bluuebunny/crossref_metadata_2025_split huggingface dataset:
Autonomous Pick and Place for Mechanical Assembly WRS 2020 Assembly Challenge
Authors: Sidki Nahid 
Published: February 2023

The World Robot Summit (WRS) 2020 Assembly Challenge aims to realize the future of industrial robotics by building agile and lean production systems that can (1) respond to ever-changing manufacturing requirements for high-mix low-volume production, (2) be configured easily without paying a high cost for system integration, (3)	be reconfigured in an agile and lean manner, and (4)	be implemented as agile one-off manufacturing for the industry. One of the technical challenges of assembly is the detection, identification, and classification of a small object in an unstructured environment to grasp, manipulate, and insert it into the mating part to assemble the mechanical system. We presented an end-to-end system solution based on flexibility, modularity, and robustness with integrated machine vision and robust planning and execution. To achieve this, we utilized the behavior tree paradigm and a hierarchy of recovery strategies to ensure effective operation. We selected the behavior tree approach because of its design efficiency in creating complex systems that are modular, hierarchical, and reactive, and offer graphical representations with semantic meaning. These properties are essential for any part assembly task. Our system was selected for the WRS 2020 Assembly Challenge finals based on its successful performance in qualifying rounds.
Langerhans Cell Histiocytosis Presenting as a Lesser Trochanter Fracture in an Adolescent
Authors: McCambridge Teri Metcalf , Papakyrikos Cole , Levin Adam 
Published: February 2023

Case:
We present the case of an 18-year-old man with right hip pain who was found to have a lytic lesion of the lesser trochanter of the right femur with cortical destruction and a lytic lesion of the left inferior pubic ramus. Additional imaging and pathology testing confirmed a diagnosis of multifocal, single-system Langerhans cell histiocytosis (LCH) of the bone.

Conclusion:
LCH is a rare pediatric disease most commonly diagnosed in toddlers and young school-age children. Its epidemiologic characteristics are poorly described for young adults and older adolescents, in whom clinical suspicion should be maintained when evaluating multifocal osseous lesions.
Neglected Metatarsophalangeal Joint Dislocation of the Lesser Toe with Associated Metatarsal Fracture Malunion in a 4-Year-Old Child
Authors: Chandankere Vidyasagar , Rachakonda Kamalakar Rao , Maryada Venkateshwar Reddy , Reddy Guruva A.V. 
Published: February 2023

Case:
A 4-year-old girl presented with a 5-week-old, neglected fourth metatarsophalangeal (MTP) joint dislocation with malunion of the fourth metatarsal. A previous attempt at closed reduction had failed. The reduction was hindered by dynamic stabilizing of soft tissues around the MTP joint. Open reduction of the fourth MTP joint dislocation and corrective osteotomy of the fourth metatarsal was performed. The patient was pain-free without any cosmetic deformity at the 1-year follow-up.

Conclusion:
Prompt recognition of a MTP dislocation is vital. The long extensor tendon to the toe can hinder the closed reduction of the MTP dislocation. Osteotomy of the metatarsal malunion is necessary for stable reduction.

Level of Evidence:
4
Suspected Brown Recluse Spider Envenomation: Missed Diagnosis and Delayed Treatment of Loxoscelism
Authors: Gómez-Muñoz Eduardo , Pérez-Úbeda María José , Garríguez-Pérez Daniel , Echevarría-Marín Marta , Gimeno María Dolores , Marco Fernando 
Published: February 2023

Case:
We report the case of a previously healthy 51-year-old man who presented to our hospital after worsening clinical appearance of his left ring finger, despite antibiotics and previous surgical drainage for suspected abscess at an outside institution 3 weeks ago. He was admitted to our hospital for surgical debridement and decompression. After suspicion of cutaneous loxoscelism based on the clinical record and corticosteroid administration, the patient presented a favorable evolution.

Conclusion:
Cutaneous loxoscelism caused by a spider bite is present in Europe, mainly in the Mediterranean area, and should be considered in cases of skin infections which do not respond to antibiotics.
An Unexpected Postsurgical Phenomenon After Total Knee Arthroplasty: Nummular Eczema
Authors: Kost Yana , Shokrian Neda , Nazarian Roya S. , Mattis Daiva M. , Amin Bijal , McLellan Beth N. , Kamara Eli 
Published: February 2023

Cases:
Two elderly women each presented with a unilateral, erythematous rash 1 year after total knee arthroplasty (TKA) for osteoarthritis. Both cases were diagnosed as postsurgical nummular eczema (NE) and treated successfully with topical corticosteroids.

