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82-495: The series begins with Triplanetary , beginning two billion years before the present time and continuing into the near future. The universe has no life-forms aside from the ancient Arisians, and few planets besides the Arisians' native world. The peaceful Arisians have foregone physical skills in order to develop contemplative mental power. The underlying assumption for this series, based on theories of stellar evolution extant at

164-525: A Lensman. The novel's alternate version, The Pursuit of the Pankera , has an extended version of the Lensman sequence. Notes Further reading Contemplation In a religious context, the practice of contemplation seeks a direct awareness of the divine which transcends the intellect, often in accordance with religious practices such as meditation or prayer . The word contemplation

246-501: A brief touch is extremely painful. Using the Lens as a means to test mental qualities and identify individuals able to help him, Virgil Samms visits races and species in other star systems, recruiting the best of them and forming the nucleus of a Galactic Patrol. Their opponents are discovered to be a widespread civilization based on dominance hierarchies and using organized crime to assume control of new planets. The series contains some of

328-664: A family history of fraternal twins have a higher chance of producing fraternal twins themselves, as there is a genetically linked tendency to hyper- ovulate . There is no known genetic link for identical twinning. Other factors that increase the odds of having fraternal twins include maternal age, fertility drugs and other fertility treatments, nutrition, and prior births. Some women intentionally turn to fertility drugs in order to conceive twins. The vast majority of twins are either dizygotic (fraternal) or monozygotic (identical). In humans dizygotic twins occur more often than monozygotic twins. Less common variants are discussed further down

410-497: A greater chance of dizygotic multiple births. In the United States it has been estimated that by 2011 36% of twin births resulted from conception by assisted reproductive technology . The risk of twin birth can vary depending on what types of fertility treatments are used. With in vitro fertilisation (IVF), this is primarily due to the insertion of multiple embryos into the uterus. Ovarian hyperstimulation without IVF has

492-506: A more likely explanation. A high twinning rate has also been observed in other places of the world, including: The widespread use of fertility drugs causing hyperovulation (stimulated release of multiple eggs by the mother) has caused what some call an "epidemic of multiple births ". In 2001, for the first time ever in the US , the twinning rate exceeded 3% of all births. Nevertheless, the rate of monozygotic twins remains at about 1 in 333 across

574-460: A pair of monozygotic twins reproduces with another pair or with the same person), rather than first cousins. Identical twins do not have the same fingerprints however, because even within the confines of the womb, the fetuses touch different parts of their environment, giving rise to small variations in their corresponding prints and thus making them unique. Monozygotic twins always have the same genotype . Normally due to an environmental factor or

656-545: A rate of about 3 in every 1000 deliveries worldwide. The likelihood of a single fertilization resulting in monozygotic twins is uniformly distributed in all populations around the world. This is in marked contrast to dizygotic twinning, which ranges from about six per thousand births in Japan (almost similar to the rate of identical twins, which is around 4–5) to 15 and more per thousand in some parts of India and up to over 20 in some Central African countries. The exact cause for

738-428: A separate egg and each egg is fertilized by its own sperm cell. Since identical twins develop from one zygote, they will share the same sex, while fraternal twins may or may not. In very rare cases fraternal (and semi- or half-identical ) twins can have the same mother and different fathers ( heteropaternal superfecundation ). In contrast, a fetus that develops alone in the womb (the much more common case in humans)

820-406: A separate fetus, rather than by the embryo splitting while hatching from the zona pellucida (the gelatinous protective coating around the blastocyst). Monozygotic twins may also be created artificially by embryo splitting. It can be used as an expansion of in vitro fertilization (IVF) to increase the number of available embryos for embryo transfer . Monozygotic twinning occurs in birthing at

902-406: A single individual realizes the limits of his Arisian training and perceives the need to return to seek "second stage" training, which, it is later shown, to include the ability to slay by mental force alone; a "sense of perception" which allows seeing by direct awareness without the use of the visual sense; the ability to control minds undetectably, including the ability to alter memories untraceably;

