Send Orders for Reprins o reprins@benhamscience.ae he Open Cyberneics & Sysemics Journal, 2015, 9, 1911-1916 1911 Open Access Research on he Effeciveness of Nuriion Supply in Beach Volleyball Playing Based on R Weighed Mean Algorihm Xiu-yun Cui * Deparmen of Physical Educaion, Xi an Universiy of Archiecure and echnology, Xi an 710055, China Absrac: he special environmen in beach volleyball playing generaes inense simulaion on human bodies, which is prey helpful in improving he performances of many spors. Meanwhile, he nuriion supply is also showing is criical significance. Due o he aliude environmen, a special requiremen is imposed on he calorie and nuriion supplied o he bench volleyball players in raining. herefore, he players should inake he sugar, spors drink, minerals, viamins and some nuriional addiives, correspondingly. A las, he R Weighed Mean Algorihm (RWMA) is used o analyze he daa from he sample. he resul shows ha on he basis of he beach volleyball player s need for nuriion, we should give he beach volleyball player meals of high carbohydrae and oher nuriional supplemen. And his may have some help o he improving of he beach volleyball player s healh and physical abiliy. Keywords: Nuriion and food safey, Beach volleyball player, R Weighed Mean Algorihm (RWMA), Effeciveness. 1. INRODUCION Beach volleyball, a new spor ha was creaed in America in 1930s, has been he rage in 1970s. Especially afer i had been placed on Olympic Games, rockeing developmen has made i o be he spor ha is full of he mos poenial and he mos sigh in he modern field now. In our counry, he very beginning of inroducion of beach volleyball was in July 1989. In recen years, as a new spor and wih he iniial sages of naional spor indusrializaion which is a relaive good environmen for developing spors, beach volleyball do has some developmen, bu i sill leaves much o be desired even wihou negaive impac of old spor managemen sysem. In he beginning, he beach volleyball was played purely o saisfy people's enerainmen and amusemen, and hen i became gradually preferred by he oudoor spors fans, and gradually swep he whole globe [1]. During he lae 1980s and early 1990s, Beach Volleyball came o China. Alhough he ime afer is inroducion was very shor, i became very popular among college sudens. he reasons for his phenomenon includes: i's good for finess, enerainmen, fun, fashion; enlighening, and oher funcions; is venues are delicae, sof, effecively reducing spors inuries and rauma; i has fewer resricions on he venue, suiable for differen age, sex, levels of he paricipans, and having he various forms of compeiion: compeiion wihin he universiy, compeiion beween he universiies sudens ournamens, and so on. A presen, he "Ouline of he Developmen of Volleyball Program-Beach Volleyball in 2001-2008" made by he Chinese Volleyball Associaion, specially emphasizes ha Beach Volleyball program should srenghen is cooperaion wih he deparmens of educaion and promoe he schoolbased youh beach volleyball proecs including "promising proec", "Seed Proec", and "Hope Proec" [2]. Wha's more, Beach Volleyball in 1996 was included in he Olympic Evens, and in recen years he level of he Chinese women's volleyball eam began o rebound, which once again aroused people's passion of volleyball. A his special ime, can inec new blood and bring new vialiy o Beach Volleyball program, oo. Researchers have explored he effec of differen scoring sysems and cour dimensions in he spor [3]. Common findings in he lieraure suggesed ha he smaller cour dimensions increased mach duraion and changed he physiological demands of he spor [Xiang, e al., 2005]. Similarly, skill ses used by winning eams also varied in accordance wih a change in cour dimension. Wih side8ou scoring, a maor difference beween winning and losing eams was heir abiliy o receive he serve successfully, whereas in rally poin scoring, success was deermined by kill efficiency [4]. A his poin i is imporan o noe ha lieraure peraining o playing characerisics in he spor of beach volleyball published before 2001 will show resuls ha are inconsisen wih he way ha he modern game is played (personal discussion wih Canadian naional beach volleyball coach), [5]. In he modern beach volleyball mach, he speed of he change beween he wo eams aack and defend becomes faser and faser. And he mach also becomes more and more inense. he beach volleyball player, as he core of he mach, mus sui he needs of he developmen of he beach volleyball mach. So, hey should ake some special raining of physical abiliy, and if hey do no have excellen physical 1874-110X/15 2015 Benham Open
1912 he Open Cyberneics & Sysemics Journal, 2015, Volume 9 Xiu-yun Cui abiliy and nuriion supply, he beach volleyball player would no have good performance in he mach. he rapid and effecive promoion and developmen of Beach Volleyball in China Universiies has cerain pracical significance. Colleges usually have large spors populaion; he sudens have high culural qualiy, srong sense of spor awareness, and srong power of publiciy. Mos of he sudens of Physical Educaion will work in he basic unis, which can bring he awareness of Beach Volleyball and aciviy habis here, hus make his spor spread wholly. Wha's more, i can be conducive o selec "promising alens", and culivae he reserve forces of his spor, and gradually perfec he personnel raining sysem, and ulimaely promoe popularizing and compeiive levels of Beach Volleyball. 2. HE CURREN SIUAION OF DEVELOPMEN OF BEACH VOLLEYBALL PLAYING IN CHINA Firs, markeizaion of professional beach volleyball in China means ha professional beach volleyball as a kind of spors service produc eners he orbis of marke economy and runs well guided by he marke and cenered by he economic benefis. In he markeing operaion process, wih spors economics, spors managemen and markeing managemen as he guidance, markeizaion of he professional proec beach volleyball is summarized and operaionally analyzed. Secondly, professional beach volleyball marke, in which naure of he produc, invesmen and financing channels, he organizaion and managemen mode, he benefi are differen from oher spors marke in China, is he emerging marke in he process of developmen of he marke economy. he formaion, he obecives of he organizaion, he srucure, he disribuion of conrol righs and operaion mechanism of markeizaion of professional beach volleyball and professional beach volleyball club sysem in China, are differen from oher developed counries' professional beach volleyball marke. hirdly, he esablishmen of he marke economy sysem and is developmen, and reformaion of compeiive spors in China promoe he formaion and developmen of he markeizaion of professional beach volleyball. Professional beach volleyball clubs become he main running bodies of he marke; meanwhile, he governmen's suppor and compeiion sysem provide a plaform of he formaion of he markeizaion of professional beach volleyball. he Governmen Guiding supply paern is currenly "boleneck" resricion of developmen of markeizaion of professional beach volleyball in China. Fourhly, media, fans, sponsors and local governmens are he main bodies of our professional beach volleyball marke demand. Supply bodies are professional beach volleyball clubs and even organizaions. Professional beach volleyball compeiion marke inermediary agencies mainly underake he business aciviies and proecs promoion agency. Professional beach volleyball price mechanism mainly manifess ha he prices of he producs, he characerisics of he produc, he influence facors of he pricing and selecion pricing sraegy, and ec. Fifhly, during he marke equilibrium of professional beach volleyball, he role of price facor is limied o supply and demand marke balance. he main facor influencing he consumer demand in he marke are consumer uiliy, produc prices and consumer preferences, he capaciy of spors promoion agency and he developmen and operaion of inangible asses of Professional Beach Volleyball Club. Non-price facors have become elemens of a balanced supply and demand. Professional beach volleyball has characerisics of marke equilibrium as follows: he regional differences beween he marke equilibrium prices are very significan, and he saus of marke supply and demand rends in non-equilibrium sae. Sixhly, he relaionship beween professional beach volleyball ournamen organizaions and invesors is fuzzy. Despie he principal-agen relaionship in he form, i is lack of sysem and mechanism of conrac and consrain. Compared wih AVP professional beach volleyball in America, he curren cooperaion and conrac in China is limied beween professional beach volleyball ournamen organizaions and heir invesmen operaors, and he mechanisms are inadequae o esablish he agency. Sevenhly, here are problems exising in our professional beach volleyball proec marke, for insance, he marke scale, srucure, operaion mechanism and he inernal and exernal marke environmen of. he main coping sraegies are: accelerae and perfec he marke sysem and he marke, furher improve he' naional our of he organizaional srucure, esablish