bluuebunny/crossref_metadata_2025 huggingface dataset:
African and Rwandan Translations of the Bible
Authors: Rizzi Giovanni
Published: September 2021

The article offers a concise presentation of the project linked to the Library Fund of the Pontifical Urbaniana University, namely, to study the inculturation of the Christian faith by relating the documentation on the editions of the Bible to the catechisms in the territories entrusted to the pastoral care of the Congregation for Evangelization of peoples. The vastness of the project itself is marked today by the difficulty of using more extensive documentation than that present in the Fund of the same Library. However, more limited segments of the indicated material of interest can already be identified. More specifically, the African continent shows quite a varied phenomenology of the editions of the Bible: from translations of the Latin Vulgate into local languages, to translations from English or French, themselves translations from Latin. In the post-conciliar period, the translations of the Bible from the original biblical languages emerge. This is the case of the Kinyarwanda versions of the NT (1988, 1989) and of the OT-NT in a single volume (1990, 1992), in which, alongside pastoral purposes, the results of modern biblical exegesis are evident, to the point of proposing categorizations of literary bodies of biblical literature from an interconfessional and also interreligious perspective.
Translating Biblical Poetry as Poetry
Authors: De Regt Lénart J.
Published: September 2021

After an introduction into translating biblical poetry as a new communication event in the target culture (and not as a documentation of a source culture event), an analysis is made of a Dutch poetic translation of Psalms 23 and 121 and a Frisian poetic translation of Psalm 23. Of the poetic features and means of expression in these translations, Dutch and Frisian patterns ofmeter are the most important. When a poetic translation of biblical poetry follows genre conventions of the target language and culture (rather than attempting but failing to reproduce the poetic features of the source text), such a translation is able to generate a new, direct communication event that reduces the distance between the hearer/receiver of the target culture and the text of the source culture. Such a translation engages the hearer more effectively in responding to the text, because the poetic features of the target language facilitate the expressive, appellative and phatic functions of the communication. This should be an encouragement to translators to render different types of biblical poetry into different genres and poetic patterns of the target language that will actually fit the subject matter of the text into the context of the target culture.
Analysis of Learning and Academic Performance of Education Students Before and During the Coronavirus Disease Pandemic
Authors: Capinding Andie Tangonan
Published: September 2021

The study focused on education students' learning experiences and the differences in their activities before and during the pandemic. This research was carried out at the NEUST Gabaldon Campus during the academic year 2020-2021 vacation. A study design that combines descriptive-comparative and descriptive-correlational elements. The descriptive-comparative design was used to compare the number of hours students spent sleeping, studying, using social media, and academic performance before and during the pandemic. The descriptive-correlation design, on the other hand, was used to determine the relationship between a student's academic performance (GPA) and the number of hours spent sleeping, studying, and using social media during the pandemic. The 171 education students who participated in the study were chosen through stratified random sampling. The findings revealed that there is a significant difference in the number of hours spent sleeping, studying, and using social media before and during the pandemic. However, there is no significant difference in students' academic performance before and during the pandemic. The study also discovered a highly significant link between the number of hours spent studying and academic performance and between the number of hours spent in social media and the number of hours spent studying. Nonetheless, there is no statistically significant relationship between students' academic performance and the number of hours they sleep and the use of social media during the pandemic. In addition, there is no link between the number of hours they sleep and the amount of time they spend studying and using social media. The students agree that there are benefits and drawbacks to flexible learning. The study's theoretical and practical implications were also discussed.
Photoconversion efficiency in atomically thin TMDC-based heterostructures
Authors: Setayeshmehr Kimiya , Hashemi Mahdieh , Ansari Narges
Published: September 2021

Nowadays, two-dimensional materials such as graphene, phosphorene, and transition metal dichalcogenides (TMDCs) are widely employed in designing photovoltaic devices. Despite their atomically thin (AT) thicknesses, the high absorption of the TMDCs makes them a unique choice in designing solar absorptive heterostructures. In our exploration of finding the most efficient TMDC contacts for generating higher photocurrents, we carefully examined the physics behind the external and internal quantum efficiencies (EQEs and IQEs) of different AT heterostructures at the solar spectrum. By minute examination of the EQEs of the selected TMDC-based heterostructures, we show that the absorption of each consisting TMDC and the gradient of the electronic structure of them at their contact, determine mostly the photocurrent generation efficiency of the solar cells. The promising EQE (IQE) value of 0.5% (1.4%) is achieved in WSe2/MoSe2 contact at the wavelength of 433 nm. In the case of the multilayers of TMDCs, together with the light absorption increase of the multilayers the EQE of the heterostructures generally increases, while the competitive nature of the electronic structure gradient and the absorption makes this increase nonmonotonic. The TMDC-based heterostructures which are investigated in this work, pave a new way in designing miniaturized and efficient optoelectronic devices.
The viral nucleocapsid protein and the human RNA-binding protein Mex3A promote translation of the Andes orthohantavirus small mRNA
Authors: Vera-Otarola Jorge , Castillo-Vargas Estefania , Angulo Jenniffer , Barriga Francisco M. , Batlle Eduard , Lopez-Lastra Marcelo
Published: September 2021

