bluuebunny/crossref_metadata_2025_split huggingface dataset:
Chemical and kinematic structure of extremely high-velocity molecular jets in the Serpens Main star-forming region
Authors: Tychoniec Łukasz , Hull Charles L. H. , Kristensen Lars E. , Tobin John J. , Le Gouellec Valentin J. M. , van Dishoeck Ewine F. 
Published: November 2019

Context. Outflows are one of the first signposts of ongoing star formation. The fastest molecular component of protostellar outflows, extremely high-velocity (EHV) molecular jets, are still puzzling since they are seen only rarely. As they originate deep inside the embedded protostar-disk system, they provide vital information about the outflow-launching process in the earliest stages.
Aims. The first aim is to analyze the interaction between the EHV jet and the slow outflow by comparing their outflow force content. The second aim is to analyze the chemical composition of the different outflow velocity components and to reveal the spatial location of molecules.
Methods. The Atacama Large Millimeter/submillimeter Array 3 mm (Band 3) and 1.3 mm (Band 6) observations of five outflow sources at 0.′′3 – 0.′′6 (130–260 au) resolution in the Serpens Main cloud are presented. Observations of CO, SiO, H2CO, and HCN reveal the kinematic and chemical structure of those flows. The following three velocity components are distinguished: the slow and the fast wing, and the EHV jet.
Results. Out of five sources, three have the EHV component. The comparison of outflow forces reveals that only the EHV jet in the youngest source, Ser-emb 8 (N), has enough momentum to power the slow outflow. The SiO abundance is generally enhanced with velocity, while HCN is present in the slow and the fast wing, but disappears in the EHV jet. For Ser-emb 8 (N), HCN and SiO show a bow-shock shaped structure surrounding one of the EHV peaks, thus suggesting sideways ejection creating secondary shocks upon interaction with the surroundings. Also, the SiO abundance in the EHV gas decreases with distance from this protostar, whereas it increases in the fast wing. H2CO is mostly associated with low-velocity gas, but, surprisingly, it also appears in one of the bullets in the Ser-emb 8 (N) EHV jet. No complex organic molecules are found to be associated with the outflows.
Conclusions. The high detection rate suggests that the presence of the EHV jet may be more common than previously expected. The EHV jet alone does not contain enough outflow force to explain the entirety of the outflowing gas. The origin and temporal evolution of the abundances of SiO, HCN, and H2CO through high-temperature chemistry are discussed. The data are consistent with a low C/O ratio in the EHV gas versus a high C/O ratio in the fast and slow wings.
Reconstructive surgery for thumb osteomyelitis: a new way of remodelling the vascularized medial femoral condyle flap. A case report.
Authors: Rossello Carlo , Antonini Andrea , Zoccolan Andrea , Burastero Giorgio , Rossello Mario Igor 
Published: November 2019

Abstract
Background Authors propose a technical innovation for the remodelling of the medial femoral condyle flap (MFCF) for reconstruction of small to medium bone defects performed after the surgical treatment of a thumb osteomyelitis.
Materials and Methods A 45 year old male had thumb proximal phalanx osteomyelitis after a crush trauma of the dominant right hand and multiple previous unsuccessful surgical attempts in other hospitals. In our centre he underwent to a two stage surgical treatment of the infection through bone and soft tissue reconstruction with a MFCF shaped in a new three dimensional (3D) approach with multiple osteotomies.
Results Bone union was achieved after 30 days with a stable thumb reconstruction and good soft tissue healing. No vascular complication occurred after surgery. There was no sign of infection recurrence.
Conclusions MFCF offers a variety of options for its 3 D shaping which make it a good solution in hand surgery reconstructions after surgical excision of small and medium size bony segments.
Subpelvine Stenose & kreuzende Gefäße – Pro „vascular hitch“
Authors: Zahn Katrin , Younsi Nina Friederike , Stein Raimund 
Published: November 2019

