bluuebunny/crossref_metadata_2025_split huggingface dataset:
Investigation on gas induction of liquid–gas ejector in jet loop reactor
Authors: Duan Zhenya , Li Wenchen , Lin Longlong , Qu Rongxian , Li Shaopu , Zhang Junmei 
Published: August 2021

Abstract
Liquid–gas ejector as a key component of jet loop reactor (JLR), plays an important role in the continuous production of gas–liquid mixing reaction. In this paper, a formula for estimating the gas induction of the ejector is presented. The effects of nozzle radius and mixing length on gas induction of liquid–gas ejector for gas–liquid mixing are simulated, and the formula is verified. Focusing on the efficiency and gas induction, the geometrical parameters are analyzed for the same cases, so that the performance of the ejector can be thoroughly understood. The results show that the optimum mixing section length to diameter ratio (LDR) is about 5–7, and the decrease of nozzle outlet radius can increase the gas induction, which provides a reference for the evaluation of gas induction for liquid–gas ejector and has crucial guiding significance for the design of nozzle and mixing section of liquid–gas ejector in industry.
On the fast approximation of point clouds using Chebyshev polynomials
Authors: Weisbrich Sven , Malissiovas Georgios , Neitzel Frank 
Published: August 2021

AbstractSuppose a large and dense point cloud of an object with complex geometry is available that can be approximated by a smooth univariate function. In general, for such point clouds the “best” approximation using the method of least squares is usually hard or sometimes even impossible to compute. In most cases, however, a “near-best” approximation is just as good as the “best”, but usually much easier and faster to calculate. Therefore, a fast approach for the approximation of point clouds using Chebyshev polynomials is described, which is based on an interpolation in the Chebyshev points of the second kind. This allows to calculate the unknown coefficients of the polynomial by means of the Fast Fourier transform (FFT), which can be extremely efficient, especially for high-order polynomials. Thus, the focus of the presented approach is not on sparse point clouds or point clouds which can be approximated by functions with few parameters, but rather on large dense point clouds for whose approximation perhaps even millions of unknown coefficients have to be determined.
Severe postoperative hyperbilirubinemia in congenital heart disease
Authors: Chen Xiaolan , Bai Ming , Sun Shiren , Chen Xiangmei 
Published: August 2021

Abstract

Purpose
The purpose of our present study was to explore the characteristics and outcomes of congenital heart disease (CHD) patients with severe postoperative hyperbilirubinemia.

Methods
All patients who underwent cardiopulmonary bypass surgical treatment for CHD and had severe postoperative hyperbilirubinemia (total bilirubin [TB] ≥85.5 μmol/L) in our center between January 2015 and December 2018 were retrospectively screened. Univariate and multivariate analyses were employed to identify risk factors for the study endpoints, including postoperative acute kidney injury (AKI), in-hospital mortality, and long-term mortality.

Results
After screening, 86 patients were included in our present study. In-hospital mortality was 10.9%. Fifty-one (59.3%) patients experienced AKI, and four (4.7%) patients received continuous renal replacement therapy. Multivariate analysis identified that the peak TB concentration (P = 0.002) and duration of mechanical ventilation (P = 0.008) were independent risk factors for in-hospital mortality, and stage 3 AKI was an independent risk factor for long-term mortality. The optimal cutoff value for peak TB concentration was 125.9 μmol/L. Patients with a postoperative TB level ≥125.9 μmol/L had worse long-term survival.

Conclusion
Hyperbilirubinemia was a common complication after CHD surgery. CHD patients with severe postoperative hyperbilirubinemia ≥125.9 μmol/L and AKI had a higher risk of mortality.
Preparation and characterization of tung oil-rosin-based polyester internal sizing agent
Authors: Xu Yazhou , Dai Songlin , Bi Liangwu , Chen Yuxiang 
Published: August 2021

Abstract
A series of tung oil-rosin-based polyester (TRP) used as internal sizing agents were prepared using rosin, tung oil, maleic anhydride, and glycerol. TRP structure and properties were examined using Fourier transform infrared spectroscopy (FT-IR), differential scanning calorimetry (DSC) and gel permeation chromatography (GPC). The TRP latexes were subsequently used as internal sizing agents, and the sizing properties were evaluated using a scanning electron microscope (SEM), a video-based dynamic contact angle measuring device and a Cobb absorbency tester. The optimal conditions for preparing the TRP sizing agent were as follows: the hydroxy-carboxyl ratio of the material was 0.25; the maleic anhydride dosage was 20 % of rosin; and the tung oil dosage was 40 % of rosin. Under the best conditions, the sized paper Cobb-60 was 15.6

g
/

m

2

\text{g}/{\text{m}^{2}}

, the tensile index was 45.1 N·m/g, the burst index was 3.1 kPa·

m

2

{\text{m}^{2}}

/g, and the tear index was 15.6 mN·

m

2

{\text{m}^{2}}

/g.
Exodus als pädagogisches Narrativ
Authors: Koerrenz Ralf 
Published: August 2021

