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2,232 Results Found

  • Review
  • Open Access
10 Citations
4,720 Views
25 Pages

Application of Dynamic Fragmentation Methods in Multimedia Databases: A Review

  • Felipe Castro-Medina,
  • Lisbeth Rodríguez-Mazahua,
  • Asdrúbal López-Chau,
  • Jair Cervantes,
  • Giner Alor-Hernández and
  • Isaac Machorro-Cano

30 November 2020

Fragmentation is a design technique widely used in multimedia databases, because it produces substantial benefits in reducing response times, causing lower execution costs in each operation performed. Multimedia databases include data whose main char...

  • Article
  • Open Access
5 Citations
3,278 Views
19 Pages

A New Method of Dynamic Horizontal Fragmentation for Multimedia Databases Contemplating Content-Based Queries

  • Felipe Castro-Medina,
  • Lisbeth Rodríguez-Mazahua,
  • Asdrúbal López-Chau,
  • Jair Cervantes,
  • Giner Alor-Hernández,
  • Isaac Machorro-Cano and
  • Mario Leoncio Arrioja-Rodríguez

The proper storage and management of multimedia data is a topic of great interest to industry and academia. Database fragmentation plays a fundamental role as a mechanism to guarantee cost reduction and improve response time performance in distribute...

  • Article
  • Open Access
31 Citations
6,604 Views
21 Pages

17 February 2017

Ecological land is a land use category provided with considerable ecological value and a vital indicator reflecting regional eco-environmental quality. However, it has experienced severe fragmentation during the rapid urbanization in China which stro...

  • Article
  • Open Access
6 Citations
3,046 Views
8 Pages

Snapshots of the Fragmentation for C70@Single-Walled Carbon Nanotube: Tight-Binding Molecular Dynamics Simulations

  • Ji Young Lee,
  • Changhoon Lee,
  • Eiji Osawa,
  • Jong Woan Choi,
  • Jung Chul Sur and
  • Kee Hag Lee

In previously reported experimental studies, a yield of double-walled carbon nanotubes (DWCNTs) at C70@Single-walled carbon nanotubes (SWCNTs) is higher than C60@SWCNTs due to the higher sensitivity to photolysis of the former. From the perspective o...

  • Article
  • Open Access
5 Citations
7,028 Views
12 Pages

11 December 2015

Antibodies have been increasingly used as pharmaceuticals in clinical treatment. Thermal stability and unfolding process are important properties that must be considered in antibody design. In this paper, the structure-encoded dynamical properties an...

  • Article
  • Open Access
12 Citations
9,944 Views
18 Pages

Molecular Dynamics Simulation of the Crystallizable Fragment of IgG1—Insights for the Design of Fcabs

  • Balder Lai,
  • Christoph Hasenhindl,
  • Christian Obinger and
  • Chris Oostenbrink

2 January 2014

An interesting format in the development of therapeutic monoclonal antibodies uses the crystallizable fragment of IgG1 as starting scaffold. Engineering of its structural loops allows generation of an antigen binding site. However, this might impair...

  • Article
  • Open Access
7 Citations
3,142 Views
19 Pages

26 March 2022

Among landscapes, rural landscapes are important because they simultaneously present functional and cultural aspects. Rural landscapes are often created to modify the Earth’s surface according to different human needs and, among these modifying...

  • Article
  • Open Access
4 Citations
2,395 Views
13 Pages

Molecular Dynamics Modeling of Pulsed Laser Fragmentation of Solid and Porous Si Nanoparticles in Liquid Media

  • Irina A. Kutlubulatova,
  • Maria S. Grigoryeva,
  • Veronika A. Dimitreva,
  • Stanislav Yu. Lukashenko,
  • Andrey P. Kanavin,
  • Viktor Yu. Timoshenko and
  • Dmitry S. Ivanov

23 September 2023

The production of non-toxic and homogeneous colloidal solutions of nanoparticles (NPs) for biomedical applications is of extreme importance nowadays. Among the various methods for generation of NPs, pulsed laser ablation in liquids (PLAL) has proven...

  • Article
  • Open Access
2 Citations
1,748 Views
20 Pages

A Fast Recognition Method for Dynamic Blasting Fragmentation Based on YOLOv8 and Binocular Vision

  • Ming Tao,
  • Ziheng Xiao,
  • Yulong Liu,
  • Lei Huang,
  • Gongliang Xiang and
  • Yuanquan Xu

6 June 2025

As the primary method used in open-pit mining, blasting has a direct impact on the efficiency and cost of subsequent operations. Therefore, dynamic identification of rock fragment size after blasting is essential for evaluating blasting quality and o...