ZusammenfassungDie Möglichkeit, eine durch aberrierende Unterpolgefäße bedingte subpelvine Stenose durch eine gefäßverlagernde Pyeloplastik (‚vascular hitch‘) zu behandeln, wird kontrovers diskutiert. Seit diese Technik bei Patienten mit aberrierenden Unterpolgefäßen minimal invasiv durchgeführt wird, mehren sich Publikationen mit kurz-, mittel- und langzeitiger Nachbeobachtung. Die Erfolgsraten werden hierbei analog zur Anderson-Hynes-Plastik mit > 90 % angegeben. Insgesamt scheint eine assoziierte intrinsische Stenose selten zu sein. Eine histologisch nachweisbare muskuläre Hypertrophie kann auch nur Hinweis auf eine Gegenregulation und zumindest bis zu einem gewissen Grad reversibel sein. Für die sicherere Differenzierung der Patienten, bei denen eine Gefäßverlagerung ausreichend ist, von den Patienten, die besser initial eine Anderson-Hynes-Pyeloplastik erhalten sollten, empfiehlt sich ein intraoperativer Diuresetest (Volumenbolus plus intravenöse Furosemidgabe). Eine assoziierte intrinsische Stenose erscheint bei trichterförmigem und ansonsten unauffällig aussehendem pyeloureteralen Übergang, abnehmender Hydronephrose nach Mobilisierung des Nierenbeckens und der aberrierenden Unterpolgefäße und einer effizienten Peristaltik über den pyeloureteralen Übergang während des intraoperativen Diuresetests unwahrscheinlich. Die Vascular-hitch-Technik ist weniger anspruchsvoll als die laparoskopische Anderson-Hynes-Plastik und geht daher mit kürzeren Operations- und Narkosezeiten einher. Weitere Vorteile sind: kein Risiko der Leckage oder späteren Anastomosenstenose und keine Notwendigkeit intraluminaler Stents. Die vascular hitch Operation stellt somit bei einem selektionierten Patientengut mit rein extrinsischer subpelviner Stenose eine scheinbar auch langfristig wirksame Alternative zur klassischen Anderson-Hynes-Plastik dar.
Wie lässt sich bei immobilen Patienten aktuell am besten ein Spitzfuß vermeiden?
Authors: Bräunig Jochen 
Published: November 2019

ZusammenfassungBei immobilen Patienten, die auf medizinische, pflegerische und physiotherapeutische Unterstützung angewiesen sind, besteht oft Unsicherheit in den verschiedenen Berufsgruppen, wie man der Gefahr der Spitzfuß-Fehlhaltung bei diesem Patientenklientel korrekt entgegenwirken kann. Auch in interprofessionellen Teams auf Intensivstationen ist man sich uneins, wann physiotherapeutische Interventionen und Überwachung von prophylaktischen Maßnahmen beginnen sollten, um Sekundärkomplikationen zu vermeiden und die Rehabilitation zu verbessern. Dieser Beitrag möchte den Umgang mit dem Spitzfuß-Risiko erleichtern, den richtigen Therapieweg zeigen und Mythen beseitigen.
Fit machen für die Televisite
Authors: Dähnert Enrico , Weiß Björn , Landgraf Philipp , Schröder Torsten , Spies Claudia ,   das ERIC-Konsortium
Published: November 2019

ZusammenfassungUm die Mitarbeiter auf die Durchführung von Televisiten vorzubereiten, hat die Charité unter der Beteiligung von Pflegekräften ein spezielles Qualifizierungsprogramm entwickelt. Wir stellen das ERIC-Training vor.
Validierung des FIMA-Fragebogens zur Inanspruchnahme von Versorgungsleistungen anhand von Routinedaten der Krankenversicherung: Welchen Einfluss hat der Erinnerungszeitraum?
Authors: Seidl Hildegard , Hein Lorenz , Scholz Stefan , Bowles David , Greiner Wolfgang , Brettschneider Christian , König Hans-Helmut , Holle Rolf 
Published: November 2019