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984-541: A study in 2012 found that it is possible for a polar body to result in a healthy fetus. In 2003, a study argued that many cases of triploidy arise from sesquizygotic (semi-identical) twinning which happens when a single egg is fertilized by two sperm and splits the three sets of chromosomes into two separate cell sets. The degree of separation of the twins in utero depends on if and when they split into two zygotes. Dizygotic twins were always two zygotes. Monozygotic twins split into two zygotes at some time very early in

1066-478: A very high risk of multiple birth. Reversal of anovulation with clomifene (trade names including Clomid ) has a relatively less but yet significant risk of multiple pregnancy. A 15-year German study of 8,220 vaginally delivered twins (that is, 4,110 pregnancies) in Hesse yielded a mean delivery time interval of 13.5 minutes. The delivery interval between the twins was measured as follows: The study stated that

1148-700: Is a Japanese anime television series based on the Lensman novels. The 25-episode series aired from October 6, 1984 to August 8, 1985 in Japan. Both the 1984 long-running theatrical animation and the animated TV series were adapted into manga . The movie's adaptation was created by Moribi Murano and divided into three volumes. The TV series adaptation by Mitsuru Miura was serialized in Weekly Shōnen Magazine and then reprinted in three tankōbon pocket volumes. No English translation of these two manga has been published so far. Initially, Eternity 's Lensman comics run consisted almost entirely of adaptations of

1230-450: Is based on the abundance of contemplation ( contemplari et contemplata aliis tradere ) ( ST , III, Q. 40, A. 1, Ad 2). In Islamic tradition, it is said that Muhammad would go into the desert, climb a mountain known as Mount Hira , and seclude himself from the world. While on the mountain, he would contemplate life and its meaning. Baha'u'llah and Abdu'l-Baha wrote about contemplation and meditation in regards to reflecting on beauty,

1312-411: Is called a singleton , and the general term for one offspring of a multiple birth is a multiple . Unrelated look-alikes whose resemblance parallels that of twins are referred to as doppelgänger . The human twin birth rate in the United States rose 76% from 1980 through 2009, from 9.4 to 16.7 twin sets (18.8 to 33.3 twins) per 1,000 births. The Yoruba people have the highest rate of twinning in

1394-621: Is derived from the Latin word contemplatio , ultimately from the Latin word templum , a piece of ground consecrated for the taking of auspices, or a building for worship. The latter either derives from the Proto-Indo-European root *tem- ("to cut"), on notion of "place reserved or cut out", or from the root * temp - ("to stretch, string"), thus referring to a cleared (measured) space in front of an altar. The Latin word contemplatio

1476-446: Is fertilized to form one zygote (hence, "monozygotic") which then divides into two separate embryos . The chances of having identical twins is relatively rare – around 3 or 4 in every 1,000 births. Regarding spontaneous or natural monozygotic twinning, a 2007 theory related to in vitro fertilization (IVF) proposes that monozygotic twins may be formed when a blastocyst contains two inner cell masses (ICM), each of which will lead to

1558-557: Is known as theoria. The process of Theosis which leads to that state of union with God known as theoria is practiced in the ascetic tradition of Hesychasm . Hesychasm is to reconcile the heart and the mind into one thing (see nous ). Contemplation in Eastern Orthodoxy is expressed in degrees as those covered in St John Climacus ' Ladder of Divine Ascent . The process of changing from the old man of sin into

1640-414: Is suggesting the topics for discussion." In Catholic Christianity, contemplation is given importance. The Catholic Church's "model theologian", St. Thomas Aquinas wrote: "It is requisite for the good of the human community that there should be persons who devote themselves to the life of contemplation." ( Sentences ) One of his disciples, Josef Pieper commented: "For it is contemplation which preserves in

