bluuebunny/crossref_metadata_2025_split huggingface dataset:
Manual Instruments as an Alternative to Drilling for Bony Exposure in Skull Base Surgery: Concept and Technique
Authors: Jha Deepak K. , Agrawal Mohit , Gosal Jaskaran Singh , Janu Vikas , Agrawal Dhruv K. , Sharma Raghvendra K. , Garg Mayank , Ghatak Surajit , Elhence Poonam , Bhatia Pradeep K. 
Published: February 2023

Abstract
Background Drilling in neurosurgery is an integral part of surgical exposure, especially in skull base approaches and craniovertebral junction (CVJ) surgeries. Most of such drillings are done in close proximity to the neurovascular structures in skull base surgeries and cervical-medullary junction or facet/pedicle in CVJ surgeries. Reluctance to drilling among young neurosurgeons is due to less hands-on experience during training and also, in the early part of the career, due to fear of injury to neurovascular structures.
Methods Five commonest bone removals for skull base region and CVJ surgeries that can be safely done using manual instruments were identified based on experiences of senior authors. The authors highlight key technical nuances to widen surgical corridors using manual instruments safely for skull base surgical approaches.
Results Basic neuroanatomical concepts and basic physics help in using manual instruments safely for bone removals in various skull base surgical approaches.
Conclusions Manual instruments may be used for bone removals in selected skull base surgical approaches, which help young neurosurgeons to perform these surgeries in limited-resource settings.
Misdiagnosis of Total Parental Nutrition-Related Riboflavin Deficiency: Three Case Reports of Diagnostic Error
Authors: Shafer Grant J. , Abdenur Jose E. , Dhar Vijay , Mikhael Michel 
Published: February 2023

AbstractTotal parental nutrition (TPN) is a critical component of neonatal intensive care. Supply shortages leading to deficiencies in TPN constituents can have devastating consequences for critically ill patients in the neonatal intensive care unit (NICU), who may be initially misdiagnosed as potential inborn errors of metabolism. Here, we present three cases of patients with prolonged TPN dependence due to intra-abdominal pathology who presented with signs and symptoms concerning for metabolic disorders and who were ultimately determined to be a result of vitamin deficiencies in the TPN after unnecessary testing and interventions had occurred. These diagnostic errors highlight the need for clinicians to maintain a high index of suspicion for nutritional deficiencies when treating patients in the NICU with potential metabolic disorders during times when TPN constituents are not available, as well as advocating to ensure that adequate supplies are maintained for this vulnerable population.
Evaluation of Gabapentin in the Treatment of Postoperative Pain after a Tibial Plateau Levelling Osteotomy in Dogs
Authors: Almeida Daniel , Wendt-Hornickle Erin , Conzemius Michael G. 
Published: February 2023

Abstract
Objective Pain management is an essential component of perioperative patient care. Multimodal pain management strategies have the potential to provide more effective analgesia than a single drug. The objective of this study was to evaluate the use of gabapentin as an adjuvant to carprofen for the management of postoperative pain following tibial plateau levelling osteotomy surgery.
Materials and Methods The study included 20 adult dogs with unilateral cranial cruciate ligament disease, assigned to one of two postoperative treatment groups, receiving either carprofen (4.4 mg/kg orally every 24 hours) or carprofen plus gabapentin 20 mg/kg, orally, every 8 hours beginning the night prior to surgery and continuing for 14 days postoperatively. The patients were blindly assessed postoperatively using the Short Form of the Glasgow Composite Measure Pain Scale (GCMPS-SF) and limb function measured by pressure platform gait analysis. There was no difference in body weight, age, affected hindlimb or sex between groups.
Result No differences were found in (GCMPS-SF) pain assessments; after surgery, a (GCMPS-SF) more than or equal to 6 was documented in four dogs (two dogs in each group) and no dog required rescue analgesia more than once.
Conclusion In this population of dogs, the addition of oral gabapentin at the dose and frequency studied did not improve subjective or objective outcome measures for perioperative pain control following tibial plateau levelling osteotomy surgery.
Frontotemporal Craniotomy for Clipping of Unruptured Aneurysm Using a Diamond-Coated Thread Wire Saw and Reconstruction Using Calcium Phosphate Cement without Metal Fixation
Authors: Koizumi Hiroyuki , Yamamoto Daisuke , Handa Hajime , Saruta Wakiko , Shimizu Satoru , Hide Takuichiro , Kumabe Toshihiro 
Published: February 2023

AbstractMetal fixation systems for cranial bone flaps cut by a drill are convenient devices for cranioplasty, but cause several complications. We use modified craniotomy using a fine diamond-coated threadwire saw (diamond T-saw) to reduce the bone defect, and osteoplasty calcium phosphate cement without metal fixation. We report our outcomes and tips of this method. A total of 78 consecutive patients underwent elective frontotemporal craniotomy for clipping of unruptured intracranial aneurysms between 2015 and 2019. The follow-up periods ranged from 13 to 66 months. The bone fixation state was evaluated by bone computed tomography (CT) and three-dimensional CT (3D-CT). The diamond T-saw could minimize the bone defect. Only one wound infection occurred within 1 week postoperatively, and no late infection. No pain, palpable/cosmetically noticeable displacement of the bone flap, fluid accumulations, or other complications were observed. The condition of bone fixation and the cosmetic efficacy were thoroughly satisfactory for all patients, and bone CT and 3D-CT demonstrated that good bone fusion. No complication typical of metal fixation occurred. Our method is technically easy and safety, and achieved good mid-term bone flap fixation in the mid-term course, so has potential for bone fixation without the use of metal plates.
Fully Guided Synthetic Osteochondral Resurfacing of a Large Stifle OCD Lesion Using a Patient-Specific Implant and Drill Guides
Authors: Moser Jasmine , Haimel Georg , Barker-Benfield Karen , Leschnik Katharina , Böttcher Peter 
Published: February 2023

AbstractSynthetic anatomical reconstruction of extensive, oval osteochondrosis dissecans (OCD) defects remains a challenge due to the ‘one shape fits all’ design of commercial round implants. This is further complicated by the inherent inaccuracy of free-hand implant positioning procedures. A 6-month-old German Shepherd presented with a 15 × 7.8 × 4.3 mm OCD defect at the lateral femoral condyle. A synthetic patient-specific implant (PSI) was designed, using the contralateral unaffected condyle as a template. Reaming of the implant bed was fully guided using a set of three-dimensional-printed drill guides. The implant, consisting of a titanium base and a polycarbonate urethane bearing surface, was press-fit into place. Temporary meniscal release of the cranial meniscal horn was repaired, followed by routine closure and postoperative care. The combination of PSI and matching drill guides resulted in an accurate restoration of the normal joint surface at the former defect area. At 6-week and 18-month follow-ups, mild joint effusion, unexpected soft tissue mineralization and a small joint mouse were present. No other complications were encountered, and the dog was clinically lameness-free. At 6 weeks and 6 months, computerized gait analysis documented increased loading of the affected limb from 36% preoperatively to 42 and 40%, on follow-up, respectively. Body weight distribution between both hindlimbs was nearly equal at the 6-month control with 1% difference in loading. Osteochondral resurfacing using a PSI appears to be a promising treatment option for large stifle OCD lesions in which other treatment modalities may not be eligible.
Complications of Decompressive Craniectomy: A Case-Based Review
Authors: Kumarasamy Sivaraman , Garg Kanwaljeet , Gurjar Hitesh Kumar , Praneeth Kokkula , Meena Rajesh , Doddamani Ramesh , Kumar Amandeep , Mishra Shashwat , Tandon Vivek , Singh Pankaj , Agrawal Deepak 
Published: February 2023

AbstractBackground Decompressive craniectomy (DC) is a frequently performed procedure to treat intracranial hypertension following traumatic brain injury (TBI) and stroke. DC is a salvage procedure that reduces mortality at the expense of severe disability and compromises the quality of life. The procedure is not without serious complications.Methods We describe the complications following DC and its management in a case-based review in this article.Results Complications after DC are classified as early or late complications based on the time of occurrence. Early complication includes hemorrhage, external cerebral herniation, wound complications, CSF leak/fistula, and seizures/epilepsy. Contusion expansion, new contralateral epidural, and subdural hematoma in the immediate postoperative period mandate surgical intervention. It is necessary to repeat non-contrast CT head at 24 hours and 48 hours following DC. Late complication includes subdural hygroma, hydrocephalus, syndrome of the trephined, bone resorption, and falls on the unprotected cranium. An early cranioplasty is an effective strategy to mitigate most of the late complications.Conclusions DC can be associated with a number of complications. One should be aware of the possible complications, and timely intervention is required.
Enhancement of Curie temperature of gallium ferrite beyond room temperature by the formation of Ga0.8Fe1.2O3−Y3Fe5O12 composite
Authors: Hait Swarnali , Mandal Kalyan 
Published: February 2023

Multiferroic materials with good magneto-electric coupling are of great interest due to their enormous applications in the field of spintronic devices. Magnetoelectric (ME) gallium ferrite is an interesting material due to its room temperature (RT) piezoelectricity and near RT ferrimagnetism along with significant ME coupling (10−11 s/m at 4.2 K). The work aims to increase the magnetic transition temperature (TC) of the material above RT so that the material can have strong ME coupling at room temperature and can be implemented for practical applications. Several earlier reports have shown the magnetic transition temperature of Ga2−xFexO3 increases with higher Fe contents. Hence, we chose to study the properties of Ga2−xFexO3 (GFO) only for x = 1.2. Y3Fe5O12 (YIG) is another material that is RT ferromagnet material with very high resistivity (∼1012 Ω cm). In this work, by forming a GFO-YIG composite with only a 10% concentration of YIG, the phase transition temperature is increased beyond room temperature from ∼289 K for GFO to ∼309 K for 0.9 GFO-0.1 YIG. The remnant magnetization is also enhanced from 0.211 emu/g to 2.82 emu/g reporting a magnetization of ∼8.2 emu/g at 30 kOe.
Anisotropy effects on the quantum transport of atomic matter waves
Authors: Yedjour Afifa , Boudjemâa Abdelâali 
Published: February 2023

Abstract
We discuss effects of anisotropic scattering in transport properties of ultracold atoms in three-dimensional optical potentials. Within the realm of the first Born approximation, we calculate the self energy, the scattering mean free time, the scattering mean free path, and the anisotropy factor. The behavior of the diffusion constant as a function of the wavenumber is also examined in diffusive and weak localization regimes. We show that these quantities are affected by quantum corrections due to the interference caused by disorder. The dimensionless conductance is evaluated using the scaling theory of localization. Our results are compared with previous theoretical and the experimental results.
Soliton dynamics in two ferromagnetic chains coupled through interactions between opposite and diagonal spins
Authors: Kamburova R S , Primatarowa M T 
Published: February 2023

Abstract
A system of two anisotropic ferromagnetic chains coupled through the interactions between both opposite and diagonal spins is investigated. For the easy-axis on-site anisotropy the system possess soliton solutions. We studied the influence of the coupling constants on the soliton parameters. We obtained that the coupling between opposite spins does not change the soliton parameters while the coupling between diagonal spins has influence on the form and the velocity of the soliton. Further we considered the propagation of a soliton excitation launched in one of the chains and obtained the condition for its perfect switching.
Design and elaboration of various multilayer beam splitters
Authors: Stoyanova E , Levicharov P , Antonova K , Miloushev I , Tenev T 
Published: February 2023

Abstract
Three types of beam splitters: neutral, dichroic and polarizing are designed and elaborated on the base of multilayer interference coatings. The MacNeille’s cube geometry is applied. The software „TFCalc-3.5“ is used for matching the calculated with the measured spectra thus obtaining the optical constants of the vacuum deposited materials and the layer thickness. The technological parameters of the laboratory samples are established as a protocol for their manufacture.
Surface plasmon-like properties of one-dimensional photonic crystal and its application in surface-enhanced fluorescence
Authors: Todorov Rosen , Atanasova Anna , Katrova Vesela , Hristova-Vasileva Temenuga 
Published: February 2023

Abstract
The present work reports on the plasmon-like properties of one dimensional photonic crystal (1D PhC) as active material for surface-enhanced fluorescence application. 1D PhC was prepared through layer-by-layer deposition of spin coated Poly (methyl methacrylate) and vacuum deposited As2S3. The thicknesses of the alternating layers were tailored with Bragg’s condition for a quarter wave stack. The optical properties of the 1D PhC were characterized by UV-Vis-NIR spectrophotometry. The interaction of surface electromagnetic waves (SEW) supported by the photonic crystals with the localized surface plasmon waves spreading on the surface of very thin metallic films deposited on top of the 1D PhC was investigated. The efficiency of the surface-enhanced fluorescence was studied by using a 0.1 % w/v Cu (II)-phthalocyanine (CuPc) in Pluronic PE 6800 water solution. Two times enhancement of fluorescence signal of CuPc was observed in the case of Au overlayer on the surface of the 1D PhC.
Formulation and characterization of Benzydamine loaded casein/chitosan nanocomplexes
Authors: Marudova M , Milenkova S , Zahariev N , Yovcheva T , Pilicheva B 
Published: February 2023

