As these populations declined and the market for whale products grew, American whalers began hunting sperm whales. The sperm ... Here they were found by the heavily armed flagship of the London whaling fleet; a two-hour battle ensued, resulting in defeat ... Sources: same as counts by year, above. Whaling in Australia Whaling in Canada Whaling in the Netherlands Whaling in New ... A Review of Old Basque Whaling and its Effect on the Right Whales (Eubalaena glacialis) of the North Atlantic. Reports of the ...

They derive from immature germ cells called spermatogonia. They are found in the testis, in a structure known as the ... In the following table, ploidy, copy number and chromosome/chromatid counts listed are for a single cell, generally prior to ... Normally, primary cilia will develop from one centriole in the G0/G1 phase and are not affected by microtubule targeting drugs ... In hermaphrodite C. elegans, sperm production occurs first and is then stored in the spermatheca. Once the eggs are formed, ...

Genes in this region have been found to support the growth and maturity of sperm and are critical for efficient progression of ... AZFc deletions have been associated with drastic reduction in sperm count, and there are subsets of men with AZFc ... Of the 15% of couples who are affected by infertility, 50% of those cases are due to the male partner. 15-30% of male factor ... Common phenotypic manifestations of deletions in this region are azoospermia and Sertoli cell-only syndrome. Men with a ...

This effect of PCI is dose dependent as 0.04MicroM PCI inhibited 50% binding and penetration ability. PCI communicated by ... The in vivo half time degradation of protein C inhibitor in plasma is found to be 23 hours, whereas the half time degradation ... Protein C inhibitor has a role in reproduction as it has ability to inhibit the sperm protease acrosin. Large amounts of ... Suzuki K, Hayashi T (2000). "cis-elements required for expression of human protein C inhibitor gene in HepG2 cells and its ...

... refers to the total number of chromosomes found in a gamete (a sperm or egg cell produced by meiosis in preparation for sexual ... Sprague G.F.; Russell W.A.; Penny L.H. (1960). "Mutations affecting quantitative traits in the selfed progeny of double ... This total number of individual chromosomes (counting all complete sets) is called the chromosome number or chromosome ... and an organism may be called haploid if its body cells (somatic cells) have one set of chromosomes per cell. By this ...

... have been found to be associated with delay of maturation, an effect that may be compounded by dietary inadequacy. Most of ... The main target cells of LH are the Leydig cells of testes and the theca cells of the ovaries. LH secretion changes more ... A male's testicles also begin making sperm. The release of semen, which contains sperm and other fluids, is called ejaculation ... when the hairs are too numerous to count and appear on the pubic mound as well. By stage 4, the pubic hairs densely fill the " ...

Beta cell One of the cell types found in the Islets of Langerhans in the pancreas. They are the source of insulin, and contain ... Unlike the Somogyi effect, it is not a result of an insulin reaction. People who have high levels of blood glucose in the ... Thus, protein is not normally used for fuel, and so should not be counted as a food calorie in normal situations; nevertheless ... but in humans processed only in the liver and in sperm, the only tissues which have the required enzymes. Ingested carbohydrate ...

Annuals and other irregular publications sometimes publish no items in a particular year, affecting the count. The impact ... They founded a new corporation, Clarivate, which is now the publisher of the JCR. In any given year, the two-year journal ... Rossner M, Van Epps H, Hill E (December 2007). "Show me the data". The Journal of Cell Biology. 179 (6): 1091-2. doi:10.1083/ ... Dyer C (February 1997). "Widow can be inseminated with husband's sperm". BMJ. 314 (7079): 461. doi:10.1136/bmj.314.7079.461d. ...

... independent cell genetically distinct from the prior egg and sperm exists) or when implantation occurs (when the new set of ... The age of gametes at the time of fertilization has been shown to have no effect on miscarriage rates in most cases, but is a ... By 1966, a more precise meaning of the word "conception" could be found in common-use dictionaries: the formation of a viable ... Finally, the standard historical method of counting the duration of pregnancy begins from the last menstruation and this ...

They are found in some lizards, where they are mostly made of cartilage, as well as crocodiles and the tuatara, and are not ... The hair cells are unspecialised, innervated by both afferent and efferent nerve fibres, and respond only to low frequencies. ... This process is sometimes referred to as a "cloacal kiss". The sperm is then transferred into the female, much like the mating ... DNA methylation is a very common modification in animals and the distribution of CpG sites within genomes affects this ...

June 14: Scientists report the creation of the first synthetic human embryo from stem cells, without the need for sperm or egg ... The league found stability during the 2010s, and showed surprising parity between the teams, with all nine teams appearing in ... Derek Chauvin, the officer responsible for Floyd's murder, would ultimately be convicted on two counts of murder and one of ... December 13 - 27 EU member states sign the Treaty of Lisbon, with the treaty coming into effect on December 1, 2009. 2007-2008 ...

As a result, a sperm or egg cell is produced with an extra copy of chromosome 21; this cell thus has 24 chromosomes. When ... Syndromes affecting the gastrointestinal tract, Syndromes affecting the heart, Syndromes affecting the nervous system, ... It occurs most often in those older than nine years or having a white blood cell count greater than 50,000 per microliter and ... Kobato Kai founded in Japan in 1964, the National Down Syndrome Congress founded in the United States in 1973 by Kathryn McGee ...

... and male partners may also consider cessation of smoking due to effects associated with weaker sperm counts and damage to sperm ... DNA fragmentation can happen spontaneously in cells that undergo programmed cell death (apoptosis) where DNA is broken apart by ... They effect implantation rates by altering the shape and cytokine composition of the uterus. Removal of submucosal fibroids has ... Fibroids are benign tumours found in the smooth muscle of the uterus, they are often asymptomatic but can cause pelvic pain. ...

Some individuals avoid genetic testing out of fear it will affect their ability to purchase insurance or find a job. Health ... Early forms of genetic testing which began in the 1950s involved counting the number of chromosomes per cell. Deviations from ... Eggs from the woman and sperm from the man are removed and fertilized outside the body to create multiple embryos. The embryos ... Cell-free fetal DNA (cffDNA) testing - a non-invasive (for the fetus) test. It is performed on a sample of venous blood from ...

Sperm motility and viability were found to be disrupted shortly after direct contact between sperm and those lubricants or in ... Agarwal, A; Malvezzi, H; Sharma, R. (2013). "Effect of an isotonic lubricant on sperm collection and sperm quality". Fertil. ... "Study finds most lubricants damage rectal cells and some increase HIV activity". aidsmap. Archived from the original on 16 May ... Some warming lubricants have been shown to have an osmolality count more than 30 times the body's own fluid. Increased herpes ...

... species of xenophyophore have been found to have unusually high concentrations of radioactive isotopes within their cells, ... Seeing little effect due to the Permo-Triassic or K-Pg extinctions, the group diversified through time. Secondarily unilocular ... This count may, however, represent only a fraction of actual diversity, since many genetically distinct species may be ... Gametes are not differentiated into sperm and egg, and any two gametes from a species can generally fertilize each other. When ...

... and tobacco cells". Plant and Cell Physiology. 43 (8): 903-910. doi:10.1093/pcp/pcf108. PMID 12198193. Northrup, Cynthia Clark ... Large gas finds have also been made, with Qatar and Iran sharing a giant field across the territorial median line (North Field ... Most pollution is from ships; land generated pollution counts as the second most common source of pollution. Along the ... Their simple grass diet is negatively affected by new developments along the Persian Gulf coastline, particularly the ...

Matilda effect Matthew effect Multiple discovery Priority disputes Stigler's law of eponymy Synchronicity Timeline of historic ... Neptune was found at the predicted moment and position. Bessemer Process - The process of removing impurities from steel on an ... Hertwig and Hermann Fol independently described the entry of sperm into the egg and the subsequent fusion of the egg and sperm ... Count Rumford; and by Johan Wilcke, who published his discovery first (apparently not later than 1796, when he died). In a ...