1722-419: Is the most common type of twin. Dizygotic twins, like any other siblings, will practically always have different sequences on each chromosome, due to chromosomal crossover during meiosis . Dizygotic twins share on average 50 percent of each other's genes, the same as siblings that are conceived and born at different times. Like any other siblings , dizygotic twins may look similar , particularly as they are

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1804-590: The GURPS roleplaying system was produced in 1993 by Steve Jackson Games . With Smith's knowledge, the parody " Backstage Lensman " was written by Randall Garrett in 1949. Garrett also referred to the Lenses in his Lord Darcy stories, in which similar lenses are the badges of the King's Messengers, invented by the wizard "Sir Edward Elmer". Harry Harrison wrote the humorous and comprehensive parody Star Smashers of

1886-670: The Lensman TV episodes, but they also began writing additional material. In 2008, Ron Howard's Imagine Entertainment and Universal Pictures began negotiations with the author's estate for rights to film the Lensman series. The negotiations were for an 18-month renewable option. At the WonderCon convention in San Francisco in February, J. Michael Straczynski , the creator of Babylon 5 , confirmed that Howard had acquired

1968-545: The Triplanetary name) which is transitional to the novel First Lensman . It details some of the interactions and natures of two distinct breeding lines, one bearing some variant of the name "Kinnison", and another distinguished by possessing "red-bronze-auburn hair and gold-flecked, tawny eyes". The two lines do not co-mingle until the Arisian breeding plan brings them together. The second book, First Lensman , concerns

2050-576: The Vortex Blaster stories, including "Storm Cloud on Deka" (June 1942) and "The Vortex Blaster Makes War" (October 1942) for Comet Stories , but the magazine closed after publishing Vortex Blaster (July 1941) and the rest were first published in Astonishing Stories . These stories and later additions were collected and published by Gnome Press as The Vortex Blaster in 1960 and later reprinted by Pyramid Books as Masters of

2132-683: The Yoruba to 10% for Linha São Pedro, a tiny Brazilian settlement which belongs to the city of Cândido Godói . In Cândido Godói, one in five pregnancies has resulted in twins. The Argentine historian Jorge Camarasa has put forward the theory that experiments of the Nazi doctor Josef Mengele could be responsible for the high ratio of twins in the area. His theory was rejected by Brazilian scientists who had studied twins living in Linha São Pedro; they suggested genetic factors within that community as

2214-462: The blastocysts have fused. Monochorionic twins share the same placenta , and thus have a risk of twin-to-twin transfusion syndrome . Monoamniotic twins are always monozygotic . The survival rate for monoamniotic twins is somewhere between 50% and 60%. Monoamniotic twins, as with diamniotic monochorionic twins, have a risk of twin-to-twin transfusion syndrome . Also, the two umbilical cords have an increased chance of being tangled around

2296-569: The Arisians and to develop their own techniques and abilities "about which we [the Arisians] know nothing". The key discovery comes when they try mind-merging. They discover they can merge their minds to effectively form one mental entity called the Unit . The Arisians describe this as the "most nearly perfect creation the universe has ever seen" and state that they, who created it, are themselves almost entirely ignorant of its powers. The Children of

2378-536: The Children of the Lens uninhibited in their future as the new guardians of Civilization. Originally, the series consisted of the four novels Galactic Patrol , Gray Lensman , Second Stage Lensmen , and Children of the Lens , published between 1937 and 1948 in the magazine Astounding Stories . In 1948, at the suggestion of Lloyd Arthur Eshbach (publisher of the original editions of the Lensman books as part of

2460-467: The Fantasy Press imprint), Smith rewrote his 1934 story Triplanetary to fit in with the Lensman series. First Lensman was written in 1950 to act as a link between Triplanetary and Galactic Patrol and finally, in the years up to 1954, Smith revised the rest of the series to remove inconsistencies between the original Lensman chronology and Triplanetary . Except for the two prequel novels,