The capped Small segment mRNA (SmRNA) of the Andes orthohantavirus (ANDV) lacks a poly(A) tail. In this study, we characterize the mechanism driving ANDV-SmRNA translation. Results show that the ANDV-nucleocapsid protein (ANDV-N) promotes in vitro translation from capped mRNAs without replacing eukaryotic initiation factor (eIF) 4G. Using an RNA affinity chromatography approach followed by mass spectrometry, we identify the human RNA chaperone Mex3A (hMex3A) as a SmRNA-3’UTR binding protein. Results show that hMex3A enhances SmRNA translation in a 3’UTR dependent manner, either alone or when co-expressed with the ANDV-N. The ANDV-N and hMex3A proteins do not interact in cells, but both proteins interact with eIF4G. The hMex3A–eIF4G interaction showed to be independent of ANDV-infection or ANDV-N expression. Together, our observations suggest that translation of the ANDV SmRNA is enhanced by a 5’-3’ end interaction, mediated by both viral and cellular proteins.
DECADAL MIXED LAYER SALINITY IN THE SOUTHEASTERN INDIAN OCEAN
Authors: Iskandar Mochamad Riza , Surinati Dewi
Published: September 2021

The decadal of mixed layer salinity budget in the southeastern Indian Ocean (SETIO) is evaluated by using monthly gridded reanalysis ocean dataset (Estimated State of Global Ocean for Climate Research (ESTOC)) from January 1960 to December 2014. The evaluation of salinity budget through the examination of atmospheric flux, surface advection, Ekman advection and entrainment terms. The mixed layer salinity (MLS) in the outflow of the ITF shows decadal cycle. The decadal MLS tendency follows the Ekman advection term. The other processes such as atmospheric surface flux, surface advection and entrainment terms are counterbalanced and small correlates to the salinity tendency.
Effects of F/2 media modification on growth and antioxidant activity of microalga Nannochloropsis oculata
Authors: Ghafari Mohammad Aulia , Suryaningtyas Indyaswan Tegar , Yona Defri , Sapulete Serly , Tarmin Nurhalis , Ali La , Marzuki Ramli , Pangestuti Ratih
Published: September 2021

Nannochloropsis oculata is a common microalga that can be found in marine water. One of the most commonly used media for microalga culture is F/2 media; however, the optimum F/2 media composition for N. oculata growth is rarely informed. Therefore, the aims of this study are to determine the effect of F/2 medium modification on the growth of  N. oculata and the antioxidant activity of N. oculata. This study consists of several procedures including; cultivation, growth observation (cell density and biomass), extraction, and antioxidant activity of N. oculata extracts. The highest growth (cell density and biomass) of N. oculata was found in media F/2 + 0.5 ml, while the lowest was in media F/2 - 0.5 ml. The strongest antioxidant activity of N. oculata was found in media F/2 + 1 ml, and the lowest was in the media F/2 - 0.5 ml. Media modification gave different results on cell density, biomass, and antioxidant activity of microalgae N. oculata.
Climate variability since last glacial maximum based on distribution of foraminifera in North Papua Waters, Pacific Ocean
Authors: Damanik Adrianus , Maryunani Khoiril Anwar , Nugroho Septriono Hari , Putra Purna Sulastya
Published: September 2021

Foraminifera distribution is one of the proxies used to reconstruct climatic conditions and paleoceanography. Specific species or groups of foraminifera can be associated with certain oceanographic parameters. As one of the entrances of Indonesia Through Flow (ITF), North Papua Waters has the role of channeling water masses from the Pacific Ocean to the Indonesian Waters. It is also influenced by global thermohaline circulation and ENSO. In this study, observations were made of changes in the distribution of foraminifera to reconstruct paleoclimate and paleoceanographic conditions in the North Papua Waters and their relation to global climate conditions. The analysis was performed on 246 cm core sediments with eight cm foraminifera observation intervals at sample depths 246-126 cm and four cm at sample depths of 126-0 cm. Pulleniatina spp., Neogloboquadrina spp., and Globorotalia spp., are used for radiocarbon dating. Planktonic abundant species of foraminifera are Pulleniatina obliqueloculata, Neogloboquadrina dutertrei, Globorotalia menardii, Globigerinoides ruber, Globigerinoides trilobus, and the benthonic are Melonis pompilideus, Pullenia bulloides, Oolina sp., Planulina bradyii, Oridorsalis umbonatus, Cibicides subhaidingerii, Eggrela bradyii, Planulina wuelestroffi, and Quinqueloculina spp.,. Division according to cluster analysis can show the difference between Holocene and Pleistocene, which is then more detailed divided into 17 clusters. Based on biozonation there are some events that can be observed: climate variability since Late Pleistocene, record Pleistocene-Holocene boundary based on the significant variability of foraminifera distribution, and records some of the global climate events such as Last Glacial Maximum (~19-17 kyr), Younger Dryas (~11-9 kyr), and 8,2K event.
Effect of Piper Betle Leaf Extracts on Enhancement of Memory and Learning in Rodents
Authors: Nayak Roopa Prasad , Krishna Uttara , S.R. Chaitra
Published: September 2021

