Since the cave environment is dark, there is no plant life performing photosynthesis, and food is mainly introduced from the outside world by other organisms.

Since photosynthesis is also limited by ambient carbon dioxide levels, light curves are often repeated at several different constant carbon dioxide concentrations.

Since photorespiration requires additional energy from the light reactions of photosynthesis, some plants have mechanisms to reduce uptake of molecular oxygen by RuBisCO.

Since light intensity is the primary factor in the photosynthesis of plants, horticulturalists often measure and discuss optimum intensity for various plants in foot-candles.

Since there is more landmass in the northern hemisphere, the cycle is dominated by CO2 drawdown by photosynthesis during the northern hemisphere summer ; in winter the plants become a net source.

Since more is known about Quiney than about any other acquaintance of Shakespeare in Stratford, his career may be followed to its sudden end in 1602.

Since the Connally amendment has the effect of giving the same right to the other party to a dispute with the United States, it also prevents us from using the court effectively.

Since she could not act, one part suited her as well as any other, and so she was the first person to offer Mr. Lincoln a glass of water, holding it up to the box, high above her head, to Miss Harris, who had asked for it.

Says NRLDA's James Wright: `` Since 1958 carriers that move material from the yard to the job site have undergone more radical changes than any of the dealer's other equipment ''.

Since the psychiatric interview, like any other interview, depends on communication, it is significant to note that the therapist in this interview was a man of marked skill and long experience.

( page 33 ) On the other hand, a little later on he says: `` Since 1692 a great but superficial change has wiped out God's beard and the Devil's horns, but the world is still gripped between two diametrically opposed absolutes.

Since " all beings " includes the individual, love and compassion in Buddhism are outside the opposition between self and other.

Since P was never asserted as the only sufficient condition for Q, other factors could account for Q ( while P was false ).

Since then, it has focused on improving relationships with Western countries, cultivating links with other Portuguese-speaking countries, and asserting its own national interests in Central Africa through military and diplomatic intervention.

Since the deciding bodies he had chosen were more concerned with the former, the prizes went to scientists and not to engineers, technicians or other inventors.

Since Fire Temple was at least partially built to conform to the dimensions of the cliff alcove in which it was built, it is neither round in form nor truly subterranean like other structures defined as kivas

Since then, the antiparticles of many other subatomic particles have been created in particle accelerator experiments.

Since the first discovery in 1884, fossils of more than thirty individuals have been recovered, providing scientists with a more detailed knowledge of Albertosaurus anatomy than is available for most other tyrannosaurids.

Since then, other works of his have been translated into English.

Since the implementation of the Statute of Westminster 1931 in each of the Commonwealth realms ( on successive dates from 1931 onwards ), the Act of Settlement cannot be altered in any realm except by that realm's own parliament and, by convention, only with the consent of all the other realms, as it touches on the succession to the shared throne.

Since the Angles took a geographic name, they possibly had other names not based on geography.

Since the later discovery of the electron, an easier to remember, and more durably correct technically although historically false, etymology has been suggested: anode, from the Greek anodos, ' way up ', ' the way ( up ) out of the cell ( or other device ) for electrons '.

Since its video release it has acquired a cult following, along with the other two films in the trilogy.

Since many scientific applications require incubation at temperatures close to human body temperature ( 37 ° C ), agar is more appropriate than other solidifying agents that melt at this temperature, such as gelatin.

Since lead has a lower melting point than the other constituents of the brass, it tends to migrate towards the grain boundaries in the form of globules as it cools from casting.

Since then, Clinton has been assigned a number of other diplomatic missions.

Since the 2002 civil war in Côte d ' Ivoire, relations between it and Burkina Faso have been filled with accusations of Burkinabé support for rebels on one side and claims of mistreatment of Burkinabé workers on the other .< ref > Blaise Campaoré :<< La crise ivoirienne inquiète le Burkina >>, Le Figaro, December 11, 2005 </ ref > Côte d ' Ivoire remains Burkina Faso's largest regional trading partner in spite of their disputes and tens of thousands of Burkinabés continue to work in the Ivory Coast.

