bluuebunny/crossref_metadata_2025 huggingface dataset:
Developing a preclinical model to evaluate the results of ridge preservation techniques
Authors:   Disciplina Parodontologie, Universitatea de Medicină şi Farmacie „Iuliu Haţieganu“, Cluj-Napoca, Cioban C. , Câmpian R.S. , Petruţiu Ş.A. ,   Disciplina Parodontologie, Universitatea de Medicină şi Farmacie „Iuliu Haţieganu“, Cluj-Napoca, Roman A. ,   Disciplina Parodontologie, Universitatea de Medicină şi Farmacie „Iuliu Haţieganu“, Cluj-Napoca, Soancă A. ,   Disciplina Parodontologie, Universitatea de Medicină şi Farmacie „Iuliu Haţieganu“, Cluj-Napoca, Mihu C.M. ,   Disciplina Histologie, Universitatea de Medicină şi Farmacie „Iuliu Haţieganu“, Cluj-Napoca, Zăgănescu R. ,   Facultatea de Medicină, Universitatea de Medicină şi Farmacie „Iuliu Haţieganu“, Cluj-Napoca, Picoş A. ,   Disciplina Protetică Dentară, Universitatea de Medicină şi Farmacie „Iuliu Haţieganu“, Cluj-Napoca, Muste A. ,   Departamentul de Chirurgie, Universitatea de Ştiinţe Agricole şi Medicină Veterinară, Cluj-Napoca
Published: September 2021

Preclinical tests required for the qualification of a biomaterial, designed for tissue-engineering approaches and regenerative medicine, for human trials are generally directed toward the evaluation of the device in animal models that approach the specific clinical application which the device is to be used. Depending on the knowledge in the field and previous data on product one can choose the appropriate model to screen the potential of the biomaterial. The protocols that are now accepted as standardized screening tests are those specific protocols which have been „validated“ through repeated use by different groups and for which consistent results were generated. Our team planned an ample preclinical research to evaluate the post-extraction healing when ridge preservation was performed using different biomaterials. Because these materials have been already tested and used in clinical practice and many data sustain their biocompatibility, we chose to perfect a canine model because: almost all preclinical studies on ridge preservation have been performed on the dog; the alveolar ridge has a similar shape to that of humans; the healing process of the extraction socket is obviously the same as humans and has already been extensively described; the roots of the experimental teeth can be easily removed. Our team studied the early healing qualitative phenomena and the late-healing qualitative and quantitative (dimensional) modifications of the ridges when different ridge preservation approaches were applied. The presented animal model that we perfected was validated by the publication of the results of our research in prestigious journals.
Oral manifestations of genetic and congenital diseases
Authors:   Facultatea de Medicină Dentară, Universitatea „Titu Maiorescu“, Bucureşti, Iordan-Dumitru Andreea Dona , Luca Rodica ,   Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie „Carol Davila“, Bucureşti
Published: September 2021

Aim. Highlighting the oral manifestations seen in various genetic syndromes and congenital patients hospitalized in a pediatric hospital in Bucharest (Romania). Methods. Retrospective study using medical records of pediatric patients (age = 1 day – 18 years) admitted for a period of three years (1.01.2010-31.12.2012). We selected only the medical records of patients diagnosed with genetic disorders and birth defects (GDD) of which were selected diseases that were associated with oral manifestations (OM). Were established for the whole lot and, separately, for each year: OM disease prevalence, age of first hospitalization, type OM, OM distribution by gender. Data were processed with the program Informatic Hypocrate/DRG. Results. Out of the 25213 hospitalized patients, 2216 (8, 78%) have GDD, between that 78 (3.51%) have been associated with OM. Anual distribution: 2010 – 9226 hospitalized patients, 730 (7.91%) GDD, between that 28 (3.83%) with OM; 2011 – 8,136 hospitalized patients, 769 (9.45%) GDD, between that 23 (2.99%) with OM; 2012 – 7,851 hospitalized patients, 717 (9.13%) GDD, between that 27 (3.76%) with OM. At 36 (46.15%) among patients with OM associated with GDD, age at first hospitalization was between one day-one year. The most frequent cases (23.07%) was cleft lip or palate and was associated with facial dysmorphism and mental retardation. In 20.51% of cases were associated with dental Anomalies of number and structure, in 11, 53% cases – Dental Anomalies of shapes, in 8.97% cases of micro/macroglossia. In a few cases met: mandibular hypoplasia and mucocutaneous. There were no differences between the two sexes. Conclusions. A great variety of OM was found in about 3.51% of hospitalized patients with GDD. Most of them were cleft lip or palate and required multidisciplinary intervention at very early age.
Considerations on the corrosion of orthodontic metallic brackets
Authors:   Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie „Carol Davila“, Bucureşti, Ionescu Ionuţ-Cornel , Ionescu Ecaterina ,   Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie „Carol Davila“, Bucureşti
Published: September 2021

