssin
Published: December 2023

Background and objective: This study aimed to evaluate the effect of three types of bleaching protocols on the surface roughness and compressive strength of composite resin. Methods: Eighty composite resin samples were prepared using metal molds; forty samples (2 mm in height and 8 mm in diameter) for surface roughness evaluation and the other forty samples (6 mm in height and 4 mm in diameter) for compressive strength. Every forty samples were divided into four groups; Group 1 (n = 10) The samples were stored in deionized water at 37°C for two weeks as control, group 2 (n =10) The samples were subjected to bleaching with 22% Carbamide Peroxide (CP) Home bleaching, group 3 (n =10) The samples were subjected to bleaching with 14% Hydrogen Peroxide (HP) Home bleaching and group 4 (n =10) The samples were subjected to bleaching with 25% Hydrogen Peroxide (HP in-Office) in a dental clinic. After bleaching, groups 2, 3, and 4 were evaluated for surface roughness and compressive strength. Results: The enamel surface roughness of all specimens were increased after bleaching protocols to a very similar extent with no statistically significant difference between the means of enamel roughness of the control group and the other three groups and the highest value was recorded in the Carbamide Peroxide group (CP), while compressive strength of the composite was decreased after using bleaching protocols in all groups in comparison with the control group and the least compressive strength was recorded in (HP) group followed by (HP in-Office) group and (CP) group respectively. Conclusions: Within the limitation of this study, the following conclusions can be drawn: There was a decrease in surface roughness using different types of bleaching protocols (22% CP and 14% HP) at-Home bleaching technique and (25%) in-Office HP bleaching. Although there was no significant difference between them. The compressive strength of the composite resin was reduced after bleaching with no significant difference. Keywords: Bleaching protocol, Hydrogen peroxide, Carbamide peroxide
The Effect of Force Application on the Stability of Mini-Screw in Different Insertion Angles (An in-vitro Study).
Authors:   Department of Pedodontics, Orthodontics and Preventive Dentistry, College of Dentistry, Hawler Medical University, Erbil, Iraq., Binyamen Lazha Latif , Omer Zana Qadir
Published: December 2023

Background and Objective: The stability of the mini-screw is an important factor for the success of orthodontic treatment using an absolute anchorage system. This study aims to evaluate the ideal insertion angle of a mini-implant in relation to force direction and to evaluate the maximum amount of force application at a specific angular configuration. Method: In this experimental study 72 mini-screws were used, 36 of them were used for each shear and tensile force tests, eighteen samples were taken for the bone density D2 (nine for 60 degree angle, and nine for 90 degree angle), and 18 others were taken for the bone density D3 (nine for 60 degree angle, and nine for 90 degree angle). Guiding stents were fabricated for proper insertion angle, torque and speed were controlled by contra -angled handpiece. Shear and tensile force tests are done with the aid of a Universal Testing Machine. Results: Mini-implants inserted at 90 degree angle over D2 density bone had higher stability when performing the tensile force test, while in the shear force test mini-implants placed at 60 degree angle were more stable when inserted on bony blocks with D3 density, however it was noted that the results were statistically not significant when compared with 60 degree insertion on blocks with D2 density. Conclusion: To maintain a stable mini-implant during the orthodontic process, the ideal insertion angle is 90 degree when the force direction is vertical, tensile force, and its more appropriate to place the mini-implant at 60 degree angle when the direction of force is in a horizontal direction, shear force. Keywords: Mini-screw, Stability, Insertion Angle, Shear force, Tensile force
The prevalence of frontal sinus agenesis (aplasia) among Kurdish populations of Erbil city.
Authors:   Department of Oral and Maxillofacial Surgery, College of Dentistry, Hawler Medical University, Erbil, Iraq., Karim Soran M
Published: December 2023

Background and objective: The frontal bone contains a pair of air-filled hollow cavities called frontal sinuses, the size, shape and anatomic measurements and dimensions of the frontal sinuses are determined by the degree of its pneumatization. Any disturbance to the sinus during its early development stages could results whether in hypoplasia (underdevelopment) or aplasia (total lack) of the sinus either unilaterally or bilaterally. This study aims to investigate the prevalence of aplasia of the frontal sinus among Kurdish populations of Erbil city, in addition to assessment of the type of aplasia and gender impact on the condition if there is any. Methods: This retrospective/radiological study was conducted on randomly selected PA (Caldwell view or occipito-frontal) plain radiographic images of 512 Kurdish individuals of mixed genders, ages ranging between 18 to 64 years and images were taken from the periods between April 2020 to May 2022. Results: Careful examination of 512 assessed PA radiographs (with patient’s ages ranging between 18 to 65 years) showed agenesis of the frontal sinus in 26 cases (5.16 %), 17 females and 9 male cases), the type and location of the agenesis varied greatly as it was bilateral agenesis type only in 7 cases, and unilateral in remaining 19 cases, among the unilateral sinus agenesis cases 2 were observed to be agenesis of the left and 17 of the right frontal sinuses respectively. Keywords: Prevalence, Frontal bone, Frontal sinus, Aplasia, Kurdish peoples, Anatomical variations
Evaluation of root development of mandibular first molar of children (6-12) years old visiting P.O.P. department College of Dentistry/ Hawler Medical University.
Authors:   Department of POP, College of Dentistry, Hawler Medical University, Erbil, Iraq., Ameen Yara Ismail , Taher Manal Muhammed , Abduljabar Mahmood Fawzi
Published: December 2023