Since these two constructions are inverses of each other, we can say that every Boolean ring arises from a Boolean algebra, and vice versa.

Since the focus of his book was calculation, Bede gave instructions for computing the date of Easter and the related time of the Easter Full Moon, for calculating the motion of the Sun and Moon through the zodiac, and for many other calculations related to the calendar.

Since human plague is rare in most parts of the world, there is no need to vaccinate people other than those at particularly high risk of exposure.

( Since the time-span of the nation-state coincides roughly with the separate existence of the United States as an independent entity, it is perhaps natural for Americans to think of the nation as representative of the highest form of order, something permanent and unchanging.

Since that time, Alberta's economic fortunes have largely tracked the price of oil, and increasingly natural gas prices.

Since the flow of a baseball game has natural breaks to it, and normally players act individually rather than performing in clusters, the sport lends itself to easy record-keeping and statistics.

Since 1991, Croatia's death rate has continuously exceeded its birth rate ; the natural growth rate of the population is currently negative.

Since society considers so many rights as natural ( hence the term " right ") rather than man-made, what constitutes a crime also counts as natural, in contrast to laws ( seen as man-made ).

A set S is called countable if there exists an injective function f from S to the natural numbers Since there is an obvious bijection between and it makes no difference whether one considers 0 to be a natural number of not.

Since copper metallurgy was already known to have existed in Europe since 7000 BC, with heavy axes of natural bronze produced in bulk since 5500 BC, and since true bronze, made by deliberately alloying copper with tin had already been used in parts of east-central Europe since 3700 BC, Ötzi's axe came as no surprise to archaeologists.

Since his medium for bringing change was print and debate, it was natural for the origins of the Christadelphian body to be associated with journals and books, namely the Herald of the Kingdom and The Ambassador ( which later became The Christadelphian ).

Since 1983, Iraq has repeatedly called for restoration of Egypt ’ s “ natural role ” among Arab countries.

Since then, ecologists have worked to bridge their understanding of the degradation of the planet's ecosystems with environmental politics, law, restoration, and natural resources management.

Since Euclidean space is a metric space it is also a topological space with the natural topology induced by the metric.

Since 2001, economic growth declined caused by adverse shocks such as a slowdown in the global economy and natural disasters.

Since EtBr stained DNA is not visible in natural light, scientists mix DNA with negatively charged loading buffers before adding the mixture to the gel.

Since real political power belongs to the sole legal party, in certain states under Marxist constitutions of the constitutionally socialist state type inspired by the former Union of Soviet Socialist Republics ( USSR ) and its constitutive Soviet republics, there was no formal office of head of state, but rather the leader of the legislative branch was considered to be the closest common equivalent of a head of state as a natural person.

Since 1983, Iraq has repeatedly called for restoration of Egypt ’ s “ natural role ” among Arab countries.

Since 1999, the Isle of Man has received electricity through the world's longest submarine AC cable, the 90 kV Isle of Man to England Interconnector, as well as from a natural gas power station in Douglas, an oil power station in Peel and a small hydro-electric power station in Sulby Glen.

Since its inception it has broadened to find applications in many other areas, including statistical inference, natural language processing, cryptography, neurobiology, the evolution and function of molecular codes, model selection in ecology, thermal physics, quantum computing, plagiarism detection and other forms of data analysis.

Since definitions of left and right based on the geometry of the natural environment are unwieldy, in practice, the meaning of relative direction words is conveyed through tradition, acculturation, education, and direct reference.

Since counter-clockwise may be defined in terms of up, forward, and right, this experiment unambiguously differentiates left from right using only natural elements: If they were reversed, or the atoms spun clockwise, the radiation would follow the spin axis instead of being opposite to it.

Since Macau has little arable land and few natural resources, it depends on mainland China for most of its food, fresh water, and energy imports.

Since the mid-1980s, the donor community, led by the World Bank and the USAID, has recognized that Madagascar is one of the world's most unusual natural wonders.

Since mining entails removing dirt and rock from its natural location creating large empty pits, rooms and tunnels, cave-ins as well as ground and rock falls are a major concern within mines.

Since the Temple was an enclosed place with no natural light, some means of illumination must have existed.