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10,599 Results Found

  • Article
  • Open Access
21 Citations
21,297 Views
14 Pages

The Effects of Caffeinated “Energy Shots” on Time Trial Performance

  • Matthew Mark Schubert,
  • Todd Anthony Astorino and
  • John Leal Azevedo Jr.

6 June 2013

An emerging trend in sports nutrition is the consumption of energy drinks and “energy shots”. Energy shots may prove to be a viable pre-competition supplement for runners. Six male runners (mean ± SD age and VO2max: 22.5 ± 1.8 years and 69.1 ± 5.7...

  • Article
  • Open Access
21 Citations
6,594 Views
18 Pages

Pilot Clinical Trial of Time-Restricted Eating in Patients with Metabolic Syndrome

  • Iwona Świątkiewicz,
  • Celestyna Mila-Kierzenkowska,
  • Alina Woźniak,
  • Karolina Szewczyk-Golec,
  • Jarosław Nuszkiewicz,
  • Joanna Wróblewska,
  • Paweł Rajewski,
  • Simone J. P. M. Eussen,
  • Kristine Færch and
  • Pam R. Taub
  • + 2 authors

24 January 2021

Metabolic syndrome (MetS) and erratic eating patterns are associated with circadian rhythm disruption which contributes to an increased cardiometabolic risks. Restricting eating period (time-restricted eating, TRE) can restore robust circadian rhythm...

  • Article
  • Open Access
4 Citations
4,993 Views
10 Pages

24 July 2021

Background: Transcranial direct current stimulation (tDCS) is a neuromodulatory technique that delivers low levels of a constant current via scalp electrodes to specifically targeted areas of the brain. The effects of tDCS on whole-body exercise perf...

  • Article
  • Open Access
7 Citations
9,944 Views
13 Pages

One-Week High-Dose β-Alanine Loading Improves World Tour Cyclists’ Time-Trial Performance

  • Vicente Ávila-Gandía,
  • Antonio Torregrosa-García,
  • Silvia Pérez-Piñero,
  • Raquel Ortolano,
  • María Salud Abellán-Ruiz and
  • F. Javier López-Román

25 July 2021

Supplementation with β-alanine is becoming a common practice in high-performance athletes. The purpose of the present study was to investigate the effects of a one-week high-dose β-alanine loading phase employing a sustained-release powder on preserv...

  • Article
  • Open Access
18 Citations
8,712 Views
9 Pages

Acute Caffeinated Coffee Consumption Does not Improve Time Trial Performance in an 800-m Run: A Randomized, Double-Blind, Crossover, Placebo-Controlled Study

  • Alexandre C. Marques,
  • Alison A. Jesus,
  • Bruna M. Giglio,
  • Ana C. Marini,
  • Patrícia C. B. Lobo,
  • João F. Mota and
  • Gustavo D. Pimentel

23 May 2018

Introduction: Studies evaluating caffeinated coffee (CAF) can reveal ergogenic effects; however, studies on the effects of caffeinated coffee on running are scarce and controversial. Aim: To investigate the effects of CAF consumption compared to deca...

  • Article
  • Open Access
10 Citations
5,057 Views
17 Pages

29 November 2021

The current study compared mouth swills containing carbohydrate (CHO), menthol (MEN) or a combination (BOTH) on 40 km cycling time trial (TT) performance in the heat (32 °C, 40% humidity, 1000 W radiant load) and investigates associated physiolog...

  • Article
  • Open Access
5 Citations
6,805 Views
14 Pages

3 December 2021

Following reports of bleeding upon Ginkgo intake, we assessed whether Ginkgo extract EGb 761® affects coagulation or platelet function or increases the risk of bleeding. In a double-blind, placebo-controlled trial, prothrombin time, activated par...

  • Article
  • Open Access
1 Citations
1,055 Views
13 Pages

Real-Time Unrepeated Long-Span Field Trial over Deployed 4-Core Fiber Cable Using Commercial 130-Gbaud PCS-16QAM 800 Gb/s OTN Transceivers

  • Jian Cui,
  • Chao Wu,
  • Zhuo Liu,
  • Yu Deng,
  • Bin Hao,
  • Leimin Zhang,
  • Ting Zhang,
  • Yuxiao Wang,
  • Bin Wu and
  • Ninglun Gu
  • + 14 authors

The space-division multiplexed (SDM) transmission technique based on uncoupled multi-core fibers (MCF) shows great implementation potential due to its huge transmission capacity and compatibility with existing transceivers. In this paper, we demonstr...

