bluuebunny/crossref_metadata_2025 huggingface dataset:
"Toxicological Study of Ethanol Extract of Lavandula Stoechas on Kidney of Wistar Rat"
Authors: Modupe Builders Iretiola , Simeon Joseph Oyepata , Tosin Joseph Opeyemi
Published: September 2022

Introduction/Aim: Herbal products are medicinal agents obtained from plants. They are believed to have lesser tendency for side effect in spite of their numerous possible health benefits. Lavender (Lavandula stoechas L.) is a medicinal plant largely used for different medicinal purposes. The aim of this study is to determine the toxicological effect of Lavandula stoechas on the kidney of Wistar rats. Method: Animals of either sex were selected. Group 1 received distilled water (10 ml/kg), while group 2, 3 and 4 received Lavandula stoechas 50, 100 and 200 mg/kg respectively. Animals were kept in standard cages and given access to the extract, water and food orally for 28 days, after which they were weighed and sacrificed. Blood was collected by cardiac puncture and taken immediately for analysis. Result: There was significant (P<0.05) decrease in RBC, HGB, MCV, while there was no change in the level of neutrophiles, basophiles, eosinophiles and platelets. Lavandula stoechas, significantly (p<0.05) caused decreased K+ level at 100 and 200 mg/kg respectively. While there was significant (p<0.05) increase of Na+ at 200 mg/kg dose. Level of Creatinine, chloride and urea were not significantly (p<0.05) affected across doses administered. Histological study reveals slight tubular distortion. Conclusion: The result of the study showed that the plant could have slight effect on the kidney which suggests that the plant should be use with caution when taken for a sustained period of time. Histological study reveals slight tubular distortion.
Teacher Differences in Beliefs and Perceptions About Sustainable Agriculture: Influence on the Teaching of High School Agriculture Curriculum
Authors: Muma Mathew , Martin Robert , Shelley Mack
Published: September 2022

The purpose of the study was to determine agriculture teacher differences in beliefs and perceptions about sustainable agriculture (SA) and the associations of these with the teaching of SA in the 12 states of the Midwest US. A descriptive design using self-administered structured questionnaires with Likert measurements was adopted. A stratified random sample of 844 teachers were self-administered the questionnaires. Data were analyzed by ANOVA by comparing means and conducting post-hoc tests. Teachers who agreed and those who disagreed about SA beliefs had no statistically significant difference in their mean ratings of beliefs about SA. Those who were neutral and those who disagreed about SA beliefs had similar mean ratings. Teachers who agreed with SA beliefs and those who were neutral about SA beliefs had a statistically significant difference in their mean ratings of SA beliefs. All three of those groups taught SA topics to a moderate extent. This was not the case for teachers who differed about their perceptions of SA topics/practices. Therefore, teacher differences in beliefs about SA may or may not influence the teaching of SA topics. Teacher perceptions of selected SA practices only influenced the extent to which teachers taught SA. SA goals can be achieved via teaching to influence teacher knowledge, affect, cognition, behavior, and actions towards SA. Teacher professional development needs can be identified from their differences in perceptions about SA practices. An education approach promoting the building of bridges among different perspectives about SA and systems teaching-learning can help to achieve SA goals.
Development of a Spiritual Leadership Training Courses for Religious in Preparing to Be Educational Administrators in Thailand
Authors: Meesri Chalermsri , Amornkitpinyo Pimprapa , Na-soontorn Taneenart
Published: September 2022

The objectives of this study were to: 1) construct a training course of spiritual leadership for those preparing to become administrators in Catholic schools in Thailand; 2) implement and utilize the training course, and 3) analyze, evaluate and enhance the training course. The sample used in this research was 32 young participants who were preparing themselves to be the administrators of Catholic schools in Thailand. The research steps were: 1) the requirement assessment, 2) training course development, 3) the training course experiment, and 4) training course optimization. This is a research and development project. The methodologies used in this study were the cognitive and attitude test, semi-structured interviews and the suitability evaluation form of the training course. The findings of this study can be summarized as follows: 1) The training course in spiritual leadership to prepare administrators of Catholic schools in Thailand consists of five modules: 1. Towards a theory of spiritual leadership, 2. Vision, 3. Altruistic love, 4. Faith and hope, and 5. Example of success; 2) the results of the experiment revealed that after completing the training course, the religious participants who had prepared themselves to be Catholic school administrators in Thailand got higher scores on cognitive and attitude tests, with total scores in the evaluation reaching 4.76 (the highest level); 3) the training course was improved by extending the training session from two days to three days, and conducting a bilingual PowerPoint presentation.
Legal Protection of Children from Mixed Marriage Living in Indonesia
Authors:   Jakarta university, Putri, SH., MH Elfirda Ade
Published: September 2022

Marriage is a legal bond between a man and a woman for a long time. Mixed marriages are marriages between two people in Indonesia subject to different laws, due to differences in citizenship and one of the parties is a citizen of Indonesia. The research entitled Legal Protection of Children from Mixed Marriages Living in Indonesia was conducted to know how the status of children born from mixed marriages according to Law Number 1 of 1974 concerning Marriage and Legal Protection for children about civil rights as a result of mixed marriages according to Law Number 1 of 1974 concerning Marriage and Law Number 12 of 2016 concerning Citizenship. This study uses a normative juridical research method, which concludes that children born from mixed marriages get guaranteed legal certainty according to Law Number 12 of 2016 concerning Citizenship in terms of citizenship status because they have lived in Indonesia for at least 5 (five) consecutive years come along. Then the child also gets his civil rights, namely the right to know his origin, the right to get maintenance and education from his parents, the right to be represented in all legal actions inside and outside the court, and the right to take care of the child’s property, as well as the right to inherit. The results of this study are expected to provide legal protection for children about civil rights resulting from mixed marriages.
Emissions of Volatile Organic Compounds from Dairy Cattle Manure in a Cattle Shed in Japan
Authors: Aizawa Arika , Miyazaki Akane , Tanaka Nobuyuki
Published: September 2022

