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20481
New hash function based on C-MD structure and chaotic neural network
Published 2023-06-01“…In recent years, widely used hash algorithms such as MD5 and SHA-1 have been found to have varying degrees of security risks.The iterative structure of the SHA-2 algorithm is similar to that of SHA-1, making it vulnerable to attacks as well.Meanwhile, SHA-3 has a complex internal structure and low implementation efficiency.To address these issues, a keyed hash function was designed and implemented based on chaotic neural network and C-MD structure.The approach involved improving the Merkle-Damgard structure by proposing the chaotic neural network Merkle-Damgard (C-MD) structure.This structure can be used to design a hash function that can withstand attacks such as the middle attack, multiple collision attack, and second pre-image attack for long information.Besides, the chaotic neural network was used as the compression function to increase the complexity of the hash function and improve its collision resistance, while also enabling it to output multiple lengths.Moreover, a plaintext preprocessor was designed, which used the coupled image lattice to generate chaos sequence related to the length of the plaintext to fill the plaintext, thus enhancing the ability of the hash function to resist length expansion attacks.Simulation results demonstrate that the proposed hash function performs faster than SHA-2, SHA-3 and the same type of chaotic hash function proposed by Teh et al.It can resist second pre-image attack, multi-collision attack and differential attack, while also exhibiting better collision resistance and mapping uniformity.In addition, the proposed Hash function can output Hash values of different lengths, making it suitable for use in digital signature, key generation, Hash-based message authentication code, deterministic random bit generator, and other application fields.…”
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20482
Mirizzi Syndrome with Cholecystobiliary Fistula: Observation of Development from Asymptomatic Cholecystolithiasis to Surgery
Published 2020-01-01“…A 68-year-old woman presented at our hospital with right upper quadrant pain. She had been diagnosed as having asymptomatic cholecystolithiasis 4 years previously. …”
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20483
Il paliotto d’argento di Olimpia Aldobrandini su disegno di Carlo Fontana nella Chiesa del Gesù di Roma.
Published 2025-02-01“… Gli studi realizzati a partire dai primi anni Ottanta sulla figura e le funzioni degli agenti nelle diverse epoche dell’Europa moderna hanno offerto la possibilità ad un numero sempre maggiore di studiosi di approcciarsi alla ricerca mediante l’utilizzo di numerosi modelli interpretativi e approcci interdisciplinari. …”
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20484
Rare Pathology Case Report: Low-Grade Endometrial Stromal Sarcoma Forming Sex Cord– and Endometrioid Gland–Like Differentiation in Metastatic Foci
Published 2024-01-01“…They are commonly present in a younger demographic compared to other uterine tumors, with patients’ ages typically between 42 and 58 years old. …”
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20485
A Case of Atopic Myelitis with Cervical Cavernous Angioma
Published 2017-01-01“…A 37-year-old woman suffered from hand swelling caused by a house cat licking. At the same time when cavernous angioma had grown, she experienced a numbness in her four extremities, and multifocal peritumoral hyperintense spinal cord signals were seen. …”
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20486
D. João III e D. Miguel da Silva, bispo de Viseu: novas razões para um ódio velho
Published 2010-10-01Subjects: Get full text
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20487
Benign mature teratoma of the conus medullaris in a 57-year-old-female: case report and literature review
Published 2025-02-01“…Abstract Background The diagnosis of a mature teratoma in the conus medullaris is extremely rare, and few cases are reported in the literature. Case presentation We present a case of a 57-year-old woman who was referred from the neurology department for sudden weakness of the lower limbs. …”
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20488
A Prospective Open-Label Multicentre Trial on the Use of 1 G, Once Daily Ceftriaxone in Lower Respiratory Tract Infections
Published 1994-01-01“…This prospective. single open-label sludy was conducted in 14 Canadian centres to assess lhe efncacy of I g, once a day intravenous ceftriaxone treatment administered for a minimum of three days in patients with lower respiratory tract infection. …”
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20489
Removal of Nutrients from Fertilizer Plant Wastewater Using Scenedesmus sp.: Formation of Bioflocculation and Enhancement of Removal Efficiency
Published 2020-01-01“…The algal species was able to remove ammonium (NH4+), nitrate (NO3−), phosphate (PO43−), total phosphorus (TP), COD, and BOD5 with removal rates up to 93%, 84%, 97%, 96%, 93%, and 84%, respectively. …”
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20490
Fine as a type of disciplinary penalty against prisoners of war
Published 2023-09-01“…A clearly defined number of days (term), during which he or she is obliged to pay the corresponding amount of money has been set. …”
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20491