  • Article
  • Open Access
17 Citations
5,863 Views
12 Pages

Structure-driven fragment-based (SDFB) approaches have provided efficient methods for the identification of novel drug candidates. This strategy has been largely applied in discovering several pharmacological ligand classes, including enzyme inhibito...

  • Article
  • Open Access
15 Citations
5,386 Views
17 Pages

Production of Antigen-Binding Fragment against O,O-Diethyl Organophosphorus Pesticides and Molecular Dynamics Simulations of Antibody Recognition

  • Zi-Jian Chen,
  • Xuan Zhang,
  • Bing-Feng Wang,
  • Mei-Fang Rao,
  • Hong Wang,
  • Hong-Tao Lei,
  • Hui Liu,
  • Yan Zhang,
  • Yuan-Ming Sun and
  • Zhen-Lin Xu

Immunoassay for pesticides is an emerging analytical method since it is rapid, efficient, sensitive, and inexpensive. In this study, a recombinant antigen-binding fragment (Fab) against a broad set of O,O-diethyl organophosphorus pesticides (DOPs) wa...

  • Article
  • Open Access
2 Citations
2,869 Views
19 Pages

5 June 2024

TRAF6 is an E3 ubiquitin ligase that plays a crucial role in cell signaling. It is known that MMP is involved in tumor metastasis, and TRAF6 induces MMP-9 expression by binding to BSG. However, inhibiting TRAF6’s ubiquitinase activity without d...

  • Article
  • Open Access
16 Citations
4,330 Views
17 Pages

8 February 2020

Dynamic fracture and fragmentation characteristics of explosively driven rings and cylinders are important issues in the field of weapon effectiveness and protection. However, the comparison of fracture characteristics between metal cylinder and ring...

  • Article
  • Open Access
3 Citations
1,739 Views
15 Pages

30 November 2023

Blocking the interaction between programmed cell death-1 (PD-1) and programmed cell death-ligand 1 (PD-L1) by directly targeting the PD-L1 dimer has emerged as a hot topic in the field of cancer immunotherapy. Epigallocatechin gallate (EGCG), a natur...

  • Article
  • Open Access
938 Views
16 Pages

Dynamic Accumulation and Bio-Mediated Fragmentation of Microplastics in the Digestive System of Red Swamp Crayfish (Procambarus clarkii)

  • Yueyue Huang,
  • Qiqi Li,
  • Xinyu Xiang,
  • Jingyu Jiang,
  • Jiong Li,
  • Huili Chen,
  • Ming Zhang and
  • Binsong Jin

8 October 2025

The dynamic behavior and biologically mediated transformation of microplastics (MPs) in crustaceans remain insufficiently explored in aquatic ecotoxicology. In this study, we employed the red swamp crayfish (Procambarus clarkii) as a model organism t...

  • Technical Note
  • Open Access
4 Citations
1,864 Views
14 Pages

13 December 2023

To clearly realize the dynamic process as well as the dynamic fragmentation behavior of a long run-out rockslide, a novel numerical method for landslide simulation of the coupled finite-discrete element method (FDEM) was applied and the Jichang rocks...

  • Article
  • Open Access
6 Citations
2,973 Views
11 Pages

12 October 2020

Fragment-Based Drug Discovery (FBDD) approaches have gained popularity not only in industry but also in academic research institutes. However, the computational prediction of the binding mode adopted by fragment-like molecules within a protein bindin...

  • Article
  • Open Access
528 Views
11 Pages

Study on the Fracture Characteristics and Mechanisms of Iron Ore Under Dynamic Loading

  • Yilin Tian,
  • Peng Xu,
  • Hua Li,
  • Junjie Li,
  • Shiqing Zhou,
  • Yanting Chen,
  • Xuyang Chang and
  • Zhibo Lin

26 October 2025

The dynamic fracture process of iron ore under blast loading is an important manifestation of ore fragmentation. To investigate the dynamic fracturing process of iron ore, Hopkinson bar experiments were conducted under different impact loads. The res...

  • Article
  • Open Access
22 Citations
3,277 Views
16 Pages

Dynamic Mechanical and Microstructural Properties of Outburst-Prone Coal Based on Compressive SHPB Tests

  • Zhenhua Yang,
  • Chaojun Fan,
  • Tianwei Lan,
  • Sheng Li,
  • Guifeng Wang,
  • Mingkun Luo and
  • Hongwei Zhang

6 November 2019

Understanding the dynamic mechanical behaviors and microstructural properties of outburst-prone coal is significant for preventing coal and gas outbursts during underground mining. In this paper, the split Hopkinson pressure bar (SHPB) tests were com...