The effectiveness of medical treatments depends on thorough knowledge of materials and techniques used. This is especially important in dentistry due to rich blood supply and the importance of the area in the patient’s psyche. Corrosion resistance is an important feature of all metal appliances used in dental care. We tested the corrosion resistance of metal brackets using a galvanostat and three artificial saliva solutions, formulated to have different pH levels. The results show that the maximum strength is obtained at pH values close to neutral.
Adhesive root canal filling
Authors:   Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie „Carol Davila“, Bucureşti, Scărlătescu Sînziana Adina , Perlea Paula ,   Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie „Carol Davila“, Bucureşti, Gheorghiu Irina Maria ,   Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie „Carol Davila“, Bucureşti, Diaconu Oana Andreea ,   Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie, Craiova, Iliescu Mihaela Georgiana ,   Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie „Carol Davila“, Bucureşti, Iliescu Andrei ,   Facultatea de Medicină Dentară, Universitatea „Apollonia“, Iaşi, Iliescu Alexandru Andrei ,   Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie, Craiova
Published: September 2021

The adhesive root canal filling was introduced as an alternative to gutta-percha and conventional sealers aiming to improve the long lasting success of the endodontic treatments. However, after more than one decade of clinical use the results are controversial. Taking into account the much higher cost and for the time being clinical parameters in debate of the adhesive root canal filling, it seems reasonable to still consider gutta-percha and conventional sealers as preferential materials for the root canal filling.
Misunderstanding of internal root canal morphology – a failure cause of the endodontic treatment (clinical case)
Authors:   Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie, Craiova, Diaconu Oana Andreea , Perlea Paula ,   Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie „Carol Davila“, Bucureşti, Ţuculină Mihaela Jana ,   Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie, Craiova, Scărlătescu Sînziana Adina ,   Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie „Carol Davila“, Bucureşti, Iliescu Mihaela Georgiana ,   Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie „Carol Davila“, Bucureşti, Iliescu Andrei ,   Facultatea de Medicină Dentară, Universitatea „Apollonia“, Iaşi, Iliescu Alexandru Andrei ,   Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie, Craiova
Published: September 2021

Knowledge regarding the morphology of the endodontic system is crucial when performing both a treatment and a retreatment which should be both efficient and predictable. The misapprehension regarding the anatomy of the root canals is one of the various issues which might occur during the endodontic treatment, as well as afterwards. The aim of this article is to emphasize, through a clinical case, the failure of a primary endodontic treatment, due to the misapprehension regarding the internal morphology of the inferior incisors, which in turn led to errors in preparing the cavity for endodontic access, to neglect the instrumentation, the lavage and the obturation of the second canal, and finally determining the occurrence of a manifest apical lesion. In order to achieve a good final result, the two canals underwent correct retreatment and tight obturation, after which the patient will be radiologically and/or computertomographical monitored for at least two years.
Evaluation of root canal morphology of maxillary second premolars in a Romanian population
Authors:   Departamentul de Endodonţie, Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie „Carol Davila“, Bucureşti, Perlea Paula , Nistor Cristina ,   Departamentul de Endodonţie, Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie „Carol Davila“, Bucureşti, Iliescu Alexandru Andrei ,   Departamentul de Reabilitare Orală, Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie, Craiova, Nistor Daniel ,   Medic dentist clinică privată, Baltac Robert Perlea ,   Specialist ECDL, Ţuculină Mihaela Jana ,   Departamentul de Endodonţie, Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie, Craiova
Published: September 2021

The complex root canal system of maxillary second premolars shows variations among different populations. The aim of this study was to evaluate the root canal morphology of second maxillary premolars in the romanian population. The number of roots, root canals and the root canal configuration were investigated using radiographs in both buccal-oral and mesio-distal incidence. They were categorized using Weine’s classifi cation. Among the 480 teeth, 90.83% had one root and 66.67% one root canal. The frequency of secondary maxillary premolars with two root canals (33.12%) shouldn’t be underestimated. Knowing the variations of the internal root canal morphology of maxillary second premolars in a certain population can lead the clinician to a better approach of the endodontic treatment.
Preventing the onset of osteonecrosis of the jaw in patients with intravenous bisphosphonate medication
Authors:   Facultatea de Medicină Dentară, Universitatea „Titu Maiorescu“, Bucureşti, Gioga Cherana , Cumpătă Cristian Niky ,   Facultatea de Medicină Dentară, Universitatea „Titu Maiorescu“, Bucureşti, Comăneanu Raluca Monica ,   Facultatea de Medicină Dentară, Universitatea „Titu Maiorescu“, Bucureşti, Ghergic Doina Lucia ,   Facultatea de Medicină Dentară, Universitatea „Titu Maiorescu“, Bucureşti
Published: September 2021

Osteonecrosis of the jaw (ONJ) induced by treatment with bisphosphonates is an adverse effect at this class of drugs whose history in the treatment of osteoporosis and bone malignant neoplasm is not very long, the first cases being reported in 2003-2004. Unfortunately, progress on both the number of cases and their complexity is fulminating. Currently, any dentist should be familiar with the symptoms of the disease but also with the potential risk of onset as well as its prevention. In this paper we present a therapeutic protocol that includes the use of piezosurgery, laser therapy, autologous platelet concentrates (A-PRF) and antibiotic applicable in patients with osteoporosis or bone malignancies undergoing treatment with bisphosphonates intravenously so as to prevent the installation of ONJ.
Morphometric and imagistic study of mandibular canal topography in dentate patients
Authors:   Disciplina Reabilitare Orală, Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie „Carol Davila“, Bucureşti, Sîrbu Valentin Daniel , Sălăvăstru Dan Ionuţ ,   Disciplina Anatomie, Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie „Carol Davila“, Bucureşti, Buţincu Lavinia ,   Disciplina Reabilitare Orală, Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie „Carol Davila“, Bucureşti, Ivaşcu Roxana ,   Disciplina Anatomie, Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie „Carol Davila“, Bucureşti, Nimigean Vanda Roxana ,   Disciplina Reabilitare Orală, Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie „Carol Davila“, Bucureşti, Sîrbu Ioan ,   Disciplina Implantologie Orală, Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie „Carol Davila“, Bucureşti, Nimigean Victor ,   Disciplina Anatomie, Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie „Carol Davila“, Bucureşti
Published: September 2021

