bluuebunny/crossref_metadata_2025_split huggingface dataset:
Columnar calcites as testimony of diagenetic overprinting at the boundary between Upper Tournaisian dolomites and limestones (Belgium): multiple origins for apparently similar features
Authors: NIELSEN PETER , MUCHEZ PHILIPPE , HEIJLEN WOUTER , TONY FALLICK A. E. , KEPPENS EDDY , WEIS DOMINIQUE , SWENNEN RUDY 
Published: September 2005

AbstractIn topographic flat areas, sedimentary settings may vary from one outcrop to another. In these settings, calcite precipitates may yield macroscopically similar columnar features, although they are products of different sedimentary or diagenetic processes. Three columnar calcite crystal fabrics, i.e. rosettes, palisade crusts and macro‐columnar crystal fans, have been differentiated near and at the contact between Upper Tournaisian dolomites and limestones along the southern margin of the Brabant‐Wales Palaeohigh. Their petrographic characteristics, and geochemical and fluid inclusion data provide information on the (dia)genetic processes involved. Rosettes composed of non‐luminescent columnar calcite crystal fans (1–5 cm in diameter) developed on top of one another, forming discrete horizons in repetitive sedimentary cycles. The cycles consist of three horizons: (I) a basal horizon with fragments from the underlying horizon, (II) a micrite/microspar horizon with incipient glaebules, (III) an upper horizon consisting of calcite rosettes, with desiccation features. The petrographical features and δ18O signatures of −10·0 to −5·5‰ and δ13C values of −5·5 to −3·2‰ support either evaporative growth, an evaporative pedogenic origin, or overprinting of marine precipitates. Palisade crusts, composed of a few to 10 mm long non‐luminescent calcite crystals, coat palaeokarst cavities. Successive palisade growth‐stages occur which are separated by thin laminae of micrite or detrital quartz, displaying a geopetal arrangement. Palisade crusts are interpreted as intra‐Mississippian speleothems. This interpretation is supported by their petrographic characteristics and isotopic signature (δ18O = −8·7 to −6·5‰ and δ13C = −4·8 to −2·5‰). Macro‐columnar crystals, 1–50 cm long, developed mainly perpendicular to cavity walls and dolomite clasts. Crystal growth stages in the macro‐columnar crystals are missing. δ18O values vary between −16·4 and −6·8‰ and δ13C values between −5·2 and −0·9‰. These features possibly support a late diagenetic high temperature precipitation in relation to hydrothermal karstification.
Depositional environments and iron ooid formation in condensed sections (Callovian–Oxfordian, south‐eastern Paris basin, France)
Authors: COLLIN P. Y. , LOREAU J. P. , COURVILLE P. 
Published: September 2005

AbstractCarbonate platforms across Western Europe were superseded at the Middle–Upper Jurassic (Callovian–Oxfordian) boundary either by alternating marl–limestone and widespread marl deposits or by condensed sections containing iron ooids. The characteristics of marine condensed sections in the south‐eastern part of the Paris Basin (France) and their distribution pattern are examined here, and a model of iron ooid formation is developed. Iron ooids are found from the shoreface to the offshore zone. They are most abundant in the median‐to‐distal offshore transition zone, where they originally formed. They also occur commonly, albeit often as reworked grains, in the proximal offshore zone, to which they were transported. The contemporaneous, thick, predominantly marl sections that occur laterally are devoid of iron ooids and were deposited in deeper settings (distal offshore zone). The iron ooids are composed of goethite. Typically, they have a nucleus made up of a clump of goethite crystals and a laminated cortex. Three distinctive nanostructures are identified in the cortex laminae: (i) a nanograined crystalline structure typical of primary goethite; (ii) a secondary nanoflaked structure thought to have formed mechanically by reorientation of the goethite crystals; and (iii) a coalesced structure acquired by subsequent diagenetic recrystallization. The iron ooids formed successively (i) by lamina growth when goethite precipitated in the surface layer of the sediment (nanograined structure) and (ii) by interruption of growth when the ooids were remobilized by hydrodynamic agents, as reflected by the flaked nanostructure; (iii) these two nanostructures were sometimes transformed into a coalesced structure by recrystallization when ooids were buried.
Rounded cobbles that have not travelled far: incorporation of corestones from saprolites in the South Mountain area of southern Nova Scotia, Canada
Authors: RYAN R. J. , O'BEIRNE‐RYAN A. M. , ZENTILLI M. 
Published: September 2005