Background and objective: With FPMs between the ages of 6 and 12, the detection of open apex in some children at age 12 underlines the necessity for investigation prior to treating a deep carious lesion.Pulpal involvement was considered before the surgery began. The genesis of the roots is complete. Dentists are urged to conduct a comprehensive clinical examination, get diagnostic radiographs, and adhere to case-specific treatment protocols before attempting to treat FPMs in children, even those as young as 12 years old. This would reduce the likelihood of treatment mistakes, which might hinder the extraction of FPMs or cause unacceptable damage. Method: Dentists in the Paediatric Dentistry Department at Hawler Medical University saw all the children in the sample, and they were all in good health condition. This research evaluated the crown and root development stages of lower FPMs on both sides, as found by Demirjian et al. (1973). Information was collected in Excel 2017 for use in making charts and tables. Mean and standard deviation values. The T-test, either paired or unpaired, with a p-value of 0.05 serving as the threshold for statistical significance. Results: The findings showed that there was a total of 250 OPGs, with 130 belonging to females and 120 belonging to boys. The ages of the children that were considered for inclusion in the sample varied anywhere from six to twelve years old. In a sample of 12, the first molar in the mandibular region had the greatest percentage of AC (84.4%). Conclusions: The discovery of open apex in some children at 12 confirms the need for inquiry before treating a deep carious lesion in FPMs between the ages of 6 and 12. we evaluated the potential risk of pulpal involvement during this period. Before treating FPMs in children, even those as young as 12, the dentists were advised to do a thorough clinical examination, get diagnostic radiographs, and follow specific treatment procedures based on clinical instances. Keywords: tooth root, important tooth, root development, Demirjian technique.
Influence of Silicon on Oxidation and Adhesion of Oxide Scale on Hot-Rolled Steel Strips
Authors: Nilsonthi Thanasak , Singthanu Seksan
Published: December 2023

This research focuses on the influence of silicon alloys in hot-rolled steel strips. The steel used in the study was obtained from a hot rolling process with different silicon contents of 0.01, 0.1, 0.2, and 0.3 wt.%. The as-received oxide scale on the hot-rolled steel surface was completely removed by SiC paper and re-oxidized in a horizontal furnace with an atmosphere of 17% H2O-N2 at temperatures of 600°C, 650°C, and 700°C for 10 seconds. An investigation of scale adhesion can be done using a tensile testing machine with a CCD camera. The adhesion of the oxide scale to the steel surface was recorded on video. The oxide phase was examined by means of X-ray diffraction (XRD). The microstructure and thickness of the oxide scale were examined by a scanning electron microscope (SEM) with energy-dispersive X-ray spectroscopy (EDS). The results indicated that all steels studied produced oxide scales that consisted of hematite (Fe2O3) and magnetite (Fe3O4), which contained iron (Fe). The scale thickness tends to increase with increasing temperature, while thickness decreases with increasing Si content in steel. The oxide scale adhesion was indicated by the strain initiating the first spallation during tensile load. The results showed that the strain initiating the first scale spallation tends to decrease with increasing temperature, while scale adhesion increases with increasing Si content in steel. The mechanical adhesion of the oxide scale to the steel substrate was considered in terms of energy. The results indicate that the scale adhesion of steel with 0.3 wt.% Si was higher than that in another sample. It was possible that the presence of an oxide that contains Si at the scale-steel interface, which encourages scale adhesion. The mechanical adhesion energy of the oxide scale was shown in the range of 2-20 J/m2. The qualitative assessment of scale adhesion in terms of strain initiating the first spallation and mechanical adhesion energy suggested the good adhesion behavior of scale grown in the hot-rolled steel with 0.3 wt.% Si. This result indicates that scale formed on steel with a high silicon content tends to be difficult to remove. There was a need to control the Si content in the hot-rolled steel in a satisfactory way to save energy during the de-scale process.
О разрушении решения нелинейного уравнения Шредингера с малой нормой в суперкритическом случае
Authors: Puriuškis Gintaras
Published: December 2023

There is not abstract.
Effectiveness of the PSI BLAST algorithm in dependence on scanning word size
Authors: Margelevičius Mindaugas , Timinskas Albertas
Published: December 2023

The alignment searching algorithms for biomolecular sequences PSI-BLAST are reviewed in the article. We asses the feasibility to modify NCBI (National Center for Biotechnology Information) PSI-BLAST implementation. We modify the implementation of the iterative algorithm by increasing scanning word size. We also accomplish statistical analysis for each enzyme of the cytosine-5 methyltransferase family after we apply alignment searching for the biologically related protein sequences.
The accuracy of 3D structure-from-motion models for assessing underwater coral health
Authors: P Wijesinghe , T Hesselberg , O Burdekin
Published: December 2023