The mandibular canal is considered the most important anatomical structure of the mandibular body. Its course shows many topographical variations that could complicate oral surgery procedures in the posterior mandible. The measurements were performed on mandibular cross-sections using both the morphometric method and the imagistic one. The following distances were determined: – the distances between the mandibular canal and the apices of the second premolar, first and second molar (D-CM distance); – the distance between the external (buccal) surface of the mandible and the mandibular canal (FV-CM distance);– the distance between the internal (lingual) surface of the mandible and the mandibular canal (FO-CM distance); After analysing the results and comparing them to the data available in literature, we can state that in this research we have found similarities but also differences from other studies in the field.
Caries Risk software – a new tool used for children caries risk assessment
Authors:   Disciplina de Prevenţie Oro-Dentară, Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie „Carol Davila“, Bucureşti, Funieru Cristian , Funieru Răzvan ,   Consultant independent
Published: September 2021

Introduction. Dental caries risk is a key factor which may influence dental health in the near future. It is a very important factor for developing individual or community preventive strategies. Material and method. 46 dental records were analyzed including data of caries baseline and caries risk factors in a group of 46 schoolchildren from city of Bucharest. The overall caries risk was estimated using version 1.0 of Caries Risk software, the first software designed and calibrated to provide caries risk for Romanian patients. Results. The caries risk was approximately 40% in our sample. The girls had a higher risk by about 13% compared to boys. Conclusions. Caries Risk software is an effective tool for estimating caries risk by having an easy mode for input data and a short time needed for processing.
The state of oral health in patients with chronic renal failure – partially study stage
Authors:   Disciplina de Protetică Dentară Fixă şi Ocluzologie, Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie „Carol Davila“, Bucureşti, Măcriş Andrei , Gener Ismail ,   Disciplina de Medicină Internă şi Nefrologie, Facultatea de Medicină Generală, Universitatea de Medicină şi Farmacie „Carol Davila“, Bucureşti
Published: September 2021

Aim. Obtaining stage results, pre-test questionnaire oral health’s assessment in patients with chronic kidney disease (CKD) – chronic renal failure (CRF), with or without nephritic syndrome, with or without initiated dialysis treatment. Material and method: the study was conducted by applying the questionnaire (pre-test) on a group of 30 patients – 15 patients in the target and 15 patients in the control group. Recorded data have been used for statistical analysis. Group distribution – gender: equal, 50% each group; age: average (years): 60.6 years old on target group and 62.6 years old on control group. IRC average time period (years) has been: 8.55 years on target group (women – 8.12 years and man – 9.04 years). On both groups the number of non-smoking patient has been higher then smoking patients. 9 patients on target group (5 women and 4 men) were framed on nephritic syndrome (average period of 16.5 years). Dialysis patients: 7 (4 women and 3 men), with an average period of 3 years. 67% of patients (target group) were in the range of 15-60 ml/min glomerular filtration rate. On the control group 30% of patients were between the values of 90-120 ml/min (or higher) and 50% in the range of 60-90 ml/min. Results and conclusions. In terms of oral health status of patients with CKD it was found that 50% of them are partially edentulous on more than a half-dental arcade, and 60% have no dentures.
Combined therapeutic possibilities in stage I osteonecrosis of the jaw
Authors:   Facultatea de Medicină Dentară, Universitatea „Titu Maiorescu“, Bucureşti, Gioga Cherana , Comăneanu Raluca Monica ,   Facultatea de Medicină Dentară, Universitatea „Titu Maiorescu“, Bucureşti, Ghergic Doina Lucia ,   Facultatea de Medicină Dentară, Universitatea „Titu Maiorescu“, Bucureşti
Published: September 2021

Osteonecrosis of the jaw (ONJ) is a serious complication of bisphosphonate therapy administered to treat conditions such as osteoporosis, Paget’s disease or bone metastases. In this article we present the case of a patient with complex pathology, suffering breast cancer surgery, who performed IV treatment with Zometa for 1 year postoperative. The patient developed ONJ in the mandibular frontal region and has experienced numerous episodes of acute infectious. In the first months of the onset disease were applied non-invasive topical treatments without success, followed by multiple surgeries to remove the pathological tissue by conventional methods. Many relapses led us to the successful adoption of a complex protocol, which combines several modern techniques and technology: piezosurgically bone resection guided by fluorescent light, the use of laser on soft tissue and application of PRF membranes in the residual defect.
The virtual reality technology use in prosthodontics
Authors:   Universitatea de Medicină şi Farmacie ,,Carol Davila“, Bucureşti, Sandu Simona Andreea , Neamţu Călin Dan ,   Universitatea Tehnică Cluj-Napoca, Grigorescu Sorin Dan ,   Universitatea Politehnica Bucureşti, Bănică Cosmin Karl ,   Universitatea Politehnica Bucureşti, Babiuc Iuliana ,   Universitatea de Medicină şi Farmacie ,,Carol Davila“, Bucureşti, Bisoc Adriana ,   Universitatea de Medicină şi Farmacie ,,Carol Davila“, Bucureşti, Constantinovici Andrei ,   Universitatea de Medicină şi Farmacie ,,Carol Davila“, Bucureşti
Published: September 2021

