Artistic gymnastics - Biblioteka.sk

Upozornenie: Prezeranie týchto stránok je určené len pre návštevníkov nad 18 rokov!
Zásady ochrany osobných údajov.
Používaním tohto webu súhlasíte s uchovávaním cookies, ktoré slúžia na poskytovanie služieb, nastavenie reklám a analýzu návštevnosti. OK, súhlasím


Panta Rhei Doprava Zadarmo
...
...


A | B | C | D | E | F | G | H | CH | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9

Artistic gymnastics
 ...

Artistic gymnastics
Highest governing bodyFédération Internationale de Gymnastique
Registered players1881
Characteristics
Mixed-sexYes
TypeIndoor
Presence
OlympicSince the first Summer Olympics in 1896

Artistic gymnastics is a discipline of gymnastics in which athletes perform short routines on different apparatuses. The sport is governed by the Fédération Internationale de Gymnastique (FIG), which assigns the Code of Points used to score performances and regulates all aspects of elite international competition. Within individual countries, gymnastics is regulated by national federations such as British Gymnastics and USA Gymnastics. Artistic gymnastics is a popular spectator sport at many competitions, including the Summer Olympic Games.

History

A gymnast performing on the parallel bars in 1962.

The gymnastic system was mentioned in writings by ancient authors, including Homer,[1] Aristotle,[2] and Plato.[3] It included many disciplines that later became independent sports, such as swimming, racing, wrestling, boxing, and horse riding.[4] It was also used for military training.[5]

Gymnastics evolved in Bohemia and what later became Germany at the beginning of the 19th century. The term "artistic gymnastics" was introduced to distinguish freestyle performances from those used by the military.[6] The German educator Friedrich Ludwig Jahn, who was known as the father of gymnastics,[7] invented several apparatus, including the horizontal bar and parallel bars.[8] Two of the first gymnastics clubs were Turnvereins and Sokols.

The FIG was founded in 1881, and it remains the governing body of international gymnastics. The organization began with three countries and was called the European Gymnastics Federation until 1921, when the first non-European countries joined and it was reorganized into its modern form.[9]

Gymnastics was included in the 1896 Summer Olympics, but female gymnasts were not allowed to participate in the Olympics until 1928.[10] The World Artistic Gymnastics Championships, held since 1903, were only open to men until 1934.[11] Since then, two branches of artistic gymnastics have developed: women's artistic gymnastics (WAG) and men's artistic gymnastics (MAG). Unlike men's and women's branches of many other sports, WAG and MAG differ significantly in technique and in apparatuses used at major competitions.

Women's artistic gymnastics

As a team event, women's gymnastics entered the Olympics in 1928 and the World Championships in 1950. Individual women were recognized in the all-around as early as the 1934 World Championships.[11] The existing women's program—all-around and event finals on the vault, uneven bars, balance beam, and floor exercise—was introduced at the 1950 World Championships and at the 1952 Summer Olympics.[12]

The earliest champions in women's gymnastics tended to be in their 20s, and most had studied ballet for years before entering the sport. Larisa Latynina, the first great Soviet gymnast, won her first Olympic all-around medal at age 22 and her second at 26; she became world champion in 1958 while pregnant. Věra Čáslavská of Czechoslovakia, who followed Latynina and became a two-time Olympic all-around champion, was 22 when she won her first Olympic gold medal.

In the 1970s, the average age of Olympic gymnasts began to decrease. While it was not unheard of for teenagers to compete in the 1960s - Ludmilla Tourischeva was 16 at her first Olympics in 1968 - younger female gymnasts slowly became the norm as the sport's difficulty increased. Smaller, lighter girls generally excelled in the more challenging acrobatic elements required by the redesigned Code of Points. The 58th Congress of the FIG — held in July 1980, just before the Olympics — decided to raise the minimum age for senior international competition from 14 to 15.[13] However, the change, which came into effect two years later, did not eliminate the problem. By the time of the 1992 Summer Olympics, elite gymnasts consisted almost exclusively of "pixies" — underweight young teenagers — and concerns were raised about athletes' welfare.

