Example sentences of "[noun] have been [vb pp] in several " in BNC.

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1 This hypothesis has been examined in several studies looking at the PiZ phenotype and periportal α 1 AT granules in patients and controls , and no evidence to support involvement of α 1 AT in genetic predisposition has been found .
2 The latter is composed of a penis which is usually unpaired ( but may be double , as in the Ephemeroptera and some Dermaptera ) and a pair of more lateral structures which are perhaps best referred to as parameres , though this term has been used in several different senses .
3 The importance of potassium depletion has been suggested in several studies ( Conn , 1965 ; Gorden , 1973 ) , and in another potassium supplementation was noted to reverse the detrimental effect on carbohydrate metabolism ( Helderman et al , 1983 ) .
4 Along the crest of this ridge the rock had been exposed in several places , and eroded into a line of towers and pinnacles .
5 A number of small bronze figurines have been found in several locations in southern Britain .
6 RG and RGGF sequences have been found in several proteins related with nucleolar localization and binding to RNA ( 4 , 5 ) .
7 To date , some work has been done in several areas including planning and learning and induction .
8 More recently , a new class of 5HT 4 receptors has been found in several tissues , including the guinea pig ileum and ascending colon , the cardiovascular system of the pig , and the human heat .
9 Idaho had been selected by anti-abortionists after similar bills had been defeated in several other state legislatures .
10 Marketing has been defined in several ways — as an exchange activity , as a management activity , and as an attitude of mind .
11 Marketing has been described in several different ways .
12 This new testing process has been installed in several of the facilities throughout ESP 's organisation .
13 Crow Valley had been covered in several metres of ash and mud from Mount Pinatubo .
14 The role of gold has always been a controversial issue in the international monetary system , but with the advent of floating its importance as a source of international liquidity has been reduced in several ways .
15 Baryte has been produced in several areas of Britain .
16 This ratio has been reported in several series of patients with malignant disease taking continuing oral doses of slow release morphine and having satisfactory levels of analgesia : in one series of 40 patients the mean plasma ratio was 5:1 and in another of 151 patients it was 4.5:1 ; in another 40 patients the ratio in the cerebrospinal fluid was 6:1 .
17 His likeness has been preserved in several portraits , notably by Johann Eckstein in ‘ John Freeth and his Circle ’ ( 1792 ) .
18 The expression in colonic carcinomas of different forms of glutathione S-transferase has been investigated in several biochemical studies .
19 As a breeding bird the Mallard is widely distributed throughout the county and not always confined to wet habitats ; breeding has been established in several downland localities , for example Rewell Wood .
20 The Humber estuary has been identified in several recent studies as one of the most polluted stretches of North Sea coast .
21 The base-modification pattern has been studied in several synthetic variants of yeast tRNA Asp injected into Xenopus laevis oocytes .
22 This pattern has been documented in several research accounts of the primary classroom ( e.g. Boydell 1978 , Southgate , Arnold and Johnson , 1981 ) .
23 He has been confused with his younger brother , Jonathan , also born in Dearham and baptized 11 September 1744 , who followed the same profession , and their separate publications have been listed in several prominent works under John 's name .
24 Despite these criteria , patients with biliary tract calculi have been included in several studies of primary sclerosing cholangitis .
25 Stone axes have been used in several experiments to find out the method and efficiency of hafting , and to see how efficient they were in felling trees .
26 Inadequacy of services for young physically disabled adults has been emphasised in several reports .
27 Alluvial gold has been recorded in several streams in an area of Dalradian metasediments to the south of Loch Tay and from small base metal workings in the vicinity ( Heddle , 1901 ) .
28 This unit had been caught in several skirmishes , losing their CO and second-in-command along with a third of their strength , yet they were seen doing physical training after a short rest in the town — a measure of their quality .
29 The reasons have been explained in several letters to your MP or Regional Councillor on 31 March 1992 , 14 April , 6 May , 4 June and 27 August , all of which I understand have been passed to you , and directly over the phone by Mr Carter on 6 August 1992 .
30 Familial occurrence of chronic inflammatory bowel disease has been reported in several studies during the past decades .
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