Diagnostic Challenge in a Patient with Severe Anion Gap Metabolic Acidosis
Published 2015-01-01“…Differential diagnoses include toxic alcohol ingestion, diabetic or starvation ketoacidosis, or 5-oxoproline acidosis. We present a 76-year-old female with type 2 diabetes mellitus, who was found at home in a confused state. …”
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20492
The magnesium-palladium-silver system: Thermodynamic properties of the liquid phase
Published 2023-01-01“…The experiments were performed for six separate series of liquid alloys starting from the binary alloys with constant xAg/xMg ratios equal to 1/9, 1/3, 1/1, and 3/1 for (Ag0.10Mg0.90)1-xPdx and (Ag0.25Mg0.75)1-xPdx at 1116 K and (Ag0.50Mg0.50)1-xPdx and (Ag0.75Mg0.25)1-xPdx at 1279 K and xMg/xPd ratios of 9/1 and 4/1 for (Mg0.90Pd0.10)1-xAgx and (Mg0.80Pd0.20)1-xAgx at 1116 K. Then, using the thermodynamic properties of the binary systems in the form of the Redlich-Kister equations and the changes in mixing enthalpies provided by this study, the ternary interaction parameters were determined with the Muggianu model and our own software (TerGexHm). …”
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20493
New trends in teaching foreign languages
Published 2018-06-01“…The main problem of this article is related to the fact that, despite the available methods of teaching foreign languages, the level of forming students’ language competencies remains extremely low; the methods proposed by the authors help the teacher to create a unique experience of teaching foreign languages in almost every lesson, provided that he / she is aware of the possible options for their use and how to configure them in a specific educational situation of teaching; not all modern methods in teaching foreign languages serve the needs of the student.The results of the study showed that the target and project methods of teaching foreign languages are effective tools to improve the students’ level of language proficiency and can be used both separately and in conjunction with the traditional methods of teaching foreign languages by teachers, specialists in the field of pedagogy and methods of teaching foreign languages, students and others.…”
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20494
Atmospheric air plasma pre-activation and customizable covalent functionalization of PVDF-membranes of microtiter filter plates
Published 2025-01-01“…Abstract Microtiter-plate-based systems are unified platforms of high-throughput experimentation (HTE). These polymeric devices are used worldwide on a daily basis—mainly in the pharmaceutical industry—for parallel syntheses, reaction optimization, various preclinical studies and high-throughput screening methods. …”
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20495
Long-Term Survival of More than 5 Years with Maintenance Therapy Using Single-Agent Pemetrexed in a Patient with Diffuse Malignant Peritoneal Mesothelioma
Published 2023-01-01“…The tumor cells were positive for AE1/AE2, calretinin, WT-1, D2-40, HEG1, EMA, BAP1, and MTAP and negative for carcinoembryonic antigen, MOC-31, Ber-Ep4, ER, PgR, TTF-1, claudin 4, and desmin. …”
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20496
Atypical Lipomatous Tumor/Well-Differentiated Liposarcoma Developed in a Patient with Progressive Muscular Dystrophy: A Case Report and Review of the Literature
Published 2017-01-01“…A 73-year-old woman with a diagnosis of limb-girdle MD visited our department for recurrence of a huge tumor in her left thigh. She had undergone resection of a lipoma at the same site more than 20 years earlier. …”
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20497
The Potential of Online Tasks to Facilitate Autonomous Language Learning with the Use of Online Dictionaries in a Higher Education ESP Classroom
Published 2025-01-01“…Revista Alicantina de Estudios Ingleses…”
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20498
The role of France in strengthening science in Serbia and the Western Balkans: Between scientific cooperation and science diplomacy
Published 2023-01-01“…The aforementioned influence, which followed its economic and political influence, was founded not only on the basis of the Alliance in the Great War (1914-1918), but primarily on the basis of the education and training of the Serbs and Balkans at the Sorbonne and at other French universities. After returning to their homeland, they not only occupied key positions in the state administration and reached ministerial positions, but also founded scientific disciplines and continued cooperation with their French professors and scientists. …”
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20499
Malignant glomus tumor of jejunum with liver and peritoneum metastasis: a rare case report
Published 2025-01-01“…Regrettably, the patient declined additional treatment, subsequently developing liver and peritoneal metastases one year later. She eventually died within 18 months of initial diagnosis. …”
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20500
Lack of robustness of hydrological models: a large-sample diagnosis and an attempt to identify hydrological and climatic drivers
Published 2025-02-01“…This paper presents a large-scale application of the robustness assessment test (RAT) for three hydrological models with different levels of complexity: GR6J, HYPE and MIKE SHE. …”
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