A fundamental problem with using human observations in marine ecology is that it is often fallible. This study monitored coral to compare the accuracy of traditional visual surveying and 3D structure-from-motion models in assessing coral health. In a pilot study, objects of known dimensions were rendered underwater to assess the accuracy of the 3D models; between the X-Y and Z dimensions accuracies of 93 ±0.09% (mean ±SD) and 93 ±0.04% were observed, respectively. Following this, two surveyors monitored three individual coral colonies over five months at La Mer (Dubai) for the following visual parameters; live, dead and bleached coral. Significant differences were detected amongst surveyors for these parameters only when traditional surveying was implemented. However, 3D modelling had a significant post-processing time. Nonetheless, results suggest that 3D modelling is a more accurate and consistent tool between surveyors over time for monitoring coral colonies. The potential for such technology to be up-scaled to capture complete 3D-coral reefs could allow researchers to more accurately explore long-term changes to these significant ecosystems.
Role of the community in the granting of blue flag certification at Tombo beach (Guarujá, Brazil)
Authors: Barrella Walter , Viana Leandro Machado
Published: December 2023

In 2009, Tombo Beach in Guarujá (Brazil) received Blue Flag Certification, an ecological seal granted to beaches that meet environmental conservation requirements. Tombo Beach’s certification was the third in the program’s history in Brazil. Started in 1987, the Blue Flag Program is one of the most critical ecological seals created for the sustainable development of beaches and marinas that adopt careful water quality treatment, environmental education and information, environmental management, security, and other services. Thus, the objective of this study was to evaluate the knowledge of the requirements above by visitors to Tombo Beach to determine their participation in maintaining certification. To this end, structured questionnaires were used in interviews carried out in April in Tombo Beach, resulting in 300 interviews. Analysis of the data obtained through interviews (n=300) indicated restricted knowledge on the part of attendees regarding the requirements set out in the Blue Flag Program, demonstrating critical deficiencies, especially about environmental education programs. Furthermore, we sought to discuss the benefits of certification in increasing the attraction of visitors to disseminate the culture of accreditation on Brazilian beaches.
Norm attaining bilinear forms of ${\mathcal L}(^2 d_{*}(1, w)^2)$ at given vectors
Authors: Kim S.G.
Published: December 2023

For given unit vectors $x_1, \cdots, x_n$ of a real Banach space $E,$ we define $$NA({\mathcal L}(^nE))(x_1, \cdots, x_n)=\{T\in {\mathcal L}(^nE): |T(x_1, \cdots, x_n)|=\|T\|=1\},$$ where ${\mathcal L}(^nE)$ denotes the Banach space of all continuous $n$-linear forms on $E$ endowed with the norm $\|T\|=\sup_{\|x_k\|=1, 1\leq k\leq n}{|T(x_1, \ldots, x_n)|}$.In this paper, we classify $NA({\mathcal L}(^2 d_{*}(1, w)^2))(Z_1, Z_2)$ for unit vectors $Z_1, Z_2\in d_{*}(1, w)^2,$ where $d_{*}(1, w)^2=\mathbb{R}^2$ with the norm of weight $0<w<1$ endowed with $\|(x, y)\|_{d_*(1, w)}=\max\Big\{|x|, |y|, \frac{|x|+|y|}{1+w}\Big\}$.
Kilka uwag na temat niezależności prawnomajątkowej Terencji w świetle fragmentów korespondencji Cycerona
Authors: Ejankowska Elżbieta
Published: December 2023

Celem niniejszego artykułu jest ukazanie, na ile w okresie schyłkowym republiki możliwy był samodzielny udział kobiety rzymskiej sui iuris w obrocie prawno- majątkowym. Podstawę źródłową rozważań stanowią fragmenty korespondencji Cicerona, które dotyczą działalności gospodarczej jego żony Terencji. Jakkolwiek  w niewielu listach mówcy pojawiają się informacje dotyczące tego aspektu jego małżeństwa to są one bardzo cenne, gdyż umożliwiają kolejne uzupełnienie badań nad sytuacją prawnomajątkową kobiety w państwie rzymskim. Analiza tych źródeł prowadzi do konkluzji, że – mimo ograniczeń, które wynikały z tutela mulierum – kobiety mogły brać udział w obrocie prawno – gospodarczym i samodzielnie kształtować swoje położenie majątkowe.
Degradacja zasady jawności: rewolucja czy kontynuacja przyjętej strategii?
Authors: Iaroslavska Marianna
Published: December 2023

Ustawodawca coraz częściej dąży do przyspieszania postępowania kosztem zasady jawności. Artykuł przedstawia analizę zmian, jakie zaszły w odniesieniu do zasady jawności w postępowaniu cywilnym, a także dylematów, jakie pojawiły się z powodu ograniczania jawności. Rozważania koncentrują się wokół tematyki naczelnych zasad procesu, w szczególności zasady jawności, instytucji ograniczających zasadę jawności oraz konfliktu między zasadą jawności a postulatem szybkości.
Niewolnictwo z perspektywy rzymskiego prawa prywatnego. Refleksje na kanwie niepublikowanego referatu Kazimierza Kolańczyka z 1980 roku
Authors: Nancka Grzegorz
Published: December 2023