Zusammenfassung
Ziel Das Ziel der Studie ist die Validierung des Fragebogens zur Inanspruchnahme Medizinischer und nicht-medizinischer Versorgungsleistungen im Alter (FIMA).
Methodik Die Selbstangaben von 1552 Teilnehmern wurden mit den Routinedaten der Krankenversicherung abgeglichen. Als Güteparameter wurden Intraklassenkorrelation (ICC), Sensitivität, Spezifität und Kappa-Koeffizienten nach Cohen bestimmt. Der Einfluss von soziodemografischen und gesundheitlichen Faktoren, des Erinnerungszeitraums (3, 6 oder 12 Monate) sowie der Häufigkeit der Inanspruchnahme wurde anhand logistischer Regressionen untersucht.
Ergebnisse Die durchschnittlich 74 Jahre alten Teilnehmer stuften den FIMA größtenteils (95%) als einfach auszufüllen ein. Die Anzahl der Arztkontakte wurde je nach Erinnerungszeitraum zwischen 9 bis 28% unterschätzt, der ICC war für jeden Zeitraum mittelmäßig (ICC: 0,46, 0,48, 0,55). Die Anzahl physiotherapeutischer Kontakte wurde insgesamt sehr gut erinnert (ICC>0,75). Bei den Rehabilitations- und Krankenhaustagen gab es Unterschiede zwischen den Erinnerungszeiträumen (3/6/12 Monate): Rehabilitation: ICC=0,88/0,51/0,87; Krankenhaustage: ICC=0,69/0,88/0,66. Die Selbstangaben für die Leistungen aus der Pflegeversicherung zeigten durchgehend sehr hohe Kappa-Koeffizienten (>0,90) während die Hilfsmittel über alle Zeiträume eine schlechte Übereinstimmung (Kappa<0,30) und die Medikamenteneinnahme eine gute Übereinstimmung (Kappa>0,40) zeigten. In der ambulanten (Arzt, Physiotherapeut) und der stationären Versorgung (Rehabilitation, Krankenhaus) sank die Chance der Übereinstimmung pro zusätzlichem Kontakt signifikant. Darüber hinaus führte ein besserer Gesundheitszustand zu einer exakteren Erinnerung an Physiotherapeutenkontakte.
Schlussfolgerung Der FIMA weist in weiten Teilen eine gute Reliabilität auf. Er ist sehr gut verständlich und ein valides Instrument, um Kosten der Gesundheitsversorgung in der älteren Bevölkerung zu ermitteln.
Microsurgery and external fixation in orthoplastic reconstruction of tibial injuries
Authors: Toia Francesca , Zabbia Giovanni , Scirpo Roberto , Pirrello Roberto , Nalbone Lorenzo , Cordova Adriana 
Published: November 2019

Abstract
Background “Orthoplastics” is a relatively new approach to lower limb reconstruction, where an integration of both plastic and orthopedic expertise is required, together with the availability of well-equipped facilities. Acute shortening and long-term frames for lengthening are generally considered alternatives to length preservation and soft tissue microsurgical reconstruction, but an integration of external fixation and reconstructive microsurgery is gaining an increasing role with refinements of joint approaches.
Material and methods Data on sixteen patients who underwent microsurgical lower limb reconstruction and external fixation with an orthoplastic approach, following acute or chronic tibial injury, were retrospectively reviewed. All patients presented a post traumatic soft tissue defect associated with a Gustilo III tibial fracture or a tibial septic pseudarthrosis. Data on type and timing of bone and soft tissue reconstruction, outcomes, complications and need for re-operation were extrapolated and compared to an historic group of patients treated with an orthopedic-based approach.
Results In the orthoplastic group, soft tissues were reconstructed with an ALT flap in most cases; a muscle-sparing VL or ALT-VL chimeric flap was necessary in cases with a very extensive defect. In the orthopedic group, soft tissues were left to heal by second intention or patients were lately referred to plastic surgeons. Statistical comparison between the two groups has showed significant differences on the following data: time for soft tissue healing, time to bone union, number of reinterventions, post-operative deep infection rate, time to return to work.
Conclusion The orthoplastic approach to complex leg defects yields shorter treatment time and better functional results compared to the orthopedic-based approach. External fixation and microsurgical reconstruction are not necessarily alternative procedures but can integrate in an orthoplastic path to address at best both soft tissue and bone reconstruction.
Primary and Secondary Hyperparathyroidism in Patients with Primary
Aldosteronism – Findings From the German Conn’s
Registry
Authors: Asbach Evelyn , Bekeran Margareta , König Anna , Lang Katharina , Hanslik Gregor , Treitl Marcus , Ladurner Roland , Bidlingmaier Martin , Beuschlein Felix , Quinkler Marcus , Reincke Martin 
Published: November 2019

Abstract
Context Recent studies support a bidirectional interaction between
aldosterone and parathyroid hormone (PTH), possibly increasing the
individual cardiovascular risk. Primary aldosteronism (PA) and primary
hyperparathyroidism can occur simultaneously.
Objective Our aim was to investigate the prevalence of
hyperparathyroidism in PA.
Patients We performed a case finding of primary hyperparathyroidism
in a retrospective series of 503 patients with PA (cohort 1). We analysed
primary and secondary hyperparathyroidism in 141 prospective PA patients who
underwent PTH, serum calcium and phosphate measurements at time of diagnosis
of PA (cohort 2).
Results The prevalence for primary hyperparathyroidism was
1.2% in cohort 1, and 2.1% in cohort 2. Secondary
hyperparathyroidism was found in 54.6% of the patients. Patients
with secondary hyperparathyroidism had significantly higher aldosterone and
lower potassium levels and took more antihypertensive medications compared
to those with normal PTH levels. In multivariate analysis, aldosterone and
25-hydroxyvitamin D levels were significantly correlated with serum PTH
levels. There was a nonsignificant trend to a higher cardiovascular
morbidity in patients with secondary hyperparathyroidism. Patients with
aldosterone producing adenoma had significantly higher PTH levels compared
to patients with bilateral adrenal hyperplasia. After treatment, there was a
significant decrease of PTH levels in both groups.
Conclusion Patients with PA frequently have primary or secondary
hyperparathyroidism, which is alleviated by correction of PA by surgical or
medical means. Patients affected by secondary hyperparathyroidism seem to
have a more severe phenotype of PA and have a trend towards more
cardiovascular co-morbidities.
Agreement and Reliability of Lateral Patellar Tilt and Displacement following Total Knee Arthroplasty with Patellar Resurfacing
Authors: Kleimeyer John P. , McQuillan Thomas J. , Arsoy Diren , Aggarwal Vinay K. , Amanatullah Derek F. 
Published: November 2019

