(n.) A bright silver-white metallic element. It is of the iron group, and is hard, malleable, and ductile. It occurs combined with sulphur in millerite, with arsenic in the mineral niccolite, and with arsenic and sulphur in nickel glance. Symbol Ni. Atomic weight 58.6.
(n.) A small coin made of or containing nickel; esp., a five-cent piece.
Example Sentences:
(1) The effect of airborne pollution, especially nickel, from Kola has been studied in 10,612 persons who participated in a cardiovascular screening survey in Finnmark in 1974-75.
(2) In order to determine the specific action of cadmium on bone metabolism, the effect of cadmium on alkaline phosphatase activity, a marker enzyme of osteoblasts, was compared with that of other divalent heavy metal ions, i.e., zinc, manganese, lead, copper, nickel and mercury (10 microM each), using cloned osteoblast-like cells, MC3T3-E1.
(3) You could understand why the Met was frantic to find who had stabbed Rachel Nickell 49 times on Wimbledon Common while her screaming child looked on, but the case against Stagg was preposterous.
(4) The uptake of nickel ions by the cyanobacterium Anabaena cylindrica was studied.
(5) Nickel induced considerable increases in both glucose and glucagon levels, delayed in 19-day pregnant rats with respect to controls, and deep and permanent decreases in glycogen and amino acids in pregnant rats.
(6) The male:female prevalence of nickel allergy was 1:2 (sex difference p less than 0.001) and for chromate was 7:1 (sex difference p less than 0.001).
(7) These results suggest that nickel is unable to induce basepair or frameshift mutations in Salmonella tester strains and are discussed in relationship to the low binding affinity of Ni(II) for DNA.
(8) Titanium-nickel alloy composed of 50% by weight of each metal has unique thermal shape-memory properties, with a transition temperature of 20 degrees C. Each stent consists of one wire with a diameter of 0.9 mm.
(9) The effect of calcium(II)acetate (CaAcet) and magnesium(II) acetate (MgAcet) on nickel(II) uptake in the lungs of strain A mice and on the nickel(II)-induced changes in the pulmonary DNA synthesis were studied in order to elucidate the mechanism(s) of inhibitory action of CaAcet and MgAcet upon nickel(II) tumorigenesis.
(10) To determine cell-mediated immunity to nickel, another matrix in hard metal besides cobalt, lymphocyte transformation tests (LTT) with nickel were carried out in seven hard metal asthma patients all of who had reacted to cobalt chloride in the bronchial provocation tests (BPT).
(11) The results showed that nickel exposure led significantly to raised nickel concentration in nasal mucosa, plasma and urine both in active and retired nickel workers.
(12) Base metal alloys, principally made of nickel, chromium, and beryllium have gained widespread usage, especially in the United States, due to their lower cost and higher mechanical properties.
(13) An empirical power absorption formula developed by Haider for thermally self-regulating nickel-silicon ferromagnetic seeds has been used to calculate the seed power absorption as a function of seed temperature.
(14) The crystalline nickel sulfides and oxides that slowly dissolve in body fluids and readily enter cells by phagocytosis tend to be most active in producing morphological transformation of SHE cells in vitro and stimulating erythrocytosis and carcinogenesis following ir administration to rats.
(15) The nickel-titanium wires, however, showed a clear deviation form the linearity with a curviform course.
(16) After 3 and 6 months exposure to metallic nickel the macrophages were 'overfed' and inactive.
(17) Nickel deficiency was produced in chicks under near optimal growth conditions.
(18) However, nickel also induces a direct decrease in the release of lysozyme activity by AM.
(19) The hyperglycaemic response to nickel of female rats was more marked than that of males, with an increase in intracellular glucose, more marked during pregnancy, which even surpassed the plasma concentration of glucose.
(20) A nickel subsulfide (Ni3S2) lung tumor model for the study of metal carcinogenesis was evaluated using intratracheally dosed B6C3F1 mice.
Spatula
Definition:
(n.) An implement shaped like a knife, flat, thin, and somewhat flexible, used for spreading paints, fine plasters, drugs in compounding prescriptions, etc. Cf. Palette knife, under Palette.
Example Sentences:
(1) The relationship between technique of obtaining Papanicolaou smears, presence of endocervical cells, and rate of cervical neoplasia was studied by comparing an endocervical and ectocervical nylon brush (Bayne brush), Ayre spatula plus endocervical brush, and spatula plus cotton-tipped swab in a randomized, prospective trial involving 11,061 patients.
(2) A model system of exfoliated normal human cervicovaginal squamous cells, exfoliated rodent tumor cells, and acellular, viscous, mucuslike material was used to investigate cell deposition on smear preparations made with three different instruments: plastic spatulas, wooden spatulas, and brush-tipped collectors.
(3) Both the modified Ayre spatula and the cytobrush were found to be inadequate in a significant number of patients with known cytological atypia.
(4) Since the collected epithelium cells adhere to the pipettes, these cells were transferred onto a polycarbonate filter by using a micro spatula.
(5) The performance of a new ectocervical brush sampler--the Cervex--was compared with the Ayre spatula in 280 paired cervical smears.
(6) With this approach, retraction of the orbital contents decreases the amount of retraction of the brain to such an extent that a brain spatula is not necessary for access to the anterior communicating artery complex.
(7) The incidence of smears with endocervical cells, however, was significantly greater using the Aylesbury (33.4%) than the Ayre (20.4%) spatulas, despite there being no difference in the incidence of smears with epithelial abnormalities.
(8) The inefficiency of the Ayres Spatula in detecting abnormality in cervical cytology has been demonstrated recently in a number of trials.
(9) 5 Flip with a spatula and cook the other side for a few minutes until golden.
(10) After closing the scleral flap with eight interrupted sutures and the conjunctival flap with a running suture, a 1-mm spatula was inserted beneath the scleral flap, and the trabeculum was punctured.
(11) The efficacy of a new sampling technique performed for early detection of cervical carcinoma is compared with Pap smears with the swab-and-wooden spatula technique in 312 women.
(12) The nationwide screening program for cervical carcinoma in The Netherlands was unique in that all women between the age of 35 and 55 years were individually invited to undergo a cervical spatula smear.
(13) Fifty-nine patients had a cervical scrape with a wood spatula first and a plastic spatula second: 60 were scraped in the inverse order.
(14) The cytologically positive cases found in 25,300 cervical smears of spatula samples and 6,168 smears prepared by combined spatula-Cytobrush sampling were analyzed.
(15) In 130 high-risk patients for cervical pathology paired smears were obtained with a wooden spatula and a Cytobrush.
(16) The Multispatula, which is adjustable to the specific shape of each individual cervix, was compared with the Ayre spatula in 236 patients.
(17) A cyclodialysis spatula specifically designed for glaucoma surgery is presented which facilitates the performance of the cyclodialysis procedure alone or in combination with cataract extraction and decreases the chance of inadvertent damage to the eye.
(18) The single case of filamentous bacteria suggests that a spatula may yield better organism retrieval from ulcers caused by filamentous organisms.
(19) They are also known for space-saving devices such as utensils which pack neatly on top of each other in a stand, spatulas, palette knifes and ladles that use a weighted handle to avoid being placed on the countertop, thus saving cleaning.
(20) There are three typical types of manicure: the regular polish; the gel or acrylic spatula-shaped talons beloved of the tabloid Wag; and the super-cool, bejewelled nail art more commonly seen in either east London or Japan.