bluuebunny/crossref_metadata_2025_split huggingface dataset:
Die Urinuntersuchung bei Hund und Katze, Teil 1: Physikalische und
chemische Urinuntersuchung
Authors: Seigner Sandra , Weber Karin , Dorsch Roswitha 
Published: August 2023

ZusammenfassungDie Urinuntersuchung bei Hunden und Katzen ist ein wichtiger Baustein bei der
Diagnostik von Erkrankungen des Harntrakts und systemischen Erkrankungen. Eine
Routine-Urinuntersuchung besteht aus einer physikalischen und chemischen
Urinuntersuchung sowie der Urinsedimentanalyse. Es stehen mehrere
Urinsammelmethoden (Auffangen, Katheterisierung, Zystozentese) zur
Verfügung, welche mit verschiedenen Vor- und Nachteilen verbunden sind.
Je nach Untersuchungsschwerpunkt muss für jeden Patienten individuell
die geeignete Methode gewählt werden. Die Urinuntersuchung sollte im
besten Fall innerhalb von 30 Minuten nach der Gewinnung durchgeführt
werden, da Urin anfällig für zeit- und lagerungsbedingte
Veränderungen ist. Die physikalische Urinuntersuchung gliedert sich in
die Bestimmung von Urinfarbe und -trübung sowie die Messung des
urinspezifischen Gewichts, welches Auskunft über die Konzentration des
Urins gibt. Letzteres wird mittels Refraktometrie bestimmt und ist stets im
Zusammenhang mit dem Hydratationsstatus des Patienten zu beurteilen. Bei der
chemischen Urinuntersuchung werden neben dem pH-Wert des Urins die
Präsenz von Blut/Hämoglobin/Myoglobin, Protein,
Glukose, Bilirubin, Urobilinogen, Nitrit und Ketonen bestimmt. Hierfür
werden meist handelsübliche Urinteststreifen verwendet, die stets
gemäß der Herstellerempfehlungen gelagert und verwendet werden
sollten und bei deren Auswertung veterinärmedizinische Besonderheiten
beachtet werden sollten. Die physikalische und chemische Urinuntersuchung ist
einfach und schnell durchführbar und liefert wichtige Informationen, die
für die Diagnose oder den Ausschluss von vielen Erkrankungen
unverzichtbar sind.
Gallbladder torsion in an 11-month-old Labrador
Retriever
Authors: Theurer Jannina , Himmelsbach Peter , Sinzinger Wolfgang , Hartmann Antje 
Published: August 2023

AbstractAn intact male Labrador Retriever was presented with signs of an acute abdomen
and generalized weakness. Abdominal ultrasonography revealed a distended,
horizontally orientated and caudally displaced gallbladder with a thickened
wall. Computed tomography (CT) showed an abrupt tapering of the cystic duct in
addition to the displacement of the gallbladder.On laparotomy a complete gallbladder torsion was diagnosed. After cholecystectomy
the dog made a full recovery. Gallbladder torsion should be considered as a
rare, potential differential diagnosis in dogs with an acute abdomen.
Novel approach for the treatment of canine elbow hygroma with
extracorporeal shockwaves
Authors: Verhoeven Anika , Huels Nikolaus , Harms Oliver 
Published: August 2023

AbstractA hygroma is a fluid filled cavity, which appears due to repetitive traumata over
bony prominences. For canine elbow hygroma there is no satisfactory treatment
option available. Small hygromas should not be treated at all. Larger hygromas
that restrict the dog in daily life, are infected, painful, or ulcerated should
be treated surgically with drainage or total excision. Surgical treatment of
hygromas results in long rehabilitation times and is associated with a high
complication rate. Extracorporeal shockwave therapy (ESWT) is widely used in
human and veterinary rehabilitation medicine since several years. Even the
mechanisms of action are not fully understood it has a wide range of
indications. ESWT provides anti-inflammatory effects, promotes microcirculation,
and is used for pain relief. In this case series of 4 consecutive cases in 3
dogs we treated hygromas with extracorporeal shockwaves each for 3 to 6 times
usually on a weekly basis. All hygromas regressed completely and no
complications were noted. Overall ESWT seems to provide a safe, easy-to-use, as
well as cost-effective alternative treatment option for canine elbow
hygroma.
Change in Subfoveal Choroidal Thickness following Cataract Surgery Imaged with Enhanced Depth Imaging Optical Coherence Tomography
Authors: Mackenbrock Lars H. B. , Weindler Jan N. , Labuz Grzegorz , Baur Isabella D. , Auffarth Gerd U. , Khoramnia Ramin 
Published: August 2023