The livestock industry is a major source of atmospheric volatile organic compounds(VOCs), but details on these emissions are not well documented in Japan. In particular, it remains unclear how the rearing method affects the emissions of VOCs from livestock, which originate primarily from feces and urine. Here we aimed to estimate the amounts of VOCs emitted from the feces and urine of tethered Holstein dairy cattle in a cattle shed in Japan. Dimethyl sulfide and acetone accounted for about 60% of the total VOCs emitted from feces, followed by formaldehyde and acetaldehyde. Also, dimethyl sulfide and acetone were the dominant VOCs emitted from urine, accounting for 90% of the total VOCs. The VOCs from manure were considered to be emitted between the excretion and removal of the manure during the cleaning of the shed. As a result of analyzing images from three cameras installed in the shed, the average time between excretion and cleaning during the daytime (8:00 am–5:00 pm) was 80 min for feces and urine, whereas at night (5:00 pm–7:00 am), the average time between excretion and cleaning was 480 min. Based on the above findings, the emissions of VOCs in the interval between excretion and cleaning of the shed were estimated. As a result, the emissions of VOCs from feces and urine per head of cattle in the shed were estimated to be 1.75 and 1.52 g day−1, respectively. Furthermore, contribution of VOCs emitted from manure to odor activity value (OAV) and hydroxyl radical reactivity (OHR) were also estimated. Volatile fatty acids and sulfur compounds emitted from feces estimated to have high contribution to OAV, whereas aldehydes contributed mainly for OHR from manure.
Elevated CO2 Could Reduce Spikelet Fertility and Grain Appearance Quality of Rice(Oryza sativa L.) Grown under High-temperature Conditions
Authors: Yamaguchi Masahiro , Kamiya Shoma , Kokubun Dai , Nakayama Tomoki , Yonekura Tetsushi , Kohno Yoshihisa
Published: September 2022

Two Japanese rice cultivars with different heat-tolerance, Hinohikari (sensitive) and Nikomaru (tolerant), were grown in pots inside open-top chambers and exposed to ambient CO2 (400 µmol mol−1) or elevated CO2 (550 µmol mol−1) from the beginning of the tillering stage to maturity. The study was conducted in Nagasaki, in the Kyushu region of Japan, where heat stress on rice has become increasingly evident. Although elevated CO2 significantly improved the net photosynthesis and whole-plant growth of the cultivars, there were no significant effects on grain yield, which in turn reduced harvest index. In both cultivars, adverse effects occurred with elevated CO2, such as reductions in spikelet fertility and grain appearance quality, which are typical manifestations of heat stress in rice. During the flowering period, the air temperature was high that spikelet fertility was reduced even under ambient CO2 conditions for both cultivars. These results suggest that, under high-temperature conditions, elevated CO2 could induce or exacerbate the manifestations of heat stress in rice. Because transpiration rate in the flag leaf was significantly reduced by the exposure to elevated CO2, it is possible that elevated CO2 increased plant temperature via a reduction in transpiration during flowering period, although we did not detect significance of the increase in leaf and panicle temperature. To ensure a more confident conclusion, further studies focusing on the effects of elevated CO2 on the determinants of spikelet fertility and grain appearance quality with other cultivars in different year are required.
Comparison of the Chemical Characteristics and Toxicity of PM2.5 Collected Using Different Sizes of Cyclones
Authors: Alimov Zikrilla Bobamuratovich , Youn Hyunwoo , Iwata Ayumi , Nakano Kohei , Okamoto Takuma , Sasaki Ayaha , Katori Takuya , Okuda Tomoaki
Published: September 2022

Cyclone sampling devices have been helpful in assessing the toxic effects of fine particulate matter (PM2.5). The particle collection efficiency of sampling devices is critical. This study investigated the effect of cyclone size on particle size, chemical composition, and particle toxicity. Three cyclones with different inner diameters (12–68 mm) were tested for penetration using an aerodynamic particle sizer, fluorescent polystyrene latex, and a differential mobility analyzer. The elemental and water-soluble ion compositions of the particles collected by different cyclones were compared. An evaluation of the particles’ toxicity was conducted by comparing the results of dithiothreitol (DTT), limulus amebocyte lysate (LAL), and cell exposure assays. The experimental evaluation showed a 50% cut-size of the cyclones between 0.17–0.28, 0.34–0.36, and 0.70 μm for the small, medium, and large cyclones, respectively. To collect PM2.5 and evaluate separation performance in the real environment, the small and large cyclones were selected according to the particle penetration and flow rate. A comparison of chemical composition and enrichment factor values found that the particles in the small cyclone samples contained smaller and more anthropogenic sources than those in the large cyclone samples. The oxidative potential (OP) measured by the DTT assay of the samples collected using the small and large cyclones differed across sampling periods and associated with the transition metals. The viability of human epithelial A549 cells after exposure to the collected particles using the cyclones was different across sampling periods and associated with OP. The endotoxin concentrations measured in the LAL assay were found only in the large cyclone samples; they affected the estimated level of cytokine based on IL(interleukin)-6 release from human leukemia monocytic (THP-1) cells derived macro-phage-like cells. Regardless of the size, the cyclone techniques used in this study to collect aerosol particles would be a powerful tool for a detailed evaluation of particle toxicity.
Ultrasonographic Follow-up of Uveitis and Arthritis with Golimumab in a Patient with Peripheral Spondyloarthritis: Case Report
Authors:   Professor Doctor of the Postgraduate Program in Health Sciences and Rheumatology/Ultrasonography Service, Puc-Campinas-SP Brazil., Mendonça José Alexandre
Published: September 2022