Zusammenfassung
Vor dem Hintergrund der typologischen Unterscheidung eines historischen und eines systematischen Erkenntnisinteresses, wird die Exodus-Überlieferung als ein pädagogisches Narrativ in den Blick genommen. Darin wird die Exodus-Überlieferung auf eine implizite Pädagogik hin rekonstruiert. In dieser Pädagogik wird das Narrativ kollektiv als Erziehung (z. B. über das Pessach-Fest) und individuell als Bildung (z. B. über das Sh*ma Israel) inszeniert. Die pädagogische Wirkungsmacht der Exodus-Überlieferung wird vor allem im Anschluss an Michael Walzers Untersuchung „Exodus und Revolution“ entfaltet.
WHY HOSPITAL WASTE MANAGEMENT IS IMPORTANT TO THE ENVIRONMENT?: A SYSTEMATIC LITERATURE REVIEW
Authors: Deraman Suriati , Loon Lee Khai , Muhamad Tamyez Puteri Fadzline 
Published: August 2021

Today, the healthcare industry has grown in importance as the number of hospitals has increased in response to the increased number of patients. This signifies that the world will be facing a more critical environment as a result of waste generation by hospitals. However, there are still insufficient studies that systematically review the existing literature on hospital waste management. Thus, this systematic literature review focuses on hospital waste management and its environmental impact. The results from Google Scholar and Science Direct show 80 articles starting from 2015 to 2020. Only 12 articles fulfil the criteria for further analysis. Most studies indicated the presence of hospital waste procedures such as waste segregation, a lack of awareness among clinical staff, poor facilities and government enforcement. The study contributes to the body of knowledge and the industry. This study explains the importance and environmental impact of hospital waste management. A recommendation for future research is provided.
Efficiency Of Self-Dental Esthetic Satisfaction And The Will Status On Choosing Dentistry As A Profession
Authors: YUCESOY Turker , SENGONUL Enes 
Published: August 2021

Introduction: While other influencing factors are well categorized on the choice of dentistry, the effect of the-self appearance and the importance of the will are not studied adequately and categorized as an influencing factor in the literature.
Materials and Methods: The structured questionnaire with 21 questions was asked to 142 dental students in Turkey. Statistical analyses were performed and the results were obtained. The questions were designed by following the factors affecting the decision of the students in choosing careers such as; willingness, economy, esthetics, past experiences with dentists, the influence of family/environment, etc.
Results: Of the individuals who wanted to become a dentist from the beginning of their education, 82.5% replied as “Dentistry has always been closer and warmer” (p = 0.002; p
Dijital diş hekimliği hakkında bilgi kaynağı olarak YouTube’un değerlendirilmesi
Authors: YAĞCI Filiz 
Published: August 2021

Amaç: Bu çalışmanın amacı diş hekimliğinde dijitale doğru bir dönüşüm yaşanılan bu dönemde, dijital diş hekimliği hakkında YouTube™ videolarının içerik kalitesinin ve demografik özelliklerinin değerlendirilmesidir.
Gereç ve Yöntemler: Google Trends internet sitesinde dijital diş hekimliği hakkında en çok arama yapılan terimin ‘dijital diş’ olduğu belirlendi. Bu anahtar kelime kullanılarak YouTube’da arama yapıldı ve en fazla görüntülenen 100 video içerisinden kriterleri karşılayan 54 video çalışmaya dahil edildi. Altı başlıktan oluşan bir kullanım kalitesi puan sistemi kullanılarak videolar içerik yönünden zayıf, orta ve iyi olarak sınıflandırıldı. Ayrıca "global kalite skalası" na göre de videolar değerlendirildi. İstatistiksel değerlendirme için verilere Kruskal-Wallis testi ile ikili karşılaştırmalar için Mann-Whitney U testi uygulandı (p < 0.05).
Bulgular: Videoların çoğunlukla (% 38.88) diş hekimleri tarafından yüklendiği, % 37.03’ünün dental şirketler tarafından yüklendiği ve bunu TV kanalları tarafından yüklenen videoların takip ettiği (% 24.07) görüldü. Diş hekimi kaynaklı videoların istatistiksel olarak anlamlı şekilde daha fazla görüntülenme (p = 0.036) ve beğenilme sayısına (p = 0.015) sahip olduğu görüldü. Kullanım kalitesi bakımından videoların % 18.51’i içerik olarak iyi, % 44.44’ü orta, % 37.03’ü ise zayıf bulundu.
Sonuç: YouTube video platformunda dijital diş hekimliği hakkındaki bilgilerin sınırlı olduğu görüldü. Bu alanda uzman diş hekimlerinin ve akademisyenlerin doğru bilgilerin paylaşılmasında daha fazla rol almasının yararlı olacağı düşünülmektedir.
The The effect of iron on precipitation hardening in the Cu-Ni-Mn alloys
Authors: Sukhova O.V. 
Published: August 2021

