Moreover, the system of the four published items discourages long-term projects with relatively high research risk in the sciences as well, since researchers are reluctant to engage in projects or experiments that may not be successful and may not lead to a publication. Since most of the ground-breaking research in the sciences takes place with precisely such risky and imaginative projects, the type of research activity that is encouraged by the REF structure is quite conservative. Also, in terms of the impact of the examined research, in the history of the sciences and the humanities it is not unusual to take some time until the full impact of a discovery is made. The present system has a vista of only four or five years. [ citation needed] Below are some common queries about handling reference error in Excel. How to resolve #REF! on a protected sheet? React refs are a powerful feature that allows you to access and manipulate the DOM directly. However, they can also lead to various common mistakes if not used carefully. Overusing refs The following offences should usually result in a warning; repeated or blatant offences should result in a caution or sending-off:

that the condition of the field of play or its surrounds or that the weather conditions are such as to allow or not to allow a match to take place A match is played by two teams, each with a maximum of eleven players; one must be the goalkeeper. A match may not start or continue if either team has fewer than seven players. Universities UK response to HEFCE consultation on the Research Excellence Framework (REF)". Universities UK. 13 December 2009. Archived from the original ( .doc) on 16 July 2011.In the code snippet above, we use React.createRef() to create a reference that we named buttonRef. We then assign the reference to the button element. Differences between useRef and createRef

has the power to show yellow or red cards and, where competition rules permit, temporarily dismiss a player, from entering the field of play at the start of the match until after the match has ended, including during the half-time interval, extra time and penalties (penalty shoot-out). The match is drawing to an end. The Aussie Places are to put the ball into a scrum. Will Karamba puts the ball into the scrum. The scrum collapses though you see no infringement. The final siren goes. You see that time is up.All players have a right to their position on the field of play; being in the way of an opponent is not the same as moving into the way of an opponent. To avoid potential errors, it’s crucial to initialize refs properly by creating them using React.createRef() for class components or useRef() for functional components and assigning them to the intended targets. If you think that seems like a rather incomprehensible and misguided evaluation process, you’d probably be right, which is why the REF has received so much flak. It also seems that unscrupulous universities have been able to game the system. One commentator managed to muster a “ partial, qualified, cautious defence” of the process, but the overall picture hardly inspires confidence. Research, research, research Referees in the Select Group (those who officiate on the Premier League) all started out on a basic referees course. Over time, they have been successfully promoted through the ranks from grassroots level, through semi-professional level, up to the Football League and beyond. stops play if a player is seriously injured and ensures that the player is removed from the field of play. An injured player may not be treated on the field of play and may only re-enter after play has restarted; if the ball is in play, re-entry must be from the touchline but if the ball is out of play, it may be from any boundary line. Exceptions to the requirement to leave the field of play are only when:

The number of substitutes, up to a maximum of five, which may be used in any match played in an official competition will be determined by FIFA, the confederation or the national football association. For men's and women's competitions involving the 1st teams of clubs in the top division or senior ‘A’ international teams where competition rules permit a maximum of five substitutes to be used, each team: ensures that any player bleeding leaves the field of play. The player may only re-enter on receiving a signal from the referee, who must be satisfied that the bleeding has stopped and there is no blood on the equipment The coach and other officials named on the team list (with the exception of players or substitutes) are team officials. Anyone not named on the team list as a player, substitute or team official is an outside agent. Unclassified Quality: that falls below the standard of nationally recognised work. Or work which does not meet the published definition of research for the purposes of this assessment.The referee may not change a restart decision on realising that it is incorrect or on the advice of another match official if play has restarted or the referee has signalled the end of the first or second half (including extra time) and left the field of play or abandoned the match. However, if at the end of the half, the referee leaves the field of play to go to the referee review area (RRA) or to instruct the players to return to the field of play, this does not prevent a decision being changed for an incident which occurred before the end of the half. div class="labelled--input">{label}