The virtual reality technologies can be included into the e-learning system, according to specialized studies. At present education system is in a period of transition from traditional to digital and virtual. Out of the benefits of using the 3D technologies in education, we name: 3D virtual learning solutions involving students in the learning process, helping them to understand faster various concepts, to remember knowledge; access to technology; complete the learning experience. In a lot of universities the majority of systems based on VR technologies are in their experimental stage, the issue of dental prosthetics being less or not at all approached.
Study of the chromatic variation among the anterior maxillary teeth in relation to patients age
Authors:   Disciplina de Protezare Parţială Mobilizabilă, Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie „Carol Davila“, Bucureşti, Constantinovici Andrei , Păuna Mihaela ,   Disciplina de Protezare Parţială Mobilizabilă, Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie „Carol Davila“, Bucureşti, Andrei Oana Cella ,   Disciplina de Protezare Parţială Mobilizabilă, Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie „Carol Davila“, Bucureşti, Farcasiu Titus ,   Disciplina de Protezare Parţială Mobilizabilă, Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie „Carol Davila“, Bucureşti, Iosif Ionel ,   Centrul Naţional de Supraveghere şi Control al Bolilor Transmisibile
Published: September 2021

Objective. The aim of this study is to analyze the variation of color among the maxillary anterior teeth. Additionally, this variation has been correlated with the age of the patients. Means and method. One examiner, free of any visual color deficiencies, has studied the chromatic behavior within the maxillary anterior dental group (13-23) for 30 subjects with ages between 23 and 34. With the help of the Vita Easy Shade (Vita Zahnfabrik – Germany), CIEL*a*b* chromatic parameters have been recorded for each tooth. Chromatic differences have been calculated for each set of adjacent teeth. The stated null hypothesis „There is no statistically relevant correlation between patients age and color variation among the maxillary anterior dental group“ was evaluated with the help of the Spearman/Pearson tests. Additional linear regression calculations have been made in order to estimate the color variation among anterior maxillary teeth in relation to age. Within the age limits of the study group, the estimated color variation has been calculated for the minimum age (23), maximum age (34) and medium age (28.5). Results. The correlations show that age is significantly correlated to the variation in dental color for the pairs 13/12, 12/11 and 22/23 (p<0.05). For the remaining pairs of teeth (11/21 and 21/22) the correlation between age and color variation is not relevant. Within the limits of this study, a tendency for chromatic uniformity has been noticed for 12/11, 11/21, 21/22, the differences becoming imperceptible to the human eye (∆E<2 ) after the age of 33, whereas the canines start to chromatically differentiate from the neighboring incisors around the age of 14-16, the contrast becoming more intense with age. Conclusions. Color is not uniformly distributed among the anterior maxillary teeth, and the chromatic variation is related to patients age. Therefore while restoring the maxillary arch with dentures (complete or partial), the sets of artificial teeth used should respect the color distribution in relation to the patient’s age.
Guided implantology and its effect on avoiding osseous grafts. Case study
Authors:   Facultatea de Medicină Dentară, Universitatea „Titu Maiorescu“, Bucureşti, Mihai Ionuţ Daniel , Mihai Roxana ,   Selarl de chirurgien dentistes Daniel et Roxana Mihai, Franţa, Despa Elena Gabriela ,   Facultatea de Medicină Dentară, Universitatea „Titu Maiorescu“, Bucureşti, Ghergic Doina Lucia ,   Facultatea de Medicină Dentară, Universitatea „Titu Maiorescu“, Bucureşti
Published: September 2021

Currently, guided implantology allows the use of a software that helps the practitioner to obtain a surgical guide in order to insert implants in areas rich in osseous offer and, therefore, he/she can renounce osseous grafts. Introduction. A 38-year-old male patient came to the dental office. He needed a speciality implant-prosthetic treatment. As a result of the endo-oral clinical and radiological examination, we noticed the occurrence of bilateral edentation of the upper canines, with two 13-year-old Maryland bridges. The two upper canines were in palatal position and the dentist preferred extraction and not the orthodontic treatment. The patient recalls that, over time, there were multiple episodes of decementation of the two temporary dental bridges and also episodes of dentinal sensitivity in contact with physical stimuli. He also recalls that each recementation was followed with multiple interventions on aggregation elements or on pillar teeth. Subsequently, there were performed study photos, impressions of the study and the 3D scanner was used. The proposed solution by the dentist previously was to insert two endoossesous implants after an initial autogenous graft with iliac crest assay. Conclusions. In this clinical study, we proposed the building of a surgical guide used in Simplant software, having as purpose the insertion of two Zimmer TSV implants with 13 mm length, without appealing to the osseous procedure initially proposed for the two implants. In our case, the permanent prosthesis was performed two months after the successful insertion.
Study of caries risk factors in a group of Bucharest schoolchildren (2)
Authors:   Disciplina de Prevenţie Oro-Dentară, Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie „Carol Davila“, Bucureşti, Funieru Cristian , Sfeatcu Ruxandra Ionela ,   Disciplina de Sănătate Orală şi Stomatologie Comunitară, Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie „Carol Davila“, Bucureşti, Funieru Elena ,   SCM Dr. Voinoiu, Răescu Mihaela ,   Disciplina de Prevenţie Oro-Dentară şi Sănătate Orală, Facultatea de Medicină Dentară, Universitatea „Titu Maiorescu“, Bucureşti, Ivan Loredana ,   Departamentul de Comunicare, Şcoala Naţională de Studii Politice şi Administrative, Bucureşti, Dumitrache Adina Mihaela ,   Disciplina de Sănătate Orală şi Stomatologie Comunitară, Facultatea de Medicină Dentară, Universitatea de Medicină şi Farmacie „Carol Davila“, Bucureşti
Published: September 2021

