bluuebunny/crossref_metadata_2025_split huggingface dataset:
Customized Auricular Stent for Recanalization
Authors: Raj Indu , Madhusoodanan Amritha K. , Nanukuttan Sreeja K. 
Published: August 2023

ABSTRACT

Congenital aural atresia is a developmental deformity present at birth which involves some degree of hypoplasia or aplasia of the external auditory canal that causes both esthetic and functional impairments. Canalization surgery is the corrective procedure done to create communication between the external ear and the middle ear to improve conduction hearing. Literature shows canalization can be failed by a high restenosis rate (8%–42%). In this case report of a 6-year-old male child with complaints of reduced hearing and lack of speech clarity with a history of a failed previous canalplasty, the diagnosis was microtia of the left side and atresia of the right external auditory canal. Right ear external recanalization surgery along with the use of a surgical stent was planned. The impression for the stent is made during the surgery itself to ensure the success of the procedure. Long-term maintenance of the surgical stent reduced restenosis. In the follow-up, the audiological assessment showed a good outcome; and normal hearing, in a postoperative period of 6 months. Based on the outcome of this case report a suggestion can be put forward that “to ensure the best prognosis after canalization procedure, the long-term usage of a customized surgical stent is essential.”

CLINICAL RELEVANCE TO INTERDISCIPLINARY DENTISTRY
• Congenital aural atresia is a case scenario demanding a multidisciplinary approach for its comprehensive management
• The first surgical attempt to correct this condition became a failure due to the lack of proper planning and execution
• In this case, the multidisciplinary team included ENT surgeons, plastic surgeons anesthesiologists, and prosthodontists. Recanalization was done by the ENT surgeon; a split-thickness skin graft was placed by the plastic surgeon and the canal patency maintenance was accomplished by the prosthodontist
• Here, careful planning and proper involvement of the entire team including the on-the-table impression making by the prosthodontist ensued the clinical success.
A Surgical Procedure for Replanting a Tooth that Has Been Rendered Hopeless Because of Periodontitis
Authors: Singh Gaurav , Chauhan Shailendra S. , Nagpal Ajay , Sinha Aditya , Sharma Satendra , Kaul Prakriti , Kulshrestha Saksham 
Published: August 2023

ABSTRACT

This article describes a periodontally compromised, hopeless incisor tooth that was purposefully replanted, along with the results after 6 months. This entails the deliberate removal of the tooth and its subsequent correct manipulation and endodontic restoration before reinserting it into the socket. Hopeless lower incisors with periodontal involvement were transplanted utilizing an implant surgical drilling approach after receiving root canal therapy and tetracycline hydrochloride conditioning. Bone graft material was added, and the procedure was monitored for 6 months. The tooth was observed to be asymptomatic, functioning normally, and showing no pathologic radiological changes. With minimal bleeding during probing and no growth of pathological pockets, the periodontal condition was within normal limits. Alveolar bone support was seen to be adequate. The results may suggest that, in some circumstances, purposeful replantation is a viable strategy of treatment for maintaining the native dentition. Intentional tooth reimplantation can be an alternative treatment option for periodontally involved teeth with poor or hopeless prognosis.

CLINICAL RELEVANCE TO INTERDISCIPLINARY DENTISTRY
It is a combined perio-endo surgery.
Efficacy of three irrigation methods in removing calcium hydroxide from curved root canals: An in vitro micro-CT study
Authors: Radeva Elka N , Mironova Jasmina V , Marinova-Takorova Mirela B 
Published: August 2023

Abstract

Aims and Objectives:
This in vitro study aimed to compare the efficacy of three different irrigation methods in removing calcium hydroxide from curved root canals and to estimate the amount of residual medicament using microcomputed tomography.

Materials and Methods:
Thirty extracted molars with curved mesial root canals, ranging from 25° to 30°, were prepared with ProTaper Next using X2 to full working length and were filled with calcium hydroxide. Teeth also were randomly divided into four groups: group 1 (n = 8)— Erbium: Yttrium-Aluminum-Garnet (Er:YAG) laser; group 2 (n = 8)—EndoActivator; group 3 (n = 8)—EndoVac; and a control group (n = 6)—negative control with no calcium hydroxide. Microcomputed tomography was used to evaluate the residual amount of filling material. Statistical analysis was performed using IBM SPSS Statistics 26, with a significance level of 0.05. Descriptive statistics, student t test, and Chi-square test were applied for data analysis.