Ocular ultrasonography has been an important imaging method to assess the the vitreous humor inflammatory process in patients with arthritis. The aim of this study was to evaluate the use of ultrasound in the monitoring of eye and joint treatment with golimumab.
Fibroma of perineum, a rare entity in children: Two congenital cases
Authors:   Pediatric Surgery Unit, Department of Pediatrics, Hospital de la Santa Creu i Sant Pau. Universistat Autònoma de Barcelona, Spain, Ilaria Goruppi , Federica Bianchi ,   Pediatric Surgery Unit, Department of Pediatrics, Hospital de la Santa Creu i Sant Pau. Universistat Autònoma de Barcelona, Spain, Nuria Brun Lozano ,   Pediatric Surgery Unit, Department of Pediatrics, Hospital de la Santa Creu i Sant Pau. Universistat Autònoma de Barcelona, Spain, Carlos Leganés Villanueva ,   Pediatric Surgery Unit, Department of Pediatrics, Hospital de la Santa Creu i Sant Pau. Universistat Autònoma de Barcelona, Spain, Nicola Zampieri ,   Woman and Child Hospital, Department of Surgery, Dentistry, Paediatrics and Gynecology; Division of Pediatric Surgery, University of Verona, Spain., Susana Boronat Guerrero ,   Department of Pediatrics, Hospital de la Santa Creu i Sant Pau, Universistat Autònoma de Barcelona, Spain.
Published: September 2022

Two cases of perineal polypoid-like lesions in children are described. The first patient is a 21 months old girl with a congenital perianal pedunculated asymptomatic lesion, covered by normal skin, not increased in size since birth (Figure 1). A MRI showed a lesion localized at right side of median raphe, in contact with external anal sphincter, without any apparently fistula and no dystrophy of raphe or sacrum (Figure 2). A surgical resection was performed. Histological examination revealed a soft fibroma. Post-operative period did not presented complications or recurrence. The second patient is a 7 months old girl derived to Pediatric Surgery Department of Verona Hospital for the presence of a mass localized in the left labium majus (Figure 3). The lesion was soft, pedunculated, asymptomatic and it has been increased in size since birth.
Review of nigerian medicinal plants used in the management of diabetes mellitus
Authors:   University of Maiduguri, Faculty of Science, Department of Biochemistry, Maiduguri, Nigeria., Kurmi Usman Garba , Zahir Adina ,   (DVM) Doctor of Veterinary Medicine, University of Veterinary and Animal, Lahore Pakistan., Musa Abbas ,   University of Maiduguri, Faculty of Science, Department of Biochemistry, Maiduguri, Nigeria., Iyadunni Adesanya Deborah ,   Federal University of Agriculture, College of Food Sciences and Human Ecology (COLFHEC), Food science and Technology, Abeokuta, Nigeria., Patel Parth K ,   H.K. College of Pharmacy, Jogeshwari (W), Maharashtra, Mumbai-400102, India., Chukwuemeka Prosper Obed ,   Federal University of Technology Akure, School of Sciences (SOS), Department of Biotechnology, Akure, Nigeria, Tomsu Usman Audu ,   University of Maiduguri, Faculty of Science, Department of Biochemistry, Maiduguri, Nigeria.
Published: September 2022

Diabetes mellitus is a cohorts of disorders involves transformed of insulin dysfunction which lead to high blood glucose levels. Generally diabetes mellitus is a long term disorder in which blood glucose concentration is raised from the normal range leading towards complications. Extensive research over the last 20 years and further physiological evidence of diabetes mellitus has been revealed. Herbals that can improve insulin resistance, activate and augment insulin receptors in the red blood cell are those used to treat and control diabetes mellitus. Strikingly, the extraction of herbal plants and medicines based on these pathways, including those that were attributable in Islamic civilization have been recorded as mediating their influence.
Congenital Neuroblastoma: A Case Report
Authors:   Depertment of General pediatric, pediatric care., Saqoub Mohammed Al , Alkhattabi Fadiah ,   Cardiovascular Research Program, King Faisal Specialist Hospital & Research Centre, Riyadh, Saudi Arabia, Kabbani Alaa M. ,   Cardiovascular Research Program, King Faisal Specialist Hospital & Research Centre, Riyadh, Saudi Arabia, AlRukby Judy ,   Cardiovascular Research Program, King Faisal Specialist Hospital & Research Centre, Riyadh, Saudi Arabia
Published: September 2022

Neuroblastoma (NB), a tumor of primitive neuroectodermal cells, is diagnosed exclusively in children and is the third most common childhood cancer and the most common neonatal malignancy that accounts for >20% of neonatal cancer [1]. The presentation of NB can vary widely, as it could spontaneously regress, mature to a benign ganglioneuroma, or metastasize aggressively. NB occurring in the perinatal period frequently carries a good outcome with most of the tumors carrying normal MYCN copy number and hyperdiploid DNA index [2]. The mean age at diagnosis is 17.3 months, however a review of the literature revealed a sparsity of data reported on congenital cases of adrenal neuroblastomas with in-utero liver metastasis. We describe a case of a female infant born at full-term in June 2018 with Congenital Neuroblastoma on the right adrenal along with extensive metastatic deposits on the liver.
CONSUMER BEHAVIOURS IN THE ORGANIC FOOD MARKET
Authors: Smoluk-Sikorska Joanna
Published: September 2022

