Because all of the five children he fathered with his first and fourth wife were daughters, he would have no lawful male heir to his throne.

Because reported AIDS cases in Africa and other parts of the developing world include a larger proportion of people who do not belong to Duesberg's preferred risk groups of drug addicts and male homosexuals, Duesberg writes on his website that " There are no risk groups in Africa, like drug addicts and homosexuals ," However, many studies have addressed the issue of risk groups in Africa and concluded that the risk of AIDS is not equally distributed.

Because of Latin's gender based declension, this word may be restricted by some English speakers to describing a male.

Because consorts of crown princes, younger sons, and emperors were generally Fujiwara women, the male heads of the Fujiwara house were often the father-in-law, brother-in-law, uncle, or maternal grandfather of the emperor.

Because the cost of female condoms is higher than male condoms, there have been studies carried out with the aim of detecting whether they can be reused.

Because most of Genseric's immediate family was dead, his elder brothers having been murdered by Huneric, Gunthamund found himself as the eldest male member of the family when Huneric died in 484.

Because the disease-causing gene is located on the X chromosome, a female born with a MECP2 mutation on her X chromosome has another X chromosome with an ostensibly normal copy of the same gene, while a male with the mutation on his X chromosome has no other X chromosome, only a Y chromosome ; thus, he has no normal gene.

Because of the embarrassment a woman might feel when showing her buttocks ( and possibly her genitals, depending on the position ) to a male apothecary, some contraptions were invented that blocked all from the apothecary's view except for the anal area.

Because mtDNA is transmitted from mother to child ( both male and female ), it can be a useful tool in genealogical research into a person's maternal line.

Because the human Y chromosome changes relatively slowly over time and is only passed along the direct male line, it may be used to trace paternal lineage.

Because at the time of the engagement Emperor Alexios I had no rightful male heirs to inherit the throne, young Constantine was proclaimed the co-emperor of the Byzantine Empire.

Because Charles had no surviving male progeny, his successor was his uncle Louis, who was later succeeded by his half-brother, Leopold.

Because many business and government policies were designed to accommodate the " ideal worker " ( that is, the traditional male worker who had no such responsibilities ) rather than caregiver-workers, inefficient and inequitable treatment has resulted.

Because British royal rule is not salic ( meaning passed down along the male line, but rather, through immediate family ), following the deaths of these people each of Queen Victoria's ' untitled ' daughters would assume the throne in turn ; Princess Louise, Princess Helena, and finally Princess Beatrice.

Because most film reviewers are male, androcentric films ( films from a masculine viewpoint ) may tend to receive more glowing reviews than female-centric films.

Because Vassar's charter prohibited male matriculants, the graduates were given diplomas via the University of the State of New York.

Because the male and female plumages of the Mandarin Duck are so unalike, yuan-yang is frequently used colloquially in Cantonese to mean an " odd couple " or " unlikely pair " – a mixture of two different types of same category.

Because of this, the Iriomote cat's brain is smaller ; a male leopard cat's brain is about 42 grams whereas a male Iriomote cat's brain is about 30 grams.

Because of the presence of the feminine Ankhetkheperure Neferneferuaten, scholars have generally dropped the old view that there was only one, male individual involved.

Because of the missing fundamental effect, male voices still sound male over the telephone.

Because all male members of the royal clan are considered to have equally legitimate claims on power, the ruler is the individual who eliminates competitors and re-subjugates the rest of the state formation.

Because of the overlap in sizes, the female can be confused with the similarly-sized male Northern Goshawk, but lacks the bulk of that species.

Because they had " caused the children of Israel, through the counsel of Balaam ," to sin against the Lord and had sent a plague into the congregation of Israelites, Moses decreed that every male child and non-virginal woman be killed ( since it was the Midianite women who led the Israelite men into sexual sin ).

Because of the means of publication -- science-fiction magazines and cheap paperbacks -- and because dystopian science fiction is still appearing in quantity the full range and extent of this phenomenon can hardly be known, though one fact is evident: the science-fiction imagination has been immensely fertile in its extrapolations.

Because agricultural activities are seasonal and the areas of production and harvest of many foods are widely scattered geographically, and because of the high cost of transporting bulk food items any substantial distance to a central processing location, the use of large central processing stations, where low-cost radiation facilities approaching the megawatt range might be utilized, is inherently impracticable.

Because the range of possible values for K < sub > a </ sub > spans many orders of magnitude, a more manageable constant, pK < sub > a </ sub > is more frequently used, where pK < sub > a </ sub >

Because the percentage of each constituent can be varied, with any mixture the entire range of possible variations is called a system.

Because this protein gp120 is necessary for HIV to attach, it does not change across different strains and is a point of vulnerability across the entire range of the HIV variant population.

Because archaeoastronomy is about the many and various ways people interacted with the sky, there are a diverse range of sources giving information about astronomical practices.

Because Bush's approval ratings were in the 80 % range during the Gulf War, he was described as unbeatable.

Because this range of non-zero amplitude may be very broad or infinite, this definition is typically relaxed so that the bandwidth is defined as the range of frequencies in which the signal's spectral density is above a certain threshold relative to its maximum.

Because of the protections provided the species on this atoll, and the isolation of the east rim of the atoll, the species is recorded in greater densities there than anywhere else in its range ( 339 crabs / ha ).

Because an electron beam only penetrates to a limited depth before being absorbed, typically up to 5 cm for electron energies in the range 5 – 20 MeV, electron therapy is useful for treating skin lesions such as basal cell carcinomas.

Because subwoofers are generally limited to a bandwidth of no higher than 150 Hz, the switching speed for the amplifier does not have to be as high as for a full range amplifier, and simpler designs could be utilized.

Because food writing is topic centered, it is not a genre in itself, but writing that utilizes a wide range of traditional genres, including recipes, journalism, memoir, and travelogues.

Because the muskoxen's natural range favors the protected Northeast Greenland National Park, it is a less common object of hunting than in the past.

Because waves at different frequencies propagate at differing phase velocities in dispersive media, for a large frequency range ( a narrow envelope in space ) the observed pulse would change shape while traveling, making group velocity an unclear or useless quantity.

Because here gas in-and outlets are positioned at opposed ends of the cylinder, one can achieve uniflow scavenging, which, as in the four-stroke engine, is efficient over a wide range of engine speeds.

Because of its wide range of latitude and seasonal winds, Japan has a variety of climates, with a latitude range often compared to that of the east coast of North America, from Nova Scotia to the U. S. state of Georgia.

Because game animations focus on dramatic rather than casual actions, the range of character emotions is often limited.

Because of the extraordinary range of properties of polymeric materials, they play an essential and ubiquitous role in everyday life.

Because of the broad range of expressions of romantic nationalism, it is listed as a contributing factor from everything from the creation of independent states in Europe, to the rise of Nazi Germany.

Because silver is such a malleable metal, silversmiths have a large range of choices with how they prefer to work the metal.

Because speed and range were severely limited underwater while running on battery power, U-boats were required to spend most of their time surfaced running on diesel engines, diving only when attacked or for rare daytime torpedo strikes.

Because of the legacy of 8-bit text representations in programming languages and operating systems and the desire to avoid burdening users with the need to understand the nuances of encoding, many text editors used by HTML authors are unable or unwilling to offer a choice of encodings when saving files to disk and often do not even allow input of characters beyond a very limited range.

Because the town lies in the rain shadow ( leeward side ) of the Harz, less precipitation falls here than in similar temperate regions without the protection of a mountain range.