Results:
The greatest amount of residual calcium hydroxide was observed in the samples with EndoVac irrigation (0.515 mm3), followed by EndoActivator (0.381 mm3) and Er:YAG laser (0.121 mm3). However, no statistically significant difference was observed between the groups. The greatest residual amount was observed in the apical third (0.419 mm3), followed by the middle (0.050 mm3) and the coronal (0.015 mm3).

Conclusions:
No statistically significant differences were observed in the efficacy of the tested techniques for removing calcium hydroxide from curved root canals, whereas a significant difference was observed in the distribution of residual material depending on the technique used. The removal of the calcium hydroxide was more effective in the coronal and middle third of the canal. The greatest residual material was found in the apical portion of the root canal.
Décomposition et effet de la litière de <i>Parkia biglobosa</i> (Jacq.) R. Br. Ex G. Don. sur la croissance et le rendement du riz en Basse Casamance, Sénégal
Authors: Basséne Jean , Diédhiou Siré , Diatta Yaya , Goudiaby Arfang Ousmane Kémo , Sagna Yves Paterne , Sow Mamadou , Camara Boubacar , Mbaye Papa N. , Sow Aliou , Fall Saliou , Ndoye Ibrahima , Diallo Mariama Dalanda 
Published: August 2023

Afin d’améliorer le potentiel productif des terres rizicoles tout en préservant la biodiversité ligneuse, l’association judicieuse des cultures et des arbres est une alternative de choix. Cela devra toutefois passer auparavant par la détermination de l’impact des substrats des arbres d’intérêt (litière, terreau) sur la culture du riz. L’objectif de cette étude a été d’étudier la décomposition de la litière de Parkia biglobosa et de déterminer l’effet de l’amendement de cette litière sur la croissance et le rendement du riz. Un dispositif en bloc randomisé avec neufs traitements répétés trois fois, constitué de quatre doses de litière de feuille (F1[500g/m2 ], F2[1000g/m2 ], F3[1500g/m2 ], F4[2000g/m2 ]), de gousse (G1 [300 g/m2 ], G2 [600 g/m2 ], G3 [900 g/m2 ], G4 [1200 g/m2 ]) et un témoin (T [0 g/m2]) a été mis en place. Il ressort de ces résultats que La coque des gousses a eu une décomposition beaucoup plus rapide suivies des tiges et des folioles. Les taux de germination de riz les plus élevés ont été observés avec les petites doses de litière [G1 (80%) et F2 (72%)]. Sur le plan morphologique (tallage, feuille et hauteur), les doses les plus élevées de gousses (G4 et G3) et de feuilles (F3 et F4) ont été globalement plus performantes. Les rendements en grain les plus élevés ont été observés avec les traitements G4 (2,94 t/ha), G3 (1,44 t/ha), F4 (1,42 t/ha) et F3 (1,40 t/ha) et ce, comparé au témoin Pr= 0,000294. Ainsi, l’influence de la litière de Parkia biglobosa observée, laisse présager une association bénéfique pour la culture du riz.
Insecticidal activity of <i>Ricinus communis L.</i> seed extract against <i>Spodoptera frugiperd</i>a J.E. Smith under laboratory and field conditions
Authors: Kombieni Emmanuel , Tchabi Atti , Sourassou Nazer Famah , Nadio Abouwaliou Nafadjara , Djiwa Oyetounde , Banito Agnassim , Tounou Agbéko Kodjo , Sanda Komla 
Published: August 2023