2542-686: The Galactic Patrol. That tool is the Lens . The Arisians further promise him that no entity unworthy of the Lens will ever be permitted to wear it, but that he and his successors will have to discover for themselves most of its abilities. The Lens gives its wearer a variety of mental capabilities, including those needed to enforce the law on alien planets, and to bridge the communication gap between different life-forms. It can provide mind-reading and telepathic abilities. It cannot be worn by anyone other than its owner, will kill any other wearer, and even

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2624-717: The Galaxy Rangers in 1973. In the DC Comics universe, the Green Lantern Corps bears many parallels to the Lensmen, though the original editor (Julius Schwartz) denied any connection. Later writers would add characters that directly referenced the Lensman series, such as the extraterrestrial Green Lanterns Arisia and Eddore . In Robert A. Heinlein's The Number of the Beast , the protagonists encounter

2706-554: The Kingdom of God, science, and the arts. Abdu'l-Baha stated that "the sign of the intellect is contemplation and the sign of contemplation is silence... he cannot both speak and meditate". Twin#Fraternal Twins are two offspring produced by the same pregnancy . Twins can be either monozygotic ('identical'), meaning that they develop from one zygote , which splits and forms two embryos , or dizygotic ('non-identical' or 'fraternal'), meaning that each twin develops from

2788-435: The Lens and refer to events and characters in Vortex Blaster . Lensman: Secret of the Lens ( SF新世紀レンズマン , SF Shinseiki Renzuman ) is a 1984 Japanese animated film based on the Lensman novels. The movie is a loose adaptation of the series. It was dubbed by Harmony Gold in 1988. This was re-dubbed by Streamline Pictures in 1990 with most of the same voice actors. Galactic Patrol Lensman ( GALACTIC PATROL レンズマン )

2870-494: The Lens, together with the mental power of unknown millions of Lensmen of the Galactic Patrol, constitute the Arisians' intended means to destroy the Eddorians and make the universe safe for Civilization. The Galactic Patrol, summoned to work together in this way for the first time, contains billions of beings who in total can generate immense mental force. The Arisians add their own tremendous mental force to this. The Unit focuses

2952-562: The Vortex in 1968. They are set in the time between Second Stage Lensman and Children of the Lens . In "Larger Than Life", a tribute to Smith written by Robert A. Heinlein and included in Expanded Universe , Heinlein writes: The Lensman [series] was left unfinished. There was to have been at least a seventh volume. As always, Doc had worked it out in great detail, but never (so far as I know) wrote it down ... because it

3034-440: The ability to perfectly split attention in order to perform multiple tasks with simultaneous focus on each; and the ability to better integrate their minds for superior thinking. As the breeding program nears its conclusion, humans are selected as the best choice; at the same time, the breeding programs of the other three planets are terminated, and their penultimates never meet their planned mates. Kimball Kinnison meets and marries

3116-532: The accumulated power onto one tiny point of the Eddorians' shields. The Eddorian shields are destroyed along with the Eddorian High Council. It is stated that this was the only thing the Arisians could not have done by themselves, but without its accomplishment the Eddorians would have eventually turned the tide and beaten the Arisians. The Arisians remove themselves from the Cosmos in order to leave

3198-514: The article. Fraternal twins can be any of the following: Among non-twin births, male singletons are slightly (about five percent) more common than female singletons. The rates for singletons vary slightly by country. For example, the sex ratio of birth in the US is 1.05 males/female, while it is 1.07 males/female in Italy. However, males are also more susceptible than females to die in utero , and since

3280-572: The awareness of God as a living reality. Meditation, on the other hand, for many centuries in the Western Church, referred to more cognitively active exercises, such as visualizations of Biblical scenes as in the Ignatian exercises or lectio divina in which the practitioner "listens to the text of the Bible with the 'ear of the heart', as if he or she is in conversation with God, and God