Abstract
Background Due to its invasive nature, cataract surgery can lead to inflammatory processes in the posterior segment, which can result in prolonged recovery times, reduced functional
outcomes, and late-onset complications. The aim of the current study was to identify wherever phacoemulsification parameters play a role in choroidal thickness change following cataract
surgery.
Methods This prospective single-center study enrolled 31 patients (31 eyes) scheduled to undergo routine cataract surgery. Patients with previous ocular surgeries, pathologies or
general disorders affecting vision were excluded. Patients were examined preoperatively, as well as 1, 4, and 12 weeks after surgery. Corrected distance visual acuity (CDVA), intraocular
pressure (IOP) as well as cumulative dissipated energy (CDE), ultrasound time (UT), and fluids used during surgery were recorded. Subfoveal choroidal thickness was measured manually by two
masked independent experts using enhanced depth imaging (EDI) optical coherence tomography (OCT). Furthermore, cataract density was automatically calculated using a custom MATLAB script and
an anterior segment OCT.
Results Subfoveal choroidal thickness increased significantly (p < 0.001, Studentʼs paired sample t-test) and continuously during the 12-week-long follow-up period. Both the
nuclear lens density and the improvement in CDVA correlated significantly with this increase (r = 0.413, p = 0.021 and r = 0.421, p = 0.018, respectively). Neither the CDE (r = 0.334,
p = 0.071), the UT (r = 0.102, p = 0.629), the amount of fluid used (r = 0.237, p = 0.27) nor the decrease in IOP (r = − 0.197, p = 0.288) showed any significant correlation with the
choroidal swelling.
Conclusion Cataract surgery leads to an increase in subfoveal choroidal thickness. While no statistically significant correlation to the phacoemulsification parameters could be
established, this might be because of a selection bias due to the technological constraints of the OCT. Nevertheless, the choroid might play a central role in early- and late-onset
complications.
Higher Subjective Burden in Psychiatric Compared to Somatic
Healthcare Workers in Germany During the first wave of the COVID-19
Pandemic
Authors: Halms Theresa , Thoma Andreas , Kramer Victoria , Kunz Miriam , Falkai Peter , Schneider-Axmann Thomas , Hierundar Anke , Wagner Elias , Hasan Alkomiet , Papazova Irina 
Published: August 2023

AbstractThe COVID-19 pandemic has posed unprecedented challenges for health care workers
(HCWs) worldwide. While the adverse effects of the pandemic on the well-being of
HCWs in general have now been established, little is known about the impact on
HCWs of psychiatric hospitals (PHCWs). PHCWs are of special interest, given that
they faced both an increase in infection rates among psychiatric patients as
well as in mental strain of the general public due to consequences of the
pandemic. The aim of the present study was to investigate how the pandemic
affected PHCWs as well as possible differences between PHCWs and other health
care workers (OHCWs) in Germany during the first wave of the pandemic. We
conducted a country-wide anonymous online survey early during the first pandemic
wave between April 15th and May 1st, 2020, to assess different aspects of
subjective burden and perceived stress using 5-point Likert-scale questions. We
analysed data of 1530 PHCWs and 2114 OHCWs and showed that PHCWs reported higher
subjective burden and stress compared to OHCWs (p<0.001). Overall,
nurses from both groups of HCWs showed higher ratings in subjective burden and
stress than physicians. These higher ratings for subjective burden were even
more pronounced for nurses working in psychiatric hospitals. Future research is
needed to investigate the causes for PHCWs’ increased stress and
subjective burden, especially when taking into account the long-term effects of
the pandemic, which may lead to further challenges and an ever-increasing
workload, especially for PHCWs.
Cannabislegalisierung in Deutschland – Implikationen aufgrund
der Erfahrungen aus Uruguay, Kanada und den USA: ein narratives
Review
Authors: Neu Peter 
Published: August 2023

