bluuebunny/crossref_metadata_2025_split huggingface dataset:
Formation of Modern Ski Complex
Authors: Burenok E. S. , Skoblitskaya Yu. A. 
Published: September 2024

The paper relevance is determined by the growing popularity of active extreme tourism, where ski holidays offer increasing accessibility to ski infrastructure and are supported by the government.Purpose: Identification of design principles and trends in a modern ski complex.Methodology: The analysis of Russian and foreign experience; functional typology of ski complexes; principles of creating modern architecture integrated into the environment; ski resorts in Russia, European countries, Japan and the USA in the 20-21st centuries.Research findings: The historical aspect of the emergence of skiing as a popular tourism is considered herein. Based on the comparative analysis, the principles of designing ski complexes are formulated. The connection between these principles and sustainable architecture is shown. The classification is given to ski complexes. The influence of residence time on functional content is highlighted. The functional planning aspects of design and the influence of architectural and stylistic solutions on them are formulated. The functional planning structure is presented. The dependence of spatial arrangement with the functional planning structure is demonstrated.Practical implications: The results can be used in the design of ski complexes.Originality: The paper studies Russian and foreign experience in design of ski complexes; factors influencing the design in the complex terrain; determines the functional and planning structure and nomenclature of the premises of ski complexes.
Architectural Modernization of Main University Building in Novocherkassk
Authors: Zhukov A. A. , Morgun N. A. , Tumasov A. A. 
Published: September 2024

The development of the material and technical base of universities is one of the priority areas of the state policy in the field of creating personnel and technological sovereignty of the country. The high level of modern engineering support and teaching technologies in higher education requires modernization of university buildings throughout the country, some of which are cultural and architectural monuments.Purpose: To consider the possibility of architectural modernization as a means of developing the university's material base on the example of the main university building in Novocherkassk, which is an architectural monument of federal significance.Research findings: Based on an analysis of current problems of this building, of architectural modernization concept is proposed with a change in its functional and space-planning organization.
Jordan Eliminations in Force Analysis When Changing Beam Structural Design
Authors: Pestcov D. N. , Moiseenko M. O. , Treputneva T. A. 
Published: September 2024

Purpose: The aim of the work is to study changes in forces in cross sections of a statically indeterminate beam when changing the structural design.Methodology: Jordan elimination is used to solve the system of equations. Jordan elimination used in the force analysis is considered on the example of the formation of a statically indeterminate beam by connecting two previously calculated statically indeterminate beams into one.Research findings: The data obtained for two separate statically indeterminate beams and Jordan elimination allow to calculate the forces and displacements for a statically indeterminate beam obtained by connecting two separate beams without the need to solve a new system of resolving equations.
Towards Calculation of Anisotropic Constructive Elements with Elastic-Plastic Properties
Authors: Kartopoltsev V. M. , Alekseev A. A. , Paraev B. A. 
Published: September 2024

Calculation improvement of asphalt concrete possessing parameters of structurally unstable material is based on the problem of increasing the bearing capacity in terms of the expansion of borders of elastic and plastic material deformation.Purpose: Determination of elastic-plastic characteristics of asphalt concrete during non-equiibrium deformation and elastic aftereffect.Practical implications: The estimation of strength of asphalt concrete pavement of carriageway is based on a solution of the contact problem for structurally unstable material.
Road Site Inspection and Measures to Avoid Further Deformation
Authors: Shaburov S. S. , Volkova E. V. 
Published: September 2024

Strength and stability of the roadbed and engineering structures in permafrost conditions and deep seasonal freezing of soils always remain complex scientific, technical and technological problem in construction and reconstruction of roads in northern regions. Particularly important is the spread of subgrade subsidence during construction and further operation and maintenance of roads in these regions. The road destruction is mostly caused by both global warming and geological and hydrogeological conditions.To prevent the deformation development, it is necessary to provide a number of special engineering measures to prevent thawing of permafrost soils or strengthen supra-permafrost layers of foundations. The purpose of the work is to study methods for eliminating deformation of the road bed in permafrost and choosing the main method for eliminating subsidence of the road.The article discusses several ways to solve the problem of eliminating subsidence on of the federal highway. Options for reconstruction of the roadbed are considered. These are different methods of thermal stabilization, i.e., horizontal (sloping) thermal stabilization system with inclined thermal stabilizers, temporary vertical thermal stabilizers for pre-construction freezing of foundation soils, and hybrid thermal stabilization system (horizontal and vertical thermal stabilizer in one product). A method is proposed for stabilizing the road base by installing soil-cement piles. The main advantages of and disadvantages the methods are noted and cost assessment is made. A conclusion is drawn on the effectiveness of different methods to restore the subgrade structure in order to ensure the road base stability. The main method is elimination of subsidence by stabilizing the road base with installation of soil-cement piles.
Conceptual Scenarios of Architectural Adaptation of Novosibirsk Power Plant
Authors: Zhelobod'ko M. I. , Akimova M. I. 
Published: September 2024

