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Praseodymium hexaboride forms black crystals of the cubic crystal system, with space group Pm 3 m, cell parameters a = 0.4129 nm, Z = 1, and structure isotypical with calcium hexaboride. [2] The compound melts congruently at 2610 °C. [3] At temperatures below 7 K, a magnetic transition to an antiferromagnetic state occurs in the compound.
Praseodymium tetraboride forms crystals of tetragonal system, space group P4/mbm, cell parameters a = 0.7242 nm, c = 0.4119 nm, Z = 4, structure like thorium tetraboride. [ 1 ] [ 2 ] The compound is formed by a peritectic reaction and melts at 2350 °C.
19645 Ensembl ENSG00000139687 ENSMUSG00000022105 UniProt P06400 P13405 RefSeq (mRNA) NM_000321 NM_009029 RefSeq (protein) NP_000312 NP_000312.2 NP_033055 Location (UCSC) Chr 13: 48.3 – 48.6 Mb Chr 14: 73.42 – 73.56 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse The retinoblastoma protein (protein name abbreviated Rb or pRb ; gene name abbreviated Rb, RB or RB1) is a tumor ...
According to one study, the PRB was supportive of the Lula da Silva and Rousseff presidencies “on the basis of their concern for social democracy and for eliminating inequality.” [13] However, later the PRB started to join the new rising wave of conservativism and anti-petism [14] [15] in Brazil and all of the PRB's deputies voted in favor ...
“He was beat like a man.” That is how the grandmother of 1-year-old boy Kybrel described the alleged incident that led to his hospitalization with a traumatic brain injury to Pittsburgh outlet ...
Praseodymium antimonide forms cubic crystals, space group Fm 3 m, cell parameters a = 0.638 nm, Z = 4, and structure like sodium chloride. [1] [2] [3] The compound melts congruently at 2170 °C [1] or 2161 °C. [2] At a temperature of 1950 °C, a phase transition occurs in the crystals. At a pressure of 13 GPa, a phase transition also occurs. [4]
1961 USSR stamp marking the 15th anniversary of the People's Republic of Bulgaria. The People's Republic of Bulgaria (PRB; Bulgarian: Народна република България (НРБ), pronounced [nɐˈrɔdnɐ rɛˈpublikɐ bɐɫˈɡarijɐ] Narodna republika Bŭlgariya, NRB) was the official name of Bulgaria when it was a socialist republic from 1946 to 1990, ruled by the Bulgarian ...
E-commerce giant executives allegedly rejected safety recommendations urging production quotas be curtailed.