bluuebunny/crossref_metadata_2025_split huggingface dataset:
Case report and review of mechanical failure of eruption of the maxillary second primary molar with ectopic eruption of the first permanent molar
Authors: Gao Xuguang , Li Qianyi , Li Yunyang , Li Jianwen , Xiang Qian , Fang Ying , Zou Meiling , Chen Yinyin , Zeng Sujuan 
Published: December 2024

Abstract

Objective: This case report presents a rare case of mechanical failure of eruption (MFE) of the maxillary second primary molar, combined with ectopic eruption of the first permanent molar. The aim is to explore early orthodontic intervention strategies and non-invasive techniques to correct eruption issues, prevent secondary impaction, and improve long-term outcomes.
Case Summary: A 6-year and 11-month-old male patient presented in June 2023 with the complaint of "failure of eruption of the upper left molar." Six months prior, the patient had undergone "windowing for assisted eruption" of the left maxillary second primary molar (65), but the result was unsatisfactory. The patient had no family history of similar dental conditions, and clinical examination revealed ectopic eruption of both the second primary molar and the first permanent molar, as well as signs of impaction in tooth 25.
Symptoms and Clinical Findings
The patient was in the mixed dentition stage. The upper left second primary molar (65) exhibited distal impaction with incomplete eruption, while the first permanent molar (26) showed mesial ectopic eruption. Radiographic examinations revealed that tooth 65 was impacted against the cervical region of 26, and tooth 25 displayed palatal impaction, indicating mechanical obstruction. CBCT confirmed the abnormal positioning and impaction of these teeth.
Diagnosis
Based on clinical and radiographic findings, the diagnosis was:
1. Mechanical failure of eruption of the upper left second primary molar (65)
2. Mesial ectopic eruption of the first permanent molar (26)
3. Crowded dental arch
4. Misalignment
Treatment Plan
The following treatment plan was developed based on the diagnosis of mechanical failure of eruption:
1. A spiral expander was used to distalize 26, resolving its mesial impaction and creating space for 65 to erupt.
2. A parallel expander was employed to alleviate crowding and ensure proper tooth alignment.
3. A custom removable appliance was designed to guide the eruption of 65, preventing further impaction.
Clinical Outcome
After six months of orthodontic treatment, 65 successfully erupted, and the palatal impaction of 25 was improved, while the mesial ectopic eruption of 26 was resolved. Radiographic examination confirmed significant relief of dental crowding, with noticeable improvement in occlusal function and arch stability. This case demonstrates that non-invasive treatment methods can effectively address complex eruption issues, avoiding extractions and other surgical interventions.
Conclusion: Early non-extraction intervention strategies can effectively manage complex eruption disorders, reduce trauma, and improve patient outcomes.
Spatiotemporal epidemiology of indigenous and imported malaria cases in Goa, western India
Authors: Mohanty Ajeet Kumar , Naik Aparna , Govekar Abhishek , Mazumdar Debattam , Prakash Pooja T , Sawant Sushant , Mahatme Kalpana , Bharti Praveen Kumar , Balasubramani Karuppusamy , Nina Praveen Balabaskaran 
Published: December 2024