Kazimierz Kolańczyk był jednym z najbardziej znanych polskich XX wiecznych romanistów. Znany przede wszystkim jako autor podręcznika Prawo rzymskie, nie pozostawił po sobie zbyt wielu ogłoszonych drukiem prac romanistycznych. Analiza materiałów archiwalnych znajdujących się w Archiwum Polskiej Akademii Nauk, oddział w Poznaniu, doprowadziła do odnalezienia niepublikowanego referatu „Sytuacja prawna niewolnika w starożytnym Rzymie”, który został przygotowany i wygłoszony w 1980 roku. Niniejszy artykuł ma na celu zwrócenie uwagi na ten nieznany szerszemu gronu odbiorców referat, a także ma służyć jako przyczynek do badań nad osiągnięciami tego romanisty.
O wolności, która ma granice – czyli o problemie wytyczania granic wolności w piśmiennictwie polskim okresu międzypowstaniowego
Authors: Dworak Anna
Published: December 2023

Celem artykułu jest pokazanie na przykładach XIX-wiecznych tekstów, że poza oczywistą w tamtym czasie afirmacją wolności, pisarze, poeci, publicyści mieli świadomość ograniczeń, którym wolność podlega albo podlegać powinna. W kolejnych częściach podjęta zostaje próba zdefiniowania pojęcia wolności, omówione zostają także ograniczenia wolności dotyczące różnych sfer: politycznej, społecznej, osobistej, a w końcu również wolności druku.
O kilku sposobach uobecniania się motywu wolności lub jej braku w powieściach Pauliny Wilkońskiej
Authors: Berkan-Jabłońska Maria
Published: December 2023

W niniejszym artykule przedmiotem uwagi jest kilka sposobów uobecniania się motywu wolności lub jej braku w powieściach Pauliny Wilkońskiej, reprezentantki literatury popularnej XIX wieku. Zagadnienie to omówiono w odniesieniu do trzech sfer. Pierwsza z nich wiąże się z tematyzacją pragnienia wolności i doświadczania niewoli narodowej. Druga dotyczy ograniczeń swobody podmiotu w przestrzeni społeczno-obyczajowej, ze szczególnym uwzględnieniem sytuacji młodych ludzi poddanych przemocy przesądów i naciskom finansowym. Trzeci wymiar analizy obejmuje strategie wolności odautorskiej, wyrażające się w przyjemności pisania i jego autoterapeutycznej funkcji oraz wybranych zabiegach podtrzymujących więź z czytelnikiem. Bowiem to właśnie czytelnik jest tu traktowany jako niejawny, ale niezwykle ważny bohater prozy Wilkońskiej.
„Dla innej przyszłości świata”. Dojrzała myśl utopianistyczna na łamach „Problemów”
Authors: Wyskiel Kinga
Published: December 2023

Artykuł stanowi próbę interpretacji w duchu badań utopian studies artykułów i utworów literackich publikowanych w czasopiśmie „Problemy” w latach 1980–1985. Był to okres silnej obecności życzeniowych wizji rzeczywistości na łamach polskiej prasy, co wynikało z sytuacji kraju w dobie PRL-u. Zgodnie z badaniami takich zachodnich badaczy, jak Ruth Levitas wskazano na obecność utopianistycznego myślenia w artykułach pojawiających się w prasie popularnonaukowej. Skupiono się przede wszystkim na kilku wymiarach utopijnego myślenia: cybernetycznym, transhumanistycznym, ekologicznym, wychowawczym.
"Pembroke": A Script of Decadence
Authors: Wilczynski Marek
Published: December 2023

The article is an interpretation of Mary E. Wilkins Freeman’s novel Pembroke (1994). Even though it is set in the third decade of the 19th century, the year of publication suggests that it just as well refers to the condition of New England after the Civil War. Hit by a complex crisis, concerning demography, economy, and mores, after 1865 the region entered a stage of decadence. Wilkins Freeman diagnosed its symptoms, such as the collapse of interpersonal communication and the hypertrophy of individual will, showing that the portents of the decline of Puritan heritage had its roots in the first half of the century. With time, the symbolic system of New England culture collapsed and gave way to a new social order.
Between Nature and Civilization(s): American Wilderness as a Eurocentric Cultural Construct in Tony Morrison’s "A Mercy"
Authors: Vysotska Natalia
Published: December 2023