The peculiarities in the structure and properties formation of precipitation-hardened Сu–Ni–Mn–Fe alloys within the concentration range of Ni (19.3–21.0 %), Mn (19.5–20.5 %), Fe (0.6–2.7 %), Cu – balance (in wt. %) were investigated in this work. The methods of quantitative metallography, X-ray analysis, scanning electron microscopy, energy-dispersive spectroscopy and differential thermal analysis were applied. Two solid solutions based on a-Cu differing in composition and hardness were found in the structure of the cast Сu–Ni–Mn–Fe alloys. The temperature ranges of solutions’ formation were determined as (1010±10) °С and (890±10) °С, correspondingly. NiMn phase was also formed at (405±15) °С due to precipitation hardening. In the Сu–Ni–Mn–Fe alloys annealed at 500 and 900 °С for 60–750 hours, the volume fraction and size of NiMn precipitates increased with prolonging annealing time and lowering annealing temperature. As iron content was raised up to 2.7 wt. %, the density of NiMn precipitates increased, especially during first 60 hours of annealing at 900 °С. By adding iron, oxidation resistance was improved, but melting temperature and fluidity did not yield any significant change. Hardness of the Сu–Ni–Mn–Fe alloys with higher iron contents increased by 10 НRB on average. However, when test temperature was raised up to 400 °С, tensile strength decreased (by ~1.3 times) and elongation dropped markedly (by ~10 times).
Time-periodic Poiseuille-type solution with minimally regular flow rate
Authors: Kaulakytė Kristina , Kozulinas Nikolajus , Pileckas Konstantin 
Published: August 2021

The nonstationary Navier–Stokes equations are studied in the infinite cylinder Π = {x = (x', xn) ∈ Rn: x' ∈ σ ∈ R n – 1: – ∞ < xn < ∞, n = 2, 3} under the additional condition of the prescribed time-periodic flow-rate (flux) F(t). It is assumed that the flow-rate F belongs to the space L2(0, 2π), only. The time-periodic Poiseuille solution has the form u(x, t) = (0, ... , 0, U(x', t)), p(x,t) = –q(t)xn + p0(t), where (U(x', t), q(t)) is a solution of an inverse problem for the time-periodic heat equation with a specific over-determination condition. The existence and uniqueness of a solution to this problem is proved.
A karboplatin-kemoterápia hatékonysága egy áttétes, kasztrációrezisztens, BRCA2-mutáció-pozitív prosztatarákos betegben
Authors: Nagy Noémi Dalma , Fazekas Tamás , Baghy Kornélia , Papp Gergő , Csizmarik Anita , Szűcs Miklós , Nyirády Péter , Szarvas Tibor 
Published: August 2021