AbstractPatellar position and alignment may be measured on routine axial radiographs by various techniques; however, the agreement and reliability of such measurements with a resurfaced patella remain unknown. This study evaluated the range and reliability of lateral patellar tilt and lateral patellar displacement following total knee arthroplasty (TKA) with a resurfaced patella among three observers on 45° Merchant view in 139 TKAs. Intraclass correlation coefficient (ICCs) were used to evaluate intraobserver agreement (IOA) and inter-rater reliability (IRR). IRR was high between each of the observers for lateral patellar tilt (ICC = 0.8) and lateral patellar displacement (ICC = 0.87). IOA was also high upon repeat measurement for the same observer for lateral patellar tilt (ICC ≥ 0.90) and lateral patellar displacement (ICC ≥ 0.86). Therefore, lateral patellar tilt and lateral patellar displacement are reproducible measurements of patellar position on a Merchant axial radiograph following a well-functioning TKA with a resurfaced patella.
Liquid chromatography-electrospray ionization-tandem mass spectrometric assay for d-aspartate N-methyltransferase activity in ark shells
Authors: Shibata Kimihiko , Hagiya Saho , Okawara Rena , Abe Katsumasa , Takahashi Shouji , Kera Yoshio 
Published: November 2019

ABSTRACT
A liquid chromatography-electrospray ionization-tandem mass spectrometry (LC-ESI-MS/MS) method for the separation and quantification of the enantiomers of N-methylaspartate and N-methylglutamate, after derivatization with Nα-(5-fluoro-2,4-dinitrophenyl)-l-leucinamide was established. The time required for the LC-ESI-MS/MS analysis was within 20 min and the detection limit was approximately 10 fmol per injection, demonstrating that this method can be used for the rapid determination of d-aspartate N-methyltransferase activity in the ark shell clam Scapharca broughtonii.
Abbreviations: NMDA: N-methyl-d-aspartate; NMLA: N-methyl-l-aspartate; NMDG: N-methyl-d-glutamate; NMLG: N-methyl-l-glutamate; NMA: N-methylaspartate; NMG: N-methylglutamate; HPLC: high-performance liquid chromatography; SAM: S-adenosyl-l-methionine; OPA: o-phthalaldehyde; LC-ESI-MS/MS: liquid chromatography-electrospray ionization-tandem mass spectrometry; FDLA: Nα-(5-fluoro-2,4-dinitrophenyl)-l-leucinamide; FDAA: Nα-(5-fluoro-2,4-dinitrophenyl)-l-alaninamide; ESI: electrospray ionization; LC-ESI-MS: liquid chromatography-electrospray ionization-mass spectrometry; MS/MS: tandem mass spectrometry
Research on risk assessment technology of China’s railway ticket selling and reservation system
Authors: Zhao Yingming , Zhang Dedong , Li Jubao 
Published: November 2019

Abstract
Application of Internet ticketing in railway ticketing is increasingly critical and the corresponding security risk problem is more prominent with development of science and technology. This paper realized analysis of core risk factors of railway ticket selling and reservation system of China and presented a quantifiable risk assessment model with fuzzy mathematics basing on the characteristics of this system with good usability by experimental results.
A Simulation Platform for Vehicle Themal Management System
Authors: Xiaoke Du , Ke Lou 
Published: November 2019

Abstract
New challenges are arising in vehicle thermal managing systems as air-pollution and fuel consumption rules become more rigid. Therefore, automobile manufactures have to face more competitive pressure. The use of software and hardware-in-loop (HIL) simulation is essential to develop and validate new real-time applications of engine, air conditioner and battery thermal management systems. This paper presents a simulation platform developed to work in a joint-simulation approach of thermal system and control system. The joint-simulation platform functions in a closed loop integrating KULI and Matlab/Simulink, which make it possible to validate both the capacity of thermal system and new control policies without a real system controller at the same time. The steady-state performance of the simulator correlates well with the provided manufacturer’s curve. The simulation platform could provide substantial improvements to the thermal management system performance.
Research on Question Answering Technology Based on Bi- LSTM
Authors: Sun Xiaoya , Li Xinmeng 
Published: November 2019