Abstract
The objectives of the present study were to synthesize casein/chitosan nanocomplexes, which are able to immobilize and release Benzydamine in a controlled manner, and to investigate the influence of casein/chitosan ratio on their morphological, physico-chemical and drug carrier characteristics. The complexes were obtained by electrostatic interaction at pH 6, at which casein in negatively charged and chitosan is protonated. The yield of the complexation was the lowest for chitosan excess particles (18.4%) and increased to 83.5% for casein excess particles. The particle size varied in the range from 400 nm to several microns depending on the casein/chitosan ratio. Atomic force microscopy (AFM) was used to assess the morphological properties of the nanocomplexes. It was found that the Benzydamine loading was minimal (15%) in the stoichiometric complex and maximal (30%) in complexes with casein/chitosan ratio 5:1. The mechanism of Benzydamine release was defined as Fickian diffusion.
Molecular dynamics simulations of the monomer density profiles of knotted ring polymer chains confined in a slit of two parallel walls with one attractive and another repulsive surface.
Authors: Kuterba P , Christiansen H , Danel Z , Janke W 
Published: February 2023

Abstract
We have used Molecular Dynamics simulations to obtain the monomer density profiles for real linear and ring polymer chains of 360 monomers length with different topological structures such as simple knots: 31, 61, 91, 10124, complex knots 313151 and twisted knots with n = 10 and n = 20 in a slit geometry of two parallel walls with one attractive and another repulsive surface. We have used Large-scale Atomic/Molecular Massively Parallel Simulator (LAMMPS) software to perform simulations with the Verlet integration algorithm. The interactions between monomers were simulated as Lennard-Jones 12-6 potential, for bonds we have used Finitely Extensible Nonlinear Elastic (FENE) potential and the interaction with the walls was taken into account via Lennard-Jones 9-3 potential. We observed that topologically complex polymers have lower monomer density profiles near the attractive wall, but at some distance in the direction to the repulsive wall this tendency changes to the opposite. We showed that most complex twisted knots have two maxima in narrow slits. In the wide slits we do not observe such relation for twisted knots at higher temperatures. These results are important for better understanding the nature of the depletion forces which arise in a slit geometry of two parallel walls with one attractive and one repulsive wall.
Trace-moisture measurement using cavity ring-down spectroscopy at NMIJ
Authors: Abe H. 
Published: February 2023

Abstract
Trace-moisture standards traceable to the International System of Units (SI) used for the performance test of trace-moisture analyzers and trace-moisture measurement systems based on cavity ring-down spectroscopy (CRDS) developed at the National Metrology Institute of Japan (NMIJ) are briefly reviewed. The magnetic-suspension-balance/diffusion-tube humidity generator, which was the first generator used for the trace-moisture standard developed at NMIJ, is presented. Three measurement systems based on CRDS, which are wavelength-meter-controlled CRDS, dual-laser CRDS, and miniaturized CRDS, are presented. The performance of the three CRDS systems were evaluated using the SI-traceable trace-moisture standards.
Self- and N2- broadening of CO in the low-pressure regime
Authors: Tan Y. , Hua T.-P. , Tang J.-D. , Wang J. , Liu A.-W. , Sun Y. R. , Cheng C.-F. , Hu S.-M. 
Published: February 2023

Abstract
Sub-Doppler saturated absorption spectroscopy of rovibrational transitions of carbon monoxide broadened by nitrogen was recorded at low pressures (1-24 Pa) near 1.56 µm with comb-locked cavity ring-down saturation spectroscopy. We found a nonlinear pressure dependence of the Lamb-dip width of the CO transition induced by elastic scattering. Analysis of the results allows us to characterize parameters of elastic- and nonelastic- scattering under collisions. The elastic scattering angle for nitrogen-induced collisions (CO-N2) was determined to be larger than 0.6 × 10−3 rad. The line broadening of the Lamb dip in the region of low pressures exceeds the broadening at high pressures by a factor of 4 and 5 for the self- and N2-broadening CO R(9) transition. Moreover, much smaller line shifts for both self- and N2-broaden Lamb dips were observed, which was also attributed to the decrease in the number of scattered molecules in the interaction and the increasing attracting forces.
A quantum study of argon induced line mixing in ammonia doublets
Authors: Thibault Franck , Viel Alexandra , Boulet Christian 
Published: February 2023