propery sysem of he marke main coping reasonably as soon as possible, creae favorable policy environmen, and formulae and improve he relaed laws and regulaions. he developmen sraegy of compeiive volleyball refers o sysem, sage, and scienific planning o he global developmen sraegy of compeiive volleyball and mehods and sraegies of coordinaing he global. Chinese volleyball associaion's 2001-2008, 2009-2016 plan is he manifesaion of he sraegy of developmen of compeiive volleyball in China. he implemenaion of he wo plan saes he sraegy bu here are many pracical problems in he implemenaion of he plan. Resoluion of hese issues mus proceed from he sraegic heigh, hrough a comprehensive, longerm, inegraed approach and sraegy o solve. he managemen model, ahlee s culural qualiy, volleyball Club, raining effec, reserve raining and coach s effec are he maor resricive facors affecing developmen of compeiive volleyball in China in he new period. In hese facors, perfecing managemen mode is o proec and improving coach s overall quaffed is he key, raising he level of spors eam raining is fundamenal, and srenghen raining reserve personnel is he foundaion of, improving ahlees culural qualiy is he driving force, and improving living environmen of Club is a prerequisie. he inernaional promoion, compeiion sysems, economic invesmen and business developmen is he promoion of compeiive volleyball developmen in China in he new period. Among hem, he rapid developmen of inernaional Volleyball has provided he condiions for developmen and improvemen of Chinese compeiive volleyball,
Research on he Effeciveness of Nuriion Supply in Beach he Open Cyberneics & Sysemics Journal, 2015, Volume 9 1913 volleyball league implemenaion of hos-gues-cour sysem provides organizaions o ensure raising he level of volleyball spors in China, China's rapid economic developmen provides maerial guaranee for he developmen of Chinese compeiive volleyball, commercial developmen and spors professional model has provided experience for he developmen of Chinese Professional volleyball. According o he advanage and disadvanage, opporuniy and hreaen exising in ahleic volleyball developmen during Chinese new era, here are four developmen sraegies can be seleced: pioneering sraegy of playing inernal advanage and using exernal opporuniies of organizaion; proes ype sraegy of using organizaion advanage and avoiding or reducing is exernal hrea; by of fighing sraegy by using exernal opporuniies o cover inernal disadvanage of organizaion; and conservaive ype sraegy by reducing inernal disadvanage of organizaion and avoiding exernal environmen hrea. Each sraegic developmen direcion includes he wo sraegies ypes. herefore, he cooperaion wih various media should be srenghened. Propagandizing beach volleyball vigorously and he work of propagandizing should be focused on he paricular culure meaning of beach volleyball. I should enlarge our naion's populaion of beach volleyball. he inroducion of middleman ino beach volleyball mach marke should be inensified based on reciprocal condiion. he combinaion managemen of beach volleyball mach wih ravel indusry, enerainmen indusry, rag rade and cosmeic indusry should be reinforced widely. 3. HE R WEIGHED MEAN ALGORIHM AND RESEARCH MEHOD he deeced impulses will be removed by R algorihm. Le f be he value of he sample a saisics locaion (). For he corruped saisics ( ), he sample size (2Lf + 1) (2Lf + 1) is used. Saring wih L f =1, his sample size ieraively exends ouward by one saisics in is four sides unil he number of free saisics (denoed by P ) wihin his sample size is no less han 1. Le W denoe he values of free saisics in he concerned area, i.e., W = { f i+ s, + bi+ s, + = 0, b = 1, (1) (,) s (0,0), Lf s, Lf} he weighed mean value g of he saisics values in W is defined as: w fi+ s, + Wi, g = w ) fi+ s, + Wi, where i s, f i+ s, + i+ s, + i+ s, + w + + means he weigh of f +. Le m be he median value of W. Because he median value has he leas probabiliy o be he value of he corruped saisics [1], m is uilized o deermine w +. I is easy o undersand ha he smaller he absolue difference beween (2 f + and m, he larger he weigh w + should be o srenghen he influence of f + on g. Based on exensive simulaions which indicae ha w + is dependen on boh above absolue difference and noise raio, w + is chosen as: f i+ s, + m f max f min w = R+ (1 R) (3) i+ s, + f i+ s, + m 1 f f max Where f and max f min denoe he maximum saisics value and he minimum one in he concerned area, respecively. he oupu is obained by: h = b g + (1 b ) f + (4) hen we have: q = x, y, z,,,, q= q, q,..., q (5) i [ ] 1 2 i he equaion is esablished. he R weighed mean algorihm akes he Caresian coordinaes and Euler angle ha respecively shows he posiion and direcion of sample orien as he generalized coordinae, and esablishes saisics equaion by R weighed mean algorihm: d q μ Q d + + = (6) q q q Inegriy Consrain Equaion: ( q, ) = 0 (7) Non-Inegriy Consrain Equaion: qq,, = 0 (8) 4. HE NURIION SUPPLEMEN DURING BENCH VOLEYBALL PLAYING BASED ON HE EXPERI- MEN DAA he experimen group is rained wih correc nuriion supplemen in a bench volleyball playing game while he reference group is rained wihou correc nuriion supplemen in a same bench volleyball playing. he experimen daa is obained and disposed by R weighed mean algorihm. he Fig. 1 shows comparison of he performance of he wo groups. Each group is rained wihou he nuriion supplemen for one hour, he experimenal daa is record. hen each group is rained wih he nuriion supplemen for one hour in a same bench volleyball playing, he experimenal daa is also record. he experimen daa is obained and disposed by R weighed mean algorihm. Fig. 2 shows he comparison of he performance before and afer he nuriion supplemen for each group [6-7]. While in he bench volleyball raining, he players have o overcome boh he hypoxia simulaion and large consumpion of energies. In order o preven he undue accumulaion of faigue caused by huge energy consumpion, he body is min n
1914 he Open Cyberneics & Sysemics Journal, 2015, Volume 9 Xiu-yun Cui Fig. (1). he Comparison of he Performance of he wo Groups. Fig. (2). he Comparison of he Performance Before and Afer he Nuriion Supplemen For Each Group. required o supplemen some carbohydraes which consume lile oxygen bu release energies quickly. In he adapive period, he conen of fa should be reduced and carbohydrae increased. Supplemen of glucose before exercise can increase he glycogen sore in he body; supplemen of glucose during he exercise can effecively mainain he blood sugar level and defer he faigue; and ha afer he exercise if in favor of he composiion and recovery of muscle glycogen and hepaic glycogen. In addiion, he moderae supplemen of sugar can simulae he secreion of insulin, enhance he composiion of muscle proein and improve he immuniy of he body. During he supplemen of sugar, aenion should be paid o he caegory of he sugar as well as he ime and concenraion of he sugar supplemened. he common sugar includes he glycogen, frucose and oligosaccharide, of which he honey is a kind of naural frucose. In he meanime, he easy-o-diges food is advised o be inpu. Commonly, he concenraion of sugar supplemen is beer be beween 5% and 10%, and ha i could be a lile higher afer he exercise, beween 10% and 35%. he bench volleyball players need o consume more sugar in he aliude raining han in he plain raining. his sugar is mainly acquired from he food and beverage conaining sugar. herefore, he food mus conain he high-concenraion sugar, which is also easy o absorb. According o he laes sudy conduced by Universiy of Connecicu, he ani-resisance raining in he dehydraed sae is prey unpromising, as i would has a passive influence on he hormone sae which is favorable o muscle growh. he researchers le he paricipan underake he same raining conen in hree saes, which are normal sae, dehydraed sae (reducion of 2.5% weigh) and exremely dehydraed sae (reducion of 5% weigh). hen, hey exraced he paricipan's blood o measure he change of he hormone relaed o he muscle growh, such as he esoserone, corisol, growh hormone, Para insulin growh facor, insulin, glucose and lacae, ec. I was founded ha he common sae has wo passive effecs on he esoserone: one of hem is o raise he level of corisol which would figh he esoserone for he recepor, hus lower he level of he esoserone; he oher is ha i reduce he oal amoun of he esoserone due o he exercise. In addiion, his sae also has influen on he meabolism of he carbohydrae and fa, which means ha people will have a higher conen of body fa. he spors beverage has he following funcions: a) promoing drinking; b) rapidly recovering and mainaining he body fluid equilibrium; c) supplying energy and improving he spors abiliy. In he meanime, he following condiions also need more aenion. he higher he concenraion of he elecron cu in and sugar in he spors drink is, he higher he osmoic pressure will be, and ha will resul in he reducion of drain of beverage in he somach. As he elecron cu in concenraion and osmoic pressure of in he swee is higher han in he blood plasma, he loss of waer is more han he cu in in he blood when he swee is secreed quickly. herefore, he supplemen spors drink should be a low osmoic pressure or equilibrium pressure, i.e. 250-370 unis