  • Article
  • Open Access
14 Citations
5,546 Views
17 Pages

Efficacy of Time-Restricted Eating and Behavioral Economic Intervention in Reducing Fasting Plasma Glucose, HbA1c, and Cardiometabolic Risk Factors in Patients with Impaired Fasting Glucose: A Randomized Controlled Trial

  • Unyaporn Suthutvoravut,
  • Thunyarat Anothaisintawee,
  • Suparee Boonmanunt,
  • Sarunporn Pramyothin,
  • Sukanya Siriyothin,
  • John Attia,
  • Gareth J. McKay,
  • Sirimon Reutrakul and
  • Ammarin Thakkinstian

30 September 2023

This randomized controlled trial is aimed at assessing the efficacy of combining time-restricted eating (TRE) with behavioral economic (BE) interventions and comparing it to TRE alone and to the usual care for reducing fasting plasma glucose (FPG), h...

  • Article
  • Open Access
2 Citations
2,325 Views
25 Pages

17 March 2025

Competing patterns are compound patterns that compete to be the first to occur a pattern-specific number of times, known as a stopping rule. In this paper, we study a higher-order Markovian dependent Bernoulli trials model with competing patterns. Th...

  • Brief Report
  • Open Access
7 Citations
2,959 Views
8 Pages

Trial Sponsorship and Time to Reporting for Phase 3 Randomized Cancer Clinical Trials

  • Timothy A. Lin,
  • Clifton David Fuller,
  • Vivek Verma,
  • Walker Mainwaring,
  • Andres F. Espinoza,
  • Austin B. Miller,
  • Amit Jethanandani,
  • Dario Pasalic,
  • Prajnan Das and
  • Ethan B. Ludmir
  • + 5 authors

16 September 2020

The pace of clinical trial data generation and publication is an area of interest within clinical oncology; however, little is known about the dynamics and covariates of time to reporting (TTR) of trial results. To assess these, ClinicalTrials.gov wa...

  • Article
  • Open Access
4 Citations
6,079 Views
19 Pages

Selection of Posture for Time-Trial Cycling Events

  • Alejandra P. Polanco,
  • Luis E. Muñoz,
  • Alberto Doria and
  • Daniel R. Suarez

19 September 2020

Cyclists usually define their posture according to performance and comfort requirements. However, when modifying their posture, cyclists experience a trade-off between these requirements. In this research, an optimization methodology is developed to...

  • Article
  • Open Access
31 Citations
8,967 Views
6 Pages

New Zealand blackcurrant (NZBC) extract increased 16.1 km cycling time trial performance. The aim of the present study was to examine the effect of NZBC extract on 2 × 4 km time trial performance. Ten male cyclists (age: 30 ± 12 years, body mass: 74...

  • Protocol
  • Open Access
4 Citations
4,313 Views
21 Pages

Companion: A Pilot Randomized Clinical Trial to Test an Integrated Two-Way Communication and Near-Real-Time Sensing System for Detecting and Modifying Daily Inactivity among Adults >60 Years—Design and Protocol

  • Diego Arguello,
  • Ethan Rogers,
  • Grant H. Denmark,
  • James Lena,
  • Troy Goodro,
  • Quinn Anderson-Song,
  • Gregory Cloutier,
  • Charles H. Hillman,
  • Arthur F. Kramer and
  • Dinesh John
  • + 1 author

16 February 2023

Supervised personal training is most effective in improving the health effects of exercise in older adults. Yet, low frequency (60 min, 1–3 sessions/week) of trainer contact limits influence on behavior change outside sessions. Strategies to ex...

  • Article
  • Open Access
873 Views
12 Pages

7 April 2025

Intra-individual movement variability has historically been discounted as evidence of poor motor control. However, evidence now suggests that it may play a functional role in skill performance and so this study aimed to establish whether this is the...

