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1,847 Results Found

  • Article
  • Open Access
14 Citations
5,631 Views
13 Pages

Vision in Futsal Players: Coordination and Reaction Time

  • Henrique Nascimento,
  • Cristina Alvarez-Peregrina,
  • Clara Martinez-Perez and
  • Miguel Ángel Sánchez-Tena

Background: Coordination and reaction time are relevant aspects of a sport’s competitive performance within teams. The aim of this study was to explore if a group of futsal players, in a laboratory context, would present better results from actions w...

  • Feature Paper
  • Article
  • Open Access
50 Citations
7,808 Views
17 Pages

Calculating Iso-Committor Surfaces as Optimal Reaction Coordinates with Milestoning

  • Ron Elber,
  • Juan M. Bello-Rivas,
  • Piao Ma,
  • Alfredo E. Cardenas and
  • Arman Fathizadeh

11 May 2017

Reaction coordinates are vital tools for qualitative and quantitative analysis of molecular processes. They provide a simple picture of reaction progress and essential input for calculations of free energies and rates. Iso-committor surfaces are cons...

  • Feature Paper
  • Article
  • Open Access
5 Citations
1,889 Views
11 Pages

7 April 2025

We address the scientific “time” concept in the context of more general relaxation processes toward the Wärmetod of thermodynamic equilibrium. More specifically, we sketch a construction of a conceptual ladder of chemical reaction st...

  • Article
  • Open Access
1,043 Views
11 Pages

Influence of Anthropometric Height on Oculo-Manual Coordinative Reaction Time

  • Angelo Rodio,
  • Luigi Fattorini,
  • Lavinia Falese,
  • Annalisa D’Ermo,
  • Alessandro Biffi,
  • Fredrick Fernando and
  • Tommaso Di Libero

Objectives: This work investigated the influence of anthropometric height on oculo-manual ability during a visuo-motor reaction time task. The aim was to determine whether aligning test configurations with individual stature changes performance outco...

  • Review
  • Open Access
5 Citations
3,025 Views
18 Pages

12 March 2023

Energy is the substance foundation of human society. Single−atom catalysts (SACs) have emerged as promising electrode materials in the energy field owing to their unique characteristics. It was demonstrated that the hydrogen evolution reaction...

  • Article
  • Open Access
40 Citations
10,290 Views
9 Pages

Training Using a Commercial Immersive Virtual Reality System on Hand–Eye Coordination and Reaction Time in Young Musicians: A Pilot Study

  • Sebastian Rutkowski,
  • Mateusz Adamczyk,
  • Agnieszka Pastuła,
  • Edyta Gos,
  • Carlos Luque-Moreno and
  • Anna Rutkowska

The implementation of virtual reality (VR) opens up a wide range of possibilities for the development of dexterity, speed and precision of movements. The aim of this study was to investigate whether immersive VR training affected the hand–eye coordin...

  • Article
  • Open Access
10 Citations
7,915 Views
13 Pages

27 April 2023

Optimizing fine motor coordination and cognitive abilities in middle childhood through new intervention programs remains one of the most essential orientations in motor development and skills proficiency. The present study aims to identify the effect...

  • Feature Paper
  • Article
  • Open Access
5 Citations
3,770 Views
13 Pages

Polyaromatic Carboxylate Ligands Based Zn(II) Coordination Polymers for Ultrasound-Assisted One-Pot Tandem Deacetalization–Knoevenagel Reactions

  • Anirban Karmakar,
  • Mohamed M. A. Soliman,
  • Elisabete C. B. A. Alegria,
  • Maria Fátima C. Guedes da Silva and
  • Armando J. L. Pombeiro

4 March 2022

Solvothermal reactions between the polyaromatic group containing carboxylic acid pro-ligands 5-{(pyren-1-ylmethyl)amino}isophthalic acid (H2L1) and 5-{(anthracen-9-ylmethyl)amino}isophthalic acid (H2L2) with Zn(NO3)2·6H2O led to the formation...

  • Article
  • Open Access
14 Citations
6,350 Views
13 Pages

Currently, sports activities require a high reaction speed, coordination, and balance, highlighting the relationship between proprioceptive control, visual control, and hand–eye coordination in youth. The present research assessed the proprioceptive...

