Publications by authors named "Ganter P"

Introduction: Endometriosis is a common gynaecological disease associated with pelvic pain and subfertility. There are no non-invasive diagnostic tests, medical management requires suppression of oestrogens and surgical removal is associated with risk. Endometriosis is a complex genetic disease with variants in at least 27 genetic regions associated with susceptibility.

View Article and Find Full Text PDF

Objective: To review rates of and indications for late pregnancy feticide at a major Queensland tertiary perinatal centre over the past decade.

Design: Retrospective cohort study.

Setting, Participants: The Centre for Advanced Prenatal Care at the Royal Brisbane and Women's Hospital, a tertiary perinatal centre; feticides of singleton pregnancies of at least 22 weeks' gestation, 1 January 2010 - 31 December 2020.

View Article and Find Full Text PDF

1D photonic crystals (1DPCs) are well known from a variety of applications ranging from medical diagnostics to optical fibers and optoelectronics. However, large-scale application is still limited due to complex fabrication processes and bottlenecks in transferring 1DPCs to arbitrary substrates and pattern creation. These challenges were addressed by demonstrating the transfer of millimeter- to centimeter-scale 1DPC sensors comprised of alternating layers of H Sb P O nanosheets and TiO nanoparticles based on a non-invasive chemical approach.

View Article and Find Full Text PDF

The development of novel, intrinsic two-dimensional (2D) antiferromagnets presents the opportunity to vastly improve the efficiency of spintronic devices and sensors. The strong intrinsic antiferromagnetism and van der Waals layered structure exhibited by the bulk transition-metal oxychlorides provide a convenient system for the synthesis of such materials. In this work, we report the exfoliation of bulk FeOCl into and subsequent characterization of intrinsically antiferromagnetic thin-layer FeOCl nanosheets.

View Article and Find Full Text PDF

Worker size and geographical distribution of red imported fire ants (Solenopsis invicta Buren), black imported fire ants (Solenopsis richteri Forel), and their hybrid (S. invicta × S. richteri) (Hymenoptera: Formicidae) were evaluated from colonies sampled across Tennessee.

View Article and Find Full Text PDF

Harvesting the properties of nanosheets is not only crucial from a fundamental perspective, but also for the development of novel functional devices based on 2D nanosheets. Herein, we demonstrate the processing of organically modified TBA H Ca Nb O nanosheets into photonic thin films and study their colorimetric sensing properties in response to various aqueous and organic solvent vapors. Building on the enhanced solvent accessibility of TBA-containing nanosheets and their photocatalytic activity under UV irradiation, we develop a new concept for photocatalytic lithography using TBA H Ca Nb O nanosheets as a negative photoresist to obtain high-fidelity micron-scale patterns of robust inorganic nanosheets.

View Article and Find Full Text PDF

An approach toward intercalant tunable nanosheet-based Fabry-Pérot sensors is presented. The intercalant tetrabutylammonium significantly increases the sensitivity of the photonic nose sensor to volatile organic compounds with increasing polarity, enabling polarity-driven color-coded vapor differentiation. Paired with the improved millisecond response times for polar vapors, vapor imaging with spatio-temporal resolution is within reach.

View Article and Find Full Text PDF

A 2D nanosheet-based photonic nose for vapor identification is presented. A HSbP2 O8 nanosheet thin-film sensor with resistive readout is developed for the tracking of trace amounts of water, and a photonic HSbP2 O8 /TiO2 multilayer structure is effective at optically distinguishing between chemically similar solvent vapors through analyte-specific host-guest interactions.

View Article and Find Full Text PDF

A new optical touchless positioning interface based on ultrasensitive humidity responsive 1D photonic crystals utilizing the giant moisture dependent swelling capacity of 2D phosphatoantimonate nanosheets is presented. The spatially confined, full spectral color change combined with reversible transparency switching induced by the humidity sheath of a human finger allows for real time, true color lateral finger motion tracking under touchless conditions.

View Article and Find Full Text PDF

Aim: To evaluate whether artificial resin teeth could replace extracted human teeth in pre-clinical endodontic training and if this teaching approach influences the outcome of root canal treatment on patients.

Methodology: In a pre-clinical training course, students of group 1 (n = 44) performed simulated endodontic exercises on four plastic blocks and three extracted human teeth. Students of group 2 (n = 45) performed their exercises on plastic blocks and artificial resin teeth (Real-T Endo, Acadental, Lenexa, KS, USA).

View Article and Find Full Text PDF

In the system Ge-Sn-Sb-Te, there is a complete solid solution series between GeSb2Te4 and SnSb2Te4. As Sn2Sb2Te5 does not exist, Sn can only partially replace Ge in Ge2Sb2Te5; samples with 75% or more Sn are not homogeneous. The joint refinement of high-resolution synchrotron data measured at the K-absorption edges of Sn, Sb and Te combined with data measured at off-edge wavelengths unambiguously yields the element distribution in 21R-Ge(0.

View Article and Find Full Text PDF

Based on the isometric hypothesis, belowground plant biomass (MB) should scale isometrically with aboveground biomass (MA) and the scaling exponent should not vary with environmental factors. We tested this hypothesis using a large forest biomass database collected in China. Allometric scaling functions relating MB and MA were developed for the entire database and for different groups based on tree age, diameter at breast height, height, latitude, longitude or elevation.

View Article and Find Full Text PDF

Aim: To investigate whether the preclinical application of an electronic root canal length measurement device (ERCLMD) leads to more accurate working length (WL) determinations in a preclinical endodontic course and if this exercise effects the technical quality of root canal procedures when treatments are performed on patients for the first time.

Methodology: Root canal treatments performed by two consecutive groups of third year students (group 1: n = 39, group 2: n = 44) were compared in the preclinical course and when root canal treatments were performed on patients in the following term. Two different teaching models were applied in the preclinical endodontic course.

View Article and Find Full Text PDF

Objectives: Caries excavation is still a demanding procedure today. In the past years, methods using light-induced fluorescence have proven their ability to detect bacteria remaining in the tooth's hard tissues. However, methods to control the complete removal of infected dentine have not yet been validated.

View Article and Find Full Text PDF

Over the last decade tissue engineering has emerged as a key factor in bone regeneration within the field of cranio-maxillofacial surgery. Despite this in vivo analysis of tissue-engineered-constructs to monitor bone rehabilitation are difficult to conduct. Novel high-resolving flat-panel based volume CTