bluuebunny/crossref_metadata_2025 huggingface dataset:
CFD SIMULATIONS OF OIL IMMERSED AND DRY TYPE TRANSFORMERS
Authors: Ralf Wittmaack
Published: July 2022

At Siemens the in-house CFD code UniFlow is employed to investigate fluid flow and heat transfer in oil immersed and dry type transformers as well as transformer components like windings, cores, tank walls, and radiators. We outline its physical models and numerical solution methods. As an oil transformer application of the method, the simulation of oil flow and heat transfer in 5 windings of a prototype transformer with ONAN/ONAF cooling mode is described. It corresponds to a heat run test with the total losses. Furthermore, we outline an application to an AFWF cast resin transformer prototype operated at ships in an enclosure. The ventilator driven air flow is cooled by sea water. In addition to the LV and HV windings the core is simulated. Here also the heat radiation makes a significant contribution to the heat transfer.
DEVELOPMENT OF A PROGRAM FOR THE DETERMINATION OF THE TEMPERATURE AT TRANSFORMERS COPPER BUS BARS BY CALCULATING THEIR DIMENSIONLESS NUMBERS
Authors: Wilerson Calil  , Vinicius Rubio  , Jorge Inhasz
Published: July 2022

The present technical study aims to demonstrate how to make the determination of the temperature at Transformers Copper Bus Bars by calculating their dimensionless numbers its will explain about the development of a thermal software that represents a viable and cost-effective to dimensioning the transformers Bus Bars due the temperature rise generate by the current. In this environment, the program is basically a virtual lab where is only necessary the cost of specialized engineering analysis and the critical time analysis. This program allows to be done a large number of tests with different types of Bus Bars and different positions of this Bus Bars with the main objective of loss and temperature reduction, material and final cost of the equipment it can also be used to avoid a possible re-work, non-acceptance or disapproval in heating tests, improving the overall performance of the equipment. To find the temperature at the Bus Bar was necessary to calculate the losses at the Bus Bars and the dimensionless numbers of Prandtl which is the ratio of momentum diffusivity (kinematic viscosity) to thermal diffusivity, Grashof which is a dimensionless number in fluid dynamics and heat transfer which approximates the ratio of the buoyancy to viscous force acting on a fluid, Rayleigh which is associated with buoyancy driven flow (also known as free convection or natural convection) and is the product of the Grashof number and the Prandtl number also and finally Nusselt which is the ratio of convective to conductive heat transfer across (normal to) the boundary. The conductive component is measured under the same conditions as the heat convection but with a (hypothetically) stagnant (or motionless) fluid. All dimensionless numbers were considered for natural convection. To do this calculation an analytical program using Visual Basic at MSExcel was created. To find this temperature some variables are dependent. In that case, this variables need to be fixed after the first temperature found at copper Bus Bars. Some iterations must be done using the program starting from this first temperature to find the correct final temperature. After this procedure is possible to determinate the temperature considering the paper layer of the copper Bus Bars when it exists. The measured results show the reliability of the proposed model by calculating the dimensionless numbers for the determination of the temperature at Transformers copper Bus Bars.
A Potential Analysis of 10 Types of Carbon Sources for Amylase Production From Aspergillus sp. LBKURCC304
Authors: Devy Silvera
Published: July 2022

Produksi amilase dari Aspergillus sp LBKURCC304 dalam medium cair selama 11 hari pada suhu 50 oC dengan pati sebagai sumber karbon (Merck: KGaA), menghasilkan ekstrak kasar amilase dengan aktivitas yang relatif rendah yaitu 0,0302±0,0041 U/mL. Aktivitas amilase ini dapat dioptimalkan dan salah satu caranya adalah dengan menggantikan sumber karbon, oleh karena itu perlu dilakukan analisis potensi 10 jenis sumber karbon lainnya, antara lain pati singkong, jagung, talas, ubi jalar ungu, kentang, sukun, ganyong, gembili, gadung dan sagu. Aktivitas ekstrak kasar amilase yang dihasilkan ditentukan dengan metode Nelson-Semogyi dan kadar protein dengan metode Lowry. Data aktivitas amilase dan kandungan protein diuji secara statistik menggunakan metode Duncan's Multiple Range Test (DMNRT) pada taraf signifikansi 5%. Hasil penelitian ini menunjukkan bahwa media produksi cair dengan sumber karbon pati sagu berpotensi untuk dimanfaatkan untuk produksi amilase dari Aspergillus sp. LBKURCC304, karena menghasilkan aktivitas amilase tertinggi yaitu 0,0391±0,0017 U/mL dengan kandungan protein 0,4471±0,0115 mg/mL. Aktivitas amilase ini 129% lebih besar dibandingkan aktivitas amilase dengan pati sebagai sumber karbon. Kandungan protein tertinggi terdapat pada sumber karbon tanaman ganyong yaitu 0,7651±0,0096 mg/mL.
S HIGIENE SANITASI TERHADAP KEBERADAAN VEKTOR TIKUS DI RT. 02 RW.03 KECAMATAN BANTAN KABUPATEN BENGKALIS TAHUN 2021
Authors: Wahyuni Denai
Published: July 2022

Vektor tikus merupakan salah satu famili hewan pengerat dari ordo Rdentia, merupakan hewan vetebrata yang dapat menimbulkan kerugian dan dampak dalam bidang kesehatan,  merusak barang dan perabotan, merusak bahan pangan, sehingga di perlukan pengendalian dan pencegahan vektor tikus. Penelitian ini bertujuan untuk mengetahui higiene sanitasi terhadap keberadaan vektor tikus di RT 02 RW. 03 Kecamatan Bantan Kabupaten Bengkalis Tahun 2021. Jenis Penelitian ini adalah penelitian deskriptif  kualitatif dengan  metode wawancara mendalam dan observasi, informan peneliti yaitu informan kunci, utama, dan pendukung yang menjadi objek wawancara mendalam untuk mendapatkan informasi higiene sanitasi terhadaap keberadaan vektor tikus  penelitian ini di lakukan pada bulan Juni Tahun 2021. hasil penelitian didapatkan  ventilasi kurang memadai/kurangnya ruang udara, tempat sampah tidak memiliki tutup, saluran pembuangan air limbah tidak kedap air, dan adanya jejak kotoran tikus di rumah. disarankan agar warga RT.02 RW. 03 menjaga higiene sanitasi mengingat kondisi lingkungan yang sangat berpengaruh dengan kesehatan saat ini di RT 02 RW. 03 Kecamatan Bantan Kabupaten Bengkalis
PEMBUATAN LARVASIDA DARI DAUN JERUK NIPIS (Citrus Aurantifolia) SEBAGAI PENGGANTI BUBUK ABATE
Authors: Boekosoe Lintje
Published: July 2022

Pada kesempatan ini kami mengusulkan suatu bentuk pengabdian kepada masyarakat berupa Pembuatan Larvasida dari Daun Jeruk Nipis (Citrus Aurantifolia) sebagai Pengganti Bubuk Abate.Tujuan dari kegiatan ini yaitu menjadikan masyarakat lebih aktif dalam upaya pencegahan penyakit demam berdarah, melalui pemberdayaan masyarakat dengan pemanfaatan tumbuhan yang ada disekitar tempat tinggal mereka. Kegiatan ini diikuti  oleh  30  orang mahasiswa sebagai peserta KKS dengan waktu pelaksanaan selama 2 bulan. Kegiatan pengabdian dilaksanakan di Desa Hiyalooyile Kecamatan Anggrek.Metode yang digunakan yaitu pelatihan dengan melatih masyarakat memanfaatkan daun jeruk nipis menjadi suatu produk yang sangat bermanfaat bagi masyarakat itu sendiri. Masyarakat diberikan pengetahuan tentang pentingnya membersihkan lingkungan tempat tinggal mereka Kegiatan ini mendapat respon baik dari pemerintah setempat dan khususnya masyarakat setempat, sehingga kegiatan ini dapat berjalan dengan lancar. Pelaksanaan kegiatan ini dilakukan di setiap dusun dengan waktu yang telah ditentukan. Kata Kunci : Larvasida; Daun Jeruk Nipis; Abate
PELATIHAN PENYUSUNAN MENU PADA SANTRI PESANTREN DARUL QURAN AL-KARIM
Authors: Putri Widya Ayu kurnia , Zaki Ibnu
Published: July 2022

Penyelenggaraan makanan merupakan suatu rangkaian kegiatan mulai dari perencanaan menu sampai dengan pendistribusian makanan kepada konsumen dalam rangka pemenuhan kebutuhan pangan. Pondok pesantren merupakan jenis pendidikan yang memiliki kurikulum dimana para peserta didik harus tinggal menetap. Pengelolaan makanan dilakukan oleh santri. Masalah muncul terkait pengadaan makanan di Pondok. Santri kesulitan karena keterbatasan pada anggaran dan referensi pengelolaan makanan. Kegiatan ini bertujuan untuk meningkatkan pengetahuan terkait gizi dan pendampingan penyusunan menu. Kegiatan dilaksanakan di Pondok Pesantren Darul Quran Al-Karim Kabupaten Banyumas tahun 2021. Jumlah sasaran 26 orang. Metode yang digunakan dalam pengabdian ini adalah pelatihan dengan model pembelajaran Project Base Learning. Hasil Pre-post test menunjukan peningkatan skor dari 4,92±0,94 menjadi 7,00±0,98 setelah pelatihan. Telah tersusun siklus menu lima hari oleh Santri. Kata kunci: Menu, Pelatihan, Siklus Lima Hari, Santri
PENCEGAHAN STUNTING PADA BALITA DENGAN MEMBUAT RAPORT GIZI SEBAGAI SCREENING PADA LEMBAGA PENDIDIKAN ANAK USIA DINI (PAUD)
Authors: Migang Yena Wineini , Manuntung Alfeus
Published: July 2022

Stunting adalah kondisi balita yang tinggi badan tidak sesuai dengan usia, menyebabkan morbiditas dan mortalitas. Berdasarkan data Kemenkes RI Dirjen Kesmas, Direktorat Gizi, Kalimantan pada tahun 2015 persentase stunting usia 0-59 bulan sebanyak  (38,4%) tahun 2016 (34,1%) tahun 2017 (39,0%),  tahun 2018 (34%) dan tahun 2019 (32,20%) hal ini masih jauh dari target  RPJM tahun 2020-2024 (19%). Laporan Dinkes Kota Palangka Raya tahun 2018 persentase stunting pada balita 14,83%. Di kota Palangka Raya, walaupun tidak menjadi target nasional untuk percepatan penurunan stunting, namun masih adanya ditemukan balita stunting perlu upaya pencegahan agar tidak terjadi loncakan. Kegiatan pengabdian masyarakat ini berupa workshop pelatihan membuat raport untuk pemantauan status gizi anak usia pra sekolah. Buku raport status gizi siswa ini, di dalamnya terdapat hasil pengukuran status gizi (tinggi badan, berat badan, usia, status gizi TB/U, status gizi PB/U dan BB/TB serta grafik antropometri), terdapat pula lembar konseling orangtua, daftar menu makanan anak dan informasi yang diperlukan oleh orangtua sebagai pengetahuan tentang pencegahan stunting pada balita. Metode pelaksanaan dalam bentuk workshop dan focus group discussion. Subyek kegiatan adalah guru PAUD sebanyak 5 (lima) orang, dilaksanakan pada tahun 2019. Setelah dilakukan kegiatan, terjadi peningkatan pengetahuan peserta tentang pengukuran antropometri dan pertumbuhan balita. Di akhir kegiatan output yang dicapai adalah tercetak raport status gizi siswa, yang digunakan oleh sekolah saat akhir semester sebagai upaya pencegahan dan  pemantauan secara berlanjut pada status gizi balita terutama pada masa usia pra sekolah. Kata Kunci: Stunting; Raport; Status gizi; PAUD
Primary Mucinous Carcinoma Scalp: A Rare Case Report With Review of Literature
Authors: Bhatnagar Dr. Avni , Khare Dr. Pratima
Published: July 2022

Primary mucinous adenocarcinoma of scalp is a rare malignant neoplasm with predilection to head and neck area. This tumor mostly occurs in sixth or seventh decade with tendency of local recurrence. The distant metastasis is rarely seen. It is essential to differentiate the primary neoplasms from metastatic neoplasm arising from breast, gastrointestinal tract and other organs because the prognosis and management differs drastically. We present a case report of a 43-year-old female with swelling in scalp diagnosed as primary mucinous carcinoma, without any systemic dissemination. We review the literature about primary and metastatic mucinous neoplasms in order to better understand, identify and manage this entity.
Probing Cold Gas in a Massive, Compact Star-forming Galaxy at z = 6
Authors: Zavala Jorge A. , Casey Caitlin M. , Spilker Justin , Tadaki Ken-ichi , Tsujita Akiyoshi , Champagne Jaclyn , Iono Daisuke , Kohno Kotaro , Manning Sinclaire , Montaña Alfredo
Published: July 2022

Observations of low-order 12C16O transitions represent the most direct way to study galaxies’ cold molecular gas, the fuel of star formation. Here we present the first detection of CO(J = 2 → 1) in a galaxy lying on the main-sequence of star-forming galaxies at z > 6. Our target, G09-83808 at z = 6.03, has a short depletion timescale of τ
dep ≈ 50 Myr and a relatively low gas fraction of M
gas/M
⋆ ≈ 0.30 that contrasts with those measured for lower-redshift main-sequence galaxies. We conclude that this galaxy is undergoing a starburst episode with a high star formation efficiency that might be the result of gas compression within its compact rotating disk. Its starburst-like nature is further supported by its high star formation rate surface density, thus favoring the use of the Kennicutt–Schmidt relation as a more precise diagnostic diagram. Without further significant gas accretion, this galaxy would become a compact, massive quiescent galaxy at z ∼ 5.5. In addition, we find that the calibration for estimating interstellar medium masses from dust continuum emission satisfactorily reproduces the gas mass derived from the CO(2 → 1) transition (within a factor of ∼2). This is in line with previous studies claiming a small redshift evolution in the gas-to-dust ratio of massive, metal-rich galaxies. In the absence of gravitational amplification, this detection would have required of order 1000 hr of observing time. The detection of cold molecular gas in unlensed star-forming galaxies at high redshifts is thus prohibitive with current facilities and requires a tenfold improvement in sensitivity, such as that envisaged for the Next-Generation Very Large Array .
Implicit Likelihood Inference of Reionization Parameters from the 21 cm Power Spectrum
Authors: Zhao Xiaosheng , Mao Yi , Wandelt Benjamin D.
Published: July 2022

The first measurements of the 21 cm brightness temperature power spectrum from the epoch of reionization will very likely be achieved in the near future by radio interferometric array experiments such as the Hydrogen Epoch of Reionization Array (HERA) and the Square Kilometre Array (SKA). Standard MCMC analyses use an explicit likelihood approximation to infer the reionization parameters from the 21 cm power spectrum. In this paper, we present a new Bayesian inference of the reionization parameters where the likelihood is implicitly defined through forward simulations using density estimation likelihood-free inference (DELFI). Realistic effects, including thermal noise and foreground avoidance, are also applied to the mock observations from the HERA and SKA. We demonstrate that this method recovers accurate posterior distributions for the reionization parameters, and it outperforms the standard MCMC analysis in terms of the location and size of credible parameter regions. With the minute-level processing time once the network is trained, this technique is a promising approach for the scientific interpretation of future 21 cm power spectrum observation data. Our code 21cmDELFI-PS is publicly available at this link (https://github.com/Xiaosheng-Zhao/21cmDELFI).
Large-scale Hydrodynamical Shocks as the Smoking-gun Evidence for a Bar in M31
Authors: Feng Zi-Xuan , Li Zhi , Shen Juntai , Gerhard Ortwin , Saglia R. P. , Blaña Matias
Published: July 2022

The formation and evolutionary history of M31 are closely related to its dynamical structures, which remain unclear due to its high inclination. Gas kinematics could provide crucial evidence for the existence of a rotating bar in M31. Using the position–velocity diagram of [O III] and H i, we are able to identify clear sharp velocity jump (shock) features with a typical amplitude over 100 km s−1 in the central region of M31 (4.6 kpc × 2.3 kpc, or

20
′
×
10
′

). We also simulate gas morphology and kinematics in barred M31 potentials and find that the bar-induced shocks can produce velocity jumps similar to those in [O III]. The identified shock features in both [O III] and H i are broadly consistent, and they are found mainly on the leading sides of the bar/bulge, following a hallmark pattern expected from the bar-driven gas inflow. Shock features on the far side of the disk are clearer than those on the near side, possibly due to limited data coverage on the near side, as well as to obscuration by the warped gas and dust layers. Further hydrodynamical simulations with more sophisticated physics are desired to fully understand the observed gas features and to better constrain the parameters of the bar in M31.
Two new species of Craterellus (Cantharellales, Hydnaceae) with veined hymenophore from north-eastern China
Authors: Zhao Gui-Ping , Hu Jia-Jun , Tuo Yong-Lan , Li Yu , Zhang Bo
Published: July 2022

In this contribution to the genus Craterellus in northern China, two new species are introduced: Craterellus connatus and C. striatus. These species and C. atrobrunneolus, initially described in south-western China, are highly similar and closely related. The species delimitation is molecularly supported by multigene phylogenetic analysis of the nr LSU and tef-1α region. Craterellus connatus is characterised by its medium-sized basidiomata, greyish-brown and smooth pileus with an off-white margin, the hymenophore with a strongly anastomosing vein, turning khaki upon drying, connate stipe, broad ellipsoid to ellipsoid basidiospores (6.1–7.8 × 4.8–5.9 μm), slender basidia with (2)4–6 sterigmata and the absence of clamp connection. Craterellus striatus is characterised by its small-sized basidiomata, fibrillose, greyish-brown to yellowish-brown, fully perforated pileus with a brown fringe, the hymenophore with a forking vein, the stipe inflated at the base, broad ellipsoid to ellipsoid basidiospores (6.8–8.0 × 5.1–6.0 μm), 2–6 spored basidia, encrusted hyphae and the absence of clamp connection. Detailed macroscopic and microscopic descriptions, accompanied by illustrations and a taxonomic discussion, are presented. A key to the Chinese Craterellus species is also provided.
Influence of chemical structure and mechanism of hydrolysis on pharmacological activity and toxicological profile of approved platinum drugs
Authors: Obreshkova Danka , Ivanova Stefka , Yordanova-Laleva Pavlina
Published: July 2022

The problems with platinum complexes are resistance and toxicity of anticancer therapy. The aim of current study is the comparison of the influence of chemical structure and mechanism of hydrolysis on pharmacological activity and toxicological profile of approved in platinum drugs: Cisplatin, Carboplatin, Oxaliplatin, Nedaplatin, Lobaplatin, Heptaplatin, Satraplatin. Hydrolysis of Carboplatin and Nedaplatin occurs by double step hydration, to obtain the same active products as with Cisplatin: diaqudiamine-platinum. The similarity in mechanisms of hydrolysis of Oxaliplatin, Lobaplatin Heptaplatin, and Satraplatin is that the first part of the hydrolysis corresponds to the ring-opening and addition of the first water molecule, and in the second step of reaction occur the loss of the ligand and the formation of the di-aquated product by the addition of a second water molecule. Cisplatin, Carboplatin, and Oxaliplatin are nephrotoxic. Cisplatin and Heptaplatin are nephrotoxic. The similar dose-limiting effects of Carboplatin, Oxaliplatin, Nedaplatin, Lobaplatin, and Satraplatin is myelosuppression.
A new species of toothless, short dorsal-fin Schindleria (Gobiiformes: Gobiidae) from the Red Sea (Egypt)
Authors: Ahnelt Harald , Robitzch Vanessa , El-Regal Mohamed Abu
Published: July 2022

Abstract

We describe a new, tiny species of Schindleria from a reef lagoon in the Red Sea off the coast of Hurghada, Egypt. Schindleria edentata, new species, belongs to the short dorsal-fin type of Schindleria, with the dorsal and anal fins of about equal length. Schindleria edentata is characterized by an elongated but relatively deep body (body depth at anal-fin origin 10.8% of SL and at 4th anal-fin ray 10.9 % of SL); a short dorsal fin originating just slightly anterior to the anal fin (predorsal-fin length 60.9% of SL, pre-anal fin length 64.8% of SL); a stubby head with a steep frontal profile, a short snout (i.e., 23.1% of head length), and large eye (i.e., 27.7% of the head’s length); a long pectoral radial plate (length 7.6% of SL); four dorsal and four ventral procurrent caudal-fin rays increasing in length posteriorly; last procurrent ray simple without additional spine and, although the longest, not distinctly elongate; 15 dorsal-fin rays; 13 anal-fin rays; the base of the first anal-fin ray positioned below the base of the third dorsal-fin ray; upper and lower jaws toothless; in vivo with translucent body; eye black; swim bladder capped by a melanophore blotch; no pigmentation externally on body after preservation.
La politique d’alliance russe à l’épreuve des limites du « multivectorisme »
Authors: Vassil Karan
Published: July 2022

Reflétant le renouvellement des sociabilités interétatiques de la période de l’après-guerre froide et revendiqué par la Russie comme un outil privilégié de sa politique étrangère, le « multivectorisme » renvoie à une variété de formes de coopérations qui se déploie selon une géographie spécifique et des objectifs stratégiques et sécuritaires précis. Les partenariats stratégiques, développés avec les pays d’Asie, d’Afrique et du Moyen-Orient sont un instrument privilégié du retour en force de la Russie sur la scène internationale.
La politique d’alliance de la Turquie : de l’alignement sur l’Occident à la recherche de l’autonomie stratégique
Authors: Sémon Adrien
Published: July 2022

Ayant intégré l’Otan en 1952, la Turquie déploie au sortir de la guerre froide une politique extérieure très alignée sur celle des États-Unis. La modification du paysage stratégique favorise néanmoins l’émergence de clivages politiques poussant la Turquie à adopter un positionnement plus distant vis-à-vis des capitales occidentales, privilégiant ses intérêts nationaux. Son engagement au sein de l’Alliance revêt alors l’aspect d’un marchandage, voire semble remis en question par l’activisme politique tous azimuts déployé par le Président turc ces dernières années et bien souvent à l’encontre des intérêts occidentaux.
Les discours de fin du monde dans l’histoire
Authors: Couveinhes Pierre
Published: July 2022

Indépendamment des justifications scientifiques qui la fondent, la « longue urgence » s’inscrit dans l’interminable liste des discours de fin du monde élaborés par l’humanité tout au long de son histoire. Qu’ils soient d’origine religieuse, philosophique ou scientifique, ou figurent dans des œuvres de la littérature ou du cinéma, ces discours présentent souvent des traits communs et peuvent être analysés suivant quelques catégories. Certains thèmes, essentiels à certaines époques, semblent disparaître pendant plusieurs siècles, avant de réapparaître sous une forme analogue. L’objet de cet article est de comparer quelques-uns de ces discours en tentant de répondre à ces trois questions : Qu’entend-on exactement par « fin du monde » ? Cette fin du monde est-elle définitive ? Quelles en sont les causes et les modalités ?
Hollywood et la crise bioclimatique : de Soleil vert à Dune
Authors: Valantin Jean-Michel
Published: July 2022

C’est après la Seconde Guerre mondiale et la Guerre froide que le cinéma américain s’approprie les enjeux liés à la sécurité nationale. Depuis les années 1950, ce processus prend également en compte les risques associés aux changements environnementaux. Mais, depuis le début des années 2000, à mesure que les risques socio-environnementaux montent en puissance et sont pris en compte dans le cadre de la sécurité nationale, ces thèmes commencent à dominer le cinéma, qui les popularise. Par ailleurs, les enjeux liés à la « longue urgence » deviennent centraux dans l’univers des séries télévisuelles. Il en résulte une montée en puissance de l’association des enjeux sécuritaires avec ceux bioclimatiques à Hollywood.
Les professionnels du médico-social en déplacement : enjeux de disponibilité et de construction partenariale à partir de deux équipes mobiles régionales
Authors: Sempé Mathilde , Siffert Isabelle
Published: July 2022

Au croisement de deux recherches doctorales, cet article propose une réflexion sur la mise en mobilité des personnels médicaux et sociaux auprès des personnes en situation de précarité. Alors que la mobilité des personnes sans domicile a fait l’objet de nombreuses recherches (parcours d’hébergement, circulation entre rue et hébergement), la mobilité des intervenants médicaux et sociaux a bien moins été décrite. Nous interrogeons ici la mobilité comme condition de travail et configuration matérielle et territoriale de l’accompagnement médico-social. À partir de l’étude de deux équipes mobiles intervenant dans des hébergements sociaux en région francilienne, nous analysons comment la mobilité participe à entretenir des logiques d’urgence et à créer de l’indisponibilité dans l’accompagnement médico-social. D’autre part, nous montrons comment la mobilité dans un contexte d’intervention régionale complexifie la construction d’un réseau partenarial local et influence les logiques d’orientations.
La « transition énergétique », de l’utopie atomique au déni climatique : États-Unis, 1945-1980
Authors: Fressoz Jean-Baptiste
Published: July 2022

Les stratégies de production d’ignorance des compagnies pétrolières ont déjà fait l’objet d’importants travaux historiques. Cet article contribue à cette question mais en décalant le regard. Il s’intéresse moins au climatoscepticisme qu’à une forme plus subtile, plus acceptable et donc beaucoup plus générale de déni du problème climatique : la futurologie de « la transition énergétique », au sein de laquelle l’histoire de l’énergie a joué un rôle fondamental. Il décrit tout d’abord l’espace intellectuel, à cheval entre utopie atomique et néomalthusianisme, au sein duquel naît l’idée de transition énergétique. Il étudie ensuite les travaux de Cesare Marchetti, un savant atomiste qui, en 1974, applique la courbe de substitution logistique (ou courbe en S) à l’analyse de l’évolution du système énergétique mondial. Il montre l’influence considérable de la modélisation logistique au sein de l’administration Carter, des lobbyistes d’Exxon ou des climatologues des années 1980. Or c’est précisément cette hypothèse qui est problématique : considérer les énergies à l’instar des techniques comme des entités distinctes et en compétition alors qu’elles entrent autant en symbiose qu’en concurrence.
Variational approach to p-Laplacian fractional differential equations with instantaneous and non-instantaneous impulses
Authors: Li Zhilin , Chen Guoping , Long Weiwei , Pan Xinyuan
Published: July 2022

In this paper, we examine the existence of solutions of p-Laplacian fractional differential equations with instantaneous and non-instantaneous impulses. New criteria guaranteeing the existence of infinitely many solutions are established for the considered problem. The problem is reduced to an equivalent form such that the weak solutions of the problem are defined as the critical points of an energy functional. The main result of the present work is established by using a variational approach and a mountain pass lemma. Finally, an example is given to illustrate our main result.
Some aspects in Noetherian modules and rings
Authors: Zeyada Nasr Anwer , Makki Makkiah S.
Published: July 2022

Many authors have focused on the concept of Noetherian rings. M. Kosan and T. Quynh recently published an article on the Noetherian ring's new properties and their relation to the direct sum of injective hulls of simple right modules and essential extensions. Throughout this article, we extend the results of M. Kosan and T. Quynh to simple singular right modules and strongly singular injectivity.
Stability of a class of nonlinear hierarchical size-structured population model
Authors: Chen Weicheng , Wang Zhanping
Published: July 2022

This paper investigates the existence of positive equilibrium as well as the stability of positive equilibrium and zero equilibrium in a nonlinear size-structured hierarchical population model. Under the condition that larger individuals are more competitive advantages than smaller ones, a non-zero fixed point theorem is used to show that there is at lest one positive equilibrium in the system. Moreover, we obtain the stability results of positive equilibrium and zero equilibrium by deriving characteristic equations and establishing Liapunov function. Finally, some numerical experiments are presented.
Assessing the impact of tropospheric ozone pollution on grain yield of mung bean [Vigna radiate (L.) R. Wilczek] using ethylenediurea: A case study in Peradeniya, Sri Lanka
Authors: Perera G. A. D. , Wijesooriya S. M. , Gunarathne R. M. U. K. , Emberson L. , Büker P.
Published: July 2022

Tropospheric ozone (O3) is well known to reducing the yield of ozone-sensitive crop varieties. The present study aimed to detect the impact of O3 pollution in Peradeniya, Sri Lanka on the grain yield of a local variety of mung bean [Vigna radiata (L.) R. Wilczek], using the antiozonant ethylenediurea (EDU) protocol. Mung bean plants grown in pots were exposed to ambient O3 and O3 free conditions (by adding recommended doses of EDU) in a complete randomized experimental design. Ozone sensitivity was assessed by recording the number of pods and seeds, the dry weight of pods and seeds and the shoot dry weight. The same experiment was repeated on the same site to verify the results. Tropospheric O3 concentration, daily rainfall, relative humidity (RH) and air temperature in the study location were recorded for the both study periods. The tested local mung bean variety appears to be sensitive to ambient O3 levels. Further, the O3 impact on crop yield loss appeared to be varying with the prevailing climatic conditions, especially the distribution of rainfall. Under rather dry climatic conditions that occurred towards the flowering and fruiting periods seemed causing a reduction in the number of pods and seeds of the crop with a yield loss of about 21%. This study further proved that the EDU protocol can be used to demonstrate yield loss of mung bean due to O3 pollution. As O3 impacts are better envisaged under dry climatic conditions, we suggest using the EDU protocol to identify O3 pollution in dry agro-climatic regions of the intermediate and dry zones of the country and to detect O3 sensitive crop species that grow in these dry regions.
Dosimetric Comparison Study of Three Dimensional Conformal Radiotherapy (3DCRT) Versus Different Intensity Modulated Radiotherapy (IMRT) Techniques in Prostate Cancer Treatment
Authors: Dahanayake D. N. , Jayasugiththan Jayasingam , Kumara K. V. Athula , Sarasanandarajah Sivananthan
Published: July 2022

IMRT is a well-known and widely used treatment technique for carcinoma of the prostate (PCa) because it permits dose escalation to the tumour while sparing normal tissues. In Sri Lanka, along with IMRT, the 3DCRT technique is also used in the treatment of PCa. This study was carried out to compare 3DCRT treatment against Simultaneous- Integrated Boost Intensity Modulated Radiation Therapy (SIB-IMRT), Sequential IMRT, and Standard IMRT using dosimetric parameters such as Planning Target Volume (PTV) coverage by prescribed dose, Conformity Index (CI), Homogeneity Index (HI), percentage of maximum, minimum and mean dose to PTV and dose to 50% volume (D50) of the rectum, bladder, and femoral heads. Thirty-one PC a patients’ treatment plans were included in the study. For evaluation purposes, the Dose-volume Histograms (DVHs) were compared in all techniques. The D50 to femoral heads showed a significant difference (p < 0.05) in the 3DCRT technique against all IMRT techniques as the dose to femoral heads was significantly greater in 3DCRT therapy in many patients. SIB-IMRT showed a significantly higher PTV coverage and dose conformity in PTV than 3DCRT while the Sequential IMRT technique showed a greater homogeneity in PTV and critical organ sparing to 3DCRT technique. However, when considering other dosimetric parameters, there was no significant difference between 3DCRT and IMRT.
Factors Impacting on Customer Promotion Acceptance in the Fast Food Industry in Sri Lanka
Authors: Jiffry Sahdi , Adithya Tharushi , Wasundi Vinodya , Sakkaf Suhail , Thelijjagoda Samantha , Kumarasinghe Hashani
Published: July 2022

Fast food chains in Sri Lanka are a recently emerging industry which makes revolutionary transmutations within the frequent consumer patterns. The purpose of this research is to point out the factors which influence the consumers’ acceptance of promotions made by fast food restaurants. A total of 384 questionnaires were conveniently distributed among teenagers, youngsters, professionals and middle-aged consumers in the Colombo suburb via online platforms and physical modes. Data analysis was done using SPSS Version 26. The relationship between variables and their impact were identified by correlation and regression respectively. According to frequency distribution analysis the consumers in the age group of 25 to 35 are mostly interested in accepting promotion messages through SMS and Facebook. Further, out of respective promotion categories buy one get one free is the most outstanding promotion type among consumers. The study observed price, income, attitude and promotional deals as the significant factors for the acceptance of promotion. Also results revealed that price, attitude and promotional deals had a highly positive correlation with promotion acceptance rather than income. Due to the time constraint and Covid-19 pandemic, respective respondents were selected only from the Colombo region. The paper provides useful information and new insights for potential marketers and academicians about the factors to be considered in customer promotion message acceptance in the fast food industry.
Maritime Search and Rescue Operations of Sri Lanka: Air Diplomacy Framework and Way Forward
Authors: Wijetunge M. A. D. C. K.
Published: July 2022

The term air diplomacy first came into the limelight in the first half of the 20th century amidst the advent of air power. Air diplomacy is the employment of air power elements in support of the foreign policy of a country. The study explored how an air diplomacy framework could be incorporated into the air strategy to strengthen Maritime Search and Rescue (MSAR) engagements in Sri Lanka, which in turn would benefit in bolstering the tangible and non-tangible capabilities of the Sri Lanka Air Force (SLAF). The contemporary world has seen that regional/global air forces have been attempting to leverage air power in quest of protecting national interests and human capital beyond its seashores. However, it is observed that Sri Lanka has not been exploiting the air diplomacy to the fullest extent as done by other regional counterparts. The SLAF being the only air arm capable of providing aircraft assistance to air crash Search and Rescue (SAR) operations in Sri Lanka has a unique role to play whilst bearing a huge responsibility in aircraft Search and Rescue operations within the Colombo Search and Rescue Region (SRR). Thus, it is imperative to fill the critical gap between existing capabilities/capacities and structure of MSAR units within SLAF and integration with external maritime agencies locally/regionally to facilitate effective MSAR services within the SRR. Hence, the researcher has derived the conceptual framework on a par with the study objectives, which enables the finding of dependent and independent variables. This exploratory study resorts to the inductive approach and interpretivist research philosophy while conducted as a qualitative research. Eventually, the researcher developed an air diplomacy framework that could schematically be embedded into SLAF's air strategy. The study results indicated the development of a joint maritime-air architecture through an integrated system comprising all aerial and maritime stakeholders. Hence as a remedy smart, stretched refleeting of assets, formulation of joint/combined maritime-air command structure, multinational cooperation and conduct of joint training are recommended to address challenges pertaining to conducting effective and efficient MSAR operations in the future.
The Combination of Decaffeinated Coffee (Coffea canephora) and Green Tea (Camellia sinensis) Reduced PSGL-1 Glycosylation by GALNT2 in Ox-LDL-induced RAW 264.7
Authors: Mohammad Saifur Rohman , Lintang Widya Sishartami , Nashi Widodo , Ermin Rachmawati , Mifetika Lukitasari
Published: July 2022

Context:

Coffee and green tea extract combination is expected to reduce macrophage migration.

Aims:

We investigated the effects of combination of coffee and green tea extracts on GALNT2 gene expression and PSGL-1 protein expression in Ox-LDL-induced RAW 264.7 cells.

Materials and methods:

RAW 264.7 cells were treated with a combination of coffee and green tea extracts with three different doses for 24 hours (coffee 80 μg/mL + green tea 80 μg/mL; coffee 160 μg/mL + green tea 160 μg/mL; coffee 320 μg/mL + green tea 320 μg/mL), respectively. Then, cells stimulated with 8 μg/mL Ox-LDL for 20 hours. GALNT2 mRNA expression was analyzed by reverse transcription polymerase chain reaction and western blot for PSGL-1 protein expression.

Results:

GALNT2 gene expression and PSGL-1 protein expression decreased significantly (P < 0.05) with treatment by combination of coffee and green tea extracts in dose-dependent manner.

Conclusion:

Coffee and green tea extract combination administration significantly reduced GALNT2 gene expression and PSGL-1 protein expression in Ox-LDL-induced RAW 264.7 cells.
Correlation of skeletal muscle depletion with acute toxicities for cervical cancer patients undergoing concurrent chemoradiation
Authors: Kumar Sampuran Acharya , Gururajachar Manur Janaki , Martin Vinay Prabhu
Published: July 2022

Context:

Pelvic radiation with concurrent chemotherapy is associated with toxicities that worsen the cachectic state of the patient.

Aims:

The aim of this study is to quantify skeletal muscle changes on computed tomography (CT) images helps in assessing the same which could be correlated with the toxicities.

Settings and Design:

The study design was s prospective study.

Subjects and Methods:

Forty-one patients were treated with chemoradiation followed by brachytherapy (BT) for cervical cancer. Preexternal beam and preBT CT scans were used to assess skeletal muscle index (SMI). The changes in the SMI were correlated with enteritis, dyselectrolytemia, and hematological toxicities.

Statistical Analysis Used:

Paired t-test was used to compare pre- and post-treatment SMI. Chi-square test would be used to study the association between toxicity and SMI change.

Results:

The mean SMI was 57.41 cm2/m2 (42.5–73) in the preexternal beam radiotherapy (EBRT) scans and 54.5 cm2/m2 (40.9–71.07) in the post-EBRT scans. Twenty-two patients (53.7%), 14 patients (34.1%), and five patients (12.2%) belonged to <5%, 5%–10%, and >10% loss in SMI groups, respectively. Grade III enteritis was seen in 31.7% of the patients, hyponatremia in 26.8% of the patients in the 4th week, and leukopenia and neutropenia were seen in 26.8% of cases in the 5th week. Enteritis correlated significantly with the change in SMI (P = 0.047).

Conclusion:

Patients with cancer cachexia are at higher risk for radiation enteritis during chemoradiation for cervical cancer.
Autoreconstruction of the tongue in case of extensive verrucous carcinoma
Authors: Singh Akhilesh Kumar , Mishra Nitesh , Pandey Arun , Kumar Janani Anand
Published: July 2022

Tongue reconstruction can be simple to complex depending on the size of the defect. Reconstruction of medium-to-large size defect is technically demanding to achieve better esthetic and functional outcome. There are various options in the reconstruction of tongue defect when it comes to the type of flap. Any type of flap has its own advantages and disadvantages. Local flaps seem to be the best option, as it avoids secondary donor site morbidity and has similar tissue characteristics as native tissue, therefore provides better esthetic and functional results. This case report illustrates a case of tongue reconstruction that was performed with the help of tongue base island flap after wide local excision of verrucous carcinoma, which provided us with excellent results.
Efficacy of palonosetron in the management of postoperative nausea vomiting in oral and maxillofacial surgery
Authors: Rapolu Keerthi , Uppada Uday Kiran , Sinha Ramen , Subramanya Kumar A. V. S. S.
Published: July 2022

Objective:

The objective is to evaluate the efficacy of prophylactic single intravenous dose of palonosetron in the management of postoperative nausea and vomiting (PONV) following oral and maxillofacial surgical interventions performed through an intraoral approach under general anesthesia (GA).

Materials and Methods:

A prospective study was conducted on 100 subjects who underwent intraoral surgical procedures for the management of maxillofacial trauma, pathology, dentofacial anomalies, and deformities under GA. All subjects received a prophylactic single intravenous dose of 0.075 mg palonosetron along with premedication. Predisposing factors for PONV such as patient age, gender, Apfel risk score, history of motion sickness, smoking, type of procedure, and administration of postoperative opioids were taken into consideration. All the patients were monitored for PONV for the 1st 24 h postoperatively (PO). First, at an interval of 30 min for 1st 4 h and then at every 2 h interval for next 8 h followed by monitoring every 6 h interval till 24 h. Time and frequency of rescue medication were noted.