Insecticidal activity of the aqueous extract of the castor seed (Ricinus communis L.) against the Fall Armyworm (FAW), Spodoptera frugiperda (Lepidoptera: Noctuidae), one of the worst pests of maize crop, was assessed under laboratory and field conditions. In laboratory, the larvicidal activity of three concentrations of the extract that are 150 g/l, 200 g/l and 250 g/l and their effects on the development of FAW were evaluated through direct exposure and ingestion tests. The field experiment consisted of a randomized block design with two extract concentrations – 200 g/l and 250 g/l – and negative control consisted of untreated plots and positive control plots were treated with Emacot (Emamectin benzoate). Results of the laboratory experiments revealed considerable larvicidal activity of the extract through the ingestion test, inducing the larvae mortality of 75.8%, 60.3% and 46.5% for the extract concentrations of 250 g/l, 200 g/l and 150 g/l respectively, whereas positive (Emacot) and negative controls (emulsified water) recorded 100% and 3.3% of the larvae mortality, respectively. The field results showed 10% and 11% of infested plants in plots treated with 200 and 250 g/l, respectively, whereas Emacot-treated plots recorded 9.5% of infested plants. Untreated plots recorded the highest infested plants of 22.5%. The two- castor seed extract concentrations 200 g/l and 250 g/l reduced about 50% of maize plant infestation by FAW, thus could be a good candidate as alternative to chemical pesticides in controlling the pest.
Influence of sowing dates on the population density of the fall armyworm <i>Spodoptera frugiperda</i> (JE. Smith) and its damage on maize plants in Chad
Authors: Mbaidiro Josue Taambaijim’d , Onzo Alexis , Djenaissem Alfred , Mbaikoubou Mekila 
Published: August 2023

Fall armyworm, Spodoptera frugiperda, constitutes a major challenge for maize growers and scientists, as it threatens the food security of all these countries. In order to contribute to the sustainable management of the pest in Chad, this study aimed at assessing the effect of sowing dates on the level of maize infestation in the field. Three sowing periods for maize, chosen in connection with the onset of rains, were tested (the early sowing (July 2nd), the intermediate sowing (July 16th), and the late sowing (July 30th)) with a Fall armyworm- sensitive maize variety. The results indicated a significant effect of sowing dates on the population densities of the pest, with the early sowing hosting the highest density and infestation rate of the pest, compared to the intermediate and late sowing (P < 0.0001). Moreover, the results showed a significant impact of sowing dates on grain yield (P < 0.005), with significantly higher values in the intermediate sowing while, the early and late sowing recorded lower yields. These results indicated that the intermediate sowing should be recommended for this early maturing and fall armyworm-sensitive maize variety to limit population outbreaks of this pest, together with its adverse consequences on maize yield.
Social factors explaining poor fishing practices on Buyo Lake in N'zo Partial Wildlife Reserve, Côte d’Ivoire
Authors: Koigny Kouadio Juslin Hervé , Diarrassouba Abdoulaye , Yelkouni Martin , Assie Djeyao Roy Hartman , Wairimu Velmah Wambui 
Published: August 2023

The Buyo lake, which is the result of Buyo hydroelectric dam, is exploited by the local population for fishing. However, fishermen use non- regulatory fishing gear and techniques that destroy fish stock, leading to a depletion of the lake's fisheries resource. This study aimed at understanding the social factors that explain the use of non-regulatory fishing tools and techniques by fishermen. Social data and data relating to fishing practices were collected from 109 fishermen of Buyo lake in 3 fishermen camps, namely PK15, PK28, and Derra. Statistical analysis of the data showed that young fishermen are the most numerous and represent a proportion of 58.75% of this population. The years of experience of the fishermen vary from 2 years to 40 years with an average of 19.3 years. The majority of fishermen are illiterate, that is 86.24%. Fishing was the main economic activity for 96.33% of the fishermen. The fishermen visited Buyo lake daily for fishing. The majority of fishermen (92.66%) acknowledged a decline in the fishery resource in Buyo lake. The results also showed that the poor fishing practices adopted by the fishermen can be explained by the age of the fishermen and their years of experience of the fishermen.
Black Seed (<i>Nigella sativa</i>) oil restores smoke or nicotine-induced vascular impairment via improvement in endothelium-dependent relaxation: role of nitric oxide synthase and voltage-sensitive potassium channels
Authors: Adejare Abdullahi A. , Oloyo Ahmed K. , Ishola Imaila O. , Busari Abdulwasiu A. , Ismail-Badmus Khadijah B. , Abdulrazaq Muhammed M. 
Published: August 2023