Szalai, Jennifer (24 October 2022). "Siddhartha Mukherjee Finds Medical Mystery - and Metaphor - in the Tiny Cell". The New ... But, if epigenetic information can be transmitted through sperm and eggs, an organism would seem to have a direct conduit to ... they would not be counted as Lamarckian as they are not acquired or adaptive. Mukherjee did not say that epigenetic processes ... it seems highly unlikely that the effect will persist for many generations of will have long-term consequences for human ...

Pollution events may affect fish species and fish age classes in different ways. If it is a cold-related fish kill, juvenile ... The counts given below are all estimates. They tend to be underestimates, and may omit, for example, small fish, those removed ... "Hundreds of thousands" of fish were found dead in Texas in June 2023 due to warming water. Underwater explosions can lead to ... Associated with these photosynthetic rhythms there is a matching pH rhythm as bicarbonate ion is metabolised by plant cells. ...

At this point, the new one is wrinkled and so soft that the animal cannot support itself and finds it very difficult to move, ... Biomineralization generally affects the exocuticle and the outer part of the endocuticle. Two recent hypotheses about the ... The cuticle may have setae (bristles) growing from special cells in the epidermis. Setae are as varied in form and function as ... This is due to the census modeling assumptions projected onto other regions in order to scale up from counts at specific ...

... clavipes males produce a limited amount of sperm over their lifetimes. Thus, sometimes a male will only have enough sperm for a ... The main web of a mature female can range from 1-2 meters in diameter, not counting the main filaments that anchor the web ... Seasonally, it may range more widely; in the summer, it may be found as far north as lower Eastern Canada. Beyond 40° N ... for an experiment in the ISS to test the effect of zero gravity on web-related behaviour. The silk of T. clavipes has recently ...

This is reflected in humans, as the sperm count in ejaculations is decreased if copulation occurs more than three to five times ... A series of muscular contractions delivers semen, containing male gametes known as sperm cells or spermatozoa, from the penis. ... Harcourt, A. H.; Purvis, A.; Liles, L. (1995). "Sperm competition: Mating system, not breeding season, affects testes size of ... The penile raphe is the visible ridge between the lateral halves of the penis, found on the ventral or underside of the penis, ...

... evolved partly as a way for the queen to obtain enough sperm to fertilize her eggs. A positive correlation has been found ... Usually 30-50 but sometimes even hundreds of males can be counted near virgin queen colonies in lek-like groups. The males come ... This conflict may explain why Trigona spinipes, unlike honeybees, lay male and female eggs in identical cells. This makes it ... Lisboa, L. C. O. (2005). "Effect of Larval Food Amount on Ovariole Development in Queens of Trigona spinipes (Hymenoptera, ...

Germ line cells develop into eggs and sperm and the associated inherited material can be passed down to future generations. As ... Polysomy is found in many diseases, including Down syndrome in humans where affected individuals possess three copies (trisomy ... chromosome shows unique light and dark bands after they are denatured with trypsin and polysomies can be detected by counting ... During egg or sperm development the 21st chromosome does not separate during either the egg or sperm development. The result is ...

Semen can be tested for sperm count, sperm motility, sperm morphology, pH, volume, fructose content, and acrosome activity. ... The semen in ejaculate contains sex cells called sperm. After intercourse, sperm travel to the egg through the female ... General health affects fertility, and STI testing is an important related field. Healthy women are fertile from puberty until ... Fertility testing is the process by which fertility is assessed, both generally and also to find the "fertile window" in the ...

Sponges are similar to other animals in that they are multicellular, heterotrophic, lack cell walls and produce sperm cells. ... They are found in every part of the earth's lithosphere, from the top of mountains to the bottom of oceanic trenches. By count ... Human activities affect marine life and marine habitats through overfishing, pollution, acidification and the introduction of ... Viruses are found wherever there is life and have probably existed since living cells first evolved. The origin of viruses is ...

Acceptable habitats for gulper populations are found globally, wherever temperate and tropical waters are found. The gulper ... which for males is when gonads are enlarged and filled with sperm, and sperm ducts are tightly coiled. For females, stage three ... Once fertilized, females can hold up to 6 mature egg cells, or oocytes, in their body at a time. The length of time these egg ... Bycatch is often not treated as a serious issue until a species has declined to a point where small bycatch has a large effect ...