BACKGROUND Medicinal plants have long been used for treating various diseases. Piper betle, an evergreen and perennial plant, is valued for its medicinal properties from ancient times. The purpose of this study was to assess the effect of aqueous extract and ethanolic extract of Piper betle leaf on animal models of learning and memory and compare it with piracetam. METHODS Piper betle leaves aqueous extract (PBAE) and ethanolic extract (PBEE) were administered to the Swiss albino mice at a dose of 100, 200 mg/kg body weight orally for 14 days to evaluate their effect on spatial learning and memory using the Hebb– William’s maze (HWM) and elevated plus maze (EPM). The study group included a control (distilled water) and a standard nootropic agent (Piracetam 150 mg/kg). RESULTS One-way analysis of variance (ANOVA) followed by Tukey Kramer’s multiple comparison test (P = 0.05) were used for comparison of groups and tabulated as mean ± SE. PBEE at a dose of 100 mg/kg and 200 mg/kg has shown significant memory enhancing activity, as indicated by a decrease in the TRC (time taken to reach the reward chamber) and TL (transfer latency) in both the screening tests of learning and memory. CONCLUSIONS PBEE possess potent memory enhancing property and can be considered as a potential drug for improving memory in the medical management of dementia, Alzheimer’s disease, and neurodegenerative disorders. KEY WORDS Piper betle L, Swiss Albino Mice, Hebb–Williams Maze (HWM), Elevated Plus Maze (EPM), Piracetam.
Predicting the Risk of Inferior Alveolar Nerve Injury in Impacted Lower Third Molars Using Panoramic Radiography and Cone Beam Computed Tomography
Authors: Verma Abhishek , Verma Stuti , Dhankhar Anushikha , Moral Nitin Kumar , Nagar Nidhi , Bhadoria Ajeet Singh
Published: September 2021

BACKGROUND A serious complication of surgical removal of impacted lower third molars is inferior alveolar nerve (IAN) injury. Evaluation of radiographic factors to predict IAN injury using CT and panoramic radiography includes root morphology assessment, follicular sac size, mandibular bone density, inferior alveolar nerve and vessels, condition of the overlying tissues, relation of the impacted tooth with the body and ramus of the mandible and the adjacent teeth. This study was done to evaluate the radiological features of the impacted lower mandibular teeth and their relationship with IAN through panoramic radiography and CT and to assess the most predictable radiological criteria for inferior alveolar nerve injury in impacted third molar surgery. METHODS All the patients indicated for lower third molar extraction were included in the study and pre-operative conventional panoramic radiographs (Planmeca Proline PM 2002 CC, Helsinki, Finland) and CBCT (Kodak CBCT) were taken. Any post-operative nerve injuries detected were followed up after 15 days or 1 month. Fisher’s exact test was done to find the association between the outcome variable and explanatory variables. RESULTS Only 11.4 % (N = 4) of all participants had IAN injury following surgical disimpaction. All the participants with IAN injury showed narrowing of the canal on their preoperative panoramic radiographs and presence of nerve approximation with the tooth in cone beam computed tomography (CBCT) reports (P < 0.05). CONCLUSIONS A statistically significant association exists between IAN injury and nerve exposure, radiographic signs of nerve involvement for panoramic radiograph, level of third molar impaction, and nerve approximation in CBCT. KEY WORDS Inferior Alveolar Nerve Injury, Lower Third Molar Impaction, Panoramic Radiography, CBCT
Comparison of Static Balance among Cricket, Badminton, Football and Track and Field Athletes
Authors: Sanghavi Aishwarya Dilip , Chotai Khushboo Trishant , Patil Smita Chandrakant , Rayjade Amrutkuvar Shivaji , Sawant Janhavi Mahadev
Published: September 2021

BACKGROUND The balance plays an indispensable role in many sports. Static balance is crucial for a postural control and has an exceptional effect on the performance of sports players and for injury prevention. Sports like cricket, football, track and field, and badminton requires static balance for the execution of a sports-specific skill. Single leg stance test was used to assess balance on a surface during a 30 sec single-leg standing posture with eyes open and eyes closed. The main goal of this study was to determine that, in which sport the static balance was more and in which sport the static balance was inferior. The objectives were to assess the static balance in cricket, badminton, track and field, football athletes and compare the static balance in all 4 sports [cricket, badminton, track and field, football] METHODS A total of one hundred and twenty - four athletes [124], cricket {N = 31}, football {N = 31}, badminton {N = 31}, track and field {N = 31} voluntarily participated in the study. Static balance was assessed by using single leg stance test with eyes open and eyes closed. RESULTS By comparing all sports, it showed that there was a statistically significant difference between cricket, football, badminton and track and field athletes in dominant and non - dominant leg with eyes open and eyes closed. With eyes open, a static balance was demonstrated superior in track and field followed by football, cricket and least in badminton players in the dominant leg and non-dominant leg. (P < 0.0001) Whereas, with eyes closed, comparing between sports individually, there showed no such significant difference between dominant and non-dominant leg. Static balance was superior in track and field followed by football, by cricket and least in badminton in dominant and non-dominant leg (P < 0.0001). CONCLUSIONS Track and field players did not differ in dominant and non-dominant legs. In contrast, badminton players displayed mediocre static balance with eyes open and football players displayed mediocre static balance with eyes closed. There was no significant difference between open and closed eyes. But the balance score showed superior balance in open eyes when compared with closed eyes. KEY WORDS Athletes, Static Balance, Single Leg Stance Test, Balance, and Sports Performance.
Assessment of Immediate Skeletal Changes after Alternate Rapid Maxillary Expansion and Constriction – A Case Report
Authors: Pharande Shilpa Venkatesh
Published: September 2021