ZusammenfassungDie Regierungskoalition (SPD, Grüne und FDP) haben sich im
Koalitionsvertrag auf eine Legalisierung von Cannabis zu Genusszwecken
für Erwachsene verständigt. Dieses Ziel soll 2023 umgesetzt
werden. Die Diskussion um eine Cannabislegalisierung wurde und wird von
verschiedenen Gruppierung aus Gesellschaft und Wissenschaft höchst
kontrovers diskutiert. Dieser Artikel soll übersichtsartig die
Regularien und Erfahrungen dreier Länder (Uruguay, Kanada und die USA)
mit bereits erfolgter Legalisierung vorstellen und mögliche
Implikationen für Deutschland diskutieren.
The Management of Posttraumatic Nasal Deformities
Authors: Kao W. Katherine , Ho Tang 
Published: August 2023

AbstractNasal bone fractures are the most common fractures of the facial skeleton and are often accompanied by bony, cartilaginous, and soft tissue injuries. These injuries are often complex, and when untreated or inadequately treated, can lead to posttraumatic nasal deformity. The most common deformities are the crooked nose and the saddle nose. Both deformities may result in significant cosmetic and functional concerns. The treatment of these deformities can be complex, requiring careful evaluation of the nose and thoughtful planning to correct the cosmetic deformity and restore functional integrity. The rhinoplasty surgeon will benefit from having a large repertoire of techniques to achieve these repairs. In this article, we discuss the options and concepts for the management of nasal bone fractures as well as complicated posttraumatic nasal deformity. Level of evidence is not available.
Hypoxia Due to a Large Right to Left Interatrial Shunt with Normal Right-Sided Filling Pressures in the Setting of a Separation between the Septum Primum and Secundum: A Case Report
Authors: Shammas Nicolas W. , Keyes Kathleen , Witcik William , Robken Jon , Coyne Edmund , Wong Humphrey 
Published: August 2023

AbstractHypoxia secondary to right to left interatrial shunting in the setting of normal right-sided filling pressure is an uncommon clinical presentation. We present a case of persistent hypoxia irrespective of body position in a patient with a wide separation between the septum primum and secundum, creating a tunnel channeling flow from the right to the left atrium. Hypoxia resolved instantly following closure of the defect with an Amplatzer occluder under intracardiac echocardiography guidance. Although platypnea-orthodeoxia leads to hypoxia in the setting of normal right-sided filling pressures, the finding of a coexisting wide gap between the septum primum and secundum is likely to have worsened the hypoxia making it severe irrespective of body position. Closure of the interatrial septal defect led to immediate and sustained resolution of the hypoxia.
Role of Lateral Pelvic Node Dissection in Rectal Cancer Surgery
Authors: Ozgur Ilker , Gorgun Emre 
Published: August 2023

AbstractThe role of lateral pelvic lymph node dissection in the treatment of patients with locally advanced rectal cancer is a matter of controversy. Surgical practices in Korea and Japan have accepted this approach and are widely utilized; however, it is not routinely incorporated in the practice of countries in the Western hemisphere. This review will examine the role of lateral pelvic lymph node dissection.
Blood Gas Transport: Carriage of Oxygen and Carbon Dioxide in Blood
Authors: Wagner Peter D. 
Published: August 2023

AbstractThe ways in which oxygen (O2) and carbon dioxide (CO2) are carried in the blood are well known and well understood, with a plethora of textbooks, both general and lung specific, all presenting the topic in a very similar manner. This first of two companion chapters similarly summarizes this information. First, carriage of gases by physical solution is described, followed by discussion of O2, carbon monoxide, and CO2 transport in that order. However, what available texts have not emphasized is why knowing how gases are carried in blood matters, and the second, companion, chapter specifically addresses that critical aspect of gas exchange physiology. In fact, each of the chapters in this volume describes physiological behavior that depends more or less directly on the dissociation curves of O2 and CO2.
Blood Gas Transport: Implications for O2 and CO2 Exchange in Lungs and Tissues
Authors: Wagner Peter D. 
Published: August 2023

AbstractThe well-known ways in which O2 and CO2 (and other gases) are carried in the blood were presented in the preceding chapter. However, what the many available texts about O2 and CO2 transport do not emphasize is why knowing how gases are carried in blood matters, and this second, companion, article specifically addresses that critical aspect of gas exchange physiology. During gas exchange, both at the lungs and in the peripheral tissues, it is the shapes and the slopes of the O2 and CO2 binding curves that explain almost all of the behaviors of each gas and the quantitative differences observed between them. This conclusion is derived from first principle considerations of the gas exchange processes. Dissociation curve shape and slope differences explain most of the differences between O2 and CO2 in both diffusive exchange in the lungs and tissues and convective exchange/transport in, and between, the lungs and tissues. In fact, each of the chapters in this volume describes physiological behavior that depends more or less directly on the dissociation curves of O2 and CO2.
Ischemic stroke risk factors not included in the CHADS-VASC score in patients with non-valvular atrial fibrillation
Authors: Le Goff Laurine , Demuth Stanislas , Fickl Andreas , Muresan Lucian 
Published: August 2023