In 1997, the FIG responded to this trend by raising the minimum age for international elite competition to 16.[14] This, combined with changes in the Code of Points and evolving popular opinion in the sport, led to the return of older gymnasts. While there are still gymnasts who are successful as teenagers, it is common to see gymnasts competing and winning medals well into their 20s.[15] At the 2004 Olympics, both the second-place American team and the third-place Russians were captained by women in their mid-20s;[16][17] several other teams, including those from Australia, France, and Canada, included older gymnasts as well. At the 2008 Olympics, the silver medalist on vault, Oksana Chusovitina, was a 33-year-old mother.[18] By the 2016 Olympics, the average age of female gymnasts was over 20, and it was almost 22 at the 2020 Olympics.[19]

Apparatus

Both male and female gymnasts are judged for execution, degree of difficulty, and overall presentation.[20] In many competitions, especially high-level ones sanctioned by the FIG, gymnasts compete in "Olympic order", which has changed over time but has stayed consistent for at least a few decades.

For male gymnasts, the Olympic order is:[21]

1) Floor exercise
2) Pommel horse
3) Still rings
4) Vault
5) Parallel bars
6) Horizontal bar

For female gymnasts, the Olympic order is:[22]

1) Vault
2) Uneven bars
3) Balance beam
4) Floor exercise

Men and women

Vault

The vault is both an event and the primary piece of equipment used in that event. Unlike most of the gymnastic events employing apparatuses, the vault is common to both men's and women's competition, with little difference between the two. A gymnast sprints down a runway, which is a maximum of 25 m (82 ft) in length, before leaping onto a springboard. Harnessing the energy of the spring, the gymnast directs his or her body hands-first toward the vault. Body position is maintained while "popping" (blocking using only a shoulder movement) the vaulting platform. The gymnast then rotates his or her body to land in a standing position on the far side of the vault. In advanced gymnastics, multiple twists and somersaults may be added before landing. Successful vaults depend on the speed of the run, the length of the hurdle, the power the gymnast generates from the legs and shoulder girdle, kinesthetic awareness in the air, and the speed of rotation in the case of more difficult and complex vaults.

In 2004, the traditional vaulting horse was replaced with a new apparatus, sometimes known as a tongue or table. It is more stable, wider, and longer than the older vaulting horse—about 1 m (3.3 ft) in length and width, giving gymnasts a larger blocking surface—and is therefore safer than the old vaulting horse. This new, safer apparatus led gymnasts to attempt more difficult vaults.[23]

Notable champions

On the men's side, the gymnasts who have won the most Olympic and/or World Championship titles on vault are Marian Drăgulescu of Romania and Ri Se-gwang of North Korea, with four titles each. Yang Hak-seon, Eugen Mack, Alexei Memo, Vitaly Scherbo, Li Xiaopeng, and Lou Yun have each won three titles.

On the women's side, Věra Čáslavská of Czechoslovakia has won the most titles, with four. Simona Amânar, Simone Biles, Cheng Fei, Elena Zamolodchikova, and Rebeca Andrade have each won three.

 Diego Hypólito (BRA) vaulting from a modern vaulting table during the 2007 Pan American Games

Floor exercise

The floor event occurs on a carpeted 12 m × 12 m (39 ft × 39 ft) square consisting of hard foam over a layer of plywood, which is supported by springs or foam blocks. This provides a firm surface that will respond with force when compressed, allowing gymnasts to achieve extra height and a softer landing than would be possible on a regular floor.

Men perform without music for 60 to 70 seconds and are required to touch each corner of the floor at least once during their routine. Their routines include tumbling passes to demonstrate flexibility, strength, balance, and power. They must also show non-acrobatic skills, including circles, scales, and press handstands.

Women perform a 90-second choreographed routine to instrumental music. Their routines consist of tumbling passes, jumps, dance elements, acrobatic skills, and turns. Elite gymnasts may perform up to four tumbling passes.

Notable champions

On the men's side, the gymnasts who have won the most Olympic and/or World Championship titles on floor are Marian Drăgulescu of Romania, with four (along with Roland Brückner, if the Alternate Olympics are included). Ihor Korobchynskyi, Vitaly Scherbo, and Kenzō Shirai have three titles each.

On the women's side, Simone Biles of the United States has the most titles (7), followed by Larisa Latynina of the Soviet Union (4). Gina Gogean, Daniela Silivaș, and Nellie Kim have three titles each.

Men only

Pommel horse

A typical pommel horse exercise involves both single leg and double leg work. Single leg skills are generally found in the form of "scissors". In double leg work, the gymnast swings both legs in a circular motion (clockwise or counterclockwise depending on preference). To make the exercise more challenging, gymnasts will often include variations on typical circling skills by turning ("moores" and "spindles") or by straddling their legs ("flares"). Routines end when the gymnast performs a dismount, either by swinging his body over the horse or landing after a handstand.

Notable champions

The gymnasts who have won the most Olympic and/or World Championship titles on pommel horse are Miroslav Cerar of Yugoslavia, Zoltán Magyar of Hungary, and Max Whitlock of Great Britain, with five titles each. Krisztián Berki, Dmitry Bilozerchev, Pae Gil-su, Xiao Qin, Boris Shakhlin, and Marius Urzică, have won at least three titles apiece.

Still rings

The still rings are suspended on wire cable from a point 5.8 m (19 ft) off the floor[24] and adjusted in height so the gymnast has room to hang freely and swing. Gymnasts must demonstrate balance, strength, power, and dynamic motion while preventing the rings themselves from swinging. At least one static strength move is required, but some gymnasts include two or three.

Notable champions

The gymnasts who have won the most Olympic and/or World Championship titles on still rings are Jury Chechi of Italy (6) and Chen Yibing of China (5). Nikolai Andrianov, Albert Azaryan, Alexander Dityatin, Alois Hudec, Akinori Nakayama, Eleftherios Petrounias, and Liu Yang each have at least three such titles, as does Dmitry Bilozerchev if the Alternate Olympics are included.

Parallel bars

The parallel bars consist of two bars slightly further than shoulder-width apart and usually 1.75 m (5.7 ft) high. Gymnasts execute a series of swings, balancing moves, and releases that require strength and coordination.

Notable champions

The gymnasts who have won the most Olympic and/or World Championship titles on parallel bars are Vladimir Artemov of the Soviet Union (5, including the Alternate Olympics) and Li Xiaopeng and Zou Jingyuan of China (4). Li Jing and Vitaly Scherbo have each won three titles.

Horizontal bar

The horizontal bar (also known as the high bar) is a 2.4 cm (0.94 in) thick steel bar raised 2.5 m (8.2 ft) above the ground. The gymnast performs 'giants' (360-degree revolutions around the bar), release skills, twists, and changes of direction. By using the momentum from giants, enough height can be achieved for spectacular dismounts, such as a triple-back somersault. Leather grips are usually used to help maintain a hold on the bar.

Notable champions

The gymnast who has won the most Olympic and World Championship titles on the horizontal bar is Epke Zonderland of the Netherlands, with four titles. Zou Kai, Leon Štukelj, and Takashi Ono have each won three, as has Dmitry Bilozerchev if the Alternate Olympics are included.

Women only

Uneven bars

The uneven bars (known as asymmetric bars in the UK) were adapted by the Czechoslovakian Sokol from the men's parallel bars some time before World War I, and were shown in international exhibition for the first time at the 1928 Summer Olympics in Amsterdam.[25] They consist of two horizontal bars set at different heights. Gymnasts perform swings, pirouettes, transition moves between the bars, and releases.

Higher-level gymnasts usually wear leather grips to ensure a strong hold on the bars while protecting their hands from painful blisters and tears (known as rips). Gymnasts sometimes wet their grips with water from a spray bottle and may apply chalk to prevent the grips from slipping. Chalk may also be applied to the hands and bar if grips are not worn.

Notable champions

The gymnasts who have won the most Olympic and/or World Championship titles on uneven bars are Svetlana Khorkina of Russia (7) and Maxi Gnauck of East Germany (5, including the Alternate Olympics). Daniela Silivaș of Romania and Nina Derwael of Belgium have each won three titles. Aliya Mustafina won back-to-back uneven bar Olympic titles in 2012 and 2016.

Balance beam

The balance beam existed as early as the 1880s in the form of a "low beam" close to the floor.[25] By the 1920s, the beam was raised much higher due to Swedish influence on the sport.[25]

Gymnasts perform routines ranging from 70 to 90 seconds in length, consisting of leaps, acrobatic skills, turns, and dance elements, on a padded spring beam. Apparatus norms set by the FIG specify that the beam must be 125 cm (4 ft) high, 500 cm (16 ft) long, and 10 cm (3.9 in) wide.[26] The event requires balance, flexibility, and strength.