The Alt-RAMEC protocol was introduced by Liou in the year 2005. It allows for sutural mobilisation by opening and closing the RME screw for 7-9 weeks. Maxillary protraction after the use of Alt-Ramec (alternate rapid maxillary expansion and contraction) protocol is an efficient method for early treatment of skeletal Class III malocclusion. This case report shows the results of using a hyrax bonded maxillary expander with the Alt-RAMEC protocol to treat a maxillary hypoplasia Class III malocclusion. A 12-year-old patient with skeletal class III malocclusion with anterior as well as the unilateral posterior crossbite was treated using this protocol. CBCT scans were taken before and after expansion. These CBCT scans were used for assessing and analysing the skeletal changes that have occurred after using the AltRamec protocol. The objective of this case report is to assess skeletal changes after using the Alt-RAMEC protocol.
Cerebral Venous Sinus Thrombosis (CVST) in a Middle-Aged Female with Clustering of Risk Factors
Authors: Prothasis Maria , Gupte Yash , Acharya Sourya , Shukla Samarth , Acharya Neema
Published: September 2021

Thrombosis of cerebral venous channel is a known complication of hypercoagulable states. Hyperhomocysteinaemia is a known hypercoagulable state. Obesity is a modern-day global epidemic. Disorders such as myocardial infarction (MI), stroke, and venous thromboembolism are on the rising trend and its increased morbidity and mortality is being associated with obesity. To date, however, the knowledge about the association between obesity and adult cerebral venous thrombosis (CVT) is sparse. We report a 44-year-old young morbidly obese metabolically unhealthy female who presented with headache, nausea, vomiting and giddiness. On evaluation, magnetic resonance venogram showed cerebral venous sinus thrombosis. On investigations, she had concomitant hyperhomocysteinaemia and metabolic syndrome. Cerebral venous sinus thrombosis causing stroke in young adults is uncommon with various conditions precipitating it.1,2,3 Severe headache (70 - 90 %), focal lateralized signs (25 % - 75 %), seizures (30 – 40 %) as well as behavioural symptoms such as delirium, amnesia, and disturbances in consciousness are the various associated clinical symptoms. The known inherited hypercoagulable risk factors that cause CVST are gain of function mutations in the genes encoding factor V (factor V Leiden) and prothrombin, Protein C, S and antithrombin III deficiency. Hyperhomocysteinaemia, is a known risk factor for causing venous thrombosis of the lower limbs. However, till date there is no data available showing its role in causing cerebral venous thrombosis. The interaction between genetic and acquired determinants result in high plasma levels of total homocysteine (tHcy).4,5,6 Vitamins such as folic acid, pyridoxine, and cobalamin are involved in the metabolic pathways of homocysteine and its deficiencies represent the acquired determinants. Venous thromboembolism (VTE) comprises of deep vein thrombosis of the leg and pulmonary embolism and obesity is now being recognised as one of the risk factors causing it. The risk of VTE is approximately increased to 2-fold in an individual with a body mass index (BMI) (calculated as weight in kilograms divided by height in meters squared) of 30 or more compared with a normal BMI (< 25), and higher BMIs increase more risk with approximately 3 times higher risk in individuals with a BMI greater than 40.7, 8,9 Again obesity as a risk factor for CVST is less known.
Articaine VS Lignocaine in Orthodontic Extraction of Maxillary Premolars - A Randomized, Double-Blinded Study
Authors: Jain Meenu , Dogra Namrata , Gupta Manish , Grover Seema
Published: September 2021

BACKGROUND Local anaesthetics helps in preventing pain during surgical and dental procedures by blocking the peripheral nerves. The primary objective of this investigation was to compare and evaluate 4 % articaine hydrochloride (with 1 : 100000 adrenaline) and 2 % lignocaine hydrochloride (with 1 : 80000 adrenaline) in terms of pulpal anaesthesia, volume of anaesthetic solution administered, need of re-anaesthesia and difficulty of extraction during orthodontic extraction of maxillary first premolars. METHODS This prospective randomized, double-blinded study was conducted on 43 patients of less than 40 years of age requiring bilateral maxillary first premolar extractions for orthodontic purposes. Each patient was randomly assigned to receive either 2 % lignocaine hydrochloride or 4 % articaine hydrochloride for premolar extraction of one side and other solution was administered for premolar extraction of contralateral side spaced 1 to 3 weeks apart. In each patient, the difference in pulpal anaesthesia, volume of anaesthetic solution administered, need of re-anaesthesia, difficulty of extraction and duration of anaesthesia was assessed on administration of lignocaine hydrochloride and articaine hydrochloride. RESULTS Statistically significant difference in pulpal anaesthesia levels was found when the articaine and lignocaine groups (P > 0.05) were compared, with a higher mean pulpal anaesthesia among the articaine group. There was no difference in volume of anaesthetic solution administered on buccal and palatal side among the articaine and lignocaine groups. Only 2.3 % of patients in both the groups required re-anaesthesia on the buccal side. There was no significant difference in difficulty of extraction in both the groups. The articaine group had a longer mean duration of anaesthesia as compared to the lignocaine group which was highly significant. CONCLUSIONS Articaine may be used to replace lignocaine in orthodontic extraction of maxillary premolars with clinical advantages like higher pulpal anaesthesia and longer duration of anaesthesia. KEY WORDS Local Anaesthetic, Lignocaine Hydrochloride, Articaine Hydrochloride, Orthodontic Extraction, Prospective Study, Double-Blinded Study.
To Estimate the Importance of Wharton’s Jelly in the Growth of the Foetus – A Light Microscopic Study
Authors: Rajasekharan Sreekumar , Govindapillai UmesanKannanvilakom , C. Manju Madhavan , R. S. Suja , T Swapna , Chitradevi Sajeena Narayanan
Published: September 2021