  • Review
  • Open Access
4 Citations
3,619 Views
22 Pages

30 July 2025

Single-atom catalysts (SACs) have emerged as highly promising catalytic materials for the hydrogen evolution reaction (HER), attributed to their maximal atomic utilization efficiency and unique electronic configurations. Many structure parameters can...

  • Review
  • Open Access
3 Citations
3,111 Views
16 Pages

14 September 2023

Hydrogen peroxide (H2O2) is an important chemical with a diverse array of applications. However, the existing scenario of centralized high-concentration production is in contrast with the demand for low-concentration decentralized production. In this...

  • Article
  • Open Access
7 Citations
5,261 Views
13 Pages

30 October 2024

Objectives: Electronic sports (esports) have grown into a major competitive field in today’s digital landscape, attracting the interest of established companies and evolving into a fast-growing industry. Cognitive function, including reaction t...

  • Article
  • Open Access
7 Citations
5,156 Views
20 Pages

This work reports our first results in the area of the reactivity of coordinated chloroximes. The 1:2:2:2 Zn(NO3)2∙6H2O/Eu(NO3)3∙6H2O/ClpaoH/Et3N reaction mixture in MeOH, where ClpaoH is pyridine-2-chloroxime, resulted in complex [ZnCl2(L)] (1); L i...

  • Article
  • Open Access
903 Views
11 Pages

Evaluation of Reaction Time and Hand–Eye Coordination in Schoolchildren Using Wearable Sensor-Based Systems: A Study with Neural Trainer Devices

  • José Alfredo Sulla-Torres,
  • Nadia Yunorvi Chavez-Salas,
  • María Fernanda Valverde-Riveros,
  • Diego Alonso Iquira-Becerra,
  • Karina Rosas-Paredes and
  • Marco Antonio Cossio-Bolaños

17 November 2025

Reaction time and hand–eye coordination are critical neuromotor skills in school-aged children, influencing academic, cognitive, and motor development. The objective of this study was to evaluate schoolchildren’s performance on reaction t...

  • Article
  • Open Access
11 Citations
3,240 Views
10 Pages

N-Heterocyclic Carbene–Palladium Functionalized Coordination Polymer (Pd-NHC@Eu-BCI) as an Efficient Heterogeneous Catalyst in the Suzuki–Miyaura Coupling Reaction

  • Lixin You,
  • Rui Tan,
  • Xiaojuan Wang,
  • Jianhong Hao,
  • Shiyu Xie,
  • Gang Xiong,
  • Fu Ding,
  • Andrei S. Potapov and
  • Yaguang Sun

17 February 2023

In the present work, a new heterogeneous catalyst Pd-NHC@Eu-BCI was synthesized by introducing N-heterocyclic carbene–palladium active sites into a 2D coordination polymer [Eu(BCI)(NO3)2H2O]n (Eu-BCI) based on a 1,3-bis(carboxymethyl)imidazoliu...

  • Article
  • Open Access
3 Citations
7,569 Views
21 Pages

15 April 2025

This study investigates the efficacy of VR-based cognitive training using the game Beat Saber in enhancing cognitive functions in amateur e-athletes. Participants were divided into two groups, undergoing either 8-day or 28-day training. Significant i...

  • Article
  • Open Access
10 Citations
5,889 Views
19 Pages

Dinuclear Lanthanide (III) Coordination Polymers in a Domino Reaction

  • Edward Loukopoulos,
  • Kieran Griffiths,
  • Geoffrey R. Akien,
  • Nikolaos Kourkoumelis,
  • Alaa Abdul-Sada and
  • George E. Kostakis

6 November 2015

A systematic study was performed to further optimise the catalytic room-temperature synthesis of trans-4,5-diaminocyclopent-2-enones from 2-furaldehyde and primary or secondary amines under a non-inert atmosphere. For this purpose, a series of dinu...

  • Article
  • Open Access
8 Citations
4,660 Views
26 Pages

17 December 2018

Phosphoserine phosphatase (PSP), a member of the haloacid dehalogenase (HAD) superfamily that comprises the vast majority of phosphotransferases, is likely a steady-state regulator of the level of d-serine in the brain. The proposed catalytic cycle o...