The paper’s objective is to define the consumption patterns in the organic food market in Poland. Therefore, in 2019, a questionnaire survey among 204 organic food consumers was carried out. The survey covered reasons for organic food purchases, places of purchase, purchase frequency, barriers to this purchase, and willingness to pay. The research results show that the investigated consumers were mostly young women (aged up to 40 years) with monthly incomes between 2,001 and 4,000 PLN per person in a household. On average, the surveyed had been present in the organic food market for about 4 years, and their expenditures on food mainly constituted about 20% of the total food expenditures. From the variety of reasons for buying organic food, the ones of egoistic character dominated, i.e., high quality of products, lower content of agricultural chemicals, belief in a higher content of nutrients, followed by altruistic motives, i.e., a positive impact on the environment or ethical production motives. The respondents most often and more regularly bought products with a shorter shelf life, i.e., organic vegetables and fruits, eggs, bread, and cereal products, and less frequently, more durable products. Fish, meat products, and meat were relatively rarely purchased. Among the places where the organic food was purchased, specialized stores and outlets of commercial networks prevailed. The most critical barrier for the respondents is still the high price of organic products.
Sorg og røy­king påvirker utviklingen av periodontitt
Authors: Breivik Torbjørn Jarle
Published: September 2022

Torbjørn Jarle Breivik disputerte 3. mai 2002 for den odontologiske doktorgrad ved Universitetet i ­Oslo med avhandlingen «Brain-neuro-endocrine-immune interac-

tions in periodontal disease». Bedøm­melseskomiteen bestod av professor, dr.odont Roland Jonsson, Broegelmanns forsk­ningslaboratorium, Universitetet i Bergen, overlege dr.med. Karl Ludvik Reichelt, Pediatrisk forsk­ningsinstitutt ved Rikshospitalet, ­Oslo og professor, dr.odont Nils Jacobsen, Det odontologiske fakultet, ­Oslo
Tannhelsesituasjonen i Norge – holder prognosene for tannhelseutviklingen?
Authors: Haugejorden Ola
Published: September 2022

Formel: p1 = po/(1 + r)j

po= rate i basisåret (to)

p1= rate ved tidspunktet t1

r = årlig endringsrate

j = fremskrivningsperiodens lengde i år

Eksempel:

For Po= 20 %, p1= 14 % og j = 10 år, får vi:

14 = 20/(1+r)10 som gir

r = 0,0363, eller 3,63 % p.a.
Behandlingsmöjligheter vid tandvårdsrädsla hos barn och vuxna
Authors: Berggren Ulf , Willumsen Tiril , Arnrup Kristina
Published: September 2022

Kommunikation   Struktur

Tillit        Mål och delmål

Empati       Förutsägbarhet

Delaktighet     Kontroll

Information    Positiv förstärkning

Vägledning      Gradvis exponering

Ångestdämpning åstadkommes genom tandläkarens inställning och beteende.

Systematisk desensibilisering

Påverkar rädsla genom träning i att bibehålla intränad avspänning medan man går igenom en individuellt anpassad «trappa» av tandvårdssituationer med successivt ökad svårighetsgrad.

Vanligt förekommande träningshierarkier vid system-atisk desensibilisering

Generell hierarki:

Specifik hierarki (Exempel «ta bedövning»):

1. Ringa och beställa tid

1. Sprutan (med kanylskydd) på avstånd

2. Åka till kliniken

2. Sprutan på brickbordet (med och utan kanylskydd)

3. Sitta i väntrummet

3. Sprutan (med kanylskydd) närmas ansiktet

4. Sitta i stolen

4. Sprutan (med kanylskydd) berör läpp/mungipa

5. Undersökning

5. Sprutan (med kanylskydd) berör gingivan

6. Ta bedövning

6. 3 – 6 upprepas utan kanylskydd (ev ytanestesi)

7. Borrning

7. «prickning» av gingivan

8. Tandextraktion

8. mindre mängd lokalanestesi lägges

Kognitiv omstrukturering

Patientens «interna dialog» som ofta innebär katastroftankar förändras genom information och diskussion

Kognitiv beteendeterapi

Påverkar rädsla genom att patientens tidigare dysfunktionella tankar och beteenden utvärderas och modifieras till att bli mer realistiska och ändamålsenliga. «Beteendeexperiment» och information om t.ex. rädsla och tandvård är viktiga inslag
Utredning og diagnostikk ved munntørrhet belyst ved kasuistikker
Authors: Birkeland Jan Magne , Marthinussen Mihaela Cuida , Løkken Per
Published: September 2022

Ved tannpuss med fluortannkrem bør etterskylling med vann begrenses eller utelates fordi skylling kan svekke den kariostatiske effekten av fluorid. Dette er spesielt viktig hos munntørre pasienter med lite hvilesaliva samt spytt med lavt pH og dårlig bufferkapasitet.
Små nasjonale tidsskrifter – har de noen fremtid?
Authors: Nylenna Magne
Published: September 2022

Tidsskrift for Den norske lægeforening har nylig feiret sitt 125-årsjubileum. I en artikkel i jubileumsnummeret har Tidsskriftets tidligere redaktør, Magne Nylenna, satt søkelyset på de små nasjonale tidsskrifters rolle i en internasjonal forskningsverden, et tema og en problemstilling som også er aktuell for Tidendes lesere.

«Den ansvarshavende redaktør har det personlige og fulle ansvar for bladets innhold,» heter det i Redaktørplakaten, som regulerer forholdet mellom eiere/utgivere og redaktører i Norge. «Editors-in-chief should have full authority over the editorial content of the journal,» heter det i en erklæring fra World Association of Medical Editors. Det er tidsskriftets ansvarlige redaktør som i siste instans bestemmer hva som skal komme på trykk og hva som ikke skal komme på trykk.

Dette gir redaktøren en viktig og vanskelig posisjon. Presset fra bladets eiere og andre interessenter kan til tider være betydelig, og redaktørrollen er utsatt. Når tidsskriftredaktører avgår uten at det er åpenbare, «naturlige» grunner til det, spekuleres det ofte rundt mulige konflikter med eierne. De generelle medisinske tidsskriftene er sannsynligvis mer utsatt for slike konflikter enn spesialtidsskriftene på grunn av nyhets- og debattstoffet. Erfaringen viser at legeforeninger neppe behandler sine redaktører bedre enn kommersielle utgivere.