This year marks the 100th anniversary of the foundation of the First Large Power Plant in Novosibirsk, a significant industrial building. Today, Novosibirsk is facing the problem of losing its integral cultural and historical environment due to the large number of unused dilapidated historical and architectural monuments. In order to prevent this trend and save the architectural heritage, it is necessary to develop modern strategies for reuse of these buildings.In this study, conceptual scenarios of architectural adaptation of M. I. Kalinin power plant, the object of cultural heritage of regional significance, are put forward through the methods of contextual, retrospective, ideographic analysis. These design solutions are classified by the original image of the building, focused on the transformation of the former industrial building in order to reveal the socio-historical side of the power plant as a symbol of the dynamic rise of the economy and energy industry in Novosibirsk.As a result, among the scenarios developed for the main building of the city's first major power plant, the most appropriate one is chosen in the context of the historical development of Novosibirsk.The conceptual principle of Nuanced combination with the historical context is the most effective among the described scenarios, assuming preservation of the general architectural image of the historical monument with reversible changes in the architectural solutions of the building.
Baroque Architecture in West Siberia
Authors: Gerasimov A. P. 
Published: September 2024

The article shows the main directions of the architecture development in West Siberia in the 17th and early 20th centuries. Research of the last decades devoted to the artistic and decorative interpretation of stone and wooden buildings is summarized. The mutual effect of their ornaments is noted. It is found that the Baroque style, widely used in the architecture of West Europe and Russia of the 17–18th centuries, is not adequately developed in Siberian cities. Siberian Baroque originated at the beginning of the 20th century, affects mainly religious buildings. In construction of stone residential and public buildings, this style is quite rare.The purpose of this article is to analyze the development of this trend in Siberia. The main focus is on Baroque ornamentation. Baroque elements are widely used in wooden architecture of Siberia in the 19th century. Presently, it draws attention from architectural researchers. The article studies Baroque ornaments in terms of Russian traditions, identifies the relationship between the main architectural styles and customs of wooden architecture and ornaments in Siberia.
A taxonomy for cerebellar cavernous malformations: subtypes of cerebellar lesions
Authors: Scherschinski Lea , Eberle Adam T. , Saggi Satvir , Jensen Kate N. , Morshed Ramin A. , Winkler Ethan A. , Catapano Joshua S. , Graffeo Christopher S. , VanBrabant Danielle , Lawrence Peter M. , Lawton Michael T. 
Published: September 2024

OBJECTIVE
An anatomical taxonomy has been established to guide surgical approach selection for resecting brainstem and deep and superficial cerebral cavernous malformations (CMs). The authors propose a novel taxonomy for cerebellar CMs, introduce 6 distinct neuroanatomical subtypes, and assess their clinical outcomes.

METHODS
This bi-institutional, 2-surgeon cohort study included 143 cerebellar CMs that were microsurgically treated over a 25-year period. The proposed taxonomy classifies cerebellar CMs into 6 subtypes on the basis of anatomical location as identified on preoperative MR imaging. Neurological outcomes were assessed using the modified Rankin Scale (mRS), and outcomes were compared among the subtypes, with favorable outcomes defined as mRS scores ≤ 2.