Conclusion:
We highlight a novel clinical presentation of postsurgical NE associated with TKA, previously reported only with breast reconstruction. Postsurgical NE may mimic periprosthetic infection or implant-related allergic contact dermatitis. Timely diagnosis and appropriate treatment in these cases prevented unnecessary testing and hospital admission for revision surgery. This case series highlights the varied presentation and wide differential diagnosis associated with postsurgical NE.
A Novel Hemiarthroplasty Design for Treatment of Post-traumatic Elbow Ankylosis and Distal Humerus Nonunion
Authors: Gabig Andrew M. , Malmquist Jacob A. , Brady Christina I. , Dutta Anil K. 
Published: February 2023

Case:
A 26 year old man sustained a blast injury to the right elbow, resulting in chronic distal humerus nonunion and post-traumatic ankylosis. After debridement and flap coverage, a custom distal humerus hemiarthroplasty construct with extramedullary orthogonal plating was used. Satisfaction and functional outcomes were maintained through 6 years of follow-up.

Conclusion:
This case presents a unique 1-stage surgical solution which demonstrates the potential for uncemented extramedullary hemiarthroplasty fixation with simultaneous compression plate osteosynthesis across a nonunion site. The potential for hemiarthroplasty designs to be linked to orthogonal plates preserves the intramedullary canal for future conversion to total elbow arthroplasty if necessary.
Repair of a Reverse Humeral Avulsion of the Glenohumeral Ligament and a Supraspinatus Tear in a Division I Collegiate Football Player
Authors: Bouck Trevor T. , Beyer Julia , Miller Jacob D. 
Published: February 2023

Case:
We present the case of a 21-year-old male, collegiate division I wide receiver, with a humeral avulsion of the posterior glenohumeral ligament (RHAGL) and near-full-thickness supraspinatus tear after falling on his outstretched arm. He returned to full collegiate participation with symptom resolution after arthroscopic repair of each tear.

Conclusion:
This case report emphasizes the importance of imaging studies in the diagnosis of RHAGL and details a treatment approach that provided an excellent result in a young, active patient. This information will bring attention to these rare injuries and provides reference for providers who encounter patients with similar symptoms or pathology.
Diffuse Pulmonary Metastases at Presentation of Giant Cell Tumor of Bone
Authors: Leland Christopher R. , Pratilas Christine A. , Gross John M. , Levin Adam S. 
Published: February 2023

Case:
We present a 23-year-old man with acute-on-chronic shoulder pain with an aggressive-appearing, destructive lesion of the left proximal humerus and diffuse lung metastases. Biopsy revealed conventional giant cell tumor of bone (GCTB) without sarcomatous differentiation, treated with resection and proximal humerus reconstruction. Without systemic treatment, his pulmonary metastases demonstrated modest spontaneous regression, with no impairment of pulmonary function.

Conclusions:
Although GCTB is known to metastasize to lungs, these deposits most commonly follow local recurrence. We describe a young adult with diffuse pulmonary nodules at initial presentation, although still following an indolent clinical course without the need for additional systemic therapy.
Cephalic Vein Intravascular Foreign Body After a Penetrating Injury
Authors: Stark Michael , Matzon Jonas L. 
Published: February 2023

Case:
A 65-year-old man presented with a right forearm metallic foreign body after a projectile injury while using a table saw. The area in question appeared infected prompting a surgical incision and drainage. In the operating room, the metallic foreign body was noted to be entirely intravascular within the lumen of the cephalic vein. It was ultimately removed, and the patient recovered without complication.

Conclusion:
Although foreign bodies after traumatic injury are common, it is exceedingly rare to encounter an intravascular foreign body. However, the consequences of proximal migration can be devastating and thus should be in the differential diagnosis for all treating surgeons.
Pediatric Medial Malleolus Reconstruction and Cartilage Preservation Using Iliac Crest Bone Graft After Ankle Trauma
Authors: Moody Derek , Cornelius Canon , Traver Jessica , Younas Shiraz 
Published: February 2023

Case:
This case report describes cartilage preservation and medial malleolus reconstruction using tricortical iliac crest autograft in a pediatric patient who sustained an ankle injury resulting in near-complete medial malleolus bone loss.