Results:

Seventy-nine percentage subjects did not have PONV. 15% subjects had a single episode of vomiting PO which could be attributed to multiple intra oral surgical sites performed as well as longer duration of exposure to anesthetic agents in addition to providing opioid analgesics for the management of postoperative pain. Only 6% subjects needed rescue antiemetic drug. Palonosetron did not show any significant changes in cardiac status and serum profile.

Conclusion:

Palonosetron is effective in the management of PONV for maxillofacial surgical procedures performed through an intraoral approach under GA.
On differential uniformity of permutations derived using a generalized construction
Authors: Fomin Denis Bonislavovich , Kovrizhnykh Mariya Antonovna
Published: July 2022

Работа посвящена теоретическому обоснованию направленного поиска 8-битовых подстановок с заданными криптографическими характеристиками: дифференциальной $\delta$-равномерностью и нелинейностью. Сформулированы и доказаны утверждения о разбиении на классы эквивалентности множества векторных булевых функций, построенных с помощью обобщенной конструкции. Обоснованы утверждения, позволяющие отбраковывать функции из классов эквивалентности либо по высокому показателю дифференциальной $\delta$-равномерности, либо вследствие того, что они не являются подстановками. Результаты работы могут быть использованы для конструирования подстановок с заданными криптографическими свойствами, обеспечивающими стойкость алгоритмов шифрования к линейному и разностному методам криптографического анализа.
Extending AES improvements: A proposal for Alpha-MAC in view of collision resistance
Authors: Penate Adrian Alfonso , Arrozarena P. F.
Published: July 2022

Alred - это конструкция кодов аутентификации сообщений, основанная на блочном шифре, ее конкретный вариант с AES в качестве базового примитива приводит к функции MAC Alpha-MAC. В работе вычисляется вероятность успеха одной из атак против Alpha-MAC, когда преобразование ShiftRows заменяется случайной перестановкой с оптимальным рассеиванием.
Format-preserving encryption: a survey
Authors: Tsaregorodtsev Kirill Denisovich
Published: July 2022

Статья содержит обзор методов шифрования, сохраняющего формат, алгоритмов, предложенных для стандартизации, а также атак на них. Описана новая схема сохраняющего формат шифрования, основанная на квазигрупповых операциях.
Challenges Encountered by the Jail Officers in Enforcing the Minimum Health Protocols
Authors: Dorato Jomyta S. , Sajorga Jay T. , Sediego Claudine L. , Sumaylo Honey Mae A. , Culanag Jr. Teopisto Y. , Cuevas Jr. Jose F.
Published: July 2022

Minimum Health Protocols can take the form of social distancing, wearing of face mask and applying proper hygiene to avoid infections and diseases. This study explored the challenges encountered by the jail officers in Misamis Occidental Provincial Reformatory Jail in Capitol Drive, Oroquieta City, Misamis Occidental. The study were participated by 10 jail officers. interview and guide questions were used in gathering the data. The study used the qualitative approach using the phenomenological design. Moustakas’ transcendental phenomenology was used in analysis the data to come up with seven meaningful theme; Suspension of visiting privilege, Strenuous implementation of health protocol, Immediate Isolation for COVID-19 Infected, High risk of Covid-19 infection, Affected Duties due to COVID-19 Infection and Quarantines, Acceptance of Being Carriers of COVID-19 Virus, and Adhering to health protocol. Encountering minimum health protocols has its various effects depending on the illnesses they experience such as the Covid-19 virus it has the huge impact to everyone.
A Five-Year Fire Incidents Data Analysis in the City of Ozamiz
Authors: N. Maligro John Reinhard
Published: July 2022

Fire incidents in any cause may lead to a devastating effect to the community or family where the fire incident happens. It is considered as an accident that could destroy properties of the family in a very short period of time. This study determined the five-year trend analysis of fire incidents in Ozamiz City using the available historical data from 2016-2021. The study employed retrospective method of research. Since it is a retrospective study, the result of interest has already occurred, and the data obtained is from records, no volunteers will be used in this study. However, the Bureau of Fire Protection Officers of Ozamiz City will offer the study's relevant data. According to the findings, electrical related fire incidents are the most common cause of fire in Ozamiz City, whereas LPG related fires are the least likely to cause fires. It is suggested that Ozamiz City's Bureau of Fire Protection hold monthly lectures or programs on fire safety and prevention in the community. Ozamiz City residents should exercise caution when leaving their homes and avoid using the octopus connection to avoid power outages. Furthermore, staff from Ozamiz City's Bureau of Fire Protection should conduct more frequent fire inspections in the city's businesses.
A Simple High-Resolution Absolute Rotary Angular Sensor with Nonlinear Transparent Disc
Authors: Yu Nam Chol , Jin Jo Myong , Kim Chol Sun
Published: July 2022

This paper has described a simple absolute rotary angular sensor with a nonlinear transparent disc. This sensor consists of five elements: light-source, a shaft coupled nonlinear transparent optical disc, a lens, a pair of light-dependent resistors (LDR) and a signal processing circuit. This absolute rotary angular sensor is of non-contact potentiometer based on a characteristic of resistance via irradiance. It has the advantage of fabricating efficiently as the disc is made with ﬁber glass and a self-adhesive tape of which transparency is nonlinearly changed in a range of 0-360◦. Also, this sensor has good linearity of R2=0.99999, good repeatability of maximum characteristic drift around ±0.10 and measurement error below ±0.50. And measurement stability is ±0.10 within its operating range from 0° to 360°.