The paper sets out to explore the ways the traditional Western opposition “nature vs. civilization” is reworked in Toni Morrison’s A Mercy. The first aspect addressed in the paper is the author’s recasting of the original Puritan myth of America as New Eden by demonstrating  the historical impossibility of human-nature and human-human harmony on the “new” continent. This is achieved through presenting Jacob Vaark’s New England farm as a metaphor of Eden/enclosed garden transmogrifying from Utopian to Dystopian mode of functioning in the text, with apparent ecofeminist overtones.The second issue dealt with is “wilderness” as  one of the basic concepts underlying American Puritan world picture. The paper argues that in the novel “wilderness” as an inherent characteristic of England’s transatlantic territorial expanses, including both their physical and human resources, loses its essentialism and is unmasked as a Eurocentric cultural construct. In addition, the novel extends the notion of “civilization” beyond its Eurocentric boundaries featuring two non-European civilizations – Native American and African – as suggesting alternative (and much more positive) models of “nature-civilization” relationship.
Producing a recombinant vector that carries the vascular class III peroxidase (\(\textit{PRX1}\)) gene from \(\textit{Catharanthus roseus}\)
Authors: Cao Thi Thu Thuy , Nguyen Thi Bich Ngoc , Nguyen Duc Quan , Le Tat Thanh , Nguyen Huy Hoang , Huynh Thi Thu Hue
Published: December 2023

Terpenoid indole alkaloids (TIAs) vincristine and vinblastine are two essential anticancer drugs used in cancer treatments. These compounds are naturally available only in Catharanthus roseus in low accumulation, leading to efforts to upregulate TIAs substances through other expression organisms. The combination of vindoline and catharanthine into α-3∼,4∼-anhydrovinblastine (AVLB) is an important step for the biosynthesis of vinca alkaloids, which serves as a precursor to vinblastine and vincristine. Vascular class III peroxidase (PRX1) plays a crucial role in catalyzing the dimerization reaction. In this study, we created a recombinant plasmid consisting of the PRX1 gene with the aim to transform and express it stably in fungi. The full-length 1092 bp C. roseus PRX1 coding sequence was optimized to be suitable for a fungal translation system while keeping its amino acid sequence unchanged. The pGreen3 vector was used as the backbone to harbor the PRX1 and hygromycin-resistant gene (HYG)- which enabled fungi cells to survive in the HYG selection medium. This HYG gene was cut from the pGreen2 vector and inserted into the pGreen3 vector. Both PRX1 and HYG genes are located between the gpdA promoter and TrpC terminator structure. The recombinant plasmids were screened and amplified by transformation into Escherichia coli DH10B, and cultured in the LB medium containing kanamycin antibiotic. Our recombinant vector is suitable for further expression into endophytic fungi.
Chemical constituents of some essential oils bearing plants growing wild in Vietnam
Authors: Nguyen Phuong Hanh , Nguyen Thi Hien  , Nguyen Quoc Binh , Dinh Thi Thu Thuy
Published: December 2023

The essential oils of three plants were isolated by hydrodistillation and their constituents were analyzed by gas chromatography-mass spectrometry/flame ionization detection (GC/MS-FID) method. 29 compounds representing 99.00% of the total oil of inflorescences of Zingiber pellitum were identified, consisting mainly of α-pinene (5.34%), β-caryophyllene (39.13%) and α-humulene (36.69%). For Basilicum polystachyon, 41 and 37 components were identified in the leaf and flower oils, accounting for 91.32% and 92.44% of the total oils, respectively. Germacrene D (16.33% and 16.32%), germacrene B (14.95% and 16.23%), α-cubebene (13.38% and 19,04%), α-copaene (5.81% and 5.77%), δ-cadinene (4.78% and 4.18%), β-cis-elemene (4.34% and 4.66%), and γ-elemene (4.31% and 4.72%) were the major constituents in both oils. For the leaves of Litsea bavienes, 40 components were identified, representing 91.73% of the total oil contents, in which hepten-3-one (70.46%) was the most abundant compound in this oil. The chemical constituents of essential oils from Z. pellitum (inflorescences), B. polystachyon (leaves and flowers) and L. baviensis (leaves) were being reported for the first time.
DISCUSSÕES SOBRE AS ALTERNATIVAS DE TRATAMENTO DE LIXIVIADO DE ATERRO SANITÁRIO NO BRASIL DIANTE DO DESAFIO DOS CONTAMINANTES EMERGENTES
Authors: Pereira Barbara Costa , Oliveira Jaime Lopes da Mota , Nascentes Alexandre Lioi
Published: December 2023

Os aterros sanitários são uma técnica de disposição final de resíduos que vai ao encontro das exigências legais brasileiras. No entanto, os processos que ocorrem nas células dos aterros originam um efluente de complexa composição denominado lixiviado, o qual requer tratamento adequado. Diferentes processos de tratamento de lixiviado considerados avançados já têm sido empregados no Brasil. Além disso, uma estratégia muito comum é o envio do lixiviado para as estações de tratamento de esgoto (ETE), para que os dois efluentes sejam tratados de forma conjunta. Porém, tanto os processos adotados nas estações de tratamento de lixiviado quanto os que se utilizam nas ETE, têm por objetivo a remoção de matéria orgânica e nutrientes, não contemplando os chamados contaminantes emergentes. Diante disso, este trabalho se propõe a discutir as principais formas de tratamento do lixiviado de aterro sanitário, com ênfase na remoção desses contaminantes. Muitas das técnicas de tratamento estudadas já são adotadas para tratar lixiviados em aterros brasileiros, o que pode significar eventual remoção desses compostos. A inclusão destas técnicas, como etapa de pré-tratamento do lixiviado e pós-tratamento nas ETE que o recebem, poderia promover a redução de contaminantes emergentes no efluente final.
MODELAGEM DO FLUXO DE MINÉRIO DA BRITAGEM E CARREGAMENTO DE PRODUTOS DE UMA MINA NO SOFTWARE ARENA®
Authors: Machado Nayara Rilla de Souza , Cabral Ivo Eyer , Alves Vladmir Kronemberger , Assis Bárbara Dornelas de
Published: December 2023