AbstractSaprolitic palaeosurfaces occur at several localities on the granitoid rocks of the South Mountain Batholith of Nova Scotia. There are three ages of saprolites within the study area: pre‐Pleistocene, pre‐Triassic and pre‐Carboniferous. Within these ‘in‐place’ weathered horizons, there are remnant ellipsoidal blocks of unweathered granitoid referred to as corestones. These corestones are isolated rounded pods of relatively unweathered material surrounded by rotted granitoid saprolitic material. The weathered material which surrounds these corestones is poorly consolidated and easily eroded. The erosion of these horizons produces a lag deposit that contains many rounded corestones which can be incorporated into subsequent sedimentary units. The rounded boulders, cobbles and pebbles of granite within many of the Pleistocene glacial deposits in southern Nova Scotia are probably related to the incorporation of these saprolite related structures, given the locally derived (within 400 m of the source) nature of the tills. The presence of saprolites at unconformities of various ages on the South Mountain granitoid rocks suggests that incorporation of saprolitic material probably occurred along a number of palaeosurfaces in the past. The recognition of this process has implications for the interpretation of rounded granite‐clast conglomerates and quartz‐rich sandstones of various ages within the stratigraphic record of eastern Canada. Similar palaeosurfaces elsewhere in the world also have related saprolite derived sedimentary rocks associated with them. In summary, well‐rounded spherical pebbles, cobbles and boulders of granitoid material incorporated in sedimentary strata need not have travelled far from source nor are they necessarily recycled from older conglomerates.
Influence of vegetation on aeolian sand transport rate from a backshore to a foredune at Hasaki, Japan
Authors: KURIYAMA YOSHIAKI , MOCHIZUKI NORIO , NAKASHIMA TSUYOSHI 
Published: September 2005

AbstractThe influence of vegetation on aeolian sediment transport rate in the region from a backshore to a foredune was investigated at the Hasaki Coast in Japan, where an onshore wind was predominant and the creeping beach grasses Carex kobomugi and Calystegia soldanella were major species. The comparison of cross‐shore distributions of the cross‐shore component of aeolian sand transport rate with and without vegetation, which were estimated on the basis of the beach profile changes and a mass conservation equation, showed that the creeping grasses influenced the aeolian sand transport rate. The landward aeolian sand transport rate rapidly decreased landward from the seaward limit of vegetation when the grasses grew. The aeolian sand transport rate reduced by 95% with a vegetation cover of 28%. On the other hand, when the grasses were absent, the landward aeolian sand transport rate did not decrease near the seaward vegetation limit, but near the foot of the foredune.
Regulation of sand transport in the Colorado River by changes in the surface grain size of eddy sandbars over multi‐year timescales
Authors: TOPPING DAVID J. , RUBIN DAVID M. , SCHMIDT JOHN C. 
Published: September 2005

AbstractIn settings where the transport of sand is partially or fully supply limited, changes in the upstream supply of sand are coupled to changes in the grain size of sand on the bed. In this manner, the transport of sand under the supply‐limited case is ‘grain‐size regulated’. Since the closure of Glen Canyon Dam in 1963, the downstream reach of the Colorado River in Marble and Grand Canyons has exhibited evidence of sand‐supply limitation. Sand transport in the river is now approximately equally regulated by changes in the discharge of water and changes in the grain sizes of sand on the channel bed and eddy sandbars. Previous work has shown that changes in the grain size of sand on the bed of the channel (driven by changes in the upstream supply of sand owing to both tributary floods and high dam releases) are important in regulating sand transport over timescales of days to months. In this study, suspended‐sand data are analysed in conjunction with bed grain‐size data to determine whether changes in the grain size of sand on the bed of the channel or changes in the grain size of sand on the surface of eddy sandbars have been more important in regulating sand transport in the post‐dam Colorado River over longer, multi‐year timescales. The results of this study show that this combined theory‐ and field‐based approach can be used to deduce which environments in a complicated setting are the most important environments for regulating sediment transport. In the case of the regulated Colorado River in Marble and Upper Grand Canyons, suspended‐sand transport has been regulated mostly by changes in the surface grain size of eddy sandbars.
Long‐term continence in patients with Hirschsprung's disease and Down syndrome
Authors: CATTO‐SMITH ANTHONY G , TRAJANOVSKA MISEL , TAYLOR RUSSELL G 
Published: September 2005