Abstract

Background
The state of Goa in western India is world-renowned for its coastline and attracts millions of tourists across the world. Historically, Goa was among the malaria-endemic states in India, with Plasmodium vivax contributing to majority of the cases. Past malaria outbreaks in Goa have been linked to construction activities, and imported malaria cases threaten malaria elimination efforts in the state.
Methods
The population-normalized malaria data from the National Centre for Vector Borne Disease Control (NCVBDC) and the Directorate of Health Services, Goa was used to study the spatiotemporal dynamics of P. falciparum, P. vivax, and mixed infection in Goa from 2000-2023. The spatiotemporal distribution of native and imported malaria cases from 2014-2023 in the different primary/urban/community health centres (PHC/UHC/CHCs) of Goa was analysed using GIS. The spatio-temporal changes of the last three decades in Goa’s Land use/ Land cover (LU/LC) were assessed using Landsat satellite images, and its effect on malaria distribution was analysed.
Results
Over the study period (2000-2023), P. vivax contributed to 78.5% of the caseload. The malaria trend fluctuated from 2000-2008, with a steep decline observed from 2009 onwards, and in 2023, zero indigenous cases were reported. The six health centres of Candolim, Margao, Siolim, Vasco, Mapusa, and Panaji reported ~ 54% of the total native and imported malaria cases in Goa during 2014-2023. With 292 438 cases in 2023, the Porvorim UHC has emerged as a new hotspot of imported malaria cases. The LU/LC change analysis shows a a four-fold increase of built-up area, from about 70 sq. km in 1991 to 260 sq. km in 2024, with strong spatial overlap between new built-up areas and malaria cases.
Conclusion
Due to the concerted parasite and vector control strategies of the state health department, Goa has achieved the target of zero indigenous malaria cases in 2023. Despite achieving this milestone, the threat of imported malaria cases leading to local outbreaks is a serious concern.
A study on prognostic risk factors of cervical spondylotic myelopathy Study design: A retrospective analysis
Authors: Zhou Zihan , Su Yunxin , Shao Yuqi , Liu Jiayun , Wu Xincan , Gao Peng , Qin Tao , Xue Kaixiao , yin Guoyong , Chen Jian 
Published: December 2024

Abstract

Objective: To identify the risk factors that influence the prognosis of patients with cervical spondylotic myelopathy (CSM).
Methods: Clinical data were collected from 103 CSM patients treated between January 2023 and January 2024 in the Department of Orthopaedics at the First Affiliated Hospital of Nanjing Medical University. The data were retrospectively analyzed, with a one-year follow-up. Based on the Japanese Orthopaedic Association score, patients were categorized into good and poor recovery groups. Clinical characteristics, laboratory indices, and imaging findings were compared between the groups, and risk factors affecting CSM prognosis were identified.
Results: A comparison between the two groups revealed that age, symptom duration, spinal cord hyperintensity length on magnetic resonance imaging, and a history of diabetes were negatively correlated with the postoperative improvement rate of CSM. Conversely, preoperative neurological symptoms, spinal cord compression ratio, and preoperative Treg cell count were significantly positively correlated with postoperative improvement rates. The stratified analysis results indicated that preoperative neurological function serves as an independent prognostic predictor, remaining unaffected by other variables. Furthermore, Treg cell count was significantly correlated with the improvement rate, particularly in elderly patients.
Conclusion: The prognosis of CSM is affected by risk factors including age, preoperative JOA score, spinal cord compression ratio, lesion length, symptom duration, Treg cell count and history of diabetes.
Joint reconstruction using tricortical iliac crest bone graft block for intra-articular extension of aneurysmal bone cyst of distal tibia in a skeletally mature patient – a case report and review of literature.
Authors: Mishra Shaswat , Jain Manish , Lalchandani Vishal 
Published: December 2024

Abstract

Introduction: Aneurysmal Bone Cysts (ABC) are known to be largely limited to the metaphysis. Epiphyseal extension of the lesion, that too in a skeletally mature patient, has rarely been reported. Further, literature regarding management of these lesion, where sclerotherapy failed, is scarce. We describe a case of distal tibia ABC with intra-articular extension, where prior sclerotherapy failed, managed with curettage and iliac crest allograft block reconstruction of the joint with excellent functional outcome.
Method: The authors report a case of a 20-year-old lady presenting with swelling and pain in her ankle joint. X-rays and MRI showed an ABC in the distal tibia with extension to the joint. Biopsy confirmed the diagnosis which was followed by sclerotherapy, but the lesion recurred in a year’s time. Surgery in the form of excision, curettage, joint reconstruction using tricortical iliac crest bone autograft block was done which was fixed with plate osteosynthesis.
Result and Discussion: Patient under follow up at 3 years shows excellent clinical outcome, no evidence of recurrence, able to perform out her personal and professional activities with no restrictions. Addressing such a case is a very difficult task, and in a financially constrained scenario such as ours, brings its own set of challenges. This novel technique of ankle joint reconstruction using iliac crest graft has not been described elsewhere in literature. Such cases of joint involvement in ABCs are very rare, and literature on management of such lesion is even more scarce. Therefore, they need reporting to help in formulating better treatment protocols in such difficult scenarios.
Conclusion: The reconstructive of the ankle joint with tricortical iliac crest bone grafting in ABC of distal tibia with joint involvement can provide excellent clinical and radiological outcomes.
Power and Data Simultaneous Transmission Using Double-clad Fibers Towards 6G
Authors: Souza Letícia Carneiro , Pinto Felipe Batista Faro , Andrade Tomas Powell Vilena , Junior Arismar Cerqueira Sodré 
Published: December 2024