Introduction. A poor oral hygiene, a wick salivary buffering capacity or a high number of colonies of specific bacteria are real risk factors for dental caries. Material and method. This study was conducted on a sample of 46 students aged 10 to 12 years attending two schools in Bucharest. Oral hygiene assessment was made both by using questionnaires and by calculating the OHI-S score. The salivary risk factors were identified and analyzed using GC Saliva Check Buffer and GC Saliva Check Mutans tests. Results. OHI-S score for the entire group led to a moderate degree of oral hygiene. Almost 40% of pupils had a number of mutans streptococci colonies over the limit. Conclusions. The poor oral hygiene and the high number of mutans streptococci colonies in saliva found in this study lead to a high dental caries risk.
Sağlık Sektöründe Kamu Özel Ortaklığı Modeli ve Adana Şehir Eğitim ve Araştırma Hastanesine Yönelik Bir Araştırma
Authors: PANGAL Zekiye , YAŞ Hakan
Published: September 2021

Bu çalışmanın amacı, kamu özel ortaklığı (KÖO) modeliyle yapılan Adana Şehir Eğitim ve Araştırma Hastanesinin çalışanlarının KÖO algılarında sosyo-demografik özellikleri açısından farklılıklar bulunup bulunmadığını tespit etmektir. Hastane çalışanlarında (N=5.297) basit tesadüfi örneklemeye gidilerek, araştırmaya katılımı kabul eden 364 sağlık çalışanına 59 soruluk bir ölçek uygulanmıştır. Yanıtlar doğrultusunda açıklayıcı faktör analizi yapılmış ve altı adet faktör elde edilmiştir. Çalışanların yaş, cinsiyet, eğitim durumu, unvan ve mesleki çalışma süresi değişkenlerine göre faktörlerin anlamlı bir fark oluşturup oluşturmadığına yönelik toplamda beş temel hipotez oluşturulmuştur. Ardından, her bir değişkenin barındırdığı grup sayısına göre alt hipotezler belirlenmiştir. Hipotezler öncelikle Kruskal Wallis testiyle sınanmış, 0,05 anlamlılık düzeyinin altında reddedilen sıfır hipotezlerine ayrıca Mann-Whitney U testi uygulanarak sıra ortalamaları karşılaştırılmıştır. Algı karşılaştırması sonuçlarının çalışanların yaş, cinsiyet, eğitim durumu, unvan ve mesleki çalışma süresi değişkenlerine göre farklılık arz ettiği; ancak, bağımsız değişkenlerin gruplarından bazıları arasında farklılık bulunmadığı, bunların sıfır hipotezlerinin reddedilemediği görülmüştür. 26 yaş altı çalışanların KÖO’yu daha çok eleştirdikleri, 41 ve üzeri yaşta olanların sağlık hizmetlerinin finansmanında sorunlar yaşandığı algısına sahip oldukları, mesleki çalışma süresi beş ve daha az olan sağlık çalışanlarının KÖO’yu daha az eleştirdikleri, üniversite mezunlarının sağlık hizmetlerinin sunumunu sorunlu gördükleri ve aynı sorunun yönetici olarak çalışanlarda da algılandığı sonuçlarına ulaşılmıştır.
Algebraic Structures on Typed Decorated Rooted Trees
Authors:   Univ. Littoral Cô, Foissy Loïc ,   te d'Opale, France
Published: September 2021

Typed decorated trees are used by Bruned, Hairer and Zambotti to give a description of a renormalisation process on stochastic PDEs. We here study the algebraic structures on these objects: multiple pre-Lie algebras and related operads (generalizing a result by Chapoton and Livernet), noncommutative and cocommutative Hopf algebras (generalizing Grossman and Larson's construction), commutative and noncocommutative Hopf algebras (generalizing Connes and Kreimer's construction), bialgebras in cointeraction (generalizing Calaque, Ebrahimi-Fard and Manchon's result). We also define families of morphisms and in particular we prove that any Connes-Kreimer Hopf algebra of typed and decorated trees is isomorphic to a Connes-Kreimer Hopf algebra of non-typed and decorated trees (the set of decorations of vertices being bigger), through a contraction process, and finally obtain the Bruned-Hairer-Zambotti construction as a subquotient.
MODELING WAYS OF IMPROVING GREEN ECONOMY AND ENVIRONMENTAL PROTECTION IN THE CONTEXT OF GOVERNANCE
Authors: Pyliavskyi Iulii , Martusenko Iryna Martusenko , Molnar Oleksandr , Dzyana Halyna , Kushniriuk Voolodymyr
Published: September 2021