Research on he Effeciveness of Nuriion Supply in Beach he Open Cyberneics & Sysemics Journal, 2015, Volume 9 1915 of he osmoic pressure. he sugar conen of he spors drink should be beween 4% and 8%, and he sugar could be he glucose, cane sugar, oligosaccharide, shor-chain sarch (such as malose dexrin) and so on. he oligosaccharide, ofen composed of 3-8 monosaccharide molecules, is absorbed slower han he monosaccharide and disaccharide, so i can prolong he ime of sugar supply in he endurance exercise. As a lile sodium sal conained in he drink is good for absorpion of he sugar and waer, spors drinks ofen conain some, of which he concenraion is lower han ha in he blood, wih he sodium concenraion being abou 20-60 mol/l. According o relevan sudies, he inake of he spors drink wih good ases is obviously higher han fresh waer. Generally, i's no expeced o drink he carbohydrae spors drink before or during he exercise, as his kind of drink may generae he flaulence in he somach. he mos suiable emperaure is beween 50 C-130 C.Apar from he funcion of reducing he body emperaure, i can also creae a good flavor which is helpful in inake. During he raining, he mineral waer can be chosen plus glucose 3156 g, sodium chloride 0147 g, poassium chloride 0130 g and sodium cirae buffer 0153g. While supplemening he spors drink, he players should adop he principle of "many imes, lile amoun". Besides, he urine proporion and weigh would beer be recorded o monior he volume of he spors drink. When undergoing he bench volleyball raining, he supplemen of race elemens and minerals is effecive in geing rid of iredness and muscle spasm as well as mainain he waer-sal balance in human bodies. 1) During he bench volleyball raining, he nuriional reserve including he iron is very imporan o ahlees' compeence. On he plaeau, he ahlees' hemaopoieic funcion is obviously enhanced, for example, he red blood cell and hemoglobin are remarkably increased. herefore, during he bench volleyball raining, he iron elemen is helpful in raising he conen of he hemoglobin and oxygen in he blood. During he period of bench volleyball raining, he players should no only ea he food rich in iron, such as he animal organ, egg yolk, bean and fish, bu also appropriaely supplemen some iron preparaions which are slighly simulaing o he somach and inesine. he specific operaion is as follows: have he liquid iron preparaion 3 imes per day (oal volume for he male is 200-250mg per day and for he female 100-150mg). Shorage in iron during he raining will lead o he spors anemia, which no only harms he oxygen carrying capaciy, bu also damages he ahlee's healh, while he excessive iron may be oxic. he iron supplemen should be conduced under he docor's guidance. Before he raining, he iron reserve in he body mus be a he normal level. 2) he copper (Cu) is one of he necessary race elemens needed by all organisms. Wih he copper, he iron can' ener he hemoglobin cell during he biological synhesis mechanism. herefore, lack of copper also leads o anemia, even if here is sufficien iron. A plain ahlee mus inake 2-4 mg of copper. However, he copper can' be aken oo much, as i has anagonism effec wih he zinc. he food ha is riches in copper includes he animal gible, shellfish (oyser), nu, bean, raisin and drupe (aprico). 3) Zinc is needed by all organisms, as i is he componen of more han 200 meal enzymes. he food ha is rich in zinc includes he fresh mea, liver, egg and marine organism (oyser and menhaden). A plain ahlee needs o supplemen 15 mg of zinc, and he figure could be increased for hose engaging bench volleyball rainings. 4) During he bench volleyball raining, supplemen of cerain amoun of poassium (K), sodium (Na) and magnesium (Mg) is also needed, as hese minerals along wih ohers help he body afford he high-srengh and huge-amoun raining and preven he spasm caused by long-erm, high-srengh spors. During he raining of large amoun of exercise, he swee and excreion may lead o he large amoun of mineral loss, hus resuling in he loss of elemens including K, Na and Mg. herefore, he moderae supplemen of hese minerals is he assurance of he success of he bench volleyball raining. During he bench volleyball raining, he meabolism of viamins is also fasened. he sudy indicaes ha increase of Viamin B (VBI, VB2, VB12 and VB15) in die promoes human