  • Article
  • Open Access
3 Citations
8,193 Views
18 Pages

2 August 2013

We propose a protocol that provides a systematic definition of reaction coordinate and related free-energy profile as the function of temperature for the protein-folding simulation. First, using action-derived molecular dynamics (ADMD), we investiga...

  • Article
  • Open Access
7 Citations
2,466 Views
21 Pages

Synthesis and Characterization of New Triazole-Bispidinone Scaffolds and Their Metal Complexes for Catalytic Applications

  • Arianna Rossetti,
  • Alessandro Sacchetti,
  • Fiorella Meneghetti,
  • Greta Colombo Dugoni,
  • Matteo Mori and
  • Carlo Castellano

30 August 2023

Bispidines are a family of ligands that plays a pivotal role in various areas of coordination chemistry, with applications in medicinal chemistry, molecular catalysis, coordination polymers synthesis, and molecular magnetism. In the present work, tri...

  • Article
  • Open Access
3 Citations
2,011 Views
12 Pages

Carbonized Nickel Complex of Sodium Pectate as Catalyst for Proton-Exchange Membrane Fuel Cells

  • Kirill V. Kholin,
  • Aigul F. Sabirova,
  • Danis M. Kadirov,
  • Ayrat R. Khamatgalimov,
  • Mikhail N. Khrizanforov,
  • Irek R. Nizameev,
  • Mikhail V. Morozov,
  • Radis R. Gainullin,
  • Timur P. Sultanov and
  • Marsil K. Kadirov
  • + 2 authors

Sodium pectate derivatives with 25% replacement of sodium ions with nickel ions were obtained by carbonization to temperatures of 280, 550, and 800 °C, under special protocols in an inert atmosphere by carbonization to temperatures of 280, 550, a...

  • Article
  • Open Access
1 Citations
1,251 Views
17 Pages

Oxygen Reduction by Amide-Ligated Cobalt Complexes: Effect of Hydrogen Bond Acceptor

  • Zahra Aghaei,
  • Adedamola A. Opalade,
  • Victor W. Day and
  • Timothy A. Jackson

5 August 2025

The ability of earth-abundant metals to serve as catalysts for the oxygen reduction reaction is of increasing importance given the prominence of this reaction in several emerging technologies. It is now recognized that both the primary and secondary...

  • Article
  • Open Access
1,245 Views
53 Pages

Chemical Bonding in Three-Membered Ring Systems

  • Nina Strasser and
  • Alexander F. Sax

30 January 2025

The formation of the four 3-ring systems c-(CH2)3−k(SiH2)k (k=0: cyclopropane, k=1: silirane, k=2: disilirane, k=3: cyclotrisilane) by addition of methylene and silylene to the double bond in ethene, disilene, and silaethene, as well as the eli...

  • Review
  • Open Access
16 Citations
4,572 Views
15 Pages

19 October 2021

Cyclopentadienyl (Cp)-coordinated cationic Si(II) (1) and Ge(II) compounds (2) are a new class of catalysts for various transformations in organosilicon chemistry. This review demonstrates that these compounds effectively catalyze technically importa...

  • Article
  • Open Access
8 Citations
3,706 Views
27 Pages

We utilize the travelling-wave Ansatz to obtain novel analytical solutions to the linear diffusion–reaction equation. The reaction term is a function of time and space simultaneously, firstly in a Lorentzian form and secondly in a cosine travel...

  • Feature Paper
  • Review
  • Open Access
25 Citations
13,122 Views
51 Pages

Radical Reactions in Organic Synthesis: Exploring in-, on-, and with-Water Methods

  • Chryssostomos Chatgilialoglu,
  • Sebastian Barata-Vallejo and
  • Thanasis Gimisis

23 January 2024

Radical reactions in water or aqueous media are important for organic synthesis, realizing high-yielding processes under non-toxic and environmentally friendly conditions. This overview includes (i) a general introduction to organic chemistry in wate...

  • Article
  • Open Access
2,711 Views
12 Pages

3 September 2020

We use a coordination-based kinetics model to look at the kinetics of the turnover frequency (TOF) for the oxygen reduction reaction (ORR) for platinum nanoclusters. Clusters of octahedral, cuboctahedral, cubic, and icosahedral shape and size demonst...