Today, the principles of a green economy are being updated and studied not only by experts in the field of environmental economics, but also in various political circles. A large number of countries use different instruments and principles of a green economy in their development policies and strategies. However, some countries fear this transformation because they believe that the transition to a green economy model may hinder their development. Thus, the formation of a clear methodology for the “green” economy is extremely relevant today. The main purpose of the study is to form ways to improve green economy and environmental protection in the context of governance. The article discusses the prerequisites for implementation, the basic principles of Green economy into the system of public administration, and also provides a system for modelling ways to implement the principles of Green economy using the IDEF0 methodology. This methodology allows to clearly seeing the ways and means of achieving this goal.
Amphibians and reptiles of the Atlantic Forest in Recôncavo Baiano, east Brazil: Cruz das Almas municipality
Authors: Protázio Arielson S. , Protázio Airan S. , Silva Larissa S. , Conceição Lennise C. , Braga Hugo S. N. , Santos Uilton G. , Ribeiro André C. , Almeida Amanda C. , Gama Vívian , Vieira Marcos V. S. A. , Silva Tiago A. F.
Published: September 2021

A list of amphibian and reptile species that occur in open and forested areas of the Atlantic Forest in the municipality of Cruz das Almas, in the Recôncavo Baiano, eastern Brazil is presented. Field sampling occurred between January 2015 to March 2019, totalling 117 samples distributed in three areas: Parque Florestal Mata de Cazuzinha, Mata da Cascalheira, and Riacho do Machado. A total of 1,848 individuals of 69 species (31 anurans, 14 lizards, 19 snakes, two amphisbaenians, and three testudines) was recorded. Additionally, one individual ofOphiodes striatuswas found in Mata da Cascalheira after the end of sampling, totalling 15 lizard species and 70 herpetofaunal species. The prevalence of open-area species and the presence ofPhyllopezus lutzae,Diploglossus lessonae, andDryadosaura nordestinain interior forest patches are discussed. Additionally, a new record of the invasive terrapinTrachemys dorbigniin the State of Bahia is reported.
Pass’Mirail… Une cour de Babel pour déserteur de soi
Authors: Muzard Julien
Published: September 2021

En panne dans nos institutions… Face aux fugues et désertions diverses. Nous rêvions d’un autre lieu, en dehors de nos institutions, une non-institution, un non-lieu ? Nous voulions peut-être échapper nous aussi… Fuguer de nos institutions… En miroir ? Mais quel espace proposer à ces jeunes adultes ? Quel lieu ? Quel temps d’accueil ? Quel langage ? Ne pas refaire ce que nous faisions déjà, ne pas être dans le même accueil, ne pas se présenter comme nous nous présentions dans nos institutions. Être ne pas, être en creux, en négatif.
The phases and effects of low temperature exposure on embryonic development inHermetia illucens (L.) (Diptera: Stratiomyidae)
Authors: Tollenaar W. , Joosten L. , Schmitt E.
Published: September 2021

Research on the black soldier fly (Hermetia illucens (L.) Diptera: Stratiomyidae) is steadily increasing, with a focus on its larvae and applications thereof. The egg stage of this species has received less research. This study describes the phases of embryo development for BSF eggs and the potential of delaying embryo development by using a chilling protocol. The study found that when chilling eggs for 24 hours at 10 °C and 80% relative humidity, the development is paused for a full day. This study presents a window of opportunity for embryo ages, approximately 38-58 hours post oviposition, where the hatch success is the least affected (>80% hatching when compared to control). Outside of this window, the hatch success decreases to 70% and lower. The description of embryo development can be used as a reference tool for quality control purposes. The effect of treatments on eggs can be determined by identifying key processes in development. Furthermore, the chilling of embryos and thus pausing of development can be applied in a production setting.
The effect of the use of indigenous knowledge-based Physics comics of Android-based marbles games on verbal representation and critical thinking abilities in Physics teaching
Authors: Damayanti Almira Eka , Kuswanto Heru
Published: September 2021

This research aims to reveal the effectiveness of the use of an indigenous knowledge-based physics comic of Android-based marbles games on verbal representation and critical thinking abilities. It is a quasi-experiment applying the pretest-posttest control group design. The research sample consists of two classes: the control and experimental classes, each of which consists of 35 students established using the cluster random sampling technique. The effectiveness of the indigenous knowledge-based physics comic of marbles games was analyzed using the quantitative method applying the effect size analysis. The result of the effect size analysis obtained from Cohen’s f in verbal representation ability is 0.11 interpreted as medium effect size and critical thinking ability is 0.43 interpreted as large effect size. This shows that the developed indigenous knowledge-based physics comic of Android-based marbles games in physics teaching gives effects to verbal representation and critical thinking abilities of the students. In other words, the developed comic is effective in improving verbal representation and critical thinking abilities.
Immersive Experience during Covid-19: The Mediator Role of Alternative Assessment in Online Learning Environment
Authors: Ong Mohd Hanafi Azman , Yasin Norazlina Mohd , Ibrahim Nur Syafikah
Published: September 2021