AbstractBackground and Aim:  Hirschsprung's disease is more common in children with Down syndrome, but the outcome for continence in this group is unclear. The aim of the present study was to determine the natural history of bowel function in children with Down syndrome and Hirschsprung's disease.Methods:  We undertook a retrospective study of all patients with both Down syndrome and Hirschsprung's disease diagnosed at the Royal Children's Hospital, Melbourne, between 1974 and 2001 using a structured questionnaire.Results:  Ten of the 20 eligible patients were interviewed. Fecal incontinence was common (87%), as were episodes of diarrhea and perianal excoriation (40%). Persistent constipation was relatively unusual (20%). Adverse reactions to food, especially vegetables and fruit, were very common (90%). There was evidence that bowel dysfunction improved with age, particularly sensation of impending stool (P < 0.05), ability to discriminate stool consistency (P = 0.05), constipation (P < 0.05), episodes of diarrhea (P = 0.08) and excoriation (P < 0.05).Conclusion:  Persistent bowel dysfunction is common in children with Down syndrome and Hirschsprung's disease, but there is evidence of improvement with age. There was an unexpectedly high prevalence of food‐related adverse reactions.
Evaluation of gastrointestinal motility by computerized analysis of abdominal auscultation findings
Authors: YAMAGUCHI KAZUYA , YAMAGUCHI TAKETO , ODAKA TAKEO , SAISHO HIROMITSU 
Published: September 2005

AbstractBackground and Aims:  To evaluate gastrointestinal motility by abdominal auscultation.Methods:  Abdominal auscultated sounds of 20 healthy adults and 10 diabetes mellitus patients with delayed gastric emptying were digitally recorded and then analyzed by computer while simultaneously monitoring the motility of the antrum of the stomach by ultrasonography. The auscultated sound, when the stomach wall was moving, was regarded as the gastroduodenal (GD) sound and when not moving as the intestinal (I) sound. The sound index (SI; the sum of the amplitude) was calculated to indicate the power of sound. Sounds were recorded for 15 min under fasting conditions and 60 min after a liquid meal. In six healthy adults, the gastroduodenal pressure was recorded under abdominal auscultation to detect any correlation between the motility index (MI; the sum of the area under the curve) and SI.Results:  A definite increase in the SI of the GD sound was observed after the liquid meal in comparison with that of the I sound. A positive correlation (r = 0.678) was observed between the SI of the GD sound and MI, thus, it was considered that the GD sound reflected the motility of the gastroduodenal wall. In the diabetes mellitus patients, the SI of the GD sound was significantly lower after food intake than in healthy adults.Conclusion:  The results of the present study indicate that the abdominal auscultation test could be used as a new diagnostic method to detect any abnormality in gastrointestinal motility.
Urodynamic findings in children with cerebral palsy
Authors: KARAMAN M IHSAN , KAYA CEVDET , CASKURLU TURHAN , GUNEY SONER , ERGENEKON ERBIL 
Published: September 2005

Abstract Aim: More than one‐third of children with cerebral palsy are expected to present with dysfunctional voiding symptoms. The voiding dysfunction symptoms of the cerebral palsy patients in the present study were documented. Methods: Of the study group, 16 were girls and 20 were boys (mean age: 8.2 years). Children with cerebral palsy were evaluated with urodynamics consisting of flow rate, filling and voiding cystometry, and electromyography findings of the external urethral sphincter to determine lower urinary tract functions. Treatment protocols were based on the urodynamic findings. Anticholinergic agents to reduce uninhibited contractions and to increase bladder capacity were used as a treatment. Clean intermittent catheterization and behavioral modification were used for incomplete emptying. Results: Of the children, 24 (66.6%) were found to have dysfunctional voiding symptoms. Daytime urinary incontinence (47.2%) and difficulty urinating (44.4%) were the most common symptoms. Urodynamic findings showed that neurogenic detrusor overactivity (involuntary contractions during bladder filling) with a low bladder capacity was present in 17 (47.2%) children, whereas detrusor–sphincter dyssynergia was present in four patients (11%). The mean bladder capacity of patients with a neurogenic bladder was 52.2% of the expected capacity. Conclusions: The present study concluded that voiding dysfunction was seen in more than half of the children with cerebral palsy, which is a similar result to other published studies. We propose that a rational plan of management of these patients depends on the evaluation of the lower urinary tract dysfunction with urodynamic studies. These children benefit from earlier referral for assessment and treatment.
Serum creatinine and cholesterol levels of testicular cancer patients in long‐term follow up
Authors: HISAMATSU EIJI , KAWAI KOJI , HINOTSU SHIRO , MIYANAGA NAOTO , SHIMAZUI TORU , AKAZA HIDEYUKI 
Published: September 2005