Notable champions

Of all gymnastics apparatuses—men's or women's—balance beam has proven the most difficult on which to win multiple Olympic and World Championship titles. Simone Biles has four World titles on this event, and there are only two other gymnasts to have won three Championship titles in total for Olympic and Worlds — Nadia Comăneci and Daniela Silivaș of Romania.

Competition format

A sculpture of a gymnast at the Wingate Institute in Israel.

In Olympic and World Championship competition, meets are divided into several sessions held on different days: qualifications, team finals, all-around finals, and event finals.

During the qualification round (abbreviated TQ), gymnasts compete with their national squad on all four (WAG) or six (MAG) events. The scores from this session are not used to award medals, but rather to determine which teams advance to the team finals and which individual gymnasts advance to the all-around and event finals. For the 2020 Olympics, teams will consist of four gymnasts, with up to two additional gymnasts per country allowed to compete as individuals. The format of team qualifications is 4–4–3, meaning that all four gymnasts compete on each event, but only the top three scores count. Individual gymnasts may qualify to the all-around and event finals, but their scores do not count toward the team's total.

In the team finals (abbreviated TF), gymnasts compete with their national squad on all four or six events. The scores from the session determine the medalists in the team competition. The format is 4–3–3, meaning that of the four gymnasts on the team, three compete on each event, and all three scores count.[27]

In the all-around finals (abbreviated AA), gymnasts compete individually on all four or six events, and their totals determine the all-around medals. Only two gymnasts per country may advance to the all-around finals from the qualification round.

In the event finals (abbreviated EF) or apparatus finals, the top eight gymnasts on each event (as determined by scores in the qualification round) compete for medals. Only two gymnasts per country may advance to each event final.

Competitions other than the Olympics and World Championships may use other formats. For instance, the 2007 Pan American Games had only one day of team competition with a 6–5–4 format, and three athletes per country were allowed to advance to the all-around. In other meets, such as those on the World Cup circuit, the team event is not contested at all.

New life

Since 1989, competitions have used the "new life" rule, under which scores from one session do not carry over to the next. In other words, a gymnast's performance in team finals does not affect his or her scores in the all-around finals or event finals, and marks from the team qualifying round do not count toward the team finals.

Before this rule was introduced, the scores from the team competition carried over into the all-around and event finals. Final results and medal placement were determined by combining the following scores:

Qualifiers for all-around and event finals
Team compulsories + team optionals
Team competition
Team compulsories + team optionals
All-around competition
Team results (compulsories and optionals) averaged + all-around
Event finals
Team results (compulsories and optionals) averaged + event final

Compulsoriesedit

Until 1997, the team competition consisted of two sessions, with every gymnast performing standardized compulsory routines in the preliminaries and individualized optional routines on the second day. Team medals were determined based on the combined scores of both days, as were the qualifiers to the all-around and event finals. However, the all-around and event finals did not include compulsory routines.

In meets where team titles were not contested, such as the American Cup, there were two days of all-around competition: one for compulsories and another for optionals.

While optional routines were developed by each gymnast and her coach in accordance with the Code of Points and the gymnast's personal strengths, compulsory routines were developed and choreographed by the FIG Technical Committee. The dance and tumbling skills were generally less difficult than those in optional routines, but perfect technique, form, and execution were heavily emphasized. Scoring was exacting, with judges taking deductions for even slight deviations from the required choreography. For this reason, many gymnasts and coaches considered compulsories more challenging than optionals.

Compulsories were eliminated at the end of 1996. The move was highly controversial, with many successful gymnastics federations—including the United States', Russia's, and China's—arguing that the compulsory exercises helped maintain a high standard of form, technique, and execution among gymnasts. Opponents of compulsories believed that they harmed emerging gymnastics programs.

Some members of the gymnastics community still argue that compulsories should be reinstated, and many gymnastics federations have maintained compulsories in their national programs. Oftentimes, gymnasts competing at the lower levels of the sport—for instance, Levels 4–6 in USA Gymnastics, Grade 2 in South Africa, and Levels 3–6 in Australia—only perform compulsory routines.

Competition levelsedit

Artistic gymnasts compete only with other gymnasts at their level. Each athlete starts at the lowest level and advances to higher levels by learning more difficult skills and achieving qualifying scores at competitions.