Abstract

To the best of our knowledge, this work represents the first report in the literature on the implementation of a radio-and power-over-fiber (RPoF) system utilizing double-clad fiber (DCF) aimed at the sixth generation of mobile communications networks (6G) operating in millimeter-waves (mm-waves). The deployed FiWi (fiber/wireless) system makes use of the DCF core and first cladding for simultaneously and optically transmitting data and power using the same fiber-optics link. For the first time, we demonstrate the simultaneous transmission of a broadband 26-GHz 5G New Radio (NR) signal in conjunction with 20 W of optical power through a 250-m DCF link. Such achievement represents a 150% reach enhancement, compared to the current commercial-available femtocells from the fourth and fifth generations of mobile communications networks (4G and 5G), which use Power-over-Ethernet (PoE) interfaces that typically provide 1 Gbps throughput limited to 100 m reach. The PoF key components of the remote antenna unit (RAU), such as the photodetector and RF amplifier, are optically powered by using PoF technology. We evaluate the PoF system efficiency and stability over extended periods and compare the RoF system performance, by means of conventionally versus optically powered. Experimental results indicate the proposed RPoF system meets the 3rd Generation Partnership Project (3GPP) requirements, in terms of the root mean square error vector magnitude (EVM RMS), with no impairments. Overall, our FiWi system demonstrator provides a throughput of 1.6 Gbps using 16-quadrature amplitude modulation (QAM) over 5-m wireless transmission in the mm-waves band. The obtained experimental data highlight the feasibility of integrating optical and wireless technologies for supporting more reliable and scalable beyond 5G (B5G) and 6G systems.
Comparative Outcomes of Six-Pack Versus Straight &amp; Full Fist Hand Exercise Following Open Reduction and Volar Plate Fixation in Distal Radius Fracture. A Prospective Randomized Control Trial
Authors: Luenam Suriya , Chompoonutprapa Pariphat , Kosiyatrakul Arkaphat 
Published: December 2024

Abstract

Purpose
Six-pack exercise (SPE) is composed of 6 finger motion patterns which targets several hand musculotendinous structures and provides comprehensive movement is commonly recommended after distal radius fracture fixation. We tested the hypothesis that the straight & full fist exercise (SFFE) hand exercise which has a less number and simple to understand is as effective as SPE.
Methods
Fifty-six patients who underwent volar plating for distal radius fracture were enrolled in this randomized controlled trial. Patients were allocated to either the SPE group (n=28) or the SFFE group (n=28). The primary outcome measure was Michigan Hand Questionnaire (MHQ) score. Secondary outcome parameters were hand stiffness, finger stiffness, Kapandji score, and grip strength. The evaluation was performed at 6 weeks, 3 months, and 6 months postoperatively.
Results
Forty-two patients were included in the final analysis: 20 in the SPE group and 22 in the SFFE group. There were no statistically significant differences between groups in all categories of MHQ score during the follow-ups except pain whichSPE group was lower at 6 months postoperatively (p < 0.05). We found that the SPE group had significantly higher incidence of little finger stiffness than SFFE group at 6-week follow-up (p < 0.05) while no significant differences were noted at any other time points. The hand stiffness, Kapandji score, and grip strength were not statistically significant different between both cohorts.
Conclusion
This randomized clinical trial demonstrated that SFFE could provide the comparable outcome to SPF following volar plating for distal radius fracture.
Clinical value of MRI laminar line-simulated decompression for predicting the efficacy of cervical laminoplasty
Authors: Ji Piyao , Ming Jianghua , Li Yaming , Ma Yonggang , Zhou Yan 
Published: December 2024