Abstract Purpose: Most patients with advanced testicular cancer can be cured with cisplatin‐based chemotherapy. Therefore, the long‐term effects of the treatment are clinically important. In the present study, we evaluated the serum creatinine and cholesterol levels of long‐term survivors of testicular cancer. Methods: Serum creatinine and cholesterol levels were determined in 23 testicular cancer patients who had received cisplatin‐based chemotherapy more than 5 years earlier. They were compared with a control group of 16 patients who did not receive chemotherapy. In addition, follow‐up data of beyond 10 years after the initial treatment was obtained from 17 patients. We also analysed the trends of both serum creatinine and cholesterol determinations over 10 or more years using a generalized linear model. Results: There was no significant difference in the serum creatinine and cholesterol levels 5 years after the treatment between the chemotherapy and control groups. Analysis using a generalized linear model showed a significant trend toward an increase in serum creatinine in patients who had developed renal dysfunction during chemotherapy (P = 0.0024). The elevation of the serum creatinine level was mainly observed during the first 5 years. In addition, a significant trend toward an increase in serum cholesterol was revealed in both the chemotherapy and control groups. Conclusions: Patients who have developed renal dysfunction during chemotherapy may be at risk of gradually increasing serum creatinine levels even after it has become normal. Although further analysis is needed, we recommend long‐term follow up in the survivors of metastatic testicular cancer patients treated with cisplatin‐based chemotherapy.
Carcinoma of the breast metastatic to the ureter seven years later
Authors: MONDAINI NICOLA , GIUBILEI GIANLUCA , NESI GABRIELLA , BONGINI ANDREA , GIRARDI LUCIA ROBERTA , PONCHIETTI ROBERTO 
Published: September 2005

Abstract We present a case of ureteral metastasis from a primary breast cancer where the disease recurred with an episode of renal colic 7 years after diagnosis. A surgical operation was performed to remove the terminal ureter and the perimeatal area of the urinary bladder. Urological and radiological outcome was satisfactory after a 2‐year follow up.
Angiomyxoid tumor with an intermediate feature between cellular angiofibroma and angiomyofibroblastoma in the male inguinal region
Authors: HARA NOBORU , KAWAGUCHI MAKOTO , KOIKE HIROSHI , NISHIYAMA TSUTOMU , TAKAHASHI KOTA 
Published: September 2005

Abstract Angiomyofibroblastoma (AMFB) and cellular angiofibroma (CA) are angiomyxoid tumors which infrequently arise in the female vulvovagina and each has been proposed to be a distinct clinicopathological entity. The former in male genitalia is exceedingly rare and has been described as its male analog or under the name of male AMFB‐like tumor, while the latter in men has not been reported. We describe an angiomyxoid tumor which appeared in the inguinal region of 72‐year‐old man. The present case had a histopathological characteristic and immunophenotype intermediate between AMFB and CA. Male genital angiomyxoid tumors share many immunopathological features with their female counterparts, suggesting that they are male homologs rather than analogs. Immature mesenchymal cells with a potential of the multilineage differentiation might be promoted toward neoplastic myoblasts, fibroblasts and adipocytes, resulting in genital angiomyxoid tumors showing a broad spectrum in the immunopathological phenotype.
Stauffer's syndrome variant associated with renal cell carcinoma
Authors: GIANNAKOS GEORGE , PAPANICOLAOU XENOFON , TRAFALIS DIMITRIOS , MICHAELIDIS ISAAK , MARGARITIS GEORGE , CHRISTOFILAKIS CHARALAMBOS 
Published: September 2005