United Statesedit

In the United States, whose program is governed by USA Gymnastics, levels range from 1 to 10, followed by elite. Levels 1 to 2 are usually considered recreational, or beginner; 3 to 6 intermediate; and 7 to elite advanced. Competitions begin at Level 3 or, in some gyms, Level 2. A gymnast must be able to perform specific skills on each event to advance to the next level, and once a gymnast has competed in a sectional meet at a given level, they may not drop back to a lower level in the same competitive season. Gymnasts in Levels 1–2 perform basic skills such as handstands and cartwheels. Levels 3–5 consist of compulsory routines; 6 is an in-between level with strict requirements but some leeway for gymnasts to show their own creativity; and Levels 7–10 consist of optional routines.[28] Only elite gymnasts compete in accordance with the FIG's Code of Points; lower levels have a modified code.

The elite program is divided into two categories: junior for gymnasts younger than 16, and senior for gymnasts 16 and older. (Gymnasts are allowed to compete at the senior level at the beginning of the calendar year in which they will turn 16.) Olympic teams are chosen from the senior elite program.

United Kingdomedit

The British Gymnastics level system goes from 5 (lowest) to 2, and there are separate tracks for elite- and club-level competition.

Canadaedit

There are several competitive streams in Canadian gymnastics: recreational, developmental, pre-competitive, provincial, national, and high-performance. Provincial levels range from 5 (lowest) to 1; national levels are pre-novice, novice, open, and high performance; and high-performance levels are novice, junior, and senior.

Germanyedit

In Germany, there are different competitive systems for recreational and high-performance gymnasts. Recreational gymnasts have a system of compulsory exercises from 1 to 9 and optional exercises from 4 to 1, with modified Code of Points requirements. For high-performance and junior athletes, there are compulsory and optional requirements defined by age, from ages 6 to 18.[29]

Age requirementsedit

The FIG imposes a minimum age requirement on gymnasts competing in certain international meets, but it does not impose a maximum age limit. The term senior refers to world-class or elite gymnasts who are age-eligible under FIG rules: Female gymnasts must be at least 16 or turning 16 within the calendar year, and the minimum age for men is 18. The term junior refers to any gymnast who competes at a world-class or elite level but is too young to be classified as a senior.

Juniors are judged under the same Code of Points as seniors and often exhibit the same level of difficulty in their routines, but they are not allowed to compete at the Olympics, World Championships, or World Cups. Many meets, such as the European Championships, have separate divisions for juniors. But some competitions, such as the Goodwill Games, the Pan American Games, the Pacific Rim Championships, and the All-Africa Games, permit seniors and juniors to compete together.

The age requirement is contentious and is frequently debated by coaches, gymnasts, and other members of the gymnastics community. Those in favor of the age limits[who?] argue that they promote the participation of older athletes and spare younger gymnasts from the stress of competition and high-level training. Opponents point out that junior gymnasts are scored under the same Code of Points as the seniors (with some restrictions) and train mostly the same skills. They also argue that younger gymnasts need the experience of competing in major events to improve as athletes.

Since stricter age requirements were adopted in the early 1980s, there have been several well-documented and many more suspected cases of juniors with falsified documents competing as seniors. The FIG has only taken disciplinary action in three cases: those of Kim Gwang-Suk of North Korea, who competed at the 1989 World Artistic Gymnastics Championships when she may have been as young as 11;[30][31] Hong Su-jong of North Korea, who competed under three different birth dates in the 2000s;[32] and China's Dong Fangxiao, who competed at the 2000 Olympics when she was 14.[33][34]

While the minimum age requirement applies to both women and men, it is more contentious in the women's program[citation needed] because, while most top male gymnasts are in their late teens or early twenties, female gymnasts are typically ready to compete at the international level by their mid-teens. The difference is largely due to the fact that men's skills tend to emphasize strength more than women's skills.[citation needed]

Scoringedit

A judge's point deductions at a competition

Scoring at the international level is regulated by the Code of Points.

Under the system established in 2006, two panels judge each routine, evaluating different aspects of the performance. The D score covers skill requirements, difficulty value, and connection value (for skills performed back to back with no pause in between); the E score covers execution and artistry; and the two are added together to produce final scores. The maximum E score is 10, but there is no cap on the D score. Theoretically, this means scores could be infinite. However, average marks for routines in major competitions have generally been in the low to mid teens.