Abstract

Aim
The goal of this study was to investigate the clinical value of magnetic resonance imaging (MRI) laminar line (LL)-simulated decompression for predicting the efficacy of cervical laminoplasty (CLP).
Methods
Data of 60 patients who underwent CLP for cervical spondylotic myelopathy (CSM) from December 2020 to February 2023 were retrospectively analyzed. LL was defined as the line between the anterior-inferior margin of the superior lamina and the anterior-superior margin of the inferior lamina at the decompression segment, and the anterior dural border to the midsagittal diameter of LL (simulated decompression) was measured. The diameter of the dural sac in compression segment of preoperative MRI and spinal canal of postoperative MRI were measured. The correlations among the actual decompression diameter, the improvement rate of the modified Japanese Orthopedic Association (mJOA) score, the visual analog scale (VAS) score, the neck disability index (NDI) score, and the simulated decompression diameter were assessed.
Results
All patients were followed up for 12–38 months. Postoperative MRI results showed that the spinal cord was significantly shifted backward and the spinal cord compression was relieved. The midsagittal diameter of actual decompression and LL-simulated decompression were significantly increased compared with preoperative measurements (P < 0.001). The accuracy of LL simulation decompression was 91.7% (55/60) compared with the actual decompression effect. The mJOA, VAS and NDI scores were significantly higher at the final follow-up than before surgery (P < 0.001).
Conclusions
MRI LL-simulated decompression can predict the effect of spinal cord decompression and aid in the preoperative planning of CLP.
Effect of yoga on psychological aspect in persons in relief centers during the Meitei-Kuki clashes in Manipur.
Authors: Lakshmi R K Roshni Raj , Devi Naorem Jiteswori , Devi Naorem Romibai , Devi Naorem Nebita , Devi Shougaijam Menaka , Devi Thokchom Nandira 
Published: December 2024

Abstract

Background
Illegal immigrants of Kuki-Chin-Mizo tribes from Myanmar have infiltrated into Manipur leading to change in the geopolitics of the state leading to conflict. The ongoing conflict between Meiteis and Kukis has led to extreme acts of violence including brutal killings, sexual assault, destruction and demolition of public and private properties. The affected people have been adversely affected in various ways including their mental aspect of health. Yoga is proven to be beneficial for such conditions like exposure to conflict and violence.
Methods
After baseline assessment of anxiety, depression, perceived stress, resilience, self-esteem, and spiritual well-being, the participants were given yoga intervention for 8 weeks. Post assessment was taken after the intervention period.
Results
There is significant difference between the baseline and post assessments of anxiety, depression, perceived stress, self-esteem and spiritual well-being with p-values < 0.05.
Conclusion
Yoga is an effective method to improve mental health in conflict affected persons residing in relief centers.
Comparative analysis basketball shooting percentage using enhanced bio-inspired dwarf mongoose optimization algorithm with encircling foraging strategy
Authors: Luo Qifang , Li Shumin , Huang Huajuan , zhou yongquan 
Published: December 2024

Abstract

Estimates from the international basketball federation suggest that globally, at least 450 million individuals are engaged in basketball sports. This paper an enhanced dwarf mongoose optimization algorithm with encircling foraging strategy (EDMOA) for comparative analysis basketball shooting percentage is proposed. Initially, it identifies shooting parameters-such as shooting distance, shooting velocity, shooting height, and angle-for general shooting scenarios, analyzing these parameters to provide scientifically sound shooting recommendations. Subsequently, it investigates the parameters affecting three-pointers and free throws, outlining feasible shooting strategies. It compares and analyzes the differences between three-pointer and free-throw shooting techniques while assessing the impact of distance on shooting outcomes. Finally, the study investigates shooting for tall players and short players, identifying distinct shooting parameters for both types of athletes and analyzing the differences in shooting approaches. The experimental results show that within reasonable ranges of other parameters, shooting three-pointer yields 87.09% increase in shooting accuracy compared to shooting two-pointers, while maintaining a shooting angle of approximately 52° results in an 86.30% increase in shooting accuracy. Leveraging the EDMOA, this paper addresses the above-mentioned issues. The EDMOA improves upon the limitations of the dwarf mongoose optimization algorithm (DMOA), which suffers from slow convergence and susceptibility to local optima, by introducing encircling foraging strategies and a survival-of-the-fittest population mindset. The outcomes of this study offer reference points for basketball coaches in designing training regimes for athletes. This research aims to provide scientifically grounded guidance for basketball player training, ultimately enhancing shooting percentage.
A challenging case of IVC compression in an adult polycystic patient. A case report
Authors: Matarneh Ahmad , Akkari Abdelraouf , Sardar Sundus , Miller Ronald , Verma Navin , Ghahramani Nasrollah , farooq Umar 
Published: December 2024