BACKGROUND Human umbilical cord contains two arteries and one vein with their tunica intima and tunica media layers. The role of tunica adventitia is fulfilled by Wharton’s jelly, a mucoid connective tissue. The function of Wharton’s jelly is to prevent the vessels from compression and torsion which is essential for foetal development. The purpose of the study was to estimate the importance of Wharton’s jelly in the growth of the foetus. METHODS Umbilical cord tissue collected from each case was immediately put in 10 % formalin for fixation. Slides were then stained with Haematoxylin and Eosin. These slides were then read under light microscopy and measurements were taken using a photomicrograph. Wharton’s jelly area was calculated by subtracting the total vessel area from the umbilical cord area. RESULTS The histological measurements of umbilical vessels include the external diameter, lumen diameter, wall thickness, thickness of tunica intima and tunica media, and the area. The mean area of the umbilical cord was 35.73 ±23.04 mm2 (Mean ± SD) and the mean area of the Wharton’s jelly was 29.74 ± 19.26 mm2. There was a significant difference in the external diameter and wall thickness of the umbilical artery. Analyses showed that there was a significantly (P < 0.01) increased external diameter and wall thickness of umbilical artery in normal cases, compared to single umbilical artery cases. CONCLUSIONS There was a significant positive correlation between the gestational age and the external diameter of the umbilical cord. There was a significant difference in the external diameter of the umbilical cord between SUA cases (4.45 mm) and the other foetuses with normal umbilical cord (6.53 mm). There was a significantly increased external diameter, lumen diameter, wall thickness and area of umbilical vein in normal cases, compared to single umbilical artery cases. There was a significantly increased area of umbilical cord and area of Wharton’s jelly in normal umbilical cord foetuses than foetuses with a single umbilical artery. KEY WORDS Foetus, Umbilical Cord, Wharton’s Jelly, Umbilical Artery, Umbilical Vein, Light Microscopy
Obstructive Sleep Apnoea in Orthodontics - A Review
Authors: Toshniwal Nandalal Girijalal , Mani Shubhangi Amit , Mote Nilesh , Nalkar Ashwini Ramesh
Published: September 2021

Obstructive sleep apnoea (OSA) is a sleep associated breathing disorder and it affects the health and quality of life of individuals suffering from it. Orthodontists should be well aware of the symptoms of this disorder and competent enough to recognize its signs and symptoms. Orthodontics is well suited for the treatment of OSA patients due to their expertise and knowledge regarding growth and development of orofacial and dentofacial structures as well as orthopaedic, orthodontic, and surgical correction of the jaws and other supporting tissues. There are basically two types of sleep apnoea- Central sleep apnoea and obstructive sleep apnoea where obstructive sleep apnoea is the more common one. This disorder can be life threatening as the oxygen supply to various parts of the body is substantially reduced. Obstructive sleep apnoea is caused by an interplay between a variety of factors, including sleep related loss of muscle tone in the tissues supplied by the glossopharyngeal nerve, anatomical obstruction of the nasal passages, large tonsils, large tongue, a retrognathic mandible, obesity, alcohol, sedative medication, and allergies. Sleep apnoea can be caused due to many factors and many treatment modalities have been employed to correct this disorder including mandibular advancement appliances, polysomnographs, and surgical intervention. It can be treated using surgery, continuous positive airway pressure and oral appliances therapy. This article highlights the role the orthodontist plays in the diagnosis and treatment planning of OSA patients. KEY WORDS Orthodontics, Obstructive Sleep Apnoea, Sleep, Snoring
Dental Implant Abutments and Their Selection - A Review
Authors: Benakatti Veena , Sajjanar Jayashree Arun , Acharya Aditya Ramnarayan
Published: September 2021