  • Review
  • Open Access
23 Citations
9,112 Views
18 Pages

28 June 2020

Solution nuclear magnetic resonance (NMR) spectroscopy is a powerful tool to study structures and dynamics of biomolecules under physiological conditions. As there are numerous NMR-derived methods applicable to probe protein–ligand interactions...

  • Article
  • Open Access
6 Citations
4,669 Views
16 Pages

29 August 2022

This paper proposes a target damage calculation method based on the profit-loss value of a warhead fragment group. The group is discretized into a fan-shaped column warhead fragment dispersion arrangement model, and the angle of its intersection with...

  • Article
  • Open Access
2 Citations
758 Views
20 Pages

In this paper, we propose a grouping-based dynamic routing, core, and spectrum allocation (RCSA) method for preventing spectrum fragmentation and inter-core crosstalk in elastic optical path networks based on multi-core fiber environments. Multi-core...

  • Review
  • Open Access
41 Citations
3,189 Views
19 Pages

Structure Refinement and Fragmentation of Precipitates under Severe Plastic Deformation: A Review

  • Boris B. Straumal,
  • Roman Kulagin,
  • Leonid Klinger,
  • Eugen Rabkin,
  • Petr B. Straumal,
  • Olga A. Kogtenkova and
  • Brigitte Baretzky

14 January 2022

During severe plastic deformation (SPD), the processes of lattice defect formation as well as their relaxation (annihilation) compete with each other. As a result, a dynamic equilibrium is established, and a steady state is reached after a certain st...

  • Article
  • Open Access
13 Citations
2,464 Views
20 Pages

23 February 2022

The dynamic response behavior of concrete is constantly concerned because of seismic, impact and explosion events in the service of constructions. As a classic device for testing the dynamic mechanical properties of materials, the splitting Hopkinson...

  • Article
  • Open Access
4 Citations
2,424 Views
19 Pages

The Effect of Surface Electroplating on Fragment Deformation Behavior When Subjected to Contact Blasts

  • Yuanpei Meng,
  • Yuan He,
  • Chuanting Wang,
  • Yue Ma,
  • Lei Guo,
  • Junjie Jiao and
  • Yong He

4 August 2023

Preformed fragments can deform or even fracture when subjected to contact blasts, which might lead to a reduction of the terminal effect. Therefore, to solve this problem, the effect of surface electroplating on the fragment deformation behavior unde...

  • Feature Paper
  • Article
  • Open Access
17 Citations
3,610 Views
19 Pages

31 May 2023

Forests play an irreplaceable role in preserving soil and water, as well as realizing carbon neutrality. However, logging and urban expansion have caused widespread forest fragmentation globally, resulting in biodiversity loss and carbon emissions. T...

  • Feature Paper
  • Article
  • Open Access
21 Citations
5,453 Views
26 Pages

30 October 2019

Two isoforms of extracellular regulated kinase (ERK), namely ERK-1 and ERK-2, are associated with several cellular processes, the aberration of which leads to cancer. The ERK-1/2 inhibitors are thus considered as potential agents for cancer therapy....

  • Article
  • Open Access
1 Citations
1,509 Views
28 Pages

30 May 2025

Clusterin is one of the many known proteins implicated in cancer chemoresistance, which hinders the effectiveness of chemotherapy. This study aimed to design novel inhibitors targeting clusterin using fragment-based drug discovery (FBDD). This approa...

  • Article
  • Open Access
3 Citations
3,409 Views
14 Pages

Total Electron Detachment and Induced Cationic Fragmentation Cross Sections for Superoxide Anion (O2) Collisions with Benzene (C6H6) Molecules

  • Carlos Guerra,
  • Sarvesh Kumar,
  • Fernando Aguilar-Galindo,
  • Sergio Díaz-Tendero,
  • Ana I. Lozano,
  • Mónica Mendes,
  • Juan C. Oller,
  • Paulo Limão-Vieira and
  • Gustavo García

23 January 2022

In this study, novel experimental total electron detachment cross sections for O2 collisions with benzene molecules are reported for the impact energy range (10–1000 eV), as measured with a transmission beam apparatus. By analysing the p...

  • Review
  • Open Access
36 Citations
12,103 Views
21 Pages

23 August 2017

Solution NMR spectroscopy is a powerful tool to study protein structures and dynamics under physiological conditions. This technique is particularly useful in target-based drug discovery projects as it provides protein-ligand binding information in s...