RESULTS
A total of 143 cerebellar CMs were resected in 140 patients. The mean (SD) age was 42.3 (15.2) years; 86 (60%) of the cerebellar CMs were in women, and 57 (40%) were in men. Cerebellar subtypes were suboccipital (17%, 25/143); tentorial (9%, 13/143); petrosal (43%, 62/143); vermian (13%, 18/143); tonsillar (2%, 3/143); and deep nuclear (15%, 22/143). Overall, 78 of 143 (55%) cerebellar CMs presenting to a cerebellar surface were resected without tissue transgression, and the remaining CMs (65/143, 45%) required translobular or transsulcal approaches. Complete resection was achieved in 134 of 143 cases (94%). Favorable outcomes were achieved in 91% (129/141) of cases with follow-up at a mean (SD) follow-up duration of 37.4 (53.8) months. Relative outcomes were unchanged or improved relative to the preoperative baseline in 93% (131/141) of cases with follow-up, without differences between subtypes.

CONCLUSIONS
Most cerebellar CMs are convexity lesions that do not require deep dissection. However, transsulcal and fissural approaches are used for those beneath the cerebellar surface to minimize tissue transgression and preserve associated function. Complete resection without any new deficit is accomplished in most patients. The proposed taxonomy for cerebellar CMs (suboccipital, tentorial, petrosal, vermian, tonsillar, and deep nuclear) guides the selection of craniotomy and approach to enhance patient safety and optimize neurological outcomes.
Novel application of latent class analysis to outcome assessment in traumatic brain injury with multiple injury subtypes or poly-TBI
Authors: Doty Samuel , Petitt Jordan C. , Kashkoush Ahmed , Whiting Benjamin B. , Xiao Tianqi , Francis John J. , Gunzler Douglas , Roach Mary Joan , Kelly Michael L. 
Published: September 2024

OBJECTIVE
The aim of this study was to stratify poly–traumatic brain injury (poly-TBI) patterns into discrete classes and to determine the association of these classes with mortality and withdrawal of life-sustaining treatment (WLST).

METHODS
The authors performed a single-center retrospective review of their institutional trauma registry from 2018 to 2020 to identify patients with traumatic brain injury (TBI). Patients were included if they had moderate to severe TBI, defined as Glasgow Coma Scale score ≤ 12 and Abbreviated Injury Scale (AIS) head score ≥ 3, and the presence of more than one TBI subtype. TBI subtypes were defined as subdural hemorrhage (SDH), subarachnoid hemorrhage (SAH), intracerebral hemorrhage (ICH), and epidural hemorrhage (EDH). Latent class analysis was used to identify patient classes based on TBI subtypes and Rotterdam CT (RCT) scores. The authors then evaluated class membership in relation to categorical outcomes of in-hospital mortality and WLST by using Lanza et al.’s method.

RESULTS
A total of 125 patients met inclusion criteria for poly-TBI. Latent class analysis yielded 3 poly-TBI classes: class 1–mixed; class 2–SDH/SAH; and class 3–EDH/SAH. Class 1–mixed had a higher likelihood of SDH, SAH, and ICH, and a lower likelihood of EDH. Class 2–SDH/SAH had a higher likelihood of only SDH and SAH. Class 3–EDH/SAH had a higher likelihood of EDH and SAH, and a lower likelihood of SDH and ICH. Class 1–mixed was relatively more likely to have an RCT score of 2. Class 2–SDH/SAH was relatively more likely to have an RCT score of 2, 3, and 4. Class 3–EDH/SAH had a higher likelihood of an RCT score of 3, 4, and 5. Class 1–mixed had significantly lower mortality (χ2 = 7.968; p = 0.005) and less WLST (χ2 = 4.618; p = 0.032) than Class 2–SDH/SAH. Class 2–SDH/SAH had the highest probability of death (0.612), followed by class 3–EDH/SAH (0.385) and class 1–mixed (0.277). Similarly, class 2–SDH/SAH had the highest WLST probability (0.498), followed by class 3–EDH/SAH (0.615) and class 1–mixed (0.238).

CONCLUSIONS
Distinct poly-TBI classes were associated with increased in-hospital mortality and WLST. Further research with larger datasets will allow for more comprehensive poly-TBI class definitions and outcomes analysis.
Prediction of contralateral progression in patients with bilateral nonhemorrhagic moyamoya disease following unilateral revascularization surgery
Authors: Pang Chang Hwan , Lee Sang Hyo , Choi Tae Won , Byoun Hyoung Soo , Kim Young-Deok , Ban Seung Pil , Bang Jae Seung , Kwon O-Ki , Oh Chang Wan , Lee Si Un 
Published: September 2024

OBJECTIVE
This study was designed to identify predictive factors associated with substantial contralateral progression in adult patients with bilateral nonhemorrhagic moyamoya disease (MMD) who undergo revascularization surgery (RS) on one hemisphere.