  • Article
  • Open Access
1,136 Views
14 Pages

First Real-Time 267.8 Tb/S 2 × 70.76 Km Integrated Communication and Sensing Field Trial over Deployed Seven-Core Fiber Cable Using 130 Gbaud PCS-64QAM 1.2 Tb/S OTN Transponders

  • Jian Cui,
  • Leimin Zhang,
  • Yu Deng,
  • Zhuo Liu,
  • Chao Wu,
  • Bin Hao,
  • Ting Zhang,
  • Yuxiao Wang,
  • Bin Wu and
  • Ninglun Gu
  • + 8 authors

Ultra-high-speed integrated communication and sensing (ICS) transmission techniques are highly desired for next-generation highly reliable optical transport networks (OTNs). The inherent multiple-channel advantage of uncoupled multi-core fibers (MCFs...

  • Article
  • Open Access
7 Citations
3,067 Views
15 Pages

Analysis of a Skating Time-Trial Competition and Associated Performance-Determinants in Cross-Country Skiers

  • Lei Shang,
  • Øyvind Sandbakk,
  • Ruiying Shi,
  • Xiaoping Chen and
  • Rune Kjøsen Talsnes

Purpose: To examine the contributions of time in different terrains and sub-technique distribution to overall time-trial performance, as well as the relationships of laboratory and field-based performance determinants in cross-country skiers. Methods...

  • Article
  • Open Access
1 Citations
2,486 Views
22 Pages

17 December 2024

Aerodynamics is a key factor in time-trial cycling. Over the years, various aspects have been investigated, including positioning, clothing, bicycle design, and helmet shape. The present study focuses on the development of a methodology for the aerod...

  • Article
  • Open Access
7 Citations
8,800 Views
11 Pages

This study investigated the real-time progression of heat strain in mountain hikers during time trials (TT). Participants (n = 12; 7M/5F; age 21.6 ± 2.47) attempted to climb Tempe Butte (~1.1 mi) four times in HOT and MOD trials (wet bulb glob...

  • Article
  • Open Access
9 Citations
6,948 Views
9 Pages

Effect of Phenol Application Time in the Treatment of Onychocryptosis: A Randomized Double-Blind Clinical Trial

  • Juan Manuel Muriel-Sánchez,
  • Manuel Coheña-Jiménez and
  • Pedro Montaño-Jiménez

Background: In the treatment of Onychocryptosis, chemical matricectomy with 88% phenol solution is one of the most common surgical procedures due to a recurrence rate of less than 5%, but it may produce a delay in healing time. The objective was to c...

  • Review
  • Open Access
15 Citations
8,958 Views
18 Pages

8 September 2020

Much research has been done in sports nutrition in recent years as the demand for performance-enhancing substances increases. Higher intake of nitrates from the diet can increase the bioavailability of nitric oxide (NO) via the nitrate–nitrite&...

  • Article
  • Open Access
24 Citations
8,689 Views
14 Pages

Mouth Rinsing with Maltodextrin Solutions Fails to Improve Time Trial Endurance Cycling Performance in Recreational Athletes

  • Tuğba Nilay Kulaksız,
  • Şükran Nazan Koşar,
  • Suleyman Bulut,
  • Yasemin Güzel,
  • Marcus Elisabeth Theodorus Willems,
  • Tahir Hazir and
  • Hüseyin Hüsrev Turnagöl

9 May 2016

The carbohydrate (CHO) concentration of a mouth rinsing solution might influence the CHO sensing receptors in the mouth, with consequent activation of brain regions involved in reward, motivation and regulation of motor activity. The purpose of the p...

  • Article
  • Open Access
21 Citations
7,489 Views
11 Pages

Carbohydrate Mouth Rinse Fails to Improve Four-Kilometer Cycling Time Trial Performance

  • Flávio O. Pires,
  • Cayque Brietzke,
  • Fabiano A. Pinheiro,
  • Katherine Veras,
  • Eugênia C. T. De Mattos,
  • André L. F. Rodacki and
  • Carlos Ugrinowitsch

12 March 2018

We investigated if a carbohydrate (CHO) mouth rinse may attenuate global fatigue and improve 4-km cycling time trial (TT4km) performance. After a preliminary session, cyclists (n = 9) performed a TT4km after a CHO or placebo (PLA) mouth rinse. Mean p...