  • Article
  • Open Access
4 Citations
3,738 Views
17 Pages

28 May 2024

The aim of this study was to evaluate the impact of implementing a basketball-specific exercise program using Fitlight technology on the coordinative abilities (reactive coordination, reactive reaction time, and reactive movement combination capacity...

  • Article
  • Open Access
2 Citations
2,594 Views
20 Pages

A Single Biaryl Monophosphine Ligand Motif—The Multiverse of Coordination Modes

  • Barbara Miroslaw,
  • Izabela Dybala,
  • Radomir Jasiński and
  • Oleg M. Demchuk

11 October 2023

Biaryl monophosphines are important precursors to active catalysts of palladium-mediated cross-coupling reactions. The efficiency of the phosphine-based transition metal complex catalyst has its origin in the electronic structure of the complex used...

  • Review
  • Open Access
138 Citations
15,730 Views
38 Pages

17 January 2017

Controlling the formation of coordination bonds is pivotal to the development of a plethora of functional metal-organic materials, ranging from coordination polymers, metal-organic frameworks (MOFs) to metallodrugs. The interest in and commercializat...

  • Article
  • Open Access
11 Citations
5,235 Views
9 Pages

The Role of Motor Imagery in Predicting Motor Skills in Young Male Soccer Players

  • Dariusz Zapała,
  • Emilia Zabielska-Mendyk,
  • Andrzej Cudo,
  • Marta Jaśkiewicz,
  • Marcin Kwiatkowski and
  • Agnieszka Kwiatkowska

The study aimed to find out whether the imagery ability within the two subcomponents of motor imagery (visual and kinesthetic) allows predicting the results in simple response time task and eye–hand coordination task in a group of young male soccer p...

  • Article
  • Open Access
11 Citations
3,036 Views
15 Pages

Pyrene Carboxylate Ligand Based Coordination Polymers for Microwave-Assisted Solvent-Free Cyanosilylation of Aldehydes

  • Anirban Karmakar,
  • Anup Paul,
  • Elia Pantanetti Sabatini,
  • M. Fátima C. Guedes da Silva and
  • Armando J. L. Pombeiro

19 February 2021

The new coordination polymers (CPs) [Zn(μ-1κO1:1κO2-L)(H2O)2]n·n(H2O) (1) and [Cd(μ4-1κO1O2:2κN:3,4κO3-L)(H2O)]n·n(H2O) (2) are reported, being prepared by the solvothermal reactions of 5-{(pyren-4-ylmethyl)amino}isophthalic acid (H2L) with Zn(NO3)2....

  • Article
  • Open Access
1,691 Views
21 Pages

Technology-Assisted Neuromotor Training for Improving Visuomotor Reaction Performance, Change-of-Direction Quickness, and Bilateral Task Execution in Junior Handball Players

  • Mircea Boncuț,
  • Nicola Mancini,
  • Angel-Alex Hăisan,
  • Delia Boncuț,
  • Emilia Florina Grosu,
  • Cornelia Popovici,
  • Carlos Hervás-Gómez,
  • Cristina Maria Man,
  • Siria Mancini and
  • Vlad Teodor Grosu
  • + 2 authors

Background: Reaction time and coordination are key performance components in team sports such as handball, particularly during the developmental years. Integrating visual and cognitive stimuli through smart technologies has been shown to facilitate m...

  • Article
  • Open Access
16 Citations
5,936 Views
11 Pages

Characteristics of Cognitive Abilities among Youths Practicing Football

  • Wojciech Paśko,
  • Maciej Śliż,
  • Mariusz Paszkowski,
  • Janusz Zieliński,
  • Klementyna Polak,
  • Maciej Huzarski and
  • Krzysztof Przednowek

The aim of the study was to assess selected cognitive abilities depending on age, anthropometric parametres, physical fitness and technical skills in the group of young players training football. The study covered a group of 258 young players practic...

  • Article
  • Open Access
482 Views
13 Pages

Physical Fitness Performance and Psychomotor Abilities in Trained Young Female Handball Players

  • Maciej Śliż,
  • Francisco Martins,
  • Cíntia França,
  • Élvio Rúbio Gouveia and
  • Krzysztof Przednowek

15 December 2025

Physical fitness and psychomotor performance can play a crucial role in decision-making ability, reaction time, and movement time among female handball players at different age levels. Our study aimed to compare the physical fitness performance and p...