METHODS
The authors retrospectively analyzed 174 contralateral hemispheres of patients with bilateral nonhemorrhagic MMD (non-hMMD) who underwent RS on one side. The primary endpoint was defined as substantial contralateral progression requiring additional RS 6 months after the initial RS. The annual risk and predictive factors for contralateral progression were also analyzed.

RESULTS
Of 174 patients included in the study, 57 (32.8%) experienced contralateral progression over a mean follow-up of 45.3 ± 31.6 months (range 12–196 months). The annual risk for contralateral progression after initial unilateral RS was 7.7% per person-year. Multivariable analysis revealed that age (HR 0.967, 95% CI 0.944–0.992; p = 0.009) and a BMI ≥ 25 (HR 1.946, 95% CI 1.126–3.362; p = 0.017) were significant predictors of contralateral progression. Specifically, the annual risk of contralateral progression was 12.1% in the higher BMI (≥ 25) group and 4.0% in the lower BMI (< 25) group per person-year.

CONCLUSIONS
The study revealed a 7.7% per person-year rate of contralateral progression in patients with bilateral non-hMMD following unilateral RS. Younger age and a BMI ≥ 25 were identified as significant risk factors. For these patients, careful weight management and the use of antilipid agents may be crucial strategies for reducing the risk of contralateral progression after unilateral RS.
Mapping the landscape of pediatric neurosurgery: geography, gender, and trends over time
Authors: Muzyka Logan , Pugazenthi Sangami , Kann Michael R. , Strahle Jennifer M. 
Published: September 2024

OBJECTIVE
Recently there has been an increase in pediatric neurosurgical fellowship graduates. It is important to understand the current pediatric neurosurgical workforce to help with prospective strategic workforce planning. The authors sought to determine 1) the geographic distribution and regional retention after training and 2) academic and leadership metrics by geographic location, era of training, and gender for practicing pediatric neurosurgeons in the United States.

METHODS
Current practicing pediatric neurosurgeons were identified through American Board of Pediatric Neurological Surgery (ABPNS) certification status and the American Association of Neurological Surgeons directory. NIH RePORTER, Web of Science, and departmental and hospital networking websites were used to collect data on demographics, training, leadership, NIH involvement, and academic metrics.

RESULTS
A total of 298 ABPNS-certified pediatric neurosurgeons were identified as currently practicing in the United States. Of these pediatric neurosurgeons, 26.2% were women, 74.5% were academic, and 11.7% have received current or past NIH funding. There were significant differences in the concentration of pediatric neurosurgeons per general population based on region. A total of 117 (39.3%) pediatric neurosurgeons held leadership positions; 4 (1.3%) served as neurosurgery department chairs, 67 (22.5%) served as chief of pediatric neurosurgery (9 of whom were women), 12 (4.0%) served as residency program directors, and 32 (10.7%) served as pediatric fellowship directors. Women were more likely to currently practice in the same region in which they trained for medical school (p = 0.050), have a lower academic rank (p = 0.004), and have a lower h-index (p < 0.001). Pediatric neurosurgeons practicing in the Northeast were more likely to have completed residency (p = 0.022) and medical school (p = 0.002) in the same region as their current practice.

CONCLUSIONS
There are differences in the concentration of pediatric neurosurgeons based on region. In pediatric neurosurgery, women hold fewer leadership positions, have lower academic ranks, and are less academically impactful as measured by the h-index. As the demand for pediatric neurosurgeons evolves, thoughtful monitoring of the distribution and composition of the neurosurgical workforce can help ensure equitable access to care across the country.
Should pelvic incidence influence realignment strategy? A detailed analysis in adult spinal deformity
Authors: Williamson Tyler K. , Onafowokan Oluwatobi O. , Schoenfeld Andrew J. , Owusu-Sarpong Stephane , Lebovic Jordan , Mir Jamshaid , Das Ankita , Lorentz Nathan , Galetta Matthew , Jankowski Pawel P. , Lafage Renaud , Lafage Virginie , Passias Peter G. 
Published: September 2024

OBJECTIVE
The purpose of this study was to assess how various realignment strategies affect mechanical failure and clinical outcomes in pelvic incidence (PI)–stratified cohorts following adult spinal deformity (ASD) surgery.