Abstract Cholestasis, as a paraneoplastic syndrome, has been well described in patients with malignant lymphohyperplastic diseases and renal cell cancer. Non‐metastatic nephrogenic hepatic dysfunction syndrome without jaundice has often been described in patients with Stauffer's syndrome. Paraneoplastic cholestatic jaundice is extremely uncommon. We report, a patient who presented with pruritus and cholestatic jaundice and was diagnosed with renal cell cancinoma (RCC) in the right kidney. Liver malfunction and cholestatic icterus was attributed to RCC. Jaundice and liver dysfunction gradually restored to normal after surgical resection of the tumor. Malignancies may cause cholestatic jaundice through well‐recognized mechanisms. Paraneoplastic syndromes associated with malignancy, can induce a reversible form of cholestasis through an unclear pathogenetic mechanism.
Retroperitoneal extragonadal germ cell tumor in a patient with Klinefelter's syndrome
Authors: INAI HIROMU , KAWAI KOJI , MORISHITA YUKIO , NAGATA MICHIO , NOGUCHI MASAYUKI , AKAZA HIDEYUKI 
Published: September 2005

Abstract A 22‐year‐old man was diagnosed with retroperitoneal seminoma associated with Klinefelter's syndrome. The tumor was 14 × 12 cm in size and surrounded the superior mesenteric artery. He received induction chemotherapy with bleomycin, etoposide and cisplatin (BEP) followed by salvage chemotherapy with paclitaxel, ifosfamide and cisplatin (TIP). The tumor considerably decreased in size and remains as a poorly defined plaque. At the time of writing, he is being followed closely and is free from progression.
Origin of multifocal carcinomas of the bladder and upper urinary tract: Molecular analysis and clinical implications
Authors: HABUCHI TOMONORI 
Published: September 2005

Abstract The simultaneous or metachronous development of multifocal tumors with identical or variable histological features in the urothelial tract in a single patient is a well‐known characteristic of urothelial cancer. To explain this phenomenon, two distinct concepts have been proposed: the ‘field defect’ hypothesis according to which urothelial cells in patients are primed to undergo transformation by previous carcinogenic insults and the ‘single progenitor cell’ hypothesis, which asserts that the multifocal development is caused by the seeding or intraepithelial spread of transformed cells. Results of recent molecular genetic studies support the ‘single progenitor cell’ hypothesis, and indicate that the genetic and phenotypic diversity observed in multifocal urothelial tumors is a consequence of clonal evolution from a single transformed cell. An understanding of the mechanism of the heterotopic recurrence of urothelial cancer may provide new prospects for early molecular detection and prevention of heterotopic recurrence of urothelial cancer.
Measurement of prostate specific antigen complexed to α1‐antichymotrypsin to avoid unnecessary biopsy in patients with serum prostate specific antigen levels 4–20 ng/mL
Authors: NAKANO YOJIRO , OKAMURA KIKUO , TAKAMURA SHINICHI , OKAMOTO NORIKO , NARISHIMA MASAHIRO , YOSHINO YASUSHI , HATTORI RYOHEI , ONO YOSHINARI , OHSHIMA SHINICHI , NAGASAKA TETSURO 
Published: September 2005

Abstract Aim: To investigate whether measuring prostate specific antigen complexed to α1‐Antichymotrypsin (PSA‐ACT) can increase sensitivity and specificity in detecting prostate cancer. Methods: In this prospective study, we measured serum total PSA, PSA‐ACT, free PSA, prostate volume and transition zone volume on 210 patients with total PSA level of 4–20 ng/mL. From fitted curves between positive predictive values for prostate cancer and age, prostate volume, transition zone volume, total PSA, PSA‐ACT or F/T ratio, each function predicting prostate cancer was determined. Relative probabilities for prostate cancer (RPpca) which were defined by combined functions of age, F/T ratio, prostate volume or transition zone volume, and total PSA or PSA‐ACT were calculated. Furthermore, using logistic regression, analysis was performed to determine the probability of prostate cancer. Receiver‐operating characteristic analysis was performed to clarify the areas under the curve (AUC) for conventional single parameters, RPpca and logistic regression probability. Results: F/T ratio showed the largest AUC among conventional parameters. The AUC of RPpca was larger than those of F/T ratio and logistic regression probability. RPpca using the functions of age, transition zone volume, PSA‐ACT and F/T ratio showed the largest AUC and highest specificity at sensitivity 95% level, however, specificities at sensitivity 90% and 85% were identical to those of RPpca using the functions of age, prostate volume, total PSA and F/T ratio. Conclusions: RPpca using the functions of age, transition zone volume, PSA‐ACT and F/T ratio was the best way to detect prostate cancer, however, the usefulness of PSA‐ACT appears limited, considering the cost.