Conclusion:
Medial malleolar bone loss precluding open reduction and internal fixation is a challenging surgical problem, and there are few studies describing treatment. Our case report adds to the literature because our described technique resulted in a successful outcome for this patient.
Mucormycosis in the Hand
Authors: Jerome J. Terrence Jose , Thirumagal K. 
Published: February 2023

Case:
We report a 25-year-old insulin-dependent woman with extensive soft tissue infection in the left hand. The tissue cultures grew methicillin-resistant Staphylococcus aureus, and histology identified mucor species. The patient received a course of intravenous liposomal amphotericin B and vancomycin. Wound debridement, intravenous antimicrobial, and timely groin flap coverage to wound salvaged the hand and allowed her to return to daily work.

Conclusions:
Mucormycosis of the hand is rare and is associated with high morbidity and amputation. Little is known about reconstructing the mucor-infected wounds in hand. The pedicled groin flap is safe and reliable and can reconstruct complex defects on the hand, especially mucor-resultant wounds.
Interposition Arthroplasty for Chronic Proximal Humerus Osteomyelitis
Authors: Nahy Emilio , Velasquez Garcia Ausberto 
Published: February 2023

Case:
Two years after a right shoulder arthroscopic procedure, a 49-year-old woman presented with significant dysfunction and pain to our orthopaedic department. Laboratory and imaging evaluation demonstrated chronic glenohumeral osteomyelitis with irreparable damage to the humeral articular surface. A 2-stage soft-tissue shoulder interposition arthroplasty was performed to rebalance the joint. Long-term follow-up revealed functional results with pain control and no reinfection.

Conclusion:
For patients at high risk of reinfection or unable to undergo prosthetic joint implantation, this approach may be considered a functional alternative to salvage procedures.
“Flipped Lid” Fracture of the Lateral Tibial Plateau with Dislocated Lateral Meniscus
Authors: Kambhampati Srinivas B.S. , Chodavarapu Mounika N.S. , Kambhampati Anirudh P.S. , Chittoor Sai Prasad , Chinta Shyam Kumar 
Published: February 2023

Case:
We present a rare “flipped lid” type of fracture of the lateral tibial plateau with dislocation of the lateral meniscus into the notch with intact roots. This was fixed using headless screws through arthrotomy and peripheral suturing of the meniscus. At the 1-year follow-up, although there was terminal restriction of 10° flexion with redislocation of the lateral meniscus, the patient was able to perform all daily activities and declined further surgery.

Conclusion:
Flipped lid–type fracture is rare and results in good outcome when fixed early. Meniscal dislocation repair requires close monitoring to detect failure.
Research and Application of a Controllable Permeability Refracturing Technology in a High-Water-Cut Potential Layer
Authors: Qi M. , Yang E. , Liu Y. , Dong C. , Chen X. 
Published: February 2023

Summary
The Fuyu oil field is a typical shallow, low-temperature, low-permeability reservoir. At present, the oilfield composite water cut is 95%, artificial fractures interlace with natural fractures, and the distribution of ineffective circulation channels between wells is complex. This paper found that after reducing the permeability of the original fracture, refracturing can effectively improve the longitudinal extension range of the new fracture through numerical simulation. Therefore, a controllable permeability temporary plugging agent is studied, and controllable permeability refracture technology is proposed. The controllable permeability temporary plugging system is composed of elastic particles, quartz sand, and quick-soluble elastic enhancers, which are based on elastic particles that do not age, and long-term plugging can be achieved. Through physical experiments, 0.5–1-mm elastic particles with 70–140 mesh and 16–30 mesh quartz sand were used in different ratios (i.e., 5:5, 6:4, and 7:3). According to the closure pressure and the permeability of the fracturing layer, the ratio chart of elastic particles and quartz sand is established. The controllable permeability refracture technology can select the ratio of the quartz sand and elastic particles according to the closure pressure and the control requirements of the fracturing horizon permeability. Through field applications, we found that, compared with the conventional refracturing technology, the average daily fluid gain per well decreased from 5.0 to 3.9 tons, and the daily oil gain increased from 0.3 to 0.6 tons. The controllable permeability fracturing technology could reduce the permeability of the original fracture and improve the vertical production degree of the reservoir after refracturing. In addition, this method ensures that the original fracture has a certain conductivity and that the high-permeability layer reserves are not lost due to temporary plugging agents, thus expanding the planar sweep volume and effectively improving reservoir recovery. Nevertheless, the chart established is mainly suitable for shallow reservoirs, and the closure pressure is 3–15 MPa in this paper. Further testing and research are needed for deep reservoirs.
Investigation of petrophysical and hydrogeological parameters of the transboundary Nubian aquifer by combining geophysical and hydrogeological methods: a case study of Khartoum state, Sudan
Authors: Mohammed Musaab Adam Abbakar , Szabó Norbert P. , Szűcs Péter 
Published: February 2023