En sjelden gang blir nemlig redaktøravganger knyttet til enkeltartikler som tidsskrifteierne misliker, og da gjerne i medlemstidsskrifter. I januar 1999 ble George D. Lundberg avskjediget som redaktør av JAMA etter å ha publisert en artikkel om collegestudenters sexdefinisjon. I november 2005 ble Vilhjalmur Rafnsson avsatt som redaktør av Læknabladid etter å ha publisert et innlegg med kritikk av deCode-lederen Kári Stefansson.

Slike episoder svekker troverdigheten ved hele den medisinske faglitteraturen. Kan man stole på at det ikke er frykt for tidsskrifteiernes reaksjoner og vern om egen jobb som fører til refusjoner, men at det er manuskriptenes kvalitet og relevans og lesernes interesser og behov som er avgjørende?
Kontaktallergi i munnhulen
Authors: Morken Tore , Gjerdet Nils Roar
Published: September 2022

Objektive forandringer i munnslimhinne, klinisk forenlig med kontaktreaksjon eller lichenoid reaksjon og topografisk relatert til tannrestaureringer

Utbrudd av eksem i forbindelse med tannbehandling der annen etiologi ikke er påvist

Klinisk begrunnet mistanke om kontaktallergi (allergisk kontakteksem) mot en substans som planlegges brukt i tannbehandling
Bruk av importerte tanntekniske tjenester
Authors: Gjerdet Nils Roar , Kaldestad Agnete Norheim , Toklum Tina Foseide
Published: September 2022

Hovedbudskap

•

Bruk av importerte tanntekniske tjenester er vanlig blant tannleger i Norge, men varierer avhengig av geografi og type praksis.

•

Tannleger er generelt fornøyd med tjenestene.

•

Kommunikasjon og materialvalg er de vanligste ankepunktene i forbindelse med importerte tanntekniske arbeider
Dental implantatbehandling – pasientvurdering og behandlingsplanlegging
Authors: Størksen Kjell , Neppelberg Evelyn , Midtbø Marit , Gjengedal Harald
Published: September 2022

Benstøtte

Korrekt kirurgisk teknikk

Korrekt implantatplassering

Kontaktpunktets utforming

Kroneform
Unødvendig med såpe i tannkrem
Authors: Haram Guri
Published: September 2022

Et annet navn for after er residiverende aftøs stomatitt (RAS).

RAS er den vanligste slimhinnetilstanden som inkluderer sår i munnen.

After er aldri væskefylte og de finnes hovedsakelig på ikke-keratinisert slimhinne i motsetning til herpes simplex sår.

Det er tre forskjellige typer after. De fleste har minor typen som er under 10 millimeter i diameter og som tilheler i løpet av 1 - 2 uker. En annen variant er major typen som gir dype og svært smertefulle sår, kan etterlate seg arr og tilheler over flere uker. Disse kan derfor være vanskelig å skille fra et kreftsår. Herpetiform er en tredje type der pasienten utvikler multiple sår opptil 100 på én gang

Herpetiform type kan man ha overalt i munnhulen, mens de andre typene er på ikke-keratinisert slimhinne.

After debuterer normalt i alderen 10 til 19 år.
Endringer i de unge voksnes tannhelse – hvor stort er deres behandlingsbehov?
Authors: Grytten Jostein , Pervaiz Maryam , Rongen Gunnar , Skau Irene
Published: September 2022

Hovedbudskap

Tannhelsen er god blant de studentene som er undersøkt/behandlet ved SiO Helse Tannlege i perioden 2007–2018.

Det har vært en nedgang i andelen studenter med ny behandlingskrevende karies i hele perioden, nedgangen var størst for årene 2007–2011.

For de som trengte behandling, var behandlingsomfanget uendret og relativt lavt i hele perioden 2007–2018.

Tannhelsesituasjonen blant studentene bør tas med i dimensjoneringen av tannhelsetjenesten i tiden framover.
Re-osseointegrasjon av et mobilt implantat – En kasuistikk
Authors: Strøm Eivind , Leknes Knut N.
Published: September 2022

Hovedbudskap

Diffuse smerter ved et implantat kan være symptom på okklusal overbelastning.

Ved tap av osseointegrasjon der okklusal overbelastning fremstår som etiologisk faktor, er det indikasjoner på at mobile implantater kan stabiliseres via avlastning.

Avlastningsperioden må sannsynligvis være på minst 6–8 måneder.

Tidlig diagnose synes å være avgjørende for et varig resultat.
Drømmen om nye tenner
Authors: Jacobsen Nils , Khan Qalbi , Hensten Arne
Published: September 2022

Hovedbudskap

Tannleger har lenge vært opptatt av muligheten for å gjenskape et tredje sett av tenner.

Basalforskerne kjenner mange detaljer i tannutviklingen, men gjenskaping av humane tenner synes å være langt unna virkeligheten.

Regenerasjon av enkeltkomponenter kan være mulig.
Risiko og forebygging av oral sykdom blant eldre
Authors: Strand Gunhild Vesterhus , Kvalheim Siri Flagestad
Published: September 2022

Klinisk relevans

Tanntap er ikke aldersbetinget – men aldersrelatert. Eldre har en økt risiko for å utvikle orale helseproblem.

Å identifisere risikopasienter er vesentlig. Innsikt i hvordan sykdomsrisiko varierer fra individ til individ er grunnlaget for et fleksibelt innkallingsintervall basert på den enkeltes behov (kariesaktivitet, helseproblem, munntørrhet, evne til egenomsorg, kompliserte protetiske konstruksjoner etc).

Oftest blir kostnadene til reparasjon i form av menneskelige og økonomiske ressurser betydelig større enn ved de forebyggende tiltakene som rutinene beskriver.