Abstract
We present a theoretical study of pressure broadening and coupling coefficients for selected doublets of the ν
4 band of ammomia in argon bath. Generalized spectroscopic kinetic energy dependent cross sections are determined quantum mechanically making use of available NH3-Ar potential energy surfaces. Thermally averaged values at various temperatures are also provided. Results are in overall good agreement with data available in the literature. A further study focusses on the speed dependence of the corresponding line shape parameters. The pressure broadening coefficients are found to have a well marked speed dependence while the intradoublet coupling terms show a small speed dependence at room temperature.
Addressing the effect of oscillating electric fields on Stark profiles by computer simulations
Authors: Hannachi I , Stamm R , Rosato J , Marandet Y 
Published: February 2023

Abstract
Oscillating electric fields are present in many different kinds of plasmas and can modify the radiated line shape. An accurate characterization of their effect is difficult since they act simultaneously with the fluctuating microfield of the electrons and ions. We propose to address these simultaneous effects by a computer simulation of the plasma particles motion coupled to a numerical integration of the Schrödinger equation. We discuss here the role of ion dynamics on the effect of oscillating fields, and the different situations which can be investigated by this approach: fixed or sampled oscillating electric field magnitude, fixed direction or randomly oriented oscillating field.
Spectral line shape for plasma electron density characterization in capillary tubes
Authors: Arjmand S , Anania M P , Biagioni A , Costa G , Di Pirro G , Ferrario M , Del Franco M , Galletti M , Del Giorno M , Lollo V , Pellegrini D , Pompili R , Zigler A 
Published: February 2023

Abstract
We report the experimental activity on the plasma-discharge capillary tubes suitable for plasma-based accelerators (PBAs) carried out at the SPARC LAB (sources for plasma accelerators and compton with laser and beam) test-facility. A high-voltage discharge is produced inside a Hydrogen-filled capillary tube. Through spectroscopic techniques, the density of the plasma thus produced is monitored either spatially or temporally through the line Stark broadening profiles.
Comb-assisted cavity ring-down spectroscopy for ultra-sensitive traceable measurements of water vapour in ultra-high purity gases
Authors: Fasci E , D’Agostino V , Khan M A , Gravina S , Porzio G , Gianfrani L , Castrillo A 
Published: February 2023

Abstract
We report on the development of a comb-assisted cavity ring-down spectrometer for trace water mole fraction determinations in high purity gases. By tuning the laser light in coincidence with a H2O absorption line at 1.3946 µm, we were able to determine sub-ppm relative concentrations of water vapour in N2 with a sub-percent statistical uncertainty. The sensitivity of the spectrometer was carefully assessed, yielding a detection limit of about 2 nmol/mol.
Line-shape parameters and line mixing for the low-intensity high-J oxygen transitions
Authors: Domysławska Jolanta , Wójtewicz Szymon , Bielska Katarzyna , Masłowski Piotr , Cygan Agata , Słowiński Michał , Bilicki Sławomir , Trawiński Ryszard S , Ciuryło Roman , Lisak Daniel 
Published: February 2023

Abstract
We present the results of investigations of the oxygen B-band R-branch transitions with intensities in the range from 1.5×10−26 to 2.5×10−28 cm−1/(molecule/cm2) and the total angular momentum quantum number for the lower state, J”, up to 38. High resolution CRDS laboratory spectra were fitted with the Voigt profile as well as with advanced line-shape functions consistent with the Hartmann–Tran profile, that is the speed-dependent Voigt profile and speed-dependent Nelkin–Ghatak profile using the multispectrum fitting technique. The line positions, line intensities and other line-shape parameters, together with our previous data, were collated to show trends for the whole R branch. Using the determined frequencies of the B-band transitions, the Dunham fit was performed to obtain spectroscopic parameters for both ground and excited states. Newly recorded spectra at the band head, with the signal-to-noise ratio above 20000, were analyzed with line profiles including also the line mixing. First-order line mixing determined directly from the line shape fitting at relatively low pressure (32 Torr) is in good agreement with values calculated by Sung et al. [1].