Covid-19 pandemic has changed the education landscape hence students’ learning experience. The conventional face-to-face classroom has transformed into a synchronous online mode with minimal digital readiness. In the immense situations during the acquisition of knowledge, their learning absorptive capacity may be disrupted. To unpick their learning proficiency and design complex interactivity, this paper considers a digital platform for structured learning activities. The study particularly examines how various factors are associated with students’ online learning experience, particularly during the pandemic. An online survey of 312 respondents who used the Blackboard online learning platform was conducted, and a PLS-SEM analysis indicated that an alternative assessment mediated the relationship of learning readiness, student engagement, and student motivation toward student learning experience simultaneously. Overall, our study reiterates the need to address the mediator role of alternative assessment to succeed in online courses.
#iteachmsu Centering an Educator Learning Community (ELC)
Authors: Skogsberg Erik , McDaniels Melissa , Shellgren Madeline , Stewart Patricia , Neal Makena
Published: September 2021

Many scholars recommend preparing faculty for educator roles. Faculty Learning Communities, The Scholarship of Teaching and Learning (SoTL), and teaching centers represent common preparatory approaches. But faculty and teaching assistants report time, disciplinary disconnects, and lack of incentives as ongoing barriers. Inspired by K-12’s professional learning networks and “hashtag activism,” the authors’ university launched #iteachmsu. #iteachmsu combines practices of social networking with a digital and in-person teaching “commons.” Through #iteachmsu, the authors hope to further shift campus cultures in the age of COVID-19, centering teaching and learning as a valuable and ongoing focus for an educator learning community (ELC).
Supporting Faculty as Writers and Teachers An Integrative Approach to Educational Development
Authors: Dufour Monique , Ahern-Dodson Jennifer
Published: September 2021

In this article, we explore how supporting faculty writers can also help them to become more effective teachers of writing in their disciplines. Based on over ten years of facilitating and studying faculty at our writing retreats, we demonstrate how understanding and improving their own writing experiences can spark insight into their students as writers. Furthermore, we suggest that helping faculty make this “turn to teaching” exemplifies the potential for an integrative model of educational development, one that leverages connections across faculty roles and responsibilities.
Gino Strada (1948-2021)
Authors: Monti Giorgio
Published: September 2021

What should be an Emergency Physician? A doctor and a man accustomed to extreme and courageous choices, able to decide quickly, capable of brilliant intuitions and strong standpoints, guided by great determination, self-awareness, enlightened by deep convictions and clear ideas, and an empathy that allows him to never lose his humanity and always know which side to stand on… I worked and had the privilege of being a friend of a great doctor with these characteristics. [...]
Communicating science in the time of Coronavirus: What we have learned
Authors: Barbieri Greta , Poggiali Erika , Salvatore Veronica , Salinaro Francesco
Published: September 2021

One of the greatest and most famous Greek philosophers, Socrates, believed that “here is only one good, knowledge, and one evil: ignorance”, but nowadays we can tentatively add that knowledge without sharing is like sterile ground. Today, social media play a central role not only in connecting people worldwide, but overall to access news and information, and for decision making. [...]
Steroids in severe COVID-19 patients: A retrospective analysis on the first pandemics in Lombardy
Authors: Vergnano Beatrice , Calcinati Serena , Signori Davide , Benini Annalisa , Pozzi Maria Rosa , Verga Luisa , Pizzagalli Jonata , Bonfanti Paolo , Bellani Giacomo , Foti Giuseppe
Published: September 2021

The pathogenesis of COVID-19 appears to be characterized by a dysregulated immune response. During the first pandemic wave in Lombardy, we started to administer glucocorticoids to some patients with severe respiratory failure requiring support with Continuous Positive Airway Pressure (CPAP) therapy. We retrospectively collected data to identify the effect of glucocorticoids in this COVID-19 particular population. With a multidisciplinary consensus, we administered to selected patients with severe COVID-19 disease (PaO2/FiO2 159±71 mmHg) 0,91 mg/kg/die of methylprednisolone equivalent dose after a median of 8 days of hospitalization. In our study we compared 57 patients from the steroid group with 123 from the control group: the event of invasive mechanical ventilation or death was reduced by 43% between steroid group and control group (19.3 % vs. 34.1 % respectively, p=0.001) and mortality was reduced by about 31% between steroid and usual care alone (15.8 % vs. 22.8 % respectively, p=0.011). Corticosteroids in selected COVID-19 patients may have a relevant impact on outcome, better profiling of the heterogeneity of this disease may be essential to guarantee the best treatment choices.
COMEPA (COVID-19 Medicina Policlinico Palermo): a study in hospitalized patients
Authors: The COMEPA group
Published: September 2021