  • Article
  • Open Access
36 Citations
9,376 Views
22 Pages

Land Cover Dynamics and Mangrove Degradation in the Niger Delta Region

  • Iliya Ishaku Nababa,
  • Elias Symeonakis,
  • Sotirios Koukoulas,
  • Thomas P. Higginbottom,
  • Gina Cavan and
  • Stuart Marsden

4 November 2020

The Niger Delta Region is the largest river delta in Africa and features the fifth largest mangrove forest on Earth. It provides numerous ecosystem services to the local populations and holds a wealth of biodiversity. However, due to the oil and gas...

  • Article
  • Open Access
2,022 Views
19 Pages

Computational Insights into Acrylamide Fragment Inhibition of SARS-CoV-2 Main Protease

  • Ping Chen,
  • Liyuan Wu,
  • Bo Qin,
  • Haodong Yao,
  • Deting Xu,
  • Sheng Cui and
  • Lina Zhao

12 November 2024

The pathogen of COVID-19, SARS-CoV-2, has caused a severe global health crisis. So far, while COVID-19 has been suppressed, the continuous evolution of SARS-CoV-2 variants has reduced the effectiveness of vaccines such as mRNA-1273 and drugs such as...

  • Review
  • Open Access
15 Citations
7,518 Views
21 Pages

Computational Modeling of DNA 3D Structures: From Dynamics and Mechanics to Folding

  • Zi-Chun Mu,
  • Ya-Lan Tan,
  • Jie Liu,
  • Ben-Gong Zhang and
  • Ya-Zhou Shi

17 June 2023

DNA carries the genetic information required for the synthesis of RNA and proteins and plays an important role in many processes of biological development. Understanding the three-dimensional (3D) structures and dynamics of DNA is crucial for underst...

  • Article
  • Open Access
20 Citations
4,087 Views
22 Pages

Dynamic Landscape Fragmentation and the Driving Forces on Haitan Island, China

  • Jingwen Ai,
  • Liuqing Yang,
  • Yanfen Liu,
  • Kunyong Yu and
  • Jian Liu

15 January 2022

Island ecosystems have distinct and unique vulnerabilities that place them at risk from threats to their ecology and socioeconomics. Spatially exhibiting the fragmentation process of island landscapes and identifying their driving factors are the fun...

  • Article
  • Open Access
1 Citations
7,763 Views
9 Pages

13 January 2011

Laser induced opening of the C60 cage is studied by a semiclassical electron-radiation-ion dynamics technique. The simulation results indicate that the C60 cage is abruptly opened immediately after laser excitation. The opening of the C60 cage induce...

  • Article
  • Open Access
1 Citations
1,877 Views
18 Pages

Genetic Diversity and Connectivity of the Vulnerable Species Phengaris nausithous in Palencia (Northern Spain)

  • Luis Fernando Sánchez-Sastre,
  • Óscar Ramírez-del-Palacio,
  • Pablo Martín-Ramos and
  • María-Ángeles Hernández-Minguillón

11 February 2025

Habitat fragmentation is one of the most critical threats to species conservation, particularly for those with strict habitat preferences and specialized feeding and reproductive behaviors. In such cases, dispersal is essential for gene flow, playing...

  • Article
  • Open Access
6 Citations
5,916 Views
22 Pages

Discovery and Characterization of a Cryptic Secondary Binding Site in the Molecular Chaperone HSP70

  • Suzanne O’Connor,
  • Yann-Vaï Le Bihan,
  • Isaac M. Westwood,
  • Manjuan Liu,
  • Oi Wei Mak,
  • Gabriel Zazeri,
  • Ana P. R. Povinelli,
  • Alan M. Jones,
  • Rob van Montfort and
  • Ian Collins
  • + 1 author

26 January 2022

Heat Shock Protein 70s (HSP70s) are key molecular chaperones that are overexpressed in many cancers and often associated with metastasis and poor prognosis. It has proven difficult to develop ATP-competitive, drug-like small molecule inhibitors of HS...

  • Article
  • Open Access
2 Citations
4,596 Views
16 Pages

Dynamic Properties of Heart Fragments from Different Regions and Their Synchronization

  • Shin Arai,
  • Kento Lloyd,
  • Tomonori Takahashi,
  • Kazuki Mammoto,
  • Takashi Miyazawa,
  • Kei Tamura,
  • Tomoyuki Kaneko,
  • Kentaro Ishida,
  • Yuuta Moriyama and
  • Toshiyuki Mitsui

The dynamic properties of the heart differ based on the regions that effectively circulate blood throughout the body with each heartbeat. These properties, including the inter-beat interval (IBI) of autonomous beat activity, are retained even in in v...