  • Article
  • Open Access
13 Citations
5,421 Views
16 Pages

12 April 2018

In this study, two simple Schiff base copper complexes [Cu(H2O)2(HL)]·2H2O (Complex 1) (H3L = 2-OH-4-(OH)-C6H2CH=NCH2CO2H) and [Cu(py)2(HL)] (Complex 2) (Py = pyridine) were initially achieved and authenticated by single-crystal X-ray structure analy...

  • Article
  • Open Access
15 Citations
3,347 Views
14 Pages

Electrocatalytic Behavior of an Amide Functionalized Mn(II) Coordination Polymer on ORR, OER and HER

  • Anup Paul,
  • Kristina Radinović,
  • Susanta Hazra,
  • Dušan Mladenović,
  • Biljana Šljukić,
  • Rais Ahmad Khan,
  • Maria Fátima C. Guedes da Silva and
  • Armando J. L. Pombeiro

28 October 2022

The new 3D coordination polymer (CP) [Mn(L)(HCOO)]n (Mn-CP) [L = 4-(pyridin-4-ylcarbamoyl)benzoate] was synthesised via a hydrothermal reaction using the pyridyl amide functionalized benzoic acid HL. It was characterized by elemental, FT-IR spectrosc...

  • Article
  • Open Access
3 Citations
2,752 Views
12 Pages

Platinum–Dysprosium Alloys as Oxygen Electrodes in Alkaline Media: An Experimental and Theoretical Study

  • Jadranka Milikić,
  • Nikola Nikolić,
  • Diogo M. F. Santos,
  • Daniele Macciò,
  • Adriana Saccone,
  • Mabkhoot Alsaiari,
  • Mohammed Jalalah,
  • M. Faisal,
  • Farid A. Harraz and
  • Biljana Šljukić
  • + 3 authors

6 July 2022

Platinum–dysprosium (Pt–Dy) alloys prepared by the arc melting technique are assessed as potential electrodes for the oxygen reduction reaction (ORR) using voltammetry and chronoamperometry in alkaline media. A relatively small change (10...

  • Article
  • Open Access
6 Citations
3,031 Views
11 Pages

Electrocatalytic Activity of Reduced Graphene Oxide Supported Cobalt Cinnamate for Oxygen Evolution Reaction

  • Myung Jun Lee,
  • Junyeop Kim,
  • Jaeun Kang,
  • Hyewon Shin,
  • Junghwan Do and
  • Seong Jung Kwon

16 August 2021

The stability of porous coordination polymers during an electrochemical reaction could be improved by introducing supporter materials. An I3O0-type inorganic hybrid electrocatalyst, cobalt cinnamate, supported on reduced graphene oxide (rGO) was succ...

  • Article
  • Open Access
16 Citations
14,350 Views
14 Pages

Reaction Time Improvements by Neural Bistability

  • Henk Koppelaar,
  • Parastou Kordestani Moghadam,
  • Kamruzzaman Khan,
  • Sareh Kouhkani,
  • Gijs Segers and
  • Martin van Warmerdam

18 March 2019

The often reported reduction of Reaction Time (RT) by Vision Training) is successfully replicated by 81 athletes across sports. This enabled us to achieve a mean reduction of RTs for athletes eye-hand coordination of more than 10%, with high statisti...

  • Article
  • Open Access
2 Citations
4,912 Views
8 Pages

2 January 2018

A pyridine and thioether co-supported triazole ligand L (L = 2-((4-(3-(cyclopentylthio)propyl)-1H-1,2,3-triazol-1-yl)methyl)pyridine) has been synthesized using the CuAAC click reaction. This ligand supports the formation of a thermally stable, one-d...

  • Article
  • Open Access
1,611 Views
11 Pages

22 August 2024

A pyridine–tricarboxylic acid, 4-(6-carboxy-pyridin-3-yl)-isophthalic acid (H3cpia), was used as a versatile building block to synthesize three novel coordination polymers under hydrothermal conditions and formulated as [Mn8(μ3-Hcpia)2 (μ...