  • Article
  • Open Access
1 Citations
3,997 Views
11 Pages

Impact of Reducing Sitting Time in Women with Fibromyalgia and Obesity: A Randomized Controlled Trial

  • Beatriz Rodríguez-Roca,
  • Fernando Urcola-Pardo,
  • Ana Anguas-Gracia,
  • Ana Belén Subirón-Valera,
  • Ángel Gasch-Gallén,
  • Isabel Antón-Solanas and
  • Ana M. Gascón-Catalán

Background: Sitting time has negative effects on health, increasing the risk of obesity, osteoporosis, diabetes, and cancer. Thus, primary health care education interventions aimed to reduce sitting time and sedentary behavior could have beneficial e...

  • Article
  • Open Access
11 Citations
4,947 Views
12 Pages

Effect of Thirst-Driven Fluid Intake on 1 H Cycling Time-Trial Performance in Trained Endurance Athletes

  • Maxime Perreault-Briere,
  • Jeff Beliveau,
  • David Jeker,
  • Thomas A. Deshayes,
  • Ana Duran and
  • Eric D. B. Goulet

14 October 2019

A meta-analysis demonstrated that programmed fluid intake (PFI) aimed at fully replacing sweat losses during a 1 h high-intensity cycling exercise impairs performance compared with no fluid intake (NFI). It was reported that thirst-driven fluid intak...

  • Article
  • Open Access
24 Citations
10,808 Views
10 Pages

Carbohydrate Mouth Rinsing Enhances High Intensity Time Trial Performance Following Prolonged Cycling

  • Nicholas D. Luden,
  • Michael J. Saunders,
  • Andrew C. D’Lugos,
  • Mark W. Pataky,
  • Daniel A. Baur,
  • Caitlin B. Vining and
  • Adam B. Schroer

20 September 2016

There is good evidence that mouth rinsing with carbohydrate (CHO) solutions can enhance endurance performance (≥30 min). The impact of a CHO mouth rinse on sprint performance has been less consistent, suggesting that CHO may confer benefits in condit...

  • Feature Paper
  • Article
  • Open Access
10 Citations
14,289 Views
12 Pages

Purpose: To determine the impact of interval training frequency in elite endurance athletes. It was hypothesized that two longer sessions would elicit greater performance improvements and physiological adaptation than four shorter sessions at the sam...

  • Article
  • Open Access
1 Citations
3,043 Views
19 Pages

This study aimed to assess the trend in oncology trial commencements registered on ClinicalTrials.gov and to evaluate the contributing factors by comparing the trends in the pre- and post-COVID-19 pandemic era. The ClinicalTrials.gov database was sea...

  • Perspective
  • Open Access
72 Citations
6,461 Views
11 Pages

Time to Next Treatment as a Meaningful Endpoint for Trials of Primary Cutaneous Lymphoma

  • Belinda A. Campbell,
  • Julia J. Scarisbrick,
  • Youn H. Kim,
  • Ryan A. Wilcox,
  • Christopher McCormack and
  • H. Miles Prince

17 August 2020

Time to next treatment (TTNT) is an emerging endpoint in clinical studies of primary cutaneous T-cell lymphomas (CTCL), with utility as a surrogate marker for the “duration of clinical benefit”. TTNT provides a highly clinically meaningfu...

  • Article
  • Open Access
21 Citations
4,550 Views
21 Pages

Fatigue and Arousal Modulations Revealed by Saccade and Pupil Dynamics

  • Jui-Tai Chen,
  • Ying-Chun Kuo,
  • Tzu-Yu Hsu and
  • Chin-An Wang

Saccadic eye movements are directed to the objects of interests and enable high-resolution visual images in the exploration of the visual world. There is a trial-to-trial variation in saccade dynamics even in a simple task, possibly attributed to aro...

  • Systematic Review
  • Open Access
1 Citations
3,456 Views
13 Pages

3 December 2025

Background/Objectives: Caffeine is a well-established ergogenic aid for endurance performance. However, the optimal intake strategy, specifically the administration method and dosage, remains uncertain. This systematic review and network meta-analysi...

