Results 51 to 60 of about 288 (91)

Uklanjanje benzofenona i kofeina procesima prečišćavanja voda [PDF]

, 2019
Benzofenoni  i  kofein  su  sveprisutni,  kako  u  otpadnim,  tako  i  u površinskim vodama, u koncentracijama od nekoliko ng/l do mg/l. Koriste se u proizvodnji kozmetičkih preparata, kao  pojačivači mirisa i ukusa, fiksatori u  parfemima,  aditivi  u  plastici,  ...
openaire   +2 more sources

The effects of caffeine on strength and endurance

Kofein je močan stimulans, ki vpliva na centralni živčni sistem in presnovne procese, zaradi česar je ena najbolj raziskanih snovi za izboljšanje telesne zmogljivosti.
Cvejoski, Simeon
core  

Purine and its derivatives

, 2019
Purini i njegovi derivati su heterociklički aromatski spojevi sastavljeni od pirimidinskog prstena spojenog na imidazolni prsten, te predstavljaju najznačajniju skupinu spojeva s dva kondenzirana heterociklička prstena.
Peranović, Katarina
core  

What is more common in fatal caffeine intoxication - suicide or unintentional overdose? [PDF]

Arh Hig Rada Toksikol
Lušić D, Bezak S, Karačonji IB.
europepmc   +1 more source

Učinki kofeina na moč in vzdržljivost

Caffeine is a powerful stimulant that affects the central nervous system and metabolic processes, making it one of the most researched substances for improving physical performance. With its stimulating effect, it can impact strength and endurance parameters, which leads to better sports achievements.
openaire   +1 more source

Razgradnja kofeina in teofilina s Fentonovim regentom v vodnih raztopinah

, 2021
Abstract: In my master thesis I investigated the Fenton reaction and a similar reaction with Fe(III) salt. I found out that the salt in contrast to the hydrogen peroxide has a greater influence on the decomposition of the organic matter itself. The classical Fenton reaction using Fe2+ ions is more efficient in decomposition than the Fenton-like ...
openaire   +1 more source

Caffeine in Coffee Beans and Coffee Beverages

Kofein je naravni alkaloid iz skupine metilksantinov in sodi med najpogosteje zaužite psihoaktivne spojine na svetu. V diplomskem delu je določena vsebnost kofeina v 30 vzorcih kave, od tega je 28 vzorcev sorte Coffea arabica, en vzorec Coffea canephora (
Zajšek, Nika
core  

Kofeina - substancja znana czy poznawana

Farmacja Polska, 2022
openaire   +1 more source

The acute effects of caffeine from various sources on muscle strength and power

Cilj: Primarni cilj ovog randomiziranog, dvostruko slijepog, placebom kontroliranog istraživanja bio je ispitivanje akutnih učinaka kofeina iz različitih izvora (1. guma za žvakanje, 2. gel, i 3.
Venier, Sandro
core   +2 more sources

Pozitivni i negativni učinci kofeina na sportsku izvedbu

, 2020
Athletes, besides hard training, often use food supplements to achieve the greatest results. Caffeine is the World Anti-doping Agency's approved supplement, commonly used among athletes because of its stimulating effect. Caffeine can be taken in various forms; as coffee, tea, energy drinks, caffeinated gums, gels with caffeine, and in anhydrous form ...
openaire   +1 more source