METHODS
Median and interquartile range statistics were calculated for demographics and surgical details. Further statistical analysis was used to define subsets within PI generating significantly different rates of mechanical failure. These subsets of PI were further analyzed as subcohorts for the outcomes and effects of realignment within each subcohort. Multivariate logistic regression analysis controlling for baseline frailty and lumbar lordosis (LL; L1–S1) analyzed the association of age-adjusted realignment and Global Alignment and Proportion (GAP) strategies with the incidence of mechanical failure and clinical improvement within PI-stratified groups.

RESULTS
A parabolic relationship between PI and mechanical failure was noted, whereas patients with either < 51° (n = 174, 39.1% of cohort) or > 63° (n = 114, 25.6% of cohort) of PI generated higher rates of mechanical failure (18.0% and 20.0%, respectively) and lower rates of good outcome (80.3% and 77.6%, respectively) than those with moderate PI (51°–63°). Patients with lower PI more often met good outcome criteria when undercorrected in age-adjusted PI-LL mismatch and sagittal age-adjusted score, and those not meeting good outcome criteria were more likely to deteriorate in GAP relative LL from first to final follow-up (OR 13.4, 95% CI 1.3–139.2). In those with moderate PI, patients were more likely to meet good outcome when aligned on the GAP lordosis distribution index (LDI; OR 1.7, 95% CI 0.9–3.3). Patients with higher PI meeting good outcome were more likely to be overcorrected in sagittal vertical axis (OR 2.4, 95% CI 1.1–5.2) at first follow-up and less likely to be undercorrected in T1 pelvic angle (OR 0.4, 95% CI 0.2–0.9) by final follow-up. When assessing GAP alignment, patients were more likely to meet good outcome when aligned on GAP LDI (OR 3.5, 95% CI 1.4–8.9).

CONCLUSIONS
There was a parabolic relationship between PI and both mechanical failure and clinical improvement following deformity correction in this study. Understanding the associations between this fixed parameter and poor outcomes can aid the surgeon in strategical planning when seeking to realign ASD.
Comparison of robotic or computer-assisted navigation versus fluoroscopic freehand techniques in the accuracy of posterior cervical screw placement during cervical spine surgery: a meta-analysis
Authors: Zhou Lu-Ping , Zhang Ren-Jie , Shang Yi , Zhao Chen-Hao , Kang Liang , Jia Chong-Yu , Wang Jia-Qi , Zhang Hua-Qing , Shen Cai-Liang 
Published: September 2024

OBJECTIVE
Robot guidance (RG) and computer-assisted navigation (CAN) have been increasingly utilized for posterior cervical screw placement in cervical spine surgery, and cervical screw malposition may contribute to catastrophic complications. However, the superiority of the navigation using RG or CAN compared with conventional freehand (FH) techniques remains controversial, and no meta-analysis comparing the two methods in cervical spine surgery has been performed.

METHODS
The PubMed, Embase, Web of Science, Cochrane, China National Knowledge Infrastructure, and Wanfang databases were searched for eligible literature. Studies reporting the primary outcomes of the accuracy of cervical screw placement using RG or CAN compared with FH techniques were included. Bias was evaluated using the Cochrane risk of bias criteria and the Newcastle-Ottawa Scale. The outcomes were evaluated in terms of odds ratio or standardized mean difference and corresponding 95% confidence interval.

RESULTS
One randomized controlled trial and 18 comparative cohort studies published between 2012 and 2023 consisting of 946 patients and 4163 cervical screws were included in this meta-analysis. The RG and CAN techniques were associated with a substantially higher rate of optimal and clinically acceptable cervical screw accuracy than FH techniques. Furthermore, compared with the FH group, the navigation group showed fewer postoperative adverse events, less blood loss, shorter hospital lengths of stay, and lower postoperative Neck Disability Index scores. However, the navigation and FH groups had equivalent intraoperative times and postoperative visual analog scale and Japanese Orthopaedic Association scores at the final follow-up.

CONCLUSIONS
Both RG and CAN are superior to FH techniques in terms of the accuracy of cervical screw placement. Navigation techniques, including RG and CAN methods, are accurate, safe, and feasible in cervical spine surgery.