  • Article
  • Open Access
11 Citations
1,469 Views
7 Pages

Real-Time Quantitative Assessment of Accuracy and Precision of Blood Volume Derived from DCE-MRI in Individual Patients during a Clinical Trial

  • Madhava P. Aryal,
  • Choonik Lee,
  • Peter G. Hawkins,
  • Christina Chapman,
  • Avraham Eisbruch,
  • Michelle Mierzwa and
  • Yue Cao

Accuracy and precision of quantitative imaging (QI) metrics should be assessed in real time in each patient during a clinical trial to support QI-based decision-making. We developed a framework for real-time quantitative assessment of QI metrics and...

  • Article
  • Open Access
5 Citations
6,292 Views
13 Pages

A Menthol-Enhanced “Cooling” Energy Gel Does Not Influence Laboratory Time Trial Performance in Trained Runners

  • Roxanne M. Vogel,
  • Nicole Varone,
  • Cayla Clark,
  • Kyndall Ramirez,
  • Megan L. R. Ross,
  • Christian Swann and
  • Christopher J. Stevens

29 July 2023

l-menthol (menthol) is an organic compound derived from peppermint which imparts a refreshing mint flavor and aroma to oral hygiene products, chewing gum, and topical analgesics. Menthol has been identified as a non-thermal sensory cooling strategy f...

  • Article
  • Open Access
8 Citations
4,489 Views
7 Pages

5 September 2018

The use of mobile power measuring devices has become widespread within cycling, with a number of manufacturers now offering power measuring pedals. This study aimed to investigate the validity of PowerTap P1 pedals by comparing them with the previous...

  • Feature Paper
  • Article
  • Open Access
17 Citations
5,309 Views
16 Pages

Influence of Equimolar Doses of Beetroot Juice and Sodium Nitrate on Time Trial Performance in Handcycling

  • Joelle Leonie Flueck,
  • Alessandro Gallo,
  • Nynke Moelijker,
  • Nikolay Bogdanov,
  • Anna Bogdanova and
  • Claudio Perret

18 July 2019

This study aimed to investigate the influence of a single dose of either beetroot juice (BR) or sodium nitrate (NIT) on performance in a 10 km handcycling time trial (TT) in able-bodied individuals and paracyclists. In total, 14 able-bodied individua...

  • Article
  • Open Access
9 Citations
4,328 Views
11 Pages

Comparison between Dry-Land and Swimming Priming on 50 m Crawl Performance in Well-Trained Adolescent Swimmers

  • Nikolaos Zaras,
  • Andreas Apostolidis,
  • Angeliki Kavvoura and
  • Marios Hadjicharalambous

31 March 2022

The purpose of the study was to investigate the effect of dry-land priming (DLP) versus swimming priming (SP) on the 50 m crawl performance of well-trained adolescent swimmers. Thirteen adolescent swimmers were randomly assigned to perform either a D...

  • Article
  • Open Access
6 Citations
3,051 Views
12 Pages

12 July 2023

Equilibration with an extender is necessary to allow cryopreservation of bovine sperm. The aim of trial 1 was to assess the effect of 24 h versus 4 h equilibration time with three different extenders on sperm quality and to select the preferred exten...

  • Review
  • Open Access
5 Citations
2,470 Views
16 Pages

Real-World-Time Data and RCT Synergy: Advancing Personalized Medicine and Sarcoma Care through Digital Innovation

  • Philip Heesen,
  • Georg Schelling,
  • Mirko Birbaumer,
  • Ruben Jäger,
  • Beata Bode,
  • Gabriela Studer and
  • Bruno Fuchs

11 July 2024

This manuscript examines the synergistic potential of prospective real-world/time data/evidence (RWTD/E) and randomized controlled trials (RCTs) to enrich healthcare research and operational insights, with a particular focus on its impact within the...

  • Article
  • Open Access
5 Citations
3,835 Views
17 Pages

Environmental heat stress poses significant physiological challenge and impairs exercise performance. We investigated the impact of wrist percooling on running performance and physiological and perceptual responses in the heat. In a counterbalanced d...

  • Article
  • Open Access
5 Citations
2,745 Views
18 Pages

Self-Reporting Technique-Based Clinical-Trial Service Platform for Real-Time Arrhythmia Detection

  • Heejin Kim,
  • Ki Young Huh,
  • Meihua Piao,
  • Hyeongju Ryu,
  • Wooseok Yang,
  • SeungHwan Lee and
  • Kyung Hwan Kim

30 April 2022

The analysis of the electrocardiogram (ECG) is critical for the diagnosis of arrhythmias. Recent advances in information and communications technology (ICT) have led to the development of wearable ECG devices and arrhythmia-detection algorithms. This...