3362-473: The babies. Because of this, there is an increased chance that the newborns may be miscarried or suffer from cerebral palsy due to lack of oxygen. When the division of the developing zygote into 2 embryos occurs, 99% of the time it is within 8 days of fertilization. Mortality is highest for conjoined twins due to the many complications resulting from shared organs. A 2006 study has found that insulin-like growth factor present in dairy products may increase

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3444-450: The chance of dizygotic twinning. Specifically, the study found that vegan mothers (who exclude dairy from their diets) are one-fifth as likely to have twins as vegetarian or omnivore mothers, and concluded that "Genotypes favoring elevated IGF and diets including dairy products, especially in areas where growth hormone is given to cattle, appear to enhance the chances of multiple pregnancies due to ovarian stimulation." From 1980 to 1997,

3526-406: The deactivation of different X chromosomes in female monozygotic twins, and in some extremely rare cases, due to aneuploidy , twins may express different sexual phenotypes , normally from an XXY Klinefelter syndrome zygote splitting unevenly. Monozygotic twins, although genetically very similar, are not genetically exactly the same. The DNA in white blood cells of 66 pairs of monozygotic twins

3608-413: The death rate in utero is higher for twins, it leads to female twins being more common than male twins. Zygosity is the degree of identity in the genome of twins. Dizygotic ( DZ ) or fraternal twins (also referred to as "non-identical twins", "dissimilar twins", "biovular twins", and, informally in the case of females, "sororal twins") usually occur when two fertilized eggs are implanted in

3690-399: The development of life upon some of them. Dominance over these life forms would offer the Eddorians an opportunity to satisfy their lust for power and control. Although the Eddorians have developed mental powers almost equal to those of the Arisians, they rely instead for the most part on physical power, which has come to be exercised on their behalf by a hierarchy of underling races. They see

3772-408: The differences detected in this study would have occurred during embryonic cell-division (after the point of fertilization). If they occur early in fetal development, they will be present in a very large proportion of body cells. Another cause of difference between monozygotic twins is epigenetic modification , caused by differing environmental influences throughout their lives. Epigenetics refers to

3854-556: The early formation of the Galactic Patrol and the first Lens, given to First Lensman Virgil Samms of "Tellus" (Earth). Samms and Roderick Kinnison are members of the two breeding lines and they are both natural leaders, intelligent, forceful, and capable. The Arisians make it known that, if, Samms, the head of the Triplanetary Service, visits the Arisian planetary system he will be given the tool he needs to build

3936-405: The early stages of embryonic development. A 1981 study of a deceased XXX twin fetus without a heart showed that although its fetal development suggested that it was an identical twin, as it shared a placenta with its healthy twin, tests revealed that it was probably a polar body twin. The authors were unable to predict whether a healthy fetus could result from a polar body twinning. However,

4018-687: The epigenetic difference of three-year-old twins. Twins who had spent their lives apart (such as those adopted by two different sets of parents at birth) had the greatest difference. However, certain characteristics become more alike as twins age, such as IQ and personality. In January 2021, new research from a team of researchers in Iceland was published in the journal Nature Genetics suggesting that identical twins may not be quite as identical as previously thought. The four-year study of monozygotic (identical) twins and their extended families revealed that these twins have genetic differences that begin in

4100-480: The four planets: Earth (Tellus), Velantia III, Rigel IV, and Palain VII, in the hope of creating a race that is capable of destroying the Eddorians. Triplanetary incorporates the early history of that breeding program on Earth, illustrated with the lives of several warriors and soldiers, from ancient times to the discovery of the first interstellar space drive. It adds an additional short novel (originally published with

4182-480: The globe. In a study on the maternity records of 5750 Hausa women living in the Savannah zone of Nigeria , there were 40 twins and 2 triplets per 1000 births. Twenty-six percent of twins were monozygotic. The incidence of multiple births, which was about five times higher than that observed in any western population, was significantly lower than that of other ethnic groups, who live in the hot and humid climate of

