(n.) Any one of several species of small arctic rodents of the genera Myodes and Cuniculus, resembling the meadow mice in form. They are found in both hemispheres.
Example Sentences:
(1) The structure and ultrastructure of the following regions of the hypothalamo-hypophysial neurosecretory system (HHNS) in the population cycle of lemming were studied: supraoptic (SON), paraventricular (PVN) and arcuate nuclei (AN), the median eminence (ME) and posterior pituitary (PP).
(2) These results suggest that LEM are a reliable individual difference measure and are sensitive to task differences.
(3) Thus, the effects of LEM in stimulating hepatic amino acid transport appear to be direct, without mediation by other hormones, and to be independent of cAMP.
(4) In two patients with the Lambert-Eaton myasthenic syndrome (LEMS) and small-cell lung carcinoma (SLLC), therapy for LEMS was effective when combined with cancer therapy.
(5) This syndrome is likely to be autosomal recessive and resembles Smith-Lemli-Opitz (SLO) syndrome.
(6) Characteristic reduction of quantal content elicited at 1 Hz and facilitation at 20 Hz was observed in mice treated with LEMS plasma compared to those treated with control plasma.
(7) The Smith-Lemli-Opitz syndrome is characterized by mental retardation, hypotonia, facial dysmorphism and abnormalities of the limbs, genitalia and kidneys.
(8) To test this hypothesis, mouse diaphragms were exposed to control and LEMS IgG and IgG fragments in organ culture for 24 hours and then studied by quantitative freeze-fracture electron microscopy.
(9) LEMS IgG also acts at motor nerve terminal Ca2+ channels leading to muscle weakness.
(10) The tested substances included two sulfated polysaccharides (lentinan sulfate and dextran sulfate) and a nonsulfated polysaccharide PSK, E-P-LEM, glycyrrhizin sulfate, and nucleoside analogues (AZT and DHT).
(11) Replication patterns of the X chromosomes were studied in X*XY wood lemmings with male and female phenotypes.
(12) Measurements of leukocytic endogenous mediator (LEM) activity, i.e., lowering of plasma iron and zinc and increases in blood neutrophils, were made on the same supernatant media.
(13) Plasma insulin and glucagon responses to crude LEM may explain increases in hepatic cAMP, uptake of AA, and glycogenolysis as well as hypoglycemia.
(14) LEMS IgG was equally effective in C5-deficient mice, indicating that late complement components are not required.
(15) Since some factor enhancing antibody response was detected in the culture supernatant of LEM-treated macrophages, this was fractionated by gel filtration, which revealed a substance with a molecular weight of about 15,000 daltons.
(16) The wood lemming, Myopus schisticolor, the collared lemming, Dirostonyx torquatus, and perhaps also one or two species of the genus Akodon have XX and XY females and XY males.
(17) Inhibition of the infectivity and cytopathic effect of human immunodeficiency virus type 1 (HIV-1) by the immunoactive fractions obtained from LEM, which is an extract of the culture medium of Lentinus edodes mycelia, is reported.
(18) This study describes the sequential formation of lesions associated with the endogenous development of Sarcocystis rauschorum (Apicomplexa: Sarcocystidae) in varying lemmings, Dicrostonyx richardsoni.
(19) Simultaneously registered EEG (O1-Cz and O2-Cz) and lateral eye movements (LEM) were analyzed with reference to different stimuli.
(20) SD-exposed lemmings showed 19.2% greater growth than those in LD, resulting primarily from a 29.2 and 15.0% increase in lean and ash components, respectively.
Lemur
Definition:
(n.) One of a family (Lemuridae) of nocturnal mammals allied to the monkeys, but of small size, and having a sharp and foxlike muzzle, and large eyes. They feed upon birds, insects, and fruit, and are mostly natives of Madagascar and the neighboring islands, one genus (Galago) occurring in Africa. The slow lemur or kukang of the East Indies is Nycticebus tardigradus. See Galago, Indris, and Colugo.
Example Sentences:
(1) When size differences are corrected for, Lemur fulvus rufus has significantly longer second lower molar shearing crests than does L. f. mayottensis.
(2) Among the chromosomal rearrangements that occurred during the chromosomal evolution of the sportive lemurs, only those which would generate a pronounced reproductive barrier were considered in relation to the geographic distribution of this genus.
(3) Here, we compare the newly completed sequences of orang-utan and rhesus monkey with human, chimpanzee, gorilla, owl monkey, lemur and goat orthologues.
(4) The rate of positive Lemurs is weak, particularly in Lemur macaco macaco.
(5) The chromosome analysis of meiosis in four lemurs, Lemur fulvus fulvus, L. f. collaris, L. f. albocollaris, and L. macaco, and particular hybrid crosses is reported.
(6) To evaluate these hypotheses, the nucleotide sequence of the mitochondrial cytochrome oxidase subunit II gene was determined from a bushbaby (Galago senegalensis), flying lemur (Cynocephalus variegatus), tree shrew (Tupaia glis), spear-nosed bat (Phyllostomus hastatus), rousette bat (Rousettus leschenaulti), and nine-banded armadillo (Dasypus novemcinctus) and was compared with published sequences of a human, cow, and mouse.
(7) Plasma testosterone-binding globulin (TeBG)-binding capacity was determined by equilibrium dialysis in the lesser mouse lemur (Microcebus murinus), a prosimian which exhibits a clear photoperiod-dependent sexual cycle.
(8) In addition to these ten extant lemurs, four subfossil species have been discovered: three of them (Hapalemur simus, Palaeopropithecus and Mesopropithecus) by the authors.
(9) These karyotypes are compared with each other and also with those of Microcebus murinus (Lemur) and of Cebus capucinus (Simian, platyrrhine).
(10) Karyotype analysis of an apparently normal female lemur revealed three differing karyotypes, one normal and two abnormal.
(11) Its very primitive characteristics relate it to S. diplocyphos Chabaud, Brygoo and Petter, 1965, parasite of lemurs from Madagascar.
(12) The construction of vastus lateralis reflects an adaptation for high force, relatively high velocity, and resistance to fatigue (e.g., large cross-sectional area, long excursion, most heterogeneous distribution of fiber types, large amount of tendon per fasciculus); this muscle is probably the primary contributor to a wide range of locomotor behaviors in lemurs.
(13) As measured at increment-threshold, the photopic spectral sensitivity function for the lemur has multiple peaks (at ca.
(14) Recent research on social enhancement and suppression of ovarian cycles in mammals suggests that a single pheromone-based signal-response system could mediate both ringtailed lemurs' remarkable annual estrous synchrony and the subsidiary asynchrony reported here.
(15) We examine several explanations for the geographic pattern of body size variation exhibited by the subfossil lemur Archaeolemur.
(16) Forests of Ankarana limestone massif in northern Madagascar support one of the largest and least disturbed populations of Crowned Lemurs, Lemur coronatus.
(17) Sanford's Lemur, Lemur fulvus sanfordi, also inhabits the Ankarana forests but is most abundant in degraded habitats.
(18) A culture technique was designed specifically for lemur lymphocytes to facilitate description of the complete karyotypes using G--banding, C-banding, and Ag-AS staining for nucleolus organizer regions (NOR's).
(19) The influence of social status, reproductive and agonistic contexts and environmental change on scent-marking and allomarking rates were studied in captive groups of Lemur fulvus and Lemur macaco.
(20) Similar crystalloids have been described in other steroid-secreting organs, including the antebrachial organ of the lemur (Lemur catta), the parotoid gland of Bufo alvarius and in sebaceous gland cells of the Galagos and Macaques.