  • Review
  • Open Access
67 Citations
16,091 Views
28 Pages

Recent Advances in Cyanamide Chemistry: Synthesis and Applications

  • M. R. Ranga Prabhath,
  • Luke Williams,
  • Shreesha V. Bhat and
  • Pallavi Sharma

The application of alkyl and aryl substituted cyanamides in synthetic chemistry has diversified multi-fold in recent years. In this review, we discuss recent advances (since 2012) in the chemistry of cyanamides and detail their application in cycload...

  • Review
  • Open Access
64 Citations
13,167 Views
15 Pages

11 May 2021

The oxygen evolution reaction (OER) is the efficiency-determining half-reaction process of high-demand, electricity-driven water splitting due to its sluggish four-electron transfer reaction. Tremendous effects on developing OER catalysts with high a...

  • Feature Paper
  • Review
  • Open Access
10 Citations
3,441 Views
21 Pages

25 February 2022

Several sterically protected, low-coordinate organophosphorus compounds with P=P, P=C, and C≡P bond are described in this study. Molecules such as diphosphenes, phosphaalkenes, 1-phosphaallenes, 1,3-diphosphaallenes, 3,4-diphosphinidenecyclobut...

  • Article
  • Open Access
829 Views
24 Pages

Experimental and Theoretical Studies on the Kinetics and Mechanism of the C3H8/C3D8 + Cl Reaction

  • Łukasz Fojcik,
  • Grzegorz Mierzwa,
  • Zdzisław Latajka and
  • Dariusz Stanisław Sarzyński

14 November 2025

An experimental and theoretical investigation of the reaction between chlorine atoms and propane/deuterated propane (C3H8/C3D8) was performed. The experimental work aimed to determine absolute and site-specific rate constants for hydrogen and deuteri...

  • Article
  • Open Access
6 Citations
3,896 Views
13 Pages

17 August 2021

Using carbon dioxide-based poly(propylene ether carbonate) diol (PPCD), isophorone diisocyanate (IPDI), dimethylolbutyric acid (DMBA), ferric chloride (FeCl3), and ethylene glycol (EG) as the main raw materials, a novel thermoplastic polyurethane (TP...

  • Article
  • Open Access
2 Citations
1,613 Views
17 Pages

Carrier-Free Hybrid Nanoparticles for Enhanced Photodynamic Therapy in Oral Carcinoma via Reversal of Hypoxia and Oxidative Resistance

  • Xiao Li,
  • Zhiyin Li,
  • Yue Su,
  • Jia Zhou,
  • Yuxiang Li,
  • Qianqian Zhao,
  • Xia Yang,
  • Leilei Shi and
  • Lingyue Shen

In the present work, we pioneered a coordinated self-assembly approach aimed at fabricating carrier-free hybrid nanoparticles to address the inherent challenges of the anaerobic microenvironment and the oxidative resistance induced by reductive gluta...

  • Article
  • Open Access
16 Citations
5,083 Views
16 Pages

Cyanosilylation of Aldehydes Catalyzed by Ag(I)- and Cu(II)-Arylhydrazone Coordination Polymers in Conventional and in Ionic Liquid Media

  • Gonçalo A. O. Tiago,
  • Kamran T. Mahmudov,
  • M. Fátima C. Guedes da Silva,
  • Ana P. C. Ribeiro,
  • Luís C. Branco,
  • Fedor I. Zubkov and
  • Armando J. L. Pombeiro

20 March 2019

The novel Ag(I) and Cu(II) coordination polymers [Ag(μ3-1κO;2:3κO′;4κN-HL)]n∙n/2H2O (1) and [Cu(en)2(μ-1κO;2κN-L)]n∙nH2O (2) [HL = 2-(2-(1-cyano-2-oxopropylidene)hydrazinyl)benzene sulfonate] were synt...

  • Review
  • Open Access
28 Citations
6,001 Views
28 Pages

Asymmetric Coordination Environment Engineering of Atomic Catalysts for CO2 Reduction

  • Xianghua Hou,
  • Junyang Ding,
  • Wenxian Liu,
  • Shusheng Zhang,
  • Jun Luo and
  • Xijun Liu

11 January 2023

Single-atom catalysts (SACs) have emerged as well-known catalysts in renewable energy storage and conversion systems. Several supports have been developed for stabilizing single-atom catalytic sites, e.g., organic-, metal-, and carbonaceous matrices....

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