  • Article
  • Open Access
110 Citations
28,366 Views
13 Pages

Using Sit-Stand Workstations to Decrease Sedentary Time in Office Workers: A Randomized Crossover Trial

  • Nirjhar Dutta,
  • Gabriel A. Koepp,
  • Steven D. Stovitz,
  • James A. Levine and
  • Mark A. Pereira

Objective: This study was conducted to determine whether installation of sit-stand desks (SSDs) could lead to decreased sitting time during the workday among sedentary office workers. Methods: A randomized cross-over trial was conducted from January...

  • Article
  • Open Access
10 Citations
6,818 Views
10 Pages

22 January 2024

This study aimed to analyze the placebo effect associated with caffeine ingestion on running performance. Methods: Thirteen recreationally trained males in long-distance running (age: 38.5 ± 11.9 years, 11.0 ± 8.8 years of running exper...

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

23 March 2024

Relative to carbohydrate (CHO) alone, exogenous ketones followed by CHO supplementation during recovery from glycogen-lowering exercise have been shown to increase muscle glycogen resynthesis. However, whether this strategy improves subsequent exerci...

  • Article
  • Open Access
4,276 Views
20 Pages

Betaine Supplementation Improves 60 km Cycling Time Trial Performance and One-Carbon Metabolism in Cyclists During Recovery

  • David C. Nieman,
  • Camila A. Sakaguchi,
  • James C. Williams,
  • Jackie Lawson and
  • Kevin C. Lambirth

26 August 2025

Background/Objectives: This study examined the effects of 2 weeks of betaine versus placebo supplementation (3 g/d) on 60 km cycling performance, gut permeability, and shifts in plasma metabolites. Methods: Participants included 21 male and female no...

  • Article
  • Open Access
24 Citations
17,034 Views
11 Pages

25 October 2019

Caffeine is a well-established ergogenic aid, although research to date has predominantly focused on anhydrous caffeine, and in men. The primary aim of the present study was to investigate the effect of coffee ingestion on 5 km cycling time trial per...

  • Review
  • Open Access
32 Citations
23,213 Views
19 Pages

20 May 2020

Endurance athletes participating in sporting events may be required to complete multiple training sessions a day or on successive days with a limited recovery time. Nutritional interventions that enhance the restoration of endogenous fuel stores (e.g...

  • Article
  • Open Access
24 Citations
3,936 Views
8 Pages

1 June 2019

We study a fifth order time-fractional KdV equation (FKdV) under meaning of the conformal fractional derivative. By trial equation method based on symmetry, we construct the abundant exact traveling wave solutions to the FKdV equation. These solution...

  • Article
  • Open Access
5 Citations
2,130 Views
14 Pages

A Study of Treatment of Industrial Acidic Wastewaters with Stainless Steel Slags Using Pilot Trials

  • Mattia De Colle,
  • Rahul Puthucode,
  • Andrey Karasev and
  • Pär G. Jönsson

25 August 2021

Different stainless steel slags have been successfully employed in previous experiments, for the treatment of industrial acidic wastewaters. Although, before this technology can be implemented on an industrial scale, upscaled pilot experiments need t...

  • Article
  • Open Access
12 Citations
719 Views
13 Pages

Background: Globally, healthcare has shouldered much of the socioeconomic brunt of the COVID-19 pandemic leading to numerous clinical trials suspended or discontinued. Objective: To estimate the COVID-19 impact on the number of clinical trials worldw...

  • Article
  • Open Access
23 Citations
18,027 Views
10 Pages

Energy Drinks and Their Acute Effects on Heart Rhythm and Electrocardiographic Time Intervals in Healthy Children and Teenagers: A Randomized Trial

  • Guido Mandilaras,
  • Pengzhu Li,
  • Robert Dalla-Pozza,
  • Nikolaus Alexander Haas and
  • Felix Sebastian Oberhoffer

31 January 2022

Beyond their effect on blood pressure, the effect of energy drinks on heart rate in children and teenagers has not been evaluated until now. Thus, this study aimed to investigate the acute cardiovascular effects of energy drinks in healthy children a...

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