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4264-755: The highest contemplation was to experience the vision of God, the Monad or the One. Plotinus describes this experience in his works the Enneads . According to his student Porphyry, Plotinus stated that he had this experience of God four times. Plotinus wrote about his experience in Enneads 6.9. A number of sources have described the importance of contemplation in Jewish traditions, especially in Jewish meditation . Contemplation

4346-400: The largest-scale space battles ever written. Entire worlds are almost casually destroyed. Huge fleets of spaceships fight bloody wars of attrition. Alien races of two galaxies sort themselves into the allied, Lens-bearing adherents of "Civilization" and the enemy "Boskone". Centuries pass, and eventually the final generations of the breeding program are born. On each of the four "best" planets,

4428-536: The level of activity of any particular gene. A gene may become switched on, switched off, or could become partially switched on or off in an individual. This epigenetic modification is triggered by environmental events. Monozygotic twins can have markedly different epigenetic profiles. A study of 80 pairs of monozygotic twins ranging in age from three to 74 showed that the youngest twins have relatively few epigenetic differences. The number of epigenetic differences increases with age. Fifty-year-old twins had over three times

4510-504: The light of understanding in your intellect and will block you from feeling Him fully in the sweetness of love in your emotions. So be sure to make your home in this darkness... We can't think our way to God... that's why I'm willing to abandon everything I know, to love the one thing I cannot think. He can be loved, but not thought." Within Western Christianity contemplation is often related to mysticism as expressed in

4592-406: The lowest mortality risk at about 9 percent, although that is still significantly higher than that of singletons. Monochorionic twins generally have two amniotic sacs (called Monochorionic–Diamniotic "MoDi"), which occurs in 60–70% of the pregnancies with monozygotic twins, and in 0.3% of all pregnancies. Monochorionic-Diamniotic twins are almost always monozygotic, with a few exceptions where

4674-477: The many races in the universe, with which the Arisians were intending to build a peaceful civilization, as fodder for their power drive. The Arisians detect the Eddorians' invasion of our universe and realize that the two races are too evenly matched for either to destroy the other without being destroyed themselves. The Eddorians do not detect the Arisians, who begin a covert breeding program on every world that can produce intelligent life, with particular emphasis on

4756-563: The midst of human society the truth which is at one and the same time useless and the yardstick of every possible use; so it is also contemplation which keeps the true end in sight, gives meaning to every practical act of life." Pope John Paul II in the Apostolic Letter "Rosarium Virginis Mariae" referred specifically to the catholic devotion of the Holy Rosary as "an exquisitely contemplative prayer" and said that "By its nature

4838-462: The newborn child of God and into our true nature as good and divine is called Theosis . This is to say that once someone is in the presence of God, deified with him, then they can begin to properly understand, and there "contemplate" God. This form of contemplation is to have and pass through an actual experience rather than a rational or reasoned understanding of theory (see Gnosis ). Whereas with rational thought one uses logic to understand, one does

4920-525: The number of twin births in the United States rose 52%. This rise can at least partly be attributed to the increasing popularity of fertility drugs and procedures such as IVF, which result in multiple births more frequently than unassisted fertilizations do. It may also be linked to the increase of growth hormones in food. About 1 in 90 human births (1.1%) results from a twin pregnancy. The rate of dizygotic twinning varies greatly among ethnic groups , ranging as high as about 45 per 1000 births (4.5%) for

5002-414: The occurrence of complications "was found to be more likely with increasing twin-to-twin delivery time interval" and suggested that the interval be kept short, though it noted that the study did not examine causes of complications and did not control for factors such as the level of experience of the obstetrician, the wish of the women giving birth, or the "management strategies" of the procedure of delivering