Összefoglaló. A sérült BRCA1/2 gént hordozó
prosztatadaganatok klinikai szempontból elkülönülő, agresszív altípust
képviselnek. Ugyanakkor a BRCA1/2 gén sérülése a
DNS-támadáspontú kemoterápiákkal szemben érzékennyé teszi a daganatot, ami
terápiás szempontból kihasználható. A platinaalapú kemoterápia hatékonysága
prosztatarákban klinikai vizsgálatokkal nincs alátámasztva, ezért annak
alkalmazására igen ritkán kerül sor. Közleményünkben egy előrehaladott stádiumú,
agresszív prosztata adenocarcinomával diagnosztizált beteg esetét mutatjuk be,
akinél a BRCA2-gén patogén mutációját találtuk, és akinél az
előzőleg alkalmazott androgénmegvonásos, valamint docetaxelkezelések
sikertelensége miatt karboplatinkezelést alkalmaztunk – ez a beteg állapotának,
valamint radiológiai és biokémiai paramétereinek látványos javulásához vezetett.
Ez az eset rámutat a DNS-hiba-javító mechanizmusban szerepet játszó gének
terápiás szempontból történő felhasználásának potenciális előnyeire
prosztatarákban. Orv Hetil. 2021; 162(25): 1004–1008.
Summary.
BRCA1/2 deficient prostate cancers represent a clinically
distinct aggressive subtype. However, the presence of BRCA1/2
alterations enhance the sensitivity to platinum-based chemotherapies. The
efficacy of platinum-based chemotherapies in prostate cancer has not been proven
in prospective clinical studies and therefore these treatments are rarely used
in prostate adenocarcinomas. Here we present a case of BRCA2
mutant prostate cancer, which was diagnosed at a metastatic stage and showed no
or only little response to androgen deprivation and docetaxel therapies.
Therefore, we started carboplatin chemotherapy which resulted in an exceptional
response regarding biochemical, radiographic parameters accompanied by
significant improvement of patients’ physical condition. This case underlines
the potential therapeutic benefits of testing for genes involved in the DNA
repair mechanism. Orv Hetil. 2021; 162(25): 1004–1008.
Periorbitalis bőrtünetekkel járó könnyűlánc-amyloidosis
Authors: Haász Csilla , Kuroli Enikő , Anker Pálma , Márton Dalma Fanni , Szigeti Ágnes , Nagy Zsolt , Demeter Judit , Sárdy Miklós , Medvecz Márta 
Published: August 2021

Összefoglaló. A könnyűlánc-amyloidosis ritka, multidiszciplináris
jelentőségű kórkép, melynek hátterében az esetek döntő hányadában egy
amyloidogen fehérje, a csontvelő kóros plazmasejtjeiben termelődő
monoklonálisimmunglobulin-molekula lambda típusú könnyűláncának felszaporodása
áll. A klinikai tünetek az érintett szervek függvényében igen változatosak és
gyakran nem specifikusak, ezért a betegség sok esetben későn kerül felismerésre.
A diagnózis felállításának alapfeltétele a szövettani vizsgálat elvégzése és a
kóros fehérjelánc kimutatása. A betegség jellegzetes alarmírozó bőrtüneteinek
helyes értékelése fontos szereppel bír a korai diagnózisalkotásban. A jelen
közlemény egy myeloma multiplexhez társult könnyűlánc-amyloidosis esetét mutatja
be. A betegnél a pathognomicus, típusos bőrgyógyászati tünetek (periorbitalis,
axillaris és inguinalis lokalizációjú petechiák, purpurák, ecchymosisok,
suffusiók és viaszsárga papulák) mellett szív- és veseérintettség is
igazolódott. Az alkalmazott ciklofoszfamid-, bortezomib- és dexametazonkezelési
séma hatására a csontvelőben komplett morfológiai remisszió következett be, a
beteg a jelenleg legjobb túlélést biztosító autológőssejt-transzplantáció előtt
áll. Orv Hetil. 2021; 162(32): 1303–1308.
Summary. Amyloid light-chain amyloidosis is a rare disease with
diverse signs and symptoms according to the affected organs. The signs are often
aspecific which can lead to delayed diagnosis. Considering the characteristic
cutaneous manifestations of the disease, dermatologists have an important role
in early identification. Additionally, histopathological examination is required
for diagnosis. Here we present a rare case of light-chain amyloidosis in
association with multiple myeloma. The patient presented with characteristic
periocular, axillar and inguinal petechiae, purpurae, ecchymoses, suffusions,
yellowish-brown waxy papules and plaques besides cardiovascular and renal
involvement. In this case, the amyloidogenic proteins are the lambda-chains of
monoclonal immunoglobulins secreted by the clonally expanded plasma cells of the
bone marrow. The applied cyclophosphamide, bortezomib and dexamethason treatment
induced complete morphological remission in the bone marrow and the patient
currently awaits autologous stem cell transplantation which yields the longest
possible survival. Orv Hetil. 2021; 162(32): 1303–1308.
Új célzott terápiás lehetőség az onkológiában: tropomiozin receptor-tirozin-kináz gátlók
Authors: Kiss Edina , Pápai Zsuzsanna 
Published: August 2021