body o adap o he plaeau environmen. According o a sudy conduced by Russian researchers, he moderae inake of VB 15 can increase he oxidaive meabolism velociy of he issue and improve he sabiliy of he body in he hypoxia condiion. Generally, he ahlee would beer ake in 150 mg of VB15 per day from one week before he bench volleyball raining, and his is done coninually in he whole raining period. Afer he adapive phase of he raining, double of he volume should be aken in due o he huge amoun of raining, hus ensuring he sabiliy of he body. Viamin E has he funcion of weakening he aggregaion of plaeles, which means i can lower he hickness of he blood and make more free iron in he blood. For he blood circulaion, i's helpful o mediae he growh of he blood hickness caused by he increase of red cells during he bench volleyball raining. During he bench volleyball raining, 400 inernaional unis of viamin E should be supplemened per day. he insufficien inake of he viamin would affec he whole meabolism of he organism, lower he ahleic abiliy and reduce he compeence of adaping o he oudoor environmen and resising he illness. During he bench volleyball raining, he supplemen of he viamin can no only improve he anoxia olerance of he body, bu also improve he funcion of he higher nervous aciviy, buffer he iredness, and improve he spors olerance and immuniy of he body, hus making he ahlees ake par in he raining in he opimal saus. I is widely known ha Viamin D can srenghen he bone and have a lo of benefis on healh. In addiion, he sudy conduced by Purdue Universiy, he USA, founded ha Viamin B can also increase he hea effec of a meal. he recen sudy on he plaeau proves ha he ahlee doesn' lack viamin C; however, considering he viamin C has he chemical funcion of promoing he redox process in he body, acceleraing hemaopoiesis and deoxifying, ec., moderae amoun of viamin C should be supplemened in he load raining so as o lower he oxidaive sress caused by he raining. 5. CONCLUSION Nowadays, wih he compeiion sandard and biological echnology increasingly rising, he supplemen of he spors
1916 he Open Cyberneics & Sysemics Journal, 2015, Volume 9 Xiu-yun Cui nuriion provides an imporan suppor for he ahlees o obain good performances in he beach volleyball raining. During he beach volleyball raining, we would no only make appropriae raining plans for ahlees, bu also formulae suiable dinning plans and develop he food and spors onics rich in special nuriens specially for ahlees, hus helping hem o achieve ideal spors performances in he fuure compeiions. CONFLIC OF INERES he auhors confirm ha his aricle conen has no conflics of ineres. ACKNOWLEDGMEN his work is suppored by he Key Proec of Guangxi Social Sciences, China (No.gxsk201424), he Educaion Science fund of he Educaion Deparmen of Guangx China (No.2014JGA268), and Guangxi Office for Educaion Sciences Planning, China (No.2013C108). REFERENCES [1] C. J and C. Wang, Influence of Physical Educaion Culure of Higher Learning Schools on he Personaliies and Social Adapaion of Sudens, Journal of Guangzhou Physical Educaion Insiue, vol. 26, pp. 116-119, 2006. [2] L.E. Burke, and J. Fair, Promoing prevenion: skill ses and aribues of healh care providers who deliver behavioral inervenions, Journal of Cardiovascular Nursing, vol. 18, pp. 256-266, 2013. [3] M.B. Poer, J.D. Vu, and M. C. Minihane, Weigh managemen: Wha paiens wan from heir primary care physicians, he Journal of Family Pracice, vol. 50, pp. 513-518, 2011. [4] X. Wang, and J. Sun, Analysis of issues relaed o developmen of beach volleyball in colleges and universiies in China, Journal of ianshu vol. 29, pp. 100-102, 2009. [5] Q. Yan, and P. Gong, Invesigaion on he Nuriion Knowledge Aiudes and Dieary Behaviors of Universiy Sudens, Modern Prevenive Medicine, vol. 3, pp. 520-524, 2008. [6] X. Xiang, Z. Yang, and Z. Miao, Beach volleyball reserve personnel raining mechanism and influence facors of ECG, Journal of Physical Educaion, vol. 12, pp. 117-119, 2005. [7] Q. Zhang, S. Zeng, L. Zhu, and Z. Ca Nuriional Knowledge, Aiudes and Pracices of Shanou Universiy Sudens, Chinese Journal of School Healh, vol. 5, pp. 412-413, 2001. Received: June 10, 2015 Revised: July 29, 2015 Acceped: Augus 15, 2015 Xiu-yun Cui; Licensee Benham Open. his is an open access aricle licensed under he erms of he Creaive Commons Aribuion Non-Commercial License (hp://creaivecommons.org/licenses/bync/3.0/), which permis unresriced, non-commercial use, disribuion and reproducion in any medium, provided he work is properly cied.