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5084-554: The opposite with God (see also Apophatic theology ). The anonymously authored 14th century English contemplative work The Cloud of Unknowing makes clear that its form of practice is not an act of the intellect, but a kind of transcendent 'seeing,' beyond the usual activities of the mind - "The first time you practice contemplation, you'll experience a darkness, like a cloud of unknowing. You won't know what this is... this darkness and this cloud will always be between you and your God... they will always keep you from seeing him clearly by

5166-498: The powers taught to second-stage Lensmen. They are the only beings of Civilization ever to see Arisia as it truly is, and the only individuals developed over all the existence of billions of years able finally to penetrate the Eddorians' defense screens. After undergoing advanced training, they are described as "third-stage" Lensmen, transcending humanity with mental scope and perceptions impossible for any normal person. Although newly adult, they are now expected to be more competent than

5248-473: The pregnancy. The timing of this separation determines the chorionicity (the number of placentae) and amniocity (the number of sacs) of the pregnancy. Dichorionic twins either never divided (i.e.: were dizygotic) or they divided within the first 4 days. Monoamnionic twins divide after the first week. In very rare cases, twins become conjoined twins . Non-conjoined monozygotic twins form up to day 14 of embryonic development, but when twinning occurs after 14 days,

5330-426: The product of the complementary human breeding program, Clarissa MacDougall. She is a beautiful, curvaceous, red-haired nurse, who eventually becomes the first human female to receive her own Lens. Their children, a boy and two pairs of fraternal twin sisters, grow up to be the five Children of the Lens. In their breeding, "almost every strain of weakness in humanity is finally removed". They are born already possessing

5412-528: The publishing of "Moon Prospector" in 1966, New Lensman in 1975, which contained "Moon Prospector", and Triplanetary Agent in 1978. Three additional Lensmen novels that feature the alien Second-Stage Lensmen, known as the Second-Stage Lensman Trilogy , were written by David Kyle , published in paperback between 1980 and 1983 and reissued in 2004: The events in these books take place between Second-Stage Lensmen and Children of

5494-408: The rate of monozygotic twins) to 14 and more per thousand in some African countries. Dizygotic twins are also more common for older mothers, with twinning rates doubling in mothers over the age of 35. With the advent of technologies and techniques to assist women in getting pregnant, the rate of fraternals has increased markedly. Monozygotic ( MZ ) or identical twins occur when a single egg

5576-520: The recitation of the Rosary calls for a quiet rhythm and a lingering pace, helping the individual to meditate on the mysteries of the Lord's life as seen through the eyes of her who was closest to the Lord. In this way the unfathomable riches of these mysteries are disclosed." According to Aquinas, the highest form of life is the contemplative which communicates the fruits of contemplation to others, since it

5658-523: The rights and also hinted that he was involved in the project. Although the work on the project began that June, Straczynski later wrote in April 2014 that Universal had scrapped the project, citing excessive cost, and that the rights had reverted to the estate. The series has been adapted into the board wargames Lensman and Triplanetary . The first of these was designed by Philip N. Pritchard. GURPS Lensman: Starkly Astounding Space-Opera Adventure for

5740-444: The same age. However, dizygotic twins may also look very different from each other (for example, be of opposite sexes). Studies show that there is a genetic proclivity for dizygotic twinning. However, it is only the mother who has any effect on the chances of having such twins; there is no known mechanism for a father to cause the release of more than one ovum . Dizygotic twinning ranges from six per thousand births in Japan (similar to

5822-455: The southern part of the country. The incidence of multiple births was related to maternal age but did not bear any association to the climate or prevalence of malaria . Twins are more common in people of African descent. The predisposing factors of monozygotic twinning are unknown. Dizygotic twin pregnancies are slightly more likely when the following factors are present in the woman: Women undergoing certain fertility treatments may have

5904-414: The splitting of a zygote or embryo is unknown. IVF techniques are more likely to create dizygotic twins. For IVF deliveries, there are nearly 21 pairs of twins for every 1,000. Monozygotic twins are genetically nearly identical and they are the same chromosomal sex unless there has been a mutation during development. The children of monozygotic twins test genetically as half-siblings (or full siblings, if