Background: Despite the overwhelming evidence linking smoking and nicotine intake with vascular function impairments, the mechanisms involved and the possible ameliorative effect of black seed (Nigella sativa (NS)) oil administration are not clearly understood. This study sought to determine the involvement of nitric oxide synthase and voltage-sensitive potassium channels in the modulation of vascular reactivity in cigarette or nicotine-exposed rats treated with NS oil.
Methods: Thirty male Sprague-Dawley rats were divided into 6 groups comprising vehicle control (Control), NS oil only (NS), Smoke only (SMK), Smoke + NS oil (SMKNS), Nicotine only (NCT) and Nicotine + NS oil (NCTNS). Animals were either passively exposed to cigarette smoke or nicotine vapour for 12 weeks, however, NS oil treatment commenced from 9th-12th week orally. At the end of the 12-week experimental period, vascular reactivity to norepinephrine (NE), acetylcholine (ACh) and sodium nitroprusside (SNP) were assessed with or without the presence of L-nitro-arginine (LNA) or 4-Amino-pyridine (4AP).
Results: Percent contractile response to NE was higher (p < 0.01) while relaxation response to ACh was lower in the SMK and NCT (p < 0.05) groups. LNA-induced inhibition to ACh was significantly reduced in both SMK and NCT groups. 4AP-induced inhibition to ACh was significantly increased only in the NCT group. 4AP-induced inhibition to SNP was increased in SMK group. NS oil reduced only contractile response to NE in NCT group. It also significantly improved relaxation response to ACh as well as restored LNA-induced inhibition to ACh in the SMK and NCT groups. Interestingly, while NS oil reduced 4AP-induced inhibition in the NCT group, it reduced 4AP-induced inhibition to SNP in the SMK group.
Conclusion: NS oil ameliorates vascular dysfunction by reducing contractile response in rats exposed to nicotine vapour while increasing endothelium-dependent relaxation as well as restoring differentially both LNA- and 4AP-induced inhibition in rats exposed to cigarette smoke and nicotine vapour.
DESAIN ANTENA MIKROSTRIP RECTANGULAR ARRAY 2X1 UNTUK RADAR KAPAL
Authors: Bagus Bambang , Aditiyawarman M. Andra , Pambudiyatno Nyaris , Suprapto Yuyun 
Published: August 2023

Antena merupakan salah satu komponen vital dalam suatu pemancar atau penerima. Antena bekerja dengan mentransmisikan dan menerima gelombang elektromagnetik dari dan ke udara. Antena mikrostrip merupakan salah satu jenis antena yang saat ini sering diaplikasikan di beberapa peralatan sebagai salah satu antena alternatif dan inovasi antena dikarenakan proses fabrikasi yang mudah dan murah.Penelitian ini mencoba dan merealisasikan antena mikrostrip recatngular patch untuk radar kapal yang diketahui bekerja pada frekuensi S-Band (2.2 GHz) dengan mengikuti standarisisasi spesifikasi antena radar yang dibutuhkan. Substrat yang digunakan pada antena ini adalah FR-4. Pada penelitian kali ini, penulis akan mencoba untuk mendesain dan menganalisa kinerja antena mikrostrip patch rectangular menggunakan aplikasi CST Studio Suite 2019 sebagai salah satu bentuk media pembelajaran antena alternatif pada frekuensi 2.2 GHz dan diharapkan memiliki nilai parameter VSWR ≤ 2, dan nilai return loss ≤ 10 dB.
Identitats literàries que milloren les reals. Mimesi i historiografia: lligams entre cavalleria literària, historiografia i espais en la (de)construcció de la identitat en les lletres catalanes medievals
Authors: Martines Vicent 
Published: August 2023

Summary: We analyze how through some chronicles that describe the deeds of kings as examples of knights and rulers, literary mimesis becomes an essential tool to showcase models that can be utilized for the official image of the Crown. We use the four great Catalan chronicles (the first three in particular) and other historiographical accounts which use a great deal of literary mimesis as well as cultural and literary referents (classical tradition, matter of Britain), as well as the Cançó de la croada contra els albigesos. We pay attention to the view offered in them of the Battle of Muret. We also pay attention to Jaume’s conquests (a consequence of Muret) as viewed by the Muslims. We also analyze the consequences of this battle for England, such as the (xenophobic) suspicion that the English barons felt towards the newcomers, members of the retinue of Queen Eleanor of Provence, the daughter of Ramon Berenguer IV of Provence and therefore Jaume I’s niece. Eleanor finally retired to the Abby of Amesbury, which in turn became a place where identities formed and where, now that the queen was there residing, Arthurian motifs could be made credible: it is the place where Queen Genevieve retired after the Battle of Camlaan, which took place (in literature) on the fields of Salisbury, close to Amesbury. In sum, we analyze classical tradition, matter of Britain, victories and defeats, chronicles, chivalries, etc., all of them relevant topics for acquiring identity and that imply transferences: literature and history, mimesis that has an influence on reality. Keywords: Identity, mimesis, chronicles, Croada contra els albigesos, Battle of Muret, Elionor de Provença, Arthurian cycle, spaces and identity
Feasibility Study of Theoretical Efficiency Calculation for Flat Plate Collectors in Solar Water Heating Systems
Authors: Fatemi Sayed Ahmad Zamir , Zgham Wahidullah , Shirzad Safiullah , Serat Zainullah 
Published: August 2023