This system, with its open-ended difficulty score, is very different from the one used for most of the sport's history. Before 2006, the highest possible score was a "perfect 10". Every routine was assigned a start value (SV) based on difficulty. A routine that included all required elements received a base SV—9.4 in 1996, 9.0 in 1997, 8.8 in 2001—and gymnasts could increase their SV to a maximum of 10 by performing harder skills and combinations. Then, to score a gymnast's routine, judges deducted from the SV for errors in execution.

Some gymnasts and coaches—including Olympic gold medalists Lilia Podkopayeva, Svetlana Boginskaya, Shannon Miller, and Vitaly Scherbo, and Romanian team coach Nicolae Forminte — publicly opposed the new Code of Points when it was first announced. In addition, a 2006 report from the FIG Athletes' Commission cited major concerns about scoring, judging, and other subjects. Aspects of the code were revised in 2007, but there are no plans to return to the "perfect 10" format.

Major competitionsedit

Globaledit

  • Olympic Games: Artistic gymnastics is one of the most popular events at the Summer Olympics, held every four years. Countries qualify teams based on their performance at the World Championships the year before the Games. Nations that do not qualify to send a full team may qualify to send one or two individual gymnasts.
  • World Championships: The gymnastics-only World Championships is open to teams from every FIG member nation. The competition has different formats depending on the year: full team finals, all-around, and event finals; all-around and event finals only; or event finals only. Since 2019, the Junior World Championships have been held every two years.
  • The Artistic Gymnastics World Cup and World Challenge Cup Series
  • Goodwill Games: Artistic gymnastics was an event at this now-defunct competition.

Regionaledit

Multi-sportedit

  • All-Africa Games: Held every four years, and open to teams and gymnasts from African nations.
  • Asian Games: Held every four years, and open to teams and gymnasts from Asian nations.
  • Central American and Caribbean Games: Held every four years and open to teams and gymnasts from Central America, the Caribbean, Mexico, and the South American countries of Colombia, Guyana, Suriname, and Venezuela.
  • Commonwealth Games: Held every four years, and open to teams and gymnasts from Commonwealth nations.
  • European Games: Held every four years, and open to teams and gymnastics from European nations.
  • Mediterranean Games: Held every four years, and open to gymnasts from nations around or very close to the Mediterranean Sea, where Europe, Africa, and Asia meet.
  • Pan American Games: Held every four years, and open to teams and gymnasts from North, South, and Central America.
  • South American Games: Held every four years, and open to teams and gymnasts from South American nations.
  • Southeast Asian Games: Held every two years, and open to teams and gymnasts from Southeast Asian nations.

Gymnastics onlyedit

  • Asian Gymnastics Championships: Open to teams and gymnasts from Asian nations.
  • European Championships: Held every year, and open to teams and gymnasts from European nations.
  • Pacific Rim Championships (known as the Pacific Alliance Championships until 2008): Held every two years, and open to teams from members of the Pacific Alliance of National Gymnastics Federations, including the US, China, Australia, Canada, Mexico, New Zealand, and other nations on the Pacific coast.
  • Pan American Gymnastics Championships: Held most years when the Pan American Games are not held, and open to teams and gymnasts from North, South, and Central America
  • Zdroj:https://en.wikipedia.org?pojem=Artistic_gymnastics
    Text je dostupný za podmienok Creative Commons Attribution/Share-Alike License 3.0 Unported; prípadne za ďalších podmienok. Podrobnejšie informácie nájdete na stránke Podmienky použitia.






Text je dostupný za podmienok Creative Commons Attribution/Share-Alike License 3.0 Unported; prípadne za ďalších podmienok.
Podrobnejšie informácie nájdete na stránke Podmienky použitia.

Your browser doesn’t support the object tag.

www.astronomia.sk | www.biologia.sk | www.botanika.sk | www.dejiny.sk | www.economy.sk | www.elektrotechnika.sk | www.estetika.sk | www.farmakologia.sk | www.filozofia.sk | Fyzika | www.futurologia.sk | www.genetika.sk | www.chemia.sk | www.lingvistika.sk | www.politologia.sk | www.psychologia.sk | www.sexuologia.sk | www.sociologia.sk | www.veda.sk I www.zoologia.sk