This study explored the international research collaboration in BRICS’s leading universities and their performance past decade. Based on literature educational policies BRICS countries world university rankings, we select top of each country. We use Scopes database, timespan our covers 2012–2021 years, which allows us to identify critical points collaborations terms scale, quantity, impact, collaborative networks, subject areas. find that all have increased production publications at varying...

Abstract Solitary mixed squamous cell and glandular papilloma of the lung is an extremely rare benign neoplasm. We describe FDG PET/CT findings in a case solitary with high serum carcinoembryonic antigen level (63.3 ng/mL; reference, <5 ng/mL). The tumor showed intense uptake SUV max 23.8 mimicking cancer.

Lymphoma involving the esophagus is rare. We describe FDG PET/CT findings in a case of extranodal NK/T-cell lymphoma, nasal type larynx, hypopharynx, and cervical upper thoracic esophagus. The esophageal tumor showed segmentally increased uptake mimicking esophagitis. This indicates that lymphoma should be included differential diagnosis hypermetabolic diseases.

In this paper, we investigate the sum-rate maximization of cellular users (CUs) and device-to-device (D2D) pairs for D2D communications underlaying networks over Nakagami-m fading channel. We consider a resource-abundant scenario where number CUs is more than that discuss joint optimization signal-to-interference-plus-noise ratio (SINR) thresholds CU-D2D pairing. formulate problem as mixed-integer non-linear programming, which NP-hard in general. To solve problem, propose two-step approach....

We describe contrast-enhanced CT and FDG PET/CT findings in a case of thoracic SMARCA4-deficient undifferentiated tumor with extensive pleural involvement mediastinal lymph node metastases. Contrast-enhanced showed multiple enhancing right-sided masses soft tissue plaques enlarged nodes. The lesions nodes intense uptake mimicking malignant mesothelioma

There has been great interest in the research and development of different anti-skid highly wear-resistant materials that can effectively reduce energy losses improve efficiency numerous applications. This article reviews design, performance, application coating at home abroad. First, it introduces structure mechanism coatings. The preparation anti-slip coatings is mainly accomplished by changing base material granules as well method, performance determined with coefficient friction test....

Driven by the proliferation of data traffic and requirement user experience improvement, mobile wireless network is evolving towards heterogeneous networks (HetNet). The telecom operator experiencing unprecedented challenges on service maintenance operational expenditure, which drives demand for realizing automation in current networks. Cell outage detection a functionality aiming to automatically detect locate outages that occur radio due unexpected failures. Our work presents an automated...

We study the performance of applying maximal ratio combining (MRC) in a single-input-multiple-output (SIMO) system with Poisson field interferers. Due to correlated interference powers across different antennas, derivation exact outage probability is highly involved. To tackle this problem, we take advantage mathematical property sub-Gaussian α-stable signal vector, and then derive an analytical lower bound probability, which shown be very tight through Monte Carlo simulations. Our results...

We study the performance of a cooperative vehicular communication system in highway traffic scenario, where locations co-channel interfering vehicles are modeled by one-dimensional Poisson point process (PPP). Wireless channel modeling campaigns have shown that statistical patterns vehicle-to-vehicle (V2V) channels can often be Weibull distribution. Due to complex characteristics random fading and interference, analysis is involved. To address this issue, we establish framework for networks...

We describe FDG PET/CT findings in a patient with solitary isolated renal metastasis from squamous cell lung cancer. The appeared as small focus of activity at the cortex on initial staging tumor, misinterpreted cortical tracer retention, and was significantly enlarged second performed 4 months after first PET/CT. This case demonstrates usefulness identifying unexpected extrathoracic Focal uptake region cancer should be evaluated carefully to avoid misdiagnosis.

Abstract A 64-year-old man was referred because of the right ureteral obstruction. CT urography showed an intraluminal enhancing mass in midureter and nodule bladder wall. FDG PET/CT increased uptake unexpected hypermetabolic lesion jejunum. The patient underwent transurethral resection tumor, laparoscopic nephroureterectomy, partial enterectomy. Inverted urothelial papilloma bladder, high-grade carcinoma ureter, jejunal adenocarcinoma were confirmed by histopathology. Genetic testing...

The application of artificial ground freezing method in coastal areas is becoming more and widespread, but soils have high salt content. Presence weakens the mechanical strength frozen soil. Moreover, leads to point depression further diminishes dimension soil wall. Based on test data Shanghai Yangtze River Tunnel Project a model, this paper discusses adverse influence structure. Achievements conclusions could be guiding significance for project highly saline soils. Key words-Artificial...

Abstract Eosinophilic solid and cystic renal cell carcinoma is a recently described emerging tumor. Usefulness of FDG PET/CT in the management eosinophilic has been rarely reported. We describe findings case with lung metastases. The primary tumor its metastases showed intense uptake SUV max 29.3 for 21

Abstract Endobronchial metastasis from hepatocellular carcinoma is exceedingly rare. We describe FDG PET/CT findings in a case with isolated endobronchial 13 years after hepatectomy. The appeared as hypermetabolic branching tubular opacities, producing hot gloved finger sign on PET/CT. This indicates that the may be suggestive of extensive growing malignant condition but not mucoid plug.

Abstract Objective The aim of the study is to reinterpret prognostic prediction p53 expression categories in pancreatic ductal adenocarcinoma with exploration relationship between TP53 mutation genotype and pattern. Methods Data were retrospectively collected from consecutive patients who underwent primary resection. Complete loss function defined as nonsense frameshift mutations. A tissue microarray was used evaluate by immunohistochemistry categorized regulated, high, or negative. Results...

Abstract Hematogenous gastric metastasis from pancreatic cancer is extremely rare. We describe FDG PET/CT findings in a case of isolated hematogenous with significantly elevated serum carbohydrate antigen 19-9 level. The showed intense focal uptake mimicking primary tumor. elevation level may be useful as an aid the differential diagnosis.

Choriocarcinomas usually occur in the genital tracts of reproductive-age women after a gestational event. Primary pulmonary choriocarcinoma is very rare. We describe FDG PET/CT findings primary with multiple intrapulmonary metastases postmenopausal woman elevated serum beta human chorionic gonadotropin level. On PET/CT, large lung tumor showed intense uptake (SUV max , 46), and small variable 27). should be included differential diagnosis FDG-avid lesions levels, including metastatic cancer.

Solving differential equations is crucial in diverse fields, including finance, where accurate pricing of financial products essential for risk management and market analysis. The Heston model, known its superior ability to capture volatility, has been hampered by the computational bottleneck equation solution. This paper presents a groundbreaking machine learning-based framework that leverages GPU acceleration significantly enhance speed accuracy model calculations. By strate-gically...

Abdominal-wall metastasis following laparoscopic surgery for colorectal cancer is rare. We describe FDG PET/MRI findings in a case of isolated abdominal incisional site after colon cancer. The abdominal-wall showed slight hyperintensity on T2-weighted fat-suppressed image and intense focal uptake PET. This demonstrates the usefulness detecting atypical from

Abstract Although pleomorphic adenomas of the salivary glands are benign tumors, they can metastasize to distant organs without evidence malignant transformation. We describe FDG PET/CT finding in a case metastasizing adenoma right ilium occurring 22 years after initial surgical resection lip adenoma. On PET/CT, iliac metastasis appeared as an expansile osteolytic lesion with heterogeneous activity. This indicates that adenoma, although rare, should be included differential diagnosis...