Konsekvensene av manglende vedlikehold er velkjente: tap av tenner, dårligere oral og generell helse, sosial stigmatisering, ernæringsproblem, smerter etc.

Forebygging er best – og billigst.
Kraniofaciale og orale senskader etter behandling av barnekreft
Authors: Wojcik Dorota Malgorzata , Sivertsen Tine Birkeland , Løes Sigbjørn , Midtbø Marit
Published: September 2022

Hovedbudskap

To av tre barn har senskader etter kreftbehandling

Lav alder og aggressiv behandling øker risikoen for orale senskader

Munnhulen må være sanert når kreftbehandling påbegynnes. Risiko for karies, infeksjoner og slimhinneproblem under kreftbehandling er stor

Orale senskader er en oversett årsak til redusert livskvalitet

Oppfølgingen av orale senskader etter barnekreft må systematiseres og forbedres
Sementeringsprosedyrer for permanente indirekte restaureringer
Authors: Schriwer Christian , Rønold Hans Jacob
Published: September 2022

Hovedbudskap

Gjennomtenkt valg og sementeringsprosedyrer påvirker det estetiske og funksjonelle sluttresultatet.

Det store mangfoldet av restaureringsmaterialer og sementer på markedet i dag krever god kunnskap for riktig bruk på rett indikasjon.

Valg av sement bør gjøres opp mot valgt materiale som oppfyller de kliniske forhold og pasientens forventninger.

De forskjellige sementenes komplekse kjemi gjør det viktig å følge bruksanvisningen.

Konvensjonelle resinsementer krever gode tørrleggingsforhold.
Alternative søtningsmidler: Egenskaper, bruksområder, sikkerhetsaspekter og helseeffekter – Del 1: Sukkeralkoholene
Authors: Giertsen Elin , Bakken Torunn Birkeland , Bergesen Guri Høgenæs , Aas Anne-Marie
Published: September 2022

Hovedbudskap

Det finnes sukkeralkoholer som er gode sukker­erstatninger i matvarer, tyggegummi, pastiller, godterier, sjokolade, bordsøtningsmidler, medika­menter, vitamintabletter/kosttilskudd, og flere egner seg til matlaging og baking.

Personer med stor kariesaktivitet eller høy kariesrisiko kan dra spesielt god nytte av å innta sukkerfrie varer som tyggegummi, pastiller, drops og andre søtsaker som ofte inntas mellom hovedmåltider, samt å bruke suketter i kaffe og te, for å redusere antall daglige kariogene syreangrep på tennene.

Sukkeralkoholer kan gi mage-tarm plager hos noen og utelukkes i lav-FODMAP kost hos de som får diagnosen irritabel tarmsyndrom, men fettsyrene som produseres ved nedbryting av sukkeralkoholene i tykktarmen kan ha flere positive helseeffekter.
Den nye klassifikation af parodontitis
Authors: Holmstrup Palle , Bunæs Dagmar , Gürsoy Mervi , Lundberg Pernilla
Published: September 2022

Klinisk relevans

Det er indlysende, at en korrekt diagnose er en forudsætning for optimal behandling. Sammenlignet med tidligere klassifikationer rummer den nye parodontitisklassifikation en mere præcis beskrivelse af de forandringer, der sker i parodontiet. Klassifikationen er baseret på den nyeste viden, og den anvendes i de førende videnskabelige tidsskrifter og lærebøger såvel som ved præ- og postgraduat undervisning i parodontologi. Det er derfor vigtigt, at tandlæger i de nordiske lande er fortrolige med den nye klassifikation og anvender den i deres daglige arbejde.
Komplikasjoner etter kjevebrudd behandlet ved Haukeland universitets-sjukehus 2015–2020
Authors: Kolberg Hilde Mei , Antonipillai Infanta , Løes Sigbjørn , Pedersen Torbjørn Ø.
Published: September 2022

Hovedbudskap

Komplikasjoner etter kjevebrudd forekommer hyppig.

Infeksjoner, sensibilitetsendringer og subjektive bittforandringer er de vanligst rapporterte komplikasjonene.

Brudd i tannbærende deler av underkjeven er forbundet med høy risiko for postoperativ infeksjon.
Multilagszirkonia – optiske og mekaniske egenskaper
Authors: Andersen Freya S. , Ruud Amund
Published: September 2022

Hovedbudskap

God kunnskap om dental zirkonia er viktig for å gjøre gode materialvalg

I dag er både farge- og styrkesjiktet zirkonia tilgjengelig på det norske markedet

Translusens og bruddstyrke varierer med yttriainnhold

Produsentene bruker forskjellige innfargingsstrategier
Studentmobilitet
Authors: Åstrøm Anne Nordrehaug , Kronenberger Christine
Published: September 2022

Hovedbudskap

En overveiende andel av tredje- og fjerdeårsstudenter ved integrert master i odontologi ønsker mer informasjon om utveksling i studietiden.

Mange studenter mener at utveksling er spennende og sosialt berikende, mens andre mener at de kan gå glipp av læring

Lærerne ved klinikkene ved instituttet etterlyser strukturerte tilbakemeldinger fra utreisende studenter og tydelige retningslinjer for opplæring av innreisende studenter.