Abstract
Background In patients with atrial fibrillation, the CHA2DS2-VASC score guides stroke prevention using anticoagulants, but it is an imperfect score. Other potential risk factors such as renal failure, the type of atrial fibrillation, active smoking, cancer, sleep apnea or systemic inflammation have less well been investigated.
Objective To assess the impact of these factors on ischemic stroke risk in patients with non-valvular atrial fibrillation.
Methods On a population of 248 patients (124 patients with acute ischemic stroke and 124 controls), we performed a logistic regression to assess the impact of multiple non-classic risk factors for the prediction of acute ischemic stroke. Their impact on mortality was assessed by performing a survival analysis.
Results A high CHA2DS2-VASc score (OR 1.75; 95% CI 1.13–2.70; p = 0.032), treatment with anticoagulants (OR 0.19; 95% CI 0.07–0.51; p < 0.001) and permanent atrial fibrillation (OR 6.31; 95% CI 2.46–16.19; p < 0.001) were independently associated with acute ischemic stroke. Renal failure and chronic obstructive pulmonary disease predicted a higher mortality. After adjusting for age, sex, the CHA2DS2-VASc score and the use of anticoagulants, the only risk factor predictive for acute ischemic stroke was the permanent type of AF (OR: 8.0 [95% CI 2.5–25.5], p < 0.001).
Conclusions The CHA2DS2-VASc score, the absence of anticoagulants and the permanent type of atrial fibrillation were the main predictive factors for the occurrence of acute ischemic stroke. Larger studies are necessary for conclusive results about other factors.
Clinical Trials in Facial Plastic and Reconstructive Surgery
Authors: Okifo Oghenefejiro , Brown Taylor , Boyd Charles 
Published: August 2023

AbstractMany facial plastic and reconstructive surgery providers are interested in incorporating clinical trials into their own practice. Clinical trials in facial plastics have made key contributions to current practices. Clinical trials range from investigating the safety and efficacy of Juvederm filler to reducing pain associated with injecting Juvederm. This article summarizes landmark clinical trials in facial plastic and reconstructive surgery and provides a framework for providers to get involved in clinical trials.
Neonatal Intestinal Segmental Volvulus: What Are the Differences with Midgut Volvulus?
Authors: Casalino Maria , Miscia Maria Enrica , Lauriti Giuseppe , Gauda Estelle , Zani Augusto , Zani-Ruttenstock Elke 
Published: August 2023

Abstract
Objective Intestinal volvulus in the neonate is a surgical emergency caused by either midgut volvulus (MV) with intestinal malrotation or less commonly, by segmental volvulus (SV) without intestinal malrotation. The aim of our study was to investigate if MV and SV can be differentiated by clinical course, intraoperative findings, and postoperative outcomes.
Methods Using a defined search strategy, two investigators independently identified all studies comparing MV and SV in neonates. PRISMA guidelines were followed, and a meta-analysis was performed using RevMan 5.3.
Results Of 1,026 abstracts screened, 104 full-text articles were analyzed, and 3 comparative studies were selected (112 patients). There were no differences in gestational age (37 vs. 36 weeks), birth weight (2,989 vs. 2,712 g), and age at presentation (6.9 vs. 3.8 days). SV was more commonly associated with abnormal findings on fetal ultrasound (US; 65 vs. 11.6%; p < 0.00001). Preoperatively, SV was more commonly associated with abdominal distension (32 vs. 77%; p < 0.05), whereas MV with a whirlpool sign on ultrasound (57 vs. 3%; p < 0.01). Bilious vomiting had similar incidence in both (88 ± 4% vs. 50 ± 5%). Intraoperatively, SV had a higher incidence of intestinal atresia (2 vs. 19%; p < 0.05) and need for bowel resection (13 vs. 91%; p < 0.00001). There were no differences in postoperative complications (13% MV vs. 14% SV), short bowel syndrome (15% MV vs. 0% SV; data available only from one study), and mortality (12% MV vs. 2% SV).
Conclusion Our study highlights the paucity of studies on SV in neonates. Nonetheless, our meta-analysis clearly indicates that SV is an entity on its own with distinct clinical features and intraoperative findings that are different from MV. SV should be considered as one of the differential diagnoses in all term and preterm babies with bilious vomiting after MV was ruled out—especially if abnormal fetal US and abdominal distension is present.
Valuation method of intellectual property pledge financing based on income interval analysis and risk adjustment coefficient
Authors: Su Rengang , Li Ming , Fang YinHai , Yang Chonghuai 
Published: August 2023