A britagem é um processo integrante e indispensável da produção mineral, pois permite agregar valor ao produto, uma vez que adequa a granulometria do minério para posterior beneficiamento na usina. Neste trabalho o transporte da bauxita, a partir dos pátios de estocagem, é realizado por trens até o porto de embarque, processo esse que demanda ajustes de tempo e de eficiência de carregamento. Dessa forma, neste estudo, foram desenvolvidos modelos de simulação dos processos de britagem e carregamento de vagões no software Arena® para validação do sistema de produção de uma mineração. Os modelos de carregamento apresentaram resultados próximos dos reais e portanto, foram validados. Os modelos de britagem foram considerados válidos por fornecerem resultados coerentes após serem testados em diferentes cenários.
Theatrical Periodical Publications in the Bibliographic Dimension of Ukraine: Thematic and Cultural Orientations
Authors: GALATS’KA V. L. , FILIPENKO V. V.
Published: December 2023

Objective. Theater art today is a self-sufficient creative substance with a special metaphorical language. The scenic meaning of human existence is organically interpreted on the pages of unique periodical publications of the beginning of the 20th century, which were printed in the largest Ukrainian cities. The continuation of the tradition of publishing theatrical periodicals is observed at the end of the 20th and beginning of the 21st centuries. It is presented by specialized magazines "Kino-teatr [Cinema-Theatre]", "Ukrainian Theater", "Teatralna besida [Theatrical Conversation]" and others. Methods. Inductive-deductive, systemic, semiotic methods of research of scientific material and elements of cultural studies of mass media are applied. Results. Theatrical periodicals of Ukraine of the 20th and 21st centuries, which are found in the collections of the libraries of Kyiv, Dnipro, Lviv, and Kharkiv, have been analyzed. Their role in the creation of the socio-cultural space of Ukraine is studied, and the genre-thematic potential and cultural content are considered. Conclusions. Theatrical periodicals of the XX-XXI centuries. is characterized by a multi-genre presentation of the theatrical life of its time, and journalistic originality. This allows creative use of its potential in library activities as a cultural marker of time.
Representative Virtual Material Collections about University Scientists: The Experience of the Uzhhorod National University Library
Authors: MEDVED M. M.
Published: December 2023

Objective. The research is aimed at studying practical experience of creation and application of the representations of virtual material collections about the scientists of the Uzhhorod National University, as one of the important popularization mechanisms of the university science. Methods. Using our own developments, we attempted to familiarize the library community with the specialized methodology of representation work of the scientific library of the Uzhhorod National University during quarantine restrictions and martial law in Ukraine. Using the comparative analysis, the efficiency of the representations of virtual material collections, created by the library as publicizing the development of university science and culture of the region and the interest of remote users in them has been proven. Results. The substantiation of the obtained results is based on the characteristics of the Uzhhorod National University library during remote work of the institution, aimed at increasing the interest of virtual users in the content of the library. The efficiency of using the method of representations of information products of libraries during the period of difficult physical access to the library funds of Ukraine has been confirmed. Analysis of the expansion of the library’s information services and the practical recommendations regarding the active popularization of scientists and prominent figures of the Zakarpattia region are considered as one of the methods of reorienting the work of the library and its services in accordance with today’s challenges. Conclusions. The important role of library support in the popularization of science and culture of the region, as an important factor of practical library assistance to society during the times of trials for Ukraine, has been confirmed.
Communication Aspects of Media, Publishing, and Editorial Activities of University Libraries
Authors: KHARYTONENKO O. I. , SAVENKOVA L. V. , BILORUSTSEVA T. M. , MARIIENKO A. O.
Published: December 2023

Objective. The communication aspects of media, publishing, and editorial activities of university libraries were studied based on their official websites and the experience of the Scientific Library of the Drahomanov Ukrainian State University. The objective of this study is to track new trends in the library's media and communication activities. Methods. The methods used were observation, description, analysis and comparison of the content of the websites of Ukrainian and foreign libraries, as well as questionnaires and interviews with university stakeholders related to media activities. Results. The survey showed that the interaction of libraries with the media in the areas of information, consulting, providing factual and bibliographic references, access to collections and a pool of experts in various fields, and various educational events is in high demand. The means of popularizing and distributing their own media content are also common to libraries and media. Conclusions. University libraries should intensify their work with media and publishers on parity and mutually beneficial terms. Since the library in modern conditions produces and offers its own media products to the general public, the mass audience, it should also use the work methods of publishers and editorial offices with different groups of readers.
Differences in the standard of living of urban and rural residents in the Republic of Bashkortostan
Authors: Kabashova Elena
Published: December 2023