... and the number of genes affected on the inactivated X chromosome varies between cells: in fibroblast cells up about 25% of ... Joe Hin Tjio working in Albert Levan's lab found the chromosome count to be 46 using new techniques available at the time: ... sperm and egg cells) which are haploid with 23 unpaired chromosomes, and this ploidy is not shown in these karyograms. The ... Both types of abnormalities can occur in gametes and therefore will be present in all cells of an affected person's body, or ...

It also stated that Jackson impregnated Rowe artificially with his own sperm cells, a "foolproof" method of insemination. ... The singer was subsequently indicted on four counts of molesting a minor, four counts of intoxicating a minor, one count of ... Jackson found out about the story from a crying fan. The musician reassured the girl that the tale was untrue and condemned it ... Rowe treated Jackson's vitiligo, which he had been diagnosed with in 1986 and which would affect his physical appearance for ...

On November 22, 2010, the jury found Guandique guilty of both remaining counts of first-degree murder. After the trial, a juror ... In September 2008, investigators searched Guandique's federal prison cell in California and found a photo of Levy that he had ... FBI biologist Alan Giusti testified that semen found on underwear from Levy's apartment contained sperm matching Condit's DNA ... In 2002, D.C. newspaper Roll Call first reported Ingmar Guandique's possible connection to the case, with little effect on the ...

If apoptosis is not activated efficiently, overpopulation of germ cells or escape of defective germ cells will lead to sperm ... Higher objectivity and accuracy: Conventional sperm analysis includes sperm count, morphology and motility in determination of ... "A systematic review and meta-analysis to determine the effect of sperm DNA damage on IVF and ICSI outcome". Asian Journal of ... Such finding asserts the DFI determined by SCSA to be a strong independent predictor of in vivo pregnancy and a clinically ...

Although morphine-like substances have been found in leeches, they have been found in the neural tissues, not the salivary ... The sperm is liberated and passes to the ovisacs, either through the coelomic channels or interstitially through specialist " ... A leech's nervous system is formed of a few large nerve cells. Their large size makes leeches convenient as model organisms for ... are counted). Of these segments, the first five are designated as the head and include the anterior brain, several ocelli ( ...

1972). However, no effect was obtained on sperm count and in vitro sperm penetration. Kuhl H (September 1990). " ... Certain progestins have been found to stimulate the proliferation of MCF-7 breast cancer cells in vitro, an action that is ... 265) found that oral progesterone at 1000 mg/day for 87 days did not have a significant effect on urinary gonadotropin ... Androgenic progestins have been found to antagonize to some degree the effect of estrogens on coagulation. First-generation ...

They use palpal inflations to determine sperm count and if the female deems sperm count too low she will consume the male. In ... Also smaller males may be favored because they hatch and mature faster, giving them a direct advantage in finding and mating ... Research has shown that in the Nephilengys livida species, female aggressiveness had no effect on the likelihood of her ... cell 42, 32-6 (2010) Wilder, S. M., A. L. Rypstra, and M. A. Elgar. 2009. The Importance of Ecological and Phylogenetic ...

The presence of sperm on a vaginal smear is also a reliable indicator of mating. The average gestation period is 20 days. A ... Murine astrovirus was found in nine mice strains, including NSG, NOD-SCID, NSG-3GS, C57BL6-Timp-3−/−, uPA-NOG, B6J, ICR, Bash2 ... The current count of primary coding genes in the laboratory mouse is 23,139. compared to an estimated 20,774 in humans. Various ... It has a duration of effect of about 30 minutes. Approved procedures for euthanasia of laboratory mice include compressed CO2 ...

Fossil sperm whales differ from modern sperm whales in tooth count and the shape of the face and jaws. For example, Scaldicetus ... 50-minute dive was found with two dogfish (Scymnodon sp.), usually found at the sea floor, in its belly. The sperm whale has ... Another view holds that exploitation by overwhaling had virtually no effect on the size of the bull sperm whales, and their ... The blood has a high density of red blood cells, which contain oxygen-carrying haemoglobin. The oxygenated blood can be ...