5986-483: The stories first appeared as serials in Astounding Science Fiction , almost all of which were serialized under the editorship of John W. Campbell . They were later collected and reworked into the better-known series of books. The complete series in narrative sequence with original publication dates is as follows. Using the same fictional universe, but not concerning the central plot, Smith wrote

6068-498: The time of the books' writing, is that planets form only rarely, and therefore our First and Second Galaxies, with their many billions of planets, are unique. The Eddorians, a dictatorial, power-hungry race, come into our universe from an alien space-time continuum after observing that our galaxy and a sister galaxy (the Second Galaxy) are passing through each other. This will result in the formation of billions of planets and

6150-436: The twins will likely be conjoined. Furthermore, there can be various degrees of shared environment of twins in the womb, potentially leading to pregnancy complications . It is a common misconception that two placentas automatically implies dizygotic twins, but if monozygotic twins separate early enough, the arrangement of sacs and placentas in utero is in fact indistinguishable from that of dizygotic twins. DiDi twins have

6232-466: The uterus wall at the same time. When two eggs are independently fertilized by two different sperm cells , fraternal twins result. The two eggs, or ova , form two zygotes , hence the terms dizygotic and biovular . Fraternal twins are, essentially, two ordinary siblings who happen to develop in the womb together and who are born at the same time, since they arise from two separate eggs fertilized by two separate sperm , just like ordinary siblings. This

6314-515: The works of mystical theologians such as Teresa of Avila and John of the Cross as well as the writings of Margery Kempe , Augustine Baker and Thomas Merton . Dom Cuthbert Butler notes that contemplation was the term used in the Latin Church to refer to mysticism, and "'mysticism' is a quite modern word". In Christianity, contemplation refers to a content-free mind directed towards

6396-738: The world, at 45–50 twin sets (90–100 twins) per 1,000 live births, possibly because of high consumption of a specific type of yam containing a natural phytoestrogen which may stimulate the ovarys to release an egg from each side. In Central Africa , there are 18–30 twin sets (or 36–60 twins) per 1,000 live births. In South America , South Asia , and Southeast Asia , the lowest rates are found; only 6 to 9 twin sets per 1,000 live births. North America and Europe have intermediate rates of 9 to 16 twin sets per 1,000 live births. Multiple pregnancies are much less likely to carry to full term than single births, with twin pregnancies lasting on average 37 weeks, three weeks less than full term. Women who have

6478-420: Was analyzed for 506,786 single-nucleotide polymorphisms known to occur in human populations. Polymorphisms appeared in 2 of the 33 million comparisons, leading the researchers to extrapolate that the blood cells of monozygotic twins may have on the order of one DNA-sequence difference for every 12 million nucleotides, which would imply hundreds of differences across the entire genome. The mutations producing

6560-530: Was central to the teaching of the Jewish philosopher Maimonides, who taught that contemplating God involves recognizing moral perfection, and that one must interrupt contemplation to attend to the poor. Contemplation has also been central to the Musar movement . In Eastern Christianity , contemplation ( theoria ) literally means to see God or to have the Vision of God. The state of beholding God, or union with God,

6642-456: Was unpublishable — then. But he told me the ending orally and in private. I shan't repeat it; it is not my story. Possibly somewhere there is a manuscript — I hope so! All I will say is that the ending develops by inescapable logic from clues in Children of the Lens . On July 14, 1965, Smith gave written permission to William B. Ellern to continue the Lensman series, which led to

6724-558: Was used to translate the Greek word θεωρία ( theōría ). Contemplation was an important part of the philosophy of Plato ; Plato thought that through contemplation, the soul may ascend to knowledge of the Form of the Good or other divine Forms. Plotinus as a (neo)Platonic philosopher also expressed contemplation as the most critical of components for one to reach henosis . To Plotinus

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