Due to the strong differentiation of the standard of living of urban and rural populations, studies on income and employment, depending on the type of settlement, are very relevant.
The purpose of the study is to develop a methodology for conducting a comparative analysis of the main aspects of the standard of living (income, employment) of the urban and rural population in the Republic of Bashkortostan. The empirical basis of the study was the data of official statistics, the results of the All-Russian Population Census, the results of a comprehensive observation of the living conditions of the population, as well as the rating of the subjects of the Russian Federation on the quality of life of the rural population. The article focuses on the comparative analysis of two components of the standard of living of urban and rural populations: income and employment, which are a kind of material foundation for the life of the population.
Excessive differences the developed methodology makes it possible to identify differences in the standard of living of urban and rural populations based on the integration of official statistics data, which represent actual macroeconomic indicators, and sociological indicators (subjective estimates of the population) obtained from the results of the CSW. The author shows that the differentiation of the quality of life of urban and rural populations is manifested in the sources of their income formation. Thus, in 2022, 70,5 % of respondents indicated wages as the main source of income in urban areas, while only 46,1 % in rural areas. A significant part of both urban and rural population is experiencing financial difficulties: 82,8 % — in urban areas; 75,5 % — in rural areas.
Excessive differences in the standard of living of the urban and rural population, as well as in the subjective assessments of the population of their financial situation, satisfaction with aspects of their work, should be taken into account by regional authorities when developing measures to equalize the standard of living of urban and rural residents.
DETERMINATION OF THE MASS BALANCE OF HIGH-CARBON FERROCHROME IN A SUBMERGED ARC FURNACE
Authors: Kapan Sinan , Camdali Unal , Celik Nevin
Published: December 2023

In this study, it is aimed to establish one-day mass balance of the materials entering into and leaving from a submerged arc furnace (SAF) where high-carbon ferrochrome is produced in it. The SAF is used in a plant located in Elazig, Turkey. For this purpose, measurements were taken from the SAF during one month by obtaining the necessary permits from the plant. In addition to these measurements, chemical reactions in the SAF are defined based on the information obtained from the literature and the plant. Chrome ore and rich slag are raw materials for furnace; as auxiliary raw materials, coke, coal, electrode paste, quartzite, and bauxite are fed. The product and the waste coming out of the SAF are high-carbon ferrochrome, slag, flue gas, and fly ash. Samples were taken from each raw material and auxiliary raw materials fed into the SAF and the products, then the chemical composition analysis was carried out by using an X-ray fluorescence (XRF) device. The reactions that take place in the SAF are carbothermic reduction reactions. Metal oxides (Cr2O3, Fe2O3, Al2O3, etc.) react with carbon and are reduced as MO + C = M + CO (M = metal). As a result of this study, the mass amounts of the materials entering into and leaving from the SAF established a balance.
Оценка вклада взаимной корреляции индивидуальных графиков в дисперсию суммарного графика электрической нагрузки
Authors: Звозникова Инна Александровна , Надтока Иван Иванович
Published: December 2023

Рассмотрены вопросы учета взаимной коррелированности индивидуальных графиков электрических нагрузок электроприемников и методы ее оценки при определении дисперсии суммарного графика электрической нагрузки по активной мощности с использованием некоррелированных компонентных моделей. Исследована возможность учета взаимной корреляции индивидуальных графиков электрической нагрузки с помощью их некоррелированных компонентных моделей и применения для оценки суммарного вклада в дисперсию суммарного графика электрической нагрузки. Использован математический аппарат ортогонального преобразования метода главных компонент для представления суммарного графика нагрузки через компонентные модели индивидуальных графиков. Предложены компонентные модели индивидуальных графиков электрической нагрузки для упрощенной оценки вклада взаимной корреляции индивидуальных графиков в дисперсию суммарного графика. Получены аналитические выражения для компонентных моделей индивидуальных и суммарного графиков нагрузки, а также для точной и приближенных оценок корреляционной составляющей в дисперсии суммарного графика электрической нагрузки. Результаты моделирования индивидуальных и суммарного графиков электрической нагрузки многоквартирного жилого дома показаны на примере экспериментальных суточных графиков нагрузки вводов 0,4 кВ, полученных по показаниям счетчиков электроэнергии на получасовых интервалах. Показано, что при приближенном моделировании суммарного графика нагрузки количество учитываемых компонентных моделей индивидуальных графиков определяется требуемой точностью расчетов и может быть не более трех с приемлемой для практических расчетов погрешностью моделирования. Взаимная корреляция индивидуальных графиков нагрузки электроприемников может быть учтена с использованием некоррелированных компонентных моделей.
Аппроксимация токов абсорбции электротехнических объектов методом наименьших квадратов
Authors: Соломенцев Ярослав Кириллович , Ховпачев Анатолий Андреевич , Плотников Дмитрий Александрович , Соломенцев Кирилл Юрьевич , Дьяченко Владимир Борисович
Published: December 2023