Összefoglaló.A molekuláris diagnosztikai módszerek folyamatos fejlődésének köszönhetően egyre több onkogén genetikai eltérést azonosítanak. A neurotrofikus tropomiozin receptor-tirozin-kináz (NTRK-) génfúziók fontos precíziós onkológiai célpontok, melyek mindháromNTRK-génben előfordulhatnak, onkogén-hajtóerőként viselkednek. A génfúziók különböző molekuláris diagnosztikai módszerekkel azonosíthatók, melyek közül a legpontosabb, legköltségesebb és legidőigényesebb meghatározást az újgenerációs szekvenálási technika jelenti. A tropomiozin receptor-tirozin-kináz (TRK-) fúziós fehérjék szelektív gátlása személyre szabott onkológiai kezelési lehetőséget jelent a tumor típusától, lokalizációjától és a beteg életkorától függetlenül. Az első generációs TRK-gátlók gyors, hatékony és tartós daganatellenes hatást biztosítanak kimutatottNTRK-fúzió-pozitív daganatok esetén, alacsony mellékhatásprofil mellett. Az első generációs TRK-gátlók mellett jelentkező ’on target’ rezisztenciát a második generációs TRK-gátlók oldják fel. Szekvenciális tirozin-kináz-inhibitor-kezeléssel tartós betegségmentes túlélés érhető el. Orv Hetil. 2021; 162(34): 1362–1369.Summary.Due to the continuous development of molecular diagnostic methods, more and more oncogenic genetic abnormalities are being identified. Neurotrophic tropomyosin receptor tyrosine kinase(NTRK)gene fusions are important precision oncology targets that can occur in all threeNTRKgenes and act as oncogenic drivers. Gene fusions can be identified by a variety of molecular diagnostic technologies, of which next-generation sequencing is the most accurate, costly and time-consuming determination. Selective inhibition of tropomyosin receptor tyrosine kinase (TRK) fusion proteins represents a personalized oncology treatment option regardless of tumour type, localization and patient age. First-generation TRK inhibitors provide rapid, efffective and long-lasting antitumor activity inNTRKfusion-positive tumors with a low side-effect profile. On target resistance to first-generation TRK inhibitors is resolved by second-generation TRK inhibitors. Durable disease-free survival can be achieved with sequential tyrosine kinase inhibitor therapies. Orv Hetil. 2021; 162(34): 1362–1369.
A mitralis billentyű sebészete atrioventricularis septumdefektusban
Authors: Hartyánszky István , Bogáts Gábor 
Published: August 2021

Összefoglaló. A veleszületett szívbetegségek egyik gyakori formáját
jelentő atrioventricularis septumdefektus korrekciós műtétjének kritikus pontja
a közös atrioventricularis szájadék elválasztásával a mitralis billentyű
kialakítása. A korrekció sikere számos anatómiai variáns függvénye, ezért nem
lehet minden esetben a tökéletes anatómiai viszonyokat kialakítani. A fennmaradó
billentyűstenosisok, regurgitatiók a későbbi életkorban progressziót mutatva
olyan hemodinamikai kórképeket, keringési elégtelenséget okozhatnak, melyek
további beavatkozásokat igényelhetnek. A mitralis billentyűnek az
atrioventricularis septumdefektushoz társuló betegsége koraszülöttkortól
aggkorig minden életkorban előfordul, más-más műtéti megoldást igényelve. A
szerzők részletezik a különböző életkorokra vonatkozóan a napjainkban lehetséges
és szükséges műtéti megoldásokat, sebészi kihívásokat. A mitralis billentyű
műbillentyűre történő cseréjében a klasszikus sebészi megoldások mellett
napjainkban új beavatkozásokként jelentős számban jelentkeznek a katéteres
intervenciós és hibrid megoldások. A felnőttkort egyre nagyobb számban megélő
betegek fokozott odafigyelést, speciális ellátást igényelnek a kardiológusoktól,
szívsebészektől. Orv Hetil. 2021; 162(35): 1397–1401.
Summary. The critical point of the atrioventricular septal defect
correction is to separate the common atrioventricular orifice, which results in
the reconstruction of the mitral valve. The success of the correction depends on
many anatomical aspects, therefore a perfect anatomical outcome is not always
possible. The remaining valvular stenoses and regurgitations, showing
progression at a later age, may result in hemodynamic disorders and circulatory
insufficiency that may require further interventions. Mitral valve disease
associated with atrioventricular septal defect occurs at all ages from preterm
to adulthood, requiring different surgical solutions. The authors detail the
possible and necessary surgical solutions and surgical challenges at different
ages. In addition to the classic surgical solutions, a significant number of
catheter interventional and hybrid solutions are emerging as new interventions
in the replacement of the mitral valve with an artificial valve. An increasing
number of patients living in adulthood require increased attention and special
care from cardiologists and cardiac surgeons. Orv Hetil. 2021; 162(35):
1397–1401.