Dental implants have become the most promising and accepted prosthetic alternative to missing teeth. Innovative and technological advances in implant dentistry have improved the performance and long term prognosis of dental implants. The growing demand for dental implants has led many manufacturers to enter the industry. With this growth in implant dentistry various implant brands and their components are made available in the markets that vary in terms of design and other features. Success of implant restorations is related to various components involved with the prosthesis. Implant abutment is the link between implant and restoration; right selection of this abutment is vital for the success of implant prosthesis. There are varieties of implant abutments available in the market. Clinician should have adequate knowledge about these abutments and various factors that affect abutment selection, to choose the right one. Each implant case is different and clinician should be able to identify requirements of every individual case and choose the best suitable abutment available in the market. These abutments vary in implant abutment connection, material, type of retention, and fabrication methods. Though the ideal concept is prosthetically driven implant placement, many times anatomical features, esthetic requirements, soft tissue profile, axial load distribution, malpositioned implants, and many other patient factors do not allow ideal implant placement. Such cases can be managed by careful selection of abutments by assessing the clinical requirements, thus offering better treatment outcome. This paper is an attempt to contemplate various factors affecting abutment selection, and throw light on various implant abutments available in the market, thus guiding the clinician in abutment selection. Hence this article summarizes complete information about the implant abutments, including introduction, types, selection, and different abutments available in market. KEY WORDS Abutment Material, Implant Abutments, Implant Abutment Connection, Prosthesis Retention
Children’s accounts of labelling and stigmatization in private schools in Delhi, India and the Right to Education Act
Authors: Lafleur Michael , Srivastava Prachi
Published: September 2021

India’s Right of Children to Free and Compulsory Education Act, 2009 compels private schools to reserve a proportion of their seats for free for disadvantaged children. Although controversial, it is idealized as an equity measure for inclusion in and through education. This small-scale study, feeding into a larger research project, details children’s accounts of their everyday lived experiences at private schools in Delhi. Children reported labelling students by teachers as ‘naughty’ or academically ‘weak’ or ‘incapable’ as a pervasive practice. These ‘designated identities’ (Sfard & Prusak, 2005) were reinforced by teachers and through peer interactions. They were internalized by participants about their peers and affected how they interacted with them. Peers who were labelled were reported to be stigmatized. Surprisingly, neither caste nor gender were mentioned as explicitly marking participant experiences. The paper also discusses the participatory methods employed in the study as a further contribution to the literature on private schooling. Data are from participatory ‘draw-and-talk’ sessions conducted with 16 children in 2015-16 from marginalized backgrounds, accessing six different private schools in one catchment area, half of whom secured a free private school seat. Participants were from amongst the first cohorts eligible for the free seats provision.
Ritualzeit – Zeitwahrnehmungen und Zeitpraktiken am Hof um 1000
Authors: Schley Daniel
Published: September 2021

A notable feature of courtly life in Japan were its ritualized procedures, which not only included periodical religious ceremonies but also political activities. Time at the court was of the essence for its ceremonial routine. Yet how did courtiers perceive their daily occupations in temporal regards, and to what extent did they evaluate their personal time, while the communal time was objectively measured and pronounced? How did those involved in courtly ceremonies encounter time in terms of its availability and its symbolic qualities, e.g. bemoaning a lack of time or adjusting to auspicious as well as ominous dates? Research so far has provided a profound understanding of time calculations, the courtly ritual calendar and especially the divination office, whose task it was to determine favourable days for the various activities at the court. In contrast, concrete political and religious acts at court have received less consideration as temporal processes. In order to find some answers to the outlined questions, I will focus on rituals as a case study of conceptions and practises of time. Information on courtiers’ dealings with their individual as well as social time can be obtained from various sources, among which I examine courtly diaries, with a special focus on Fujiwara no Yukinari’s diary Gonki. The author’s statements about time will help to elucidate some temporal aspects of courtly rituals as well as to deepen our knowledge of time perceptions at the Japanese court during its heydays.
Ephraim of Ainos at work: a cycle of epigrams in the margins of Niketas Choniates
Authors: Bértola Julián
Published: September 2021

This article offers the first critical edition of a cycle of epigrams found in the margins of six manuscripts of Niketas Choniates’ History. This paper also proposes the attribution of the poems to Ephraim of Ainos, an author mainly known for his verse chronicle, which has Niketas Choniates as a source. Our poems occur in a group of manuscripts which we already knew Ephraim had used for his chronicle. Many formal parallels between the epigrams and the chronicle point to the same author and a book epigram connects one important manuscript with the city of Ainos. This paper reassesses the manuscript tradition of the epigrams with special emphasis on the marginalia of Niketas Choniates. The critical text of the poems is accompanied by two apparatuses and an English translation. The edition is preceded by some methodological considerations and followed by two appendices and three indices.
Die zweite Definition der Philosophie der alexandrinischen neuplatonischen Schule in den Werken des Niketas Stethatos
Authors: Diamantopoulos Georgios
Published: September 2021

This paper presents Niketas Stethatos’ use of the definition of philosophy as “knowledge of human and divine things”. The definition, of Stoic origin, was elaborated by the Neoplatonic school of Alexandria (Ammonios, Elias, David, Pseudo-David) together with five other definitions, and was adopted by the Church Fathers. The first part discusses aspects of the definition’s history in ancient, Patristic, and Byzantine literature until the eleventh century, which indicates Stethatos’ uniqueness. The second part presents the definition in his works (phraseology, sources and use), with emphasis on its relation to the φυσικὴ θεωρία. Also the extraordinary often and multifaceted appearance of this definition in Stethatos’ works in his controversy with Michael Psellos is investigated. Stethatos, through his elaborated and systematic reference to the definition, propagates the mystical experience as authentic philosophy against the rise of secular philosophy and its tendency to become autonomous.
Philip-Philagathos’ allegorical interpretation of Heliodorus’ Aithiopika: Eros, mimesis and scriptural anagogical exegesis
Authors: Duluș Mircea G.
Published: September 2021