  • Article
  • Open Access
4 Citations
1,921 Views
13 Pages

12 July 2024

There is an urgent need for a thorough assessment of forest landscape fragmentation to inform forest protection and restoration, and reforestation policies. However, there is currently a lack of an effective comprehensive index for forest landscape f...

  • Article
  • Open Access
2,343 Views
21 Pages

29 July 2021

The effect of different constitutive modelling choices is crucial under a high strain rate as encountered in ballistic applications. Natural fragmentation of explosively driven cylinder rings is chosen as a simplified example to describe the ability...

  • Article
  • Open Access
23 Citations
4,714 Views
18 Pages

Fragment-Based Approaches Identified Tecovirimat-Competitive Novel Drug Candidate for Targeting the F13 Protein of the Monkeypox Virus

  • Yasir Ali,
  • Hina Imtiaz,
  • Muhammad Mutaal Tahir,
  • Fouzia Gul,
  • Umair Ali Khan Saddozai,
  • Ashfaq ur Rehman,
  • Zhi-Guang Ren,
  • Saadullah Khattak and
  • Xin-Ying Ji

19 February 2023

Monkeypox is a serious public health issue in tropical and subtropical areas. Antivirals that target monkeypox proteins might lead to more effective and efficient therapy. The F13 protein is essential for the growth and maturation of the monkeypox vi...

  • Perspective
  • Open Access
3 Citations
2,548 Views
10 Pages

14 July 2022

Fullerenes, such as C60, are ideal systems to investigate energy redistribution following substantial excitation. Ultra-short and ultra-intense free electron lasers (FELs) have allowed molecular research in a new photon energy regime. FELs have allow...

  • Article
  • Open Access
2,510 Views
12 Pages

23 September 2020

In the following paper, we present the results of our studies on the interactions of the Aβ1-42 peptide and its three short fragments, namely Aβ5-16 (RHDSGYEVHHQK; HZ1), Aβ8-13 (SGYEVH; HZ2), and Aβ8-12 (SGYEV; HZ3) with selected...

  • Article
  • Open Access
2 Citations
1,474 Views
20 Pages

29 August 2024

Forest fragmentation and urban shrinkage have become the focus of attention in global ecological conservation, with the goal of achieving sustainable development. However, few studies have been concerned with urban forest patterns in shrinking cities...

  • Article
  • Open Access
425 Views
17 Pages

Dynamics of Native Forests and Exotic Tree Plantations in Southern Chile

  • Alheli Flores-Ferrer,
  • John Gajardo Valenzuela,
  • Claudio Verdugo Reyes,
  • Cristóbal Verdugo Vásquez and
  • Gerardo Acosta-Jamett

20 January 2026

Assessing the dynamics between native forests and exotic tree plantations is key to understanding the drivers of native forest transformation and conservation challenges. We examined these dynamics across four zones in the Los Ríos and Los Lag...

  • Article
  • Open Access
2,224 Views
12 Pages

Is the Stalk of the SARS-CoV-2 Spike Protein Druggable?

  • Ludovico Pipitò,
  • Christopher A. Reynolds and
  • Giuseppe Deganutti

14 December 2022

The spike protein is key to SARS-CoV-2 high infectivity because it facilitates the receptor binding domain (RBD) encounter with ACE2. As targeting subunit S1 has not yet delivered an ACE2-binding inhibitor, we have assessed the druggability of the co...

  • Article
  • Open Access
4 Citations
3,469 Views
20 Pages

20 August 2024

The search for anticancer drugs that target ferroptosis is a promising avenue of research. SLC7A11, a key protein involved in ferroptosis, has been identified as a potential target for drug development. Through screening efforts, novel inhibitors of...

  • Article
  • Open Access
2 Citations
1,083 Views
22 Pages

22 May 2025

Artificial reservoirs formed by hydroelectric dams are young ecosystems requiring water quality monitoring, as they often serve local populations. Traditionally, this is performed through hydrochemical and sanitary assessments, alongside phytoplankto...

  • Article
  • Open Access
4 Citations
4,290 Views
16 Pages

The dopamine D4 receptor (D4R) is a promising therapeutic target in widespread diseases, and the search for novel agonists and antagonists appears to be clinically relevant. The mechanism of binding to the receptor (R) for antagonists and agonists va...

  • Article
  • Open Access
7 Citations
2,946 Views
9 Pages

26 February 2021

Infection of hosts by morbilliviruses is facilitated by the interaction between viral hemagglutinin (H-protein) and the signaling lymphocytic activation molecule (SLAM). Recently, the functional importance of the n-terminal region of human SLAM as a...

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