Рассмотрены проблемы, возникающие при аппроксимации экспериментально снятых зависимостей аналитическими функциями. В качестве примера представлена аппроксимация тока абсорбции, изменяющегося во времени. Предложено комбинирование прямого и итерационного методов: коэффициенты при базисных функциях находятся прямым, а остальные неизвестные – итерационным методом, а именно, методом оптимизации Левенберга – Марквардта. В данном случае методом оптимизации минимизирована невязка переопределенной СЛАУ. Аппроксимация осуществлена для ускоренного измерения сопротивления изоляции. В предлагаемом способе, не дожидаясь окончания тока абсорбции, использовано не измеренное установившееся значение тока, а оценка (прогноз) установившегося значения тока, вычисленного с помощью экстраполяции. За счет аппроксимации с последующей экстраполяцией в несколько раз уменьшено время измерения сопротивления изоляции объектов, имеющих большую электрическую емкость относительно земли. Путем комбинирования прямого и итерационного методов снижены вычислительные затраты. Это особенно актуально в связи с тем, что аппроксимацию и экстраполяцию выполняет микроконтроллер в реальном масштабе времени, то есть в течение времени измерительного цикла.
Academic Resilience of Students in Russian Schools: Factors Helping to Compensate for Low Family Status and Consequences of School Bullying
Authors: Тенишева Ксения , Болотова Виктория
Published: December 2023

This paper is devoted to the study of the effect of risk accumulation on academic resilience in Russian schools, as well as to the identification of protective factors for specific risk combinations. The present study considers three combinations of risks: only low socioprofessional status of the family, low socioprofessional status of the family and humiliation by teachers, low socioprofessional status of the family and bullying by peers. The sample includes 18,466 students in grades 6-9 of both urban and rural schools in the Kaluga region, Russia. According to the results of the analysis, the low socio-professional status of the family is the strongest predictor of lower student achievement. The hypothesis of accumulation of risks was confirmed: schoolchildren exposed to a combination of two negative factors are less likely to be resilient. Humiliation by teachers has a greater negative effect on academic performance than bullying by peers. Family involvement in studies and the number of books at home turned out to be universal factors. For students exposed to two risks at once, fewer protective factors are found: a sense of belonging to the school does not increase the chances of resilience for such students, in contrast to those exposed to only one risk. Thus, more vulnerable adolescents exposed to a combination of risks find themselves in a difficult situation. Intervention programs need to be developed to make Russian schools a place where resilience can be increased.
Father Porée Aporia. A Jesuit Mentor in the Struggle with the Spirit of the Nation
Authors: Любжин Алексей
Published: December 2023

Father Charles Porée, Voltaire's teacher and lecturer in rhetoric at the Lycée Louis-le-Grand, the most prestigious secondary school in France, tried for many years to put his ethical programme into practice.  He could act by personal example, by actual teaching, by directly preaching his ideas in numerous speeches and by plays for the school theatre. Putting love for God above all, love for King and fatherland in second place, and kinship love (paternal, filial, fraternal, conjugal) below, he found no place in his hierarchy for love between a man and a woman, considering it a negative value. He proposed a broad literary programme to support his views and used school theatre for the same purpose.
Cost-effectiveness analysis of breast cancer screening by mammography in average-risk women in China
Authors: Xudong Chen
Published: December 2023

Breast cancer is the most common form of cancer among women worldwide and is often at an advanced stage when clinical diagnosis. Fortunately, mammography could increase the detection rate of early-stage breast cancer. In this study, we conducted a cost-effectiveness analysis of breast cancer screening compared with no screening for average-risk women aged 45-69 every two years in China. Parameters about screening, costs, and utilities were taken from previous studies. Compared with no screening, mammography screening cost $1566.12 more with a reduction of 0.0088 Quality-Adjusted Life Years (QALYs), which was absolutely dominated. In summary, breast cancer screening by mammography was more recommended to high-risk women rather than average-risk women in China.
Salivary Protein Quantification among Periodontitis Patients with Different Disease Severity: A Pilot Study
Authors:   Department of Family Oral Health, Faculty of Dentistry, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia.
Published: December 2023

The salivary protein quantification reflecting the periodontal pathophysiology among patients with different periodontitis severity has not been well explored. This quantification is fundamental as the changes in the quantity of proteins in different severities of periodontitis can reflect the periodontal complex alterations. This pilot study aimed to quantify and compare the salivary proteins by collecting unstimulated saliva from periodontitis patients and healthy individuals. The radioimmunoprecipitation assay (RIPA) protocol was used to extract protein from patients’ saliva and quantified using the Nanodrop Spectrophotometer 2000/2000c (A280) set at 280 nm wavelength. The mean concentration of salivary proteins was shown to be 26.48 + 2.95 mg/mL in healthy patients, 22.00 + 0.38 mg/mL in Stage 1 periodontitis patients, 27.34 + 1.61 mg/mL in Stage 2 periodontitis patients, 27.11 + 0.66 mg/mL in Stage 3 periodontitis patients and 24.89 + 1.91 mg/mL in Stage 4 periodontitis patients. However, the mean difference between all groups was not statistically significant. Within the limitations of this study, there was no difference in the salivary protein quantity among patients with different stages of periodontitis.