The debate over the authorship of the allegorical interpretation of Heliodorus’ novel extant in codex Marc. Gr. 410 (coll. 522) bequeathed to subsequent scholarship the assumption that the text belongs to the Neoplatonic allegorical tradition of reading Homer. This essay aims to revisit this philosophical attribution and argue that the terms and philosophical categories alluded in this allegory are characteristic of a long tradition of Patristic analysis, and more specifically of Gregory of Nyssa and Maximus Confessor’s exegesis. Setting forth new textual evidence, it argues that the exegetical practice displayed in the allegory reflects Maximus Confessor’s anagogical exegesis (i. e., the etymological and numerical speculations) and Gregory of Nyssa’s pedagogy of desire and doctrine of spiritual progress as set forth in the Homilies on the Song of Songs and The Life of Moses.
Interventi censori nell’Anthologia Planudea
Authors: Floridi Lucia
Published: September 2021

The aim of this paper is to offer a complete survey of Planudes’s moralising corrections in his epigrammatic anthology, as these can be reconstructed through a comparison between Pl and the other testimonies (i. e. P and the Syllogae Minores). On the one hand, this analysis will confirm the inconsistency of the monk in bowdlerising the texts, often remarked by scholars; on the other, it will clarify that corrections intended to make a text morally acceptable are only occasional, and often ex-tempore. The Appendix discusses a further case of possible bowdlerization by Planudes in the Sylloge Laurentiana, composed about twenty years before his major anthology.
Image and Chalcedonian Eucharistic doctrine: a re-evaluation of the Riha paten, its decoration and its historical context
Authors: Fourlas Benjamin
Published: September 2021

The iconography of the Communion of the Apostles, a theme well established in Byzantine art after Iconoclasm, first appears in a securely dated context in the silver patens from Riha and Stuma. These silver plates were produced in Constantinople sometime between 575 and 578. The iconography with the twofold depiction of Christ is usually explained as a reflection of the liturgical practice of the Eucharist, namely, as a reflection of the two actors in the Eucharistic rite, the priest and a deacon distributing bread and wine. I argue instead that during the early Byzantine period the twofold depiction of Christ is an expression of the two natures of Christ directed against the Miaphysites. I propose that the exceptional appearance of the scene in the two early Byzantine silver patens from church treasures from northern Syria is likely to be explained by its Christological significance with regard to Chalcedonian Eucharistic doctrine during the persecution of the Miaphysites in the 570s.
The donor inscription of the Monastery of Lefkai (Euboea): new evidence for a μαρμαράριος of the middle byzantine period
Authors: Klonatos Vasileios A.
Published: September 2021

The present article focuses on the dedicatory inscription of St Charalambos, the katholikon of the Lefkai monastery in the village of Avlonari in Euboea. The inscription dates back to the second building phase of the monument, between 1143-1180. Pantelis Zographos was the first researcher who dealt with the dedicatory inscription, making however fundamental mistakes. He was followed by Johannes Koder in 1973. All subsequent researchers adopted and followed Koder’s interpretation. On the basis of new information, an amendment and new reading of the inscription are proposed which lead to a new marble carver’s signature, that of Κοσμᾶς ὁ μαρμαράριος in the dedicatory inscription. Inscriptions with the name of a stone or marble carver from the Middle Byzantine period in Greece are, up to this point, extremely rare.
Christmas presents for John Tzetzes: a new verse epistle from the letter collection
Authors: Pizzone Aglae
Published: September 2021

The corpus of Tzetzes’ epistles edited by Pietro Luigi Leone in 1972 includes 107 letters. However, two of the earliest manuscript witnesses of the collection bequeath a 108th letter consisting of 16 iambs and closing the corpus. The short missive is addressed to one Konstantinos Phyteianos. The present paper provides the first edition and translation into English of this letter, analysing its authorship and contents as well as its rhetorical function within the corpus.
John II Komnenos’ campaign in Cilician Armenia
Authors: Takirtakoglou Konstantinos
Published: September 2021

The present paper challenges the assertion that John II Komnenos’ first campaign against Cilician Armenia (1137) was directly connected with the conflict between the Byzantines and the Principality of Antioch. The supposed anti-Byzantine alliance between the Armenians and the Crusaders is examined within this context; excerpts from the relevant sources not only cast doubt on its existence, but also allow the assertion that during the period under examination the relations between the Armenians and the Crusaders were hostile. Thus, the issue that arises is the following: If Levon was an enemy of the Crusaders, why did he not stand at the Byzantines’ side, instead waging war against them? The assertion of the present paper regarding this policy decision is that it was due to Levon’s alliance with John’s primary enemy in the East, the Danishmends. In fact, the sources indicate that the subjugation of Armenia was of greater priority for the Byzantine emperor in his campaign than the conquest of Antioch. This is demonstrated by the fact that John refused to conclude a treaty with the Rubenid lord similar to that which he had concluded with the prince of Antioch, and is supported by the operational maneuvers of the Byzantine forces during the campaign. To connect John’s activities in Cilicia with his subsequent campaign in Pontus and the Turkish reactions to these Byzantine strategic moves, the present paper asserts that John’s conquest of Cilicia was part of a wider policy of strategic encirclement of the Danishmends.
Creditor Protection and Divisions – Did the CJEU Get It Right?
Authors: Alexandropoulou Antigoni , Winner Martin
Published: September 2021