Abstract

Adult polycystic kidney disease (ADPKD) is a multi system genetic disorder characterized by the development and progressive enlargement of fluid-filled cysts in both kidneys, along with other organs. As one of the main causes of kidney failure, ADPKD can progress to end-stage renal disease (ESRD), with over 50% of affected individuals progressing to ESRD by age 50. The symptoms in ADPKD are variable, with some patients experiencing nonspecific signs, while others present with symptoms related to the mass effect of enlarged kidneys on surrounding structures. This case report highlights an unusual presentation of ADPKD in a patient who developed symptoms of inferior vena cava (IVC) compression. Remarkably, these symptoms improved after bilateral nephrectomies, suggesting that bilateral nephrectomy would provide help in these situations.
Photochemical Strategy Enables the De Novo Synthesis of Saturated Bicyclic Amine Collections
Authors: Wang Lei , Feng Dewei , Geng Xiao , Zuo Lingling , Li Zhifang 
Published: December 2024

Abstract

Escape-from-Flatland concept have driven chemists pay more attention on the synthesis of C(sp3)-rich small molecules for potential drug candidates. Saturated bicyclic amines are a particularly relevant class of derivatives and their inherent structural rigidity ensures accurate three-dimensional (3D) disposition of exit vectors. Herein, we report the successful realization of a radical-polar crossover bicyclization reaction from easily available cyclopropylamines and substituted alkenes through photoredox catalysis. Notably, this approach introduces an innovative methodology for the de novo synthesis of a diverse collection of 4/5-, 5/5-, 6/5- and 7/5-fused saturated bicyclic amines in a systematic and modular manner that are difficult to achieve in previous methodologies. This work highlights the efficiency and utility of the photoinduced radical-polar crossover bicyclization and the applicability is showcased by excellent functional group tolerance, wide substrate scopes and simple derivatization reactions.
Origin and stability of generalized Wigner crystallinity in triangular moiré systems
Authors: Kumar Aman , Lewandowski Cyprian , Changlani Hitesh J. 
Published: December 2024

Abstract

Generalized Wigner crystals (GWC) on triangular moiré superlattices, formed from stacking two layers of transition metal chalcogenides, have been recently observed at multiple fractional fillings of the moiré unit cell [Y. Xu et al., Nature 587, 214 - 218 (2020), X. Huang et al. Nat. Phys. 17, 715 - 719 (2021), H. Li et al., Nature 597, 650 - 654 (2021)]. Motivated by these experiments, tied with the need for an accurate microscopic description of these materials, we explore the theoretical origins of GWC at $n=1/3$ and $2/3$ filling. We demonstrate the limitations of theoretical descriptions of these moiré GWCs relying on truncated (finite-range) electron-electron interactions instead of a long-range Coulomb interaction. We validate our findings by studying both classical and quantum mechanical effects at zero and finite temperatures. More generally, we discuss the role of charge frustration in the theoretical extended Hubbard-model phase diagram, identifying a ''pinball" phase, a partially quantum melted generalized Wigner crystal with coexisting solid and liquid-like features, with no classical analog. Quantum effects also explain the small, but experimentally detectable, asymmetry in the transition temperatures of the n=1/3 and 2/3 crystals. Our calculations reveal that the charge ordering temperature and the magnetic crossover temperature predicted using the long-range Coulomb interaction are correctly captured with appropriately renormalized nearest-neighbor interactions. The effective nearest-neighbor interaction strength is significantly weaker than previously reported, placing it close to a metal-insulator phase boundary. This observation has implications for future experiments that we discuss. We conclude by studying the dependence of melting temperatures on gate-to-sample separationand we also predict temperature scales at which magnetic crossovers should be observed.