Abstract
This research follows an integrated approach for delineating subsurface lithology and estimating petrophysical and hydrogeological parameters of the Cretaceous Nubian formation aquifer in Khartoum state, Sudan. The Nubian aquifer is a fossilized transboundary regional aquifer that covers more than a quarter of the Sudan’s area. The integrated approach includes geophysical well-logging, surface geophysical electrical methods, and pumping data analysis. Geophysical well-logs, including self-potential (SP), natural gamma ray (GR), and long normal resistivity (RS) for with the aid of described lithological logs are employed to delineate the transboundary Nubian aquifer, and the obtained results are extrapolated by vertical electrical sounding (VES) and boreholes lithological logs. As a result, two aquifers are detected. An upper aquifer of an average thickness of 50 m and a lower aquifer of more than 200 m. These two aquifers are hydraulically connected under semi-confined to confined conditions. Consequently, areal variation maps of depth to aquifers and resistivity are prepared to avoid wells constructions failures. For a thorough evaluation of the aquifers, in the first stage, the petrophysical and hydrogeological parameters, including formation factor, total and effective porosity, shale volume, and hydraulic conductivity, are measured solely from geophysical well-logs with the aid of hydrochemical data. In the second step, the results of geophysical well-logs are interpolated and generalized to detect the spatial variation of the measured petrophysical and hydrogeological parameters over the study area. This was achieved by combining VES measurements and pumping test data with the geophysical well logs. The applied scheme minimized the expenses and effort of the global hydrogeological survey by improving the spatial coverage of the detected parameters. The measured petrophysical and hydrogeological parameters revealed that this formation is highly productive and ideal for groundwater development. However, optimizing groundwater discharge rates is recommended for sustainable water supply in Khartoum state.
Application of Artificial Intelligence Techniques for Predicting the Back-break in Blasting Operation
Authors: Sorabi Parviz , Ataei Mohammad , Jazi Mohammad Reza Alimoradi , Dehghani Hesam , Shakeri Jamshid , Habibi Mohammad Hosein 
Published: February 2023

Abstract
One of the adverse consequences of the blasting in the mineral extraction process in mines is back-break (BB) so that development of many fractures and cracks at large distances behind the last row of blast pits reduces the safety of the benches and increases operating costs. Since various parameters affect the BB, various techniques have been developed to predict and optimize its values. In this study, 48 blasts were investigated in Gol Gohar Mine No. 1 in the tailings section of the mine to predict BB based on the Whale Optimization Algorithm (WOA), Multiverse Optimizer (MVO), Sine Cosine Algorithm (SCA), and Ant Lion Optimizer (ALO). The parameters of bench height, hole length, burden, spacing, specific charge, the number of blasting rows, hole diameter, stemming, uniaxial compressive strength, joint spacing, and geological strength index (GSI) were evaluated as inputs to the models to predict back-breaks in the blasts. The comparison of the results of four BB prediction models suggested that the MVO-based model with a coefficient of determination (R2) of 0.9802, root-mean-square error (RMSE) of 0.2161, and mean squared error (MSE) of 0.1127 had the highest accuracy and the lowest error. So, it was introduced as the most appropriate model for predicting BB.
Widespread Pain Phenotypes Impact Treatment Efficacy Results in Randomized Clinical Trials for Interstitial Cystitis/ Bladder Pain Syndrome: A MAPP Network Study
Authors: Farrar John , Locke Kenneth , Clemens J , Griffith James , Harte Steven , Kirkali Ziya , Kreder Karl , Krieger John , Lai H. Henry , Moldwin Robert , Mullins Chris , Naliboff Bruce , Pontari Michel , Rodríguez Larissa , Schaeffer Anthony , Stephens-Shields Alisa , Sutcliffe Siobhan , Taple Bayley , Williams David , Landis J 
Published: February 2023