Abstract
Question Answering (QA) is always the key issue in the Natural Language Process (NLP). This paper mainly researches the question answering model based on Bi-directional Long Short Term Memory networks (Bi-LSTM), with the use of the WebQA dataset to train the model. Experiment results show that ACC@1 in Bi-LSTM model is 55.00%, ACC@3 is 73.24%, and ACC@10 reaches to 86.64%. The Bi-LSTM model outperforms Best Match 25 (BM25) algorithm in all of the three metrics, which proves the superiority of Bi-LSTM model.
Design of Phased Array T/R Component Microsystem Based on Heterogeneous Integration Technology
Authors: en-da Liu , Hong-jiang Wu , yong-zhi Zhao 
Published: November 2019

Abstract
An X-band silicon-based 2×2 phased array T/R module was developed based on MEMS technology and three-dimensional heterogeneous integration technology such as through-silicon via (TSV). The module uses a transceiver integrated multifunction chip solution and is packaged in two layers of silicon: upper layer integrated low noise amplifier, power amplifier, switch, power modulation driver, PMOS and other chips; lower layer integrated multi-function chip, serial-to-parallel chip, logic operation chip. Two-layer silicon package are stacked by solder balls. The T/R module sample’s size is 20mm×20mm×3mm. The test results show that at 8-12GHz, the transmit power is higher than 29dBm, the transmit gain is 20dB, the receive gain is 29dB, the noise figure (NF) is 3dB, and the switch isolation is 37dB.
Research and Application of Recurrent Neural Network in Solar Radio Interference Filtering
Authors: Zhang Qiaoman , Li Xin , Du Qingfu , Zhao Yilong , Ji Shixin , Gao Changlin , Du Qingfu 
Published: November 2019

Abstract
The various interfering signals present in the space result in the inability to obtain a clean and clear solar radio dynamic spectrum, which affects the effective observation of solar radio burst events. At the data processing level, we propose a method for predicting and processing radio interference signals in solar radio burst events using recurrent neural network in deep learning. Firstly, the radio signal that satisfies the condition is selected by the amount of solar radio flux of all frequency channels at some moment, and then the position of the initial time of the burst event is located by using the variation curve of the solar radio flux with time under the single frequency channel. After that, the constructed recurrent neural network is used to predict the signal value of the radio in the burst area. Finally, according to the linear additivity of the signal, the value of the clean pure burst event is obtained by subtracting the predicted radio value from the original value of the burst area. The experimental results show that the proposed method can effectively remove the interference in the solar radio dynamic spectrum and preserve the effective information of the burst event to the greatest extent. This provides a new idea and research direction for deep learning in the anti-interference processing of astronomical big data.
The Application of Optimal Frequency Hopping Patterns in Telemetry Communication Systems
Authors: Li Tonghui , Yao Jianguo 
Published: November 2019

Abstract
In telemetry communication, it is crucial to establish correct frame synchronization, a scheme for applying optimal frequency hopping patterns to aerospace telemetry communication systems is proposed, and the architecture of the transceiver system is given. Compared to one-dimensional pseudo-random sequences, optimal frequency hopping patterns have ideal two-dimensional autocorrelation and cross-correlation performance, which can effectively reduce or eliminate the interference caused by delay and Doppler shift and solve the problem of unable to synchronize frames that is caused by low signal-to-noise ratio and strong interference.
Fault Diagnosis Technology of Rolling Bearing in Space Station
Authors: Dequan Yu , Wenbo Wu , Hongyong Fu , Yang Wang , Ke Wang 
Published: November 2019

Abstract
With the development of space station engineering, rolling bearings have been widely used in space station. Whether the bearing is healthy or not is related to the safety of the experimental facilities. Fault diagnosis of rolling bearings includes time domain analysis and frequency domain analysis. By analyzing bearing fault information, time-frequency information entropy is more representative as fault feature. Firstly, the vibration signal of acceleration sensor is decomposed by EEMD method, and the intrinsic mode function is obtained. The time-frequency information is obtained by Fourier transform, and the information entropy of the time-frequency information is calculated. Then, the fault feature is self-adaptive dimensionality reduction. Finally, the fault feature is trained by using support vector machine, and the data is tested. The experimental results show that the method can diagnose bearing fault with high accuracy.