AbstractThis study has developed a new method to valuate intellectual property for pledge financing. First, based on interval theory and the relevant calculation rules, the income interval model is and then used to calculate the interval values of intellectual property. Second, based on the change structure of risk indicators, the AHP and set-valued statistics are utilized to calculate the risk adjustment coefficient. Third, the point value of intellectual property is calculated with its values at an interval scale and risk adjustment coefficient. The values of intellectual property at an interval scale provide the two parties negotiating pledge financing with a reference range of loan amounts. The risk adjustment coefficient becomes a crucial indicator for measuring value evaluation risk. The point value of intellectual property specifies how much the bank loan amount can deviate from the values of intellectual property at an interval scale. The method creates a multi-indicator system to valuate intellectual property for pledge financing, which lowers the risk of intellectual property pledge financing to a significant extent and facilitates its operation. Moreover, the method has been proven to be efficient in practice.
Direct sampling method to inverse wave-number-dependent source problems: determination of the support of a stationary source
Authors: Guo Hongxia , Hu Guanghui , Zhao Mengjie 
Published: August 2023

Abstract
This paper is concerned with a direct sampling method for imaging the support of a frequency-dependent source term embedded in a homogeneous and isotropic medium. The source term is given by the Fourier transform of a time-dependent source whose radiating period in the time domain is known. The time-dependent source is supposed to be stationary in the sense that its compact support does not vary along the time variable. Via a multi-frequency direct sampling method, we show that the smallest strip containing the source support and perpendicular to the observation direction can be recovered from far-field patterns at a fixed observation angle. With multiple but discrete observation directions, the shape of the so-called Θ-convex hull of the source support can be recovered. We even extend the proposed algorithm to the case of near-field data in three dimensions. The frequency-domain analysis performed here can be used to handle inverse time-dependent source problems. Our algorithm has low computational overhead and is robust against noise. Numerical experiments in both two and three dimensions have proved our theoretical findings.
Iterative inversion of the tensor momentum x-ray transform
Authors: Denisiuk Aleksander 
Published: August 2023

Abstract
The momentum x-ray transform maps a symmetric tensor field f of order m in

R

n

to its integrals over lines at + b with the weight tk
,

k
=
0
,
…
,
m

. In this article we propose an iterative approach to the reconstruction problem. Namely, a new concept of partial momentum transforms is introduced. These transforms are intermediaries between the momentum and the component-wise x-ray transforms. Moreover, one can use a differential operator to construct a sequence of partial momentum transforms that starts with the momentum and finishes with the component-wise transform. The latter can be inverted with the standard component-wise backprojection. The proposed method was also applied to obtain an analog of the Plancherel formula as well as the stability estimates in the Sobolev spaces that are valid for any m.
Comparison of vacuum-immersed helicon thrusters terminated by upstream magnetic and physical walls
Authors: Takahashi Kazunori 
Published: August 2023

Abstract
Thrusts imparted by helicon thrusters terminated by a cusp magnetic field and a physical wall are compared in a laboratory experiment, where the configurations have source lengths of 26 cm and 17.5 cm, respectively. The thruster is typically operated at about 5 kW of radiofrequency power and argon gas is used as a propellant. The influence of the cusp magnetic field inside the source on the thrust is clearly observed for the long source length case, while it does not significantly affect the thrust for the short source length case. The results imply that the thrust enhancement by the cusp magnetic field is due to the geometrical isolation of the plasma from the physical wall, which reduces energy loss to the wall. Furthermore, it is observed that the high-potential plasma for the short source length case is indeed unstable due to microarcings, which occur with an interval time of about sub-second. It is shown that the occurrence of microarcings induces a temporal change in the plasma potential, while no drastic change in the electron temperature is observed.