The CJEU’s I.G.I. decision deals with an important aspect of creditor protection in divisions. The Court holds that the actio pauliana under Italian law may be applied to divisions, notwithstanding that such a protective measure is not foreseen in art. 146 and 153 Directive 2017/1132/EU. We argue that the Directive’s ex post protective measures should be understood as fully harmonizing provisions. The decision fails to strike the right balance between the interests of all relevant stakeholders involved, especially between different groups of creditors, and unduly impairs legal certainty. However, if one takes the decision as a basis, the judgment gives Member States considerable room to introduce or maintain additional safeguards in their national legal systems. We show that national legislators should not give in to this temptation, neither for domestic nor for cross-border divisions.
Shaped by the Rules. How Inducement Regulation Will Change the Investment Service Industry
Authors: Restelli Enrico Rino
Published: September 2021

Inducement regulation is intended to target the conflict of interests between financial advisors and their clients. Nonetheless, it may also represent a ‘public policy device’ meant to conform the activity of European distributors with investor protection goals; indeed, by selecting the conditions under which distributors can freely collect inducements, the European regulator simultaneously shapes the market for financial services. Accordingly, ‘spot advice’ (which poorly performed in the past) is indirectly banned by the quality-enhancement provision set forth in art. 24 MiFID II, and the acknowledged importance of on-going monitoring of the portfolio opens up the collection of inducements linked to the provision of ‘periodic advice’. Since this new regime will probably increase the overall costs of investment advice enlarging the ‘advice gap’, the European regulator tries also to foster the development of FinTech permitting the collection of inducements even outside the strict provision of investment advice. Nevertheless, the concerns regarding investor protection raised by FinTech services (which allow only a mere ‘self-assessment’ of the investor’s profile) suggest a broader interpretation of inducement regulation, with the purpose of enabling investment firms to provide low-cost financial advice capable of effectively encompassing every stage of the investment relationship, from the early assessment of clients’ characteristics and objectives to the on-going management of the investments (‘simplified advice’).
Experimental demonstration of broadband negative refraction at visible frequencies by critical layer thickness analysis in a vertical hyperbolic metamaterial
Authors: Cho Hanlyun , Yang Younghwan , Lee Dasol , So Sunae , Rho Junsuk
Published: September 2021

This work presents a vertical hyperbolic metamaterial (vHMM) consisting of a vertically stacked metal-dielectric multilayer that operates in the visible spectrum. The vHMM is designed by exploiting the relation between negative refraction and effective permittivity along the perpendicular direction of the layers (ε
⊥). When a vHMM has a high loss tangent defined by tan δ
⊥ ≡ Im(ε
⊥)/Re(ε
⊥), even a vHMM composed of relatively thick layers can generate negative refraction. A fabricable vHMM composed of gold and copolymer resist (EL8) which exhibits negative refraction at the wavelengths between 450 and 550 nm is designed using critical layer thickness analysis. The largest negative refraction is observed at the wavelength of 500 nm, where the angle of refraction reaches −1.03°. The corresponding loss tangent and equivalent refractive index are 1.08 and −0.47, respectively. However, negative refraction is not observed at the wavelengths longer than 550 nm due to low tan δ
⊥. We uncover that the tan δ
⊥ of a vHMM is the dominant condition for generating negative refraction rather than the ratio of layer thickness to wavelength.
Crystal structure of all-cis-2,4,6-trihydroxycyclohexane- 1,3,5-triaminium chloride sulfate, C6H18ClN3O7S
Authors: Velcheva Vyara , Hegetschweiler Kaspar , Gencheva Galina
Published: September 2021

C6H18ClN3O7S, trigonal, P31c (no. 159), a = 8.3990(14) Å, b = 8.3990(14)∘, c = 9.6208(17) Å, V = 587.76(17) Å3, Z = 2, R

gt
(F) = 0.0497, wR

ref
(F
2) = 0.1404, T = 300.15 K.
The crystal structure of (E)-amino(2-(4-methylbenzylidene)hydrazineyl)methaniminium 4-methylbenzoate, C9H13N4
+ C8H7O2
−
Authors: Atioğlu Zeliha , Kekeçmuhammed Hüseyin
Published: September 2021

Monoclinic, P21/c (no. 14), a = 14.187(15) Å, b = 10.585(11) Å, c = 11.952(13) Å, β = 113.851(16)∘, V = 1642(3) Å3, Z = 4, R

gt
(F) = 0.0479, wR

ref
(F
2) = 0.1408, T = 296(2) K.
First low-spin carbodiimide, Fe2(NCN)3, predicted from first-principles investigations
Authors: Chen Hao , Xiang Hongping
Published: September 2021

The structural stability and physical properties of the Fe(III) carbodiimide Fe2(NCN)3 were studied by use of density functional theory. The results indicate that Fe2(NCN)3 (space group

R

3
‾

c

$R‾{3}c$

) is stable both thermodynamically and mechanically. The electronic structure in combination with the phonon dispersion relations suggest that the title compound should be ferromagnetic and half-metallic, and that the Fe3+ ions are in the low-spin state.