Coronavirus disease 2019 (COVID-19) has dramatically changed our lives. In the past months, hospitals were saturated of patients; therefore, it is still important to have simple and standardized prognostic factors and to evaluate the efficacy and safety of medications commonly used for COVID-19. We aimed to collect data of the patients hospitalized in Internal Medicine and Geriatrics Wards at the University Hospital (Policlinico) ‘P. Giaccone’ in Palermo, Italy (COMEPA, COVID-19 Medicina Policlinico Palermo), with the main purpose of finding prognostic tools that can be easily used in clinical practice in order to identify patients hospitalized for/with COVID-19 at higher risk of negative outcomes, such as mortality, transfer to Intensive Care Unit (ICU) and institutionalization, as well as evaluating the efficacy/safety of medications commonly used for COVID-19. For reaching these aims, the medical records of approximately 600 patients will be recorded, having data on several parameters and including as outcomes mortality, ICU placement, institutionalization. With the COMEPA study, we therefore plan to update current literature, giving new data on prognostic factors and on the efficacy/safety of some medications used for COVID-19.
Molecular insights and clinical impacts of extracellular vesicles in cancer
Authors: Leetanaporn Kittinun , Hanprasertpong Jitti , Navakanitworakul Raphatphorn
Published: September 2021

Cell-to-cell communication is a pivotal aspect of cancer biology. Recently, extracellular vesicles (EVs) have been shown to play essential roles in intercellular communications between cancer cells and the surrounding microenvironment owing to cancer development. EVs are small membrane-bound vesicles secreted by various cells containing proteins, lipids, mRNAs, and non-coding RNAs (microRNAs and long non-coding RNAs), which contribute to cancer cell development and progression. Here, we provide an overview of current research direction on EVs, especially biomolecules in EVs, and also point out the novel diagnostics, monitoring, predicting, and therapeutic aspects using EVs against cancer.
Merged and harmonized data for the atlas of lake sediment geochemistry of western Labrador and northeastern Quebec
Authors: McCurdy M W , Amor S D , Garrett R G
Published: September 2021

Geochemical data for 21 678 lake-sediment samples, analysed for 53 elements by ICP-MS after aqua-regia digestion, were compiled to create an atlas of surficial geochemistry. Statistical tests and plots of the combined data, after the application of levelling
functions, where necessary, show that the differences that previously existed between analyses employing digestions of varying strengths can be largely compensated for. Using this combined dataset, integrated geochemical maps for an area of almost 300 000 km2 were published, revealing many
large-scale geochemical features. These features are related to the rocks of the Paleoproterozoic 'Labrador Trough', part of the New Quebec Orogen, or to the relative amounts of organic and inorganic clastic material in the lake sediment. The release of the merged data sets is expected to provide
assistance with geological mapping of this large area, as well as providing a stimulus for mineral exploration. By providing data in several formats, including the original raw data as well as levelled and/or smoothed data for some elements, we hope to encourage the use of these data and the
development of new methods for exploratory data analysis and visualization.
Sediment transport in the Canadian Beaufort Sea
Authors: Fissel D B ,   Arctic Sciences Ltd., Birch J
R
Published: September 2021

In this study, the transport and dispersal of sediments in the Canadian Beaufort Sea were examined in terms of the underlying physical mechanisms. Results of oceanographic, meteorological, hydrological and sediment studies for the region were reviewed and
summarized to provide a description of the physical environment. Analyses on the oceanic bottom boundary layer were carried out using existing data to examine the response of bottom currents to wind forcing and the correlation between suspended sediment concentrations with bottom currents. The
descriptive and analytical results were used to prepare a conceptual model of sediment transport in the Beaufort Sea and its relation to physical forcing mechanisms. From this model, a number of deficiencies in our present understanding were identified and discussed; recommendations for further
investigations are presented.
Association of sexually transmitted infection with semen quality in men from couples with primary and secondary infertility
Authors: Bai Shun , Li Yuan , Hu Mei-Hong , Wu Li , Shui Li-Jun , Wang Xiao-Han , Liu Yi-Xun , Yue Qiu-Ling , Yu Li-Na , Fu Kai-Qiang , Tong Xian-Hong , Hu Xue-Chun , Xu Bo
Published: September 2021

This study aims to compare the prevalence of sexually transmitted infections (STIs) with semen quality in men from couples with primary and secondary infertility. Semen samples were collected from 133 men who requested fertility evaluation. Seminal tract infection with Ureaplasma spp. (UU), Mycoplasma hominis (MH), Mycoplasma genitalium (MG), Chlamydia trachomatis (CT), Neisseria gonorrhoeae (NG), and herpes simplex virus-2 (HSV-2) was assessed by PCR-based diagnostic assays. Among all patients, the prevalence of STIs was higher in men from couples with primary infertility than that in men from couples with secondary infertility (39.7% vs 21.7%, P = 0.03). The prevalence of UU was 28.8% and 13.3% in men from couples with primary and secondary infertility, respectively. Men from couples with primary infertility were more likely to be positive for UU than men from couples with secondary infertility (P = 0.04). Regarding the UU subtype, the prevalence of Ureaplasma urealyticum (Uuu) and Ureaplasma parvum (Uup; including Uup1, Uup3, Uup6, and Uup14) did not differ between the two groups. No associations between the prevalence rates of MH, MG, and CT were found in men from either infertility group. A lower sperm concentration was associated with STI pathogen positivity in men with primary infertility according to the crude model (P = 0.04). The crude and adjusted models showed that semen volume (both P = 0.03) and semen leukocyte count (both P = 0.02) were independently associated with secondary infertility. These findings suggest the importance of classifying the type of infertility during routine diagnosis of seminal tract infections.