Informasjonsarbeidet blant studenter og lærere må styrkes.
Combined Effects of Waste Glass and Nano-Silica Powder on Workability, Durability and Mechanical Properties of Fiber- Reinforced Self-Compacting Mortar
Authors:   Shahrood University of Technology, Monazami Maryam , Jandaghi Alaee Farshid , Abedian Ashkan
Published: September 2022

This research aims to combine the effects of waste glass and Nano-silica powder on the properties of fiber-reinforced self- compacting mortar. A detailed study was undertaken to investigate the effect of different glass powder contents as cement replacement on the behavior of mortar. For this purpose, Portland cement was partially replaced by 10%, 15%, and 20% waste glass powder alone, and then in combination with 2% substitution levels for Nano-silica. The amount of water-binder ratio and cementitious materials content were considered constant. Fresh properties of specimens were determined using slump flow, and vfunnel flow time tests, mechanical properties were determined by compressive strength, and tensile strength tests, and durability characteristics evaluated by water absorption, and resistance to sulfuric acid attack. Microstructural morphology of specimens was also assessed by scanning electron microscopy. It was observed that the workability slightly decreased and improved mechanical and durability properties could be achieved. The SEM micrographs illustrated more densified pore structure of the mortars containing waste glass powder which leads to increase in strength and durability of specimens.
A GROUPING METHOD TO MINIMIZE SURPLUS PARTS IN SELECTIVE ASSEMBLY
Authors:   Le Quy Don Technical University, Phan Hoang Cuong
Published: September 2022

Selective assembly is an assembly method that can achieve high accurate assembly even from the low level of accuracy of manufacturing parts; however, this always exists surplus parts, especially when the clearance or interference fit requirements vary in a given range. This paper presents a method in place of reducing surplus parts based on shifting the mean dimensional values and then grouping the mating parts based on their dimension tolerance and assembly characteristic. Examination case study of piston-cylinder assembly shows that by implementing this method, the percentage of surplus parts is reduced considerably (from 40.65% and 26.18% to 2.63%) and the clearance variation is minimized in comparison with the traditional ones. This method can be applied to manufacture and assemble products with high accuracy.
EFFECT OF DEFORMATION AND DUAL-PHASE TREATMENT ON MECHANICAL PROPERTIES OF A LOW CARBON STEEL
Authors:   Institute of Technology, General Department of Defense Industry, Le Van Long
Published: September 2022

The low carbon steels have good ductility that is favorable for forming but their low strength leads to limiting their application to structures. This paper studies on improving strength of low-carbon steel via rolling deformation and dual-phase treatment. The results show that the dual phase treated steel has a combination of superior strength and good ductility. The tensile ultimate strength of dual phase treated steel reaches 740 MPa with fracture elongation of over 15%, while that of the cold rolled steel only reaches 700 MPa with fracture elongation under 3%.
NUMERICAL INVESTIGATION OF MICROSTRUCTURE EFFECT ON ACOUSTIC PROPERTIES OF UNDERWATER ANECHOIC COATINGS
Authors:   Le Quy Don Technical University, Trinh Van Hai
Published: September 2022

This paper presents a simulation-based model for predicting the acoustic properties of underwater anechoic structures with its main layer made of viscoelastic sound absorbing materials including air-filled cavities. Some preliminary numerical results are first compared with the published analytical and experimental data to validate the proposed modeling. Then, a developed design of anechoic using two arrays of air-filled bubbles is considered. It is observed from the investigation results that the new coating shows an interesting sound absorbing performance (i.e., absorbing > 80% incident energy in a large frequency range 25 MHz) compared with the original one having a single air cavity array. The developed structure allows broadening and tailoring their acoustic performance (peak frequency and averaging level) by tuning some microstructural parameters of the air-filled cavity (shape and size) and its distribution (location and fraction).
SYNTHESIS OF A RADAR RECOGNITION ALGORITHM WITH ABILITY TO MEET RELIABILITY OF DECISIONS
Authors:   Le Quy Don Technical University, Nguyen Hoang Nguyen
Published: September 2022

This paper is devoted to the variant of synthesis of a radar recognition algorithm with the ability to meet reliability of decisions. The algorithm is based on the theory of sequential analysis in combination with flexible change in the level of the classification detail when the observation time cannot be increased. Compared with one-step algorithms, the proposed algorithm allows guaranteeing “the posteriori probability of decisions is not smaller than the set value”. The proposed algorithm can be used in radar target recognition systems.
THE STUDY OF THERMAL STABILITY OF DNA DUPLEX ON NANOPARTICLE-BASED PLATFORMS: A METHOD FOR BIOSENSING APPLICATIONS
Authors:   Le Quy Don Technical University, Tran Anh Quang
Published: September 2022

In this research, a new method for DNA detection is proposed by studying the thermal stability of DNA duplexes modified on the nanostructured platform. The nanostructures are fabricated by using the block copolymer nanolithography method to form ordered arrays of gold nanoparticles on the silicon substrate. The thermally induced denaturation of the DNA duplex on the sensing part is monitored to determine the heat transfer property (thermal resistance) at the solid-liquid interface. An about 50% change in the thermal resistance during the DNA denaturation has fairly confirmed the feasible working of the sensing platform. The sensitivity, selectivity, and repeatability of the DNA biosensor are also evaluated by analysing the thermal resistance behaviour during thermal induction cycles. For the first time, a label-free, cost-effective, and easy data read-out DNA sensing method is developed in comparison with conventional fluorescence techniques.
CONTOUR DESIGN FOR SOLID-PROPELLANT ROCKET-ENGINE NOZZLE
Authors:   Le Quy Don Technical University, Nguyen Minh Phu
Published: September 2022

In this paper, the characteristic line method is used to establish the equation describing the nozzle diverging contour. The converging contour of the nozzle is built according to the Witoszynski formula. Numerical calculation is applied to the 9M22Y uncontrolled rocket. The new nozzle design length reduced by 27.50%; the maximum thrust increased by 1.96% compared to the initial nozzle. The results in this paper are given parameters of the new nozzle having more optimal than the original nozzle. This result can be used to increase the range of 9M22Y rocket in particular and other missiles in general.
FINITE TIME TRAJECTORY TRACKING CONTROL OF A QUADROTOR BASED ON ARTIFICIAL NEURAL NETWORK
Authors:   Le Quy Don Technical University, To Xuan Dinh
Published: September 2022