Abstract
Clinical trials of pain are notoriously difficult and inefficient in demonstrating efficacy even for known efficacious treatments. Determining the appropriate pain phenotype to study can be problematic. Recent work has identified the extend of widespread pain as an important factor in the likelihood of response to therapy, but has not been tested in clinical trials. Using data from three previously published negative studies of the treatment of interstitial cystitis/ bladder pain with data on the extent of widespread pain, we examined the response of patients to different therapies base on the amount of pain beyond the pelvis. Participants with predominately local but not widespread pain responded to therapy targeting local symptoms. Participants with widespread and local pain responded to therapy targeting widespread pain. Differentiating patients with and without widespread pain phenotypes may be a key feature of designing future pain clinical trials to demonstrate treatments that are effective versus not.
Preliminary study for counting fossil diatoms using a deep learning system: An approach to automated estimation of a paleoenvironmental index
Authors: Ishino Saki , Itaki Takuya , Hisada Daichi , Taira Yousuke 
Published: February 2023

Abstract
Two types (intercalary and terminal) of valves of Eucampia antarctica, a species of diatom, have shown potential as paleoenvironmental tools in the Southern Ocean. Taxonomists have counted the valves manually; however, they have required considerable time to assess the relationship between the ratio of the valves and environmental factors. Here, we present an end-to-end automatic approach for counting E. antarctica using the microfossil classification and rapid accumulation device (miCRAD) system, which enables model classification while acquiring microscopic images. We constructed a deep learning-based model for identifying the intercalary and terminal valves of E༎antarctica in a diatom assemblage. Additionally, we tested whether the constructed model functions as a manual count using an experimental image dataset containing all particle images acquired during the whole-scanning of permanent slides. Following cross-validation to verify the model performance potential, the model accuracy reached 0.92 with the use of the training images. The proportion of intercalary valves to all E. antarctica valves (i.e., a total of terminal and intercalary valves) calculated from the model counts yielded 0.55 on average, showing a + 0.05% difference against the actual value of 0.50. However, using the experimental dataset, the model classifications performed worse than the ones estimated based on the cross-validation. The lower performance was attributed to the imbalanced class dataset from the whole-scanning of permanent slides, which includes many other particles. This experiment demonstrated that the classification model constructed with miCRAD system has comparable performance in predicting E.antarctica valves to manual counting; however, screening images before the classification step will be necessary to completely automate the classification.
Characterisation of monoclonal antibodies against porcine epidemic diarrhea virus S1/S2 junction protein.
Authors: Huang Nan , Lang Qiaoli , Li Liping , Ge Liangpeng , Yang Xi 
Published: February 2023

Abstract
Pig producers have suffered serious economic losses from porcine epidemic diarrhea virus (PEDV) infection. Development of PEDV antibodies for detection or treatment has become an important research direction.The S1/S2 junction (S1S2J) cleavage site of S protein of PEDV is one of the major determinants of coronavirus infection success. In this study, we specifically selected the S1S2J protein of PEDV-AJ1102 (a representative strain of the G2 type) as target protein to immunise mice and generated monoclonal antibodies (mAbs) using hybridoma technology. Three mAbs showed high-binding activity to the S1S2J protein were further analysed. To reveal the characterisation of mAbs, variable region genes of antibodies were studied by using DNA sequencing, which revealed differences in their CDR3 amino acid sequences. We then developed a new method to identify the isotypes of these three mAbs. Results showed that these three antibodies were of the IgM type. As for the functions of these three mAbs, indirect immunofluorescence assay confirmed their good binding ability to Vero E6 cells infected with PEDV-SP-C strain (G1 type). Epitope analysis showed linear epitopes for all three mAbs. These antibodies were also used to detect infected cells via flow cytometry analysis. In summary, we have prepared and examined three mAbs against PEDV-S1S2J. The focal antibodies can be employed as detection antibodies for diagnostic reagents and further developed for other applications. We also designed a novel technique for easy and cost-saving identification of isotypes of mouse mAbs. Our results lay a good foundation for the development of research for PEDV.