"Wasp study finds sting in the tail for cancer cells". Biophysical Journal. The Guardian. September 2015. Retrieved September 3 ... Parasitism affects worker size in the Neotropical swarm-founding social wasp, Polybia paulista (Hymenoptera, Vespidae). ... Once the larva emerge, a final comb is built around 12 days; with a final comb count of 5-6. A colony size range throughout the ... The queens have the ability to store sperm in the spermatheca, and use it when her eggs need to be fertilized. Envelopes are ...

AIDS is defined by either a CD4 cell count of less than 200 cells per microliter (which is indicative of severe ... Males with HIV appear to have decreased semen volume and sperm motility, which decreases their fertility. ART may also affect ... In Asia, it was found that half the women living with HIV were advised not to have children and as many as 42% report being ... CD4 counts less than 300 cells per millimeter cubed, or a high viral load. Otherwise, CD4 count does not need to be monitored ...

... potentially putting sperm count at risk. The study, which included roughly two dozen men between the ages of 21 and 35, found ... Possible effect on fertility A study by State University of New York researchers found that heat generated from laptops can ... indicating the state of the cells.[citation needed] Historically, DC connectors, typically cylindrical/barrel-shaped coaxial ... One study found that a laptop is three times more likely to break during the first year of use than a desktop. To maintain a ...

27 July Neonicotinoids, the world's most widely used insecticide, are found to reduce bee sperm counts by almost 40%, as well ... clinical trial finds". EurekAlert!. 2 June 2016. Retrieved 3 June 2016. "Stanford medical trial found stem cells injected into ... which is found to affect the lateral orbitofrontal cortex, implicated in non-reward. 19 October - ExoMars Trace Gas Orbiter ... "Stem cell study finds mechanism that controls skin and hair color". Science Daily. 28 April 2016. Retrieved 29 April 2016. "Are ...

... sperm cells), which would compromise the effectiveness of the method. However, several small studies have failed to find any ... However, across a wide range of observed values, total sperm count (as with other identified semen and sperm characteristics) ... Like many methods of birth control, reliable effect is achieved only by correct and consistent use. Observed failure rates of ... included a male partner with a total sperm count (per ejaculate) of 23 million sperm or less. ...

Very few cases have been found in which the deletion has been present in mosaic form (where some of the cells have deletion on ... She discovered it in a family where multiple people had the disorder, and found that the affected children had unbalanced ... this is a random event that occurred during the formation of the sperm or the egg or during the cell division in the embryonic ... Medication that interferes with platelet count should be avoided, and oral contraceptive therapy may be considered for women ...

The same team applied the Dsup protein to human cultured cells and found that it suppressed X-ray damage to the human cells by ... Also, it was found that the space vacuum did not have a significant effect on egg-laying in either R. coronifer or M. ... Mating occurs during the molt with the eggs being laid inside the shed cuticle of the female and then covered with sperm. A few ... not counting their time in dormant states. Scientists have reported tardigrades in hot springs, on top of the Himalayas (6,000 ...

AAS also affect the number of cells that develop into fat-storage cells, by favouring cellular differentiation into muscle ... Men may develop an enlargement of breast tissue, known as gynecomastia, testicular atrophy, and a reduced sperm count.[citation ... a study by insurer Blue Cross Blue Shield found."(Eisenhauer) Another study found that non-medical use of AAS among college ... Water-soluble peptide hormones cannot penetrate the fatty cell membrane and only indirectly affect the nucleus of target cells ...

A vascular plant begins from a single celled zygote, formed by fertilisation of an egg cell by a sperm cell. From that point, ... Structures such as flowers and fruits are only found in the angiosperms; sori are only found in ferns; and seed cones are only ... The way in which new structures mature as they are produced may be affected by the point in the plant's life when they begin to ... Plant biologists use morphological characters of plants which can be compared, measured, counted and described to assess the ...