In this paper, a robust hierarchical method for trajectory tracking control of a quadrotor unmanned aerial vehicle (UAV) subjected to parameter uncertainties and external disturbances is presented. A robust control scheme based on a fast nonsingular terminal sliding mode strategy is designed to achieve fast response and excellent tracking accuracy. Moreover, a radial basis function artificial neural network with online adaptive schemes to estimate unknown aerodynamic parameters and external disturbances is developed to improve the control performance and reduce the chattering phenomenon. Numerical simulation and experimental results are used to validate the effectiveness of the proposed control method.
SYNTHESIS OF UREA-HYDROGEN PEROXIDE AND ITS APPLICATION FOR PREPARING THIOSULFINATE
Authors:   Academy of Military Science and Technology, Pham Xuan Thao
Published: September 2022

The Urea-Hydrogen Peroxide complex (UHP) was synthesized from urea and hydrogen peroxide, characterized by FT-IR. This UHP complex could be employed as an oxidizing agent for metal-free oxidation reaction of disulfides to thiosulfinate compounds. This protocol was carried out under very mild conditions at 0oC in CH3CO2H solvent, was efficient and compatible with a range of alkyl, aryl or allyl disulfides to afford direct access to thiosulfinate compounds in very good yields up to 92% and high selectivities.
LINEAR GROUP PRECODING FOR MASSIVE MIMO SYSTEMS UNDER EXPONENTIAL SPATIAL CORRELATION
Authors:   Le Quy Don Technical University, Dinh Van Khoi
Published: September 2022

In this paper, a low-complexity linear group precoding algorithm in the exponential correlation channel model is proposed for massive MIMO systems. The proposed precoder consists of two components: The first one minimizes the interferences among neighboring user groups; The second one improves the system performance by utilizing the ELR-SLB technique. Numerical and simulation results show that the proposed precoder has remarkably lower computational complexity than its LC-RBD-LR-ZF counterpart, while its bit error rate (BER) performance is asymptotic to that of the LC-RBD-LR-ZF precoder as the number of groups increases.
Impacts of Online Retail Business on the Built Environment in the Pandemic Context
Authors:   University of Indonesia, Pratama Giovanny Adi
Published: September 2022

The growth of online retail is considerably fast, prompted by the development of information technology and the internet in society. During the pandemic, people are often prohibited by law from commencing activities outside of their homes to prevent virus spreading. This situation made accessing e-commerce for online shopping became a norm. Last year, research presented approximately twenty million visitors increase in Indonesian online retail platforms during the first half of 2020, which was also the earlier phase of the pandemic in Indonesia. The highest-selling products during this period fell in the retail category, including fashion, hobby, and medical drugs and supplies. The two pieces of information indicate that the online retail business was booming because of the pandemic. From architectural perspective, discussions regarding online retail business at its early growth were unfavourable as this business reduces the need for physical commercial buildings or stores. Later, architectural research stated that the business is beneficial as it birthed a new industrial facility known as a fulfilment centre. The booming business and the current favourable impression of online retail became the catalyst of this paper; it provided a short architectural review on the business in the pandemic context and what it may bring for architectural research in the future. This research applies a qualitative approach developed through a structured literature review on the online commercial market during the pandemic, online retail business over time, and related real estate development. The result is a diagram of how the pandemic, technology and the internet, and architecture are correlated and several topic recommendations for future studies.
THE APPROPRIATION OF SIDEWALKS FOR E-SCOOTER; FROM THE URBAN BUILT ENVIRONMENT PERSPECTIVE
Authors:   KTH Royal Institute of Technology, Rachmanto Adinda Smaradhana
Published: September 2022

One of the most popular types of micromobility that has rapidly grown in Europe for some recent years is an electric scooter (e-scooter). An emerging phenomenon occurred in many places, including Stockholm. Regardless of some positive claims about e-scooters in urban areas, e-scooters also contribute to new urban problems. Some of the problems occurred in the sidewalk environment, and those issues are widely discussed among pedestrians. Therefore, this study will investigate how the presence of e-scooters affected the pedestrian around Stockholm inner-city based on the experience of various groups of people that use sidewalk environments, including pedestrian and e-scooter users. The finding showed that various perspectives occurred while experiencing e-scooters in the sidewalk environment. Some of the experiences also affected their decisions to walk on the sidewalks. This study expected to add some understanding of how humans perspective on perceiving new materials in their built environment could add value in the planning and design process for the sidewalk environment in the future.
Forecasted Climate Analysis from 2000 to 2100 Using RCP 4.5 and RCP 8.5 Model Scenario as A Hazard Early-Warning System in Prague City, Czech Republic
Authors:   University of Diponegoro, Khoirunisa Risty
Published: September 2022

In the last decades, the increasing number of populations in urban areas is dramatically increased. According to the to the 2018 Revision of World Urbanization Prospects more people live in urban areas, around 55 percent of the world’s population in 2018 and are projected into two thirds of global population in 2050. As the world continues to growth, the lands need to be converted thus deforestation happen. If this continues, the greenhouse gas emission will increase and the climate change will become a threat in the future. Therefore, it become essential to understand how the climate will change in the future through model scenario. The study will asses from three aspects of climate, namely, precipitation, near surface air temperature and maximum wind speed in Prague City, the city that was heavily populated and one of popular destinations for tourism. The objectives were to analyse the future climate based on these three aspects and predict what future hazard which might come n the upcoming years. The outcome can be a basis for early-warning system in urban areas. The methods were employed by using Recipient Concentration Pathways (RCP) scenario of 4.5 as stabilization scenario and 8.5 as pessimistic scenario in Regional Model RCA4. The study found that in several years until 2060, Prague will face more urban flooding based on the model scenario RCP 8.5.