Solar energy stands as a paramount clean, abundant, and renewable power source holding remarkable potential to address our escalating energy needs. Among its crucial utilization methods, solar water heating systems integrating flat plate collectors (FPCs) emerge as vital contributors in harnessing and converting solar energy into utilizable heat. This study delves into the realm of FPCs' theoretical efficiency assessment, employing mathematical models and factoring regional weather conditions to meticulously evaluate the efficiency of single-glaze and double-glaze collector variants. The outcomes spotlight the single glaze collector's efficiency at 0.669 and the double glaze collector at 0.713, underscoring the discernible performance gap. In a landscape where industries, hospitals, residences in Kandahar, and comparable settings extensively depend on hot water, often derived from fossil fuel-driven heating, this research's implications hold particular relevance. By transitioning towards solar water heating, this study not only underscores a concrete method to curtail carbon emissions but also to significantly reduce energy expenses linked with conventional heating techniques. The findings beckon a departure from the status quo, emphasizing that cleaner energy options are attainable, even for regions demanding hot water requirements. As society navigates complex decisions concerning energy sourcing, embracing solar water heating stands as an auspicious stride towards a sustainable future, beckoning us to collectively embark on a path of energy-conscious choices for the greater good of our planet and the generations that will inhabit it.

Received: 20 July 2023 | Revised: 24 August 2023 | Accepted: 29 August 2023

Conflicts of Interest
The authors declare that they have no conflicts of interest to this work.

Data Availability Statement
Data available on request from the corresponding author upon reasonable request.

Author Contribution Statement
Sayed Ahmad Zamir Fatemi: Conceptualization, Methodology, Software, Validation, Formal analysis, Resources, Data curation, Writing - original draft, Supervision, Project administration; Wahidullah Zgham: Methodology, Writing - original draft; Safiullah Shirzad: Resources, Writing - review & editing; Zainullah Serat: Validation, Data curation, Writing - review & editing.
Bacterioplankton dark CO2 fixation in oligotrophic waters
Authors: Alothman Afrah , López-Sandoval Daffne , Duarte Carlos M. , Agustí Susana 
Published: August 2023

Abstract. Dark CO2 fixation by bacteria is believed to be particularly important
in oligotrophic ecosystems. However, only a few studies have characterized
the role of bacterial dissolved inorganic carbon (DIC) fixation in global
carbon dynamics. Therefore, this study quantified the primary production
(PP), total bacteria dark CO2 fixation (TBDIC fixation), and
heterotrophic bacterial production (HBP) in the warm and oligotrophic Red
Sea using stable-isotope labeling and cavity ring-down spectroscopy
(13C–CRDS). Additionally, we assessed the contribution of bacterial DIC
fixation (TBDIC %) relative to the total DIC fixation
(totalDIC fixation). Our study demonstrated that TBDIC fixation increased the totalDIC fixation from 2.03 to 60.45 µg C L−1 d−1 within the photic zone, contributing 13.18 % to 71.68 % with an average value of 33.95 ± 0.02 % of the
photic layer totalDIC fixation. The highest TBDIC fixation values were measured at the surface and deep (400 m) water with
an average value of 5.23 ± 0.45 and
4.95 ± 1.33 µg C L−1 d−1, respectively. These
findings suggest that the non-photosynthetic processes such as anaplerotic
DIC reactions and chemoautotrophic CO2 fixation extended to the entire
oxygenated water column. On the other hand, the percent of TBDIC
contribution to totalDIC fixation increased as primary production
decreased (R2=0.45, p<0.0001), suggesting the relevance
of increased dark DIC fixation when photosynthetic production was low or
absent, as observed in other systems. Therefore, when estimating the total
carbon dioxide production in the ocean, dark DIC fixation must also be
accounted for as a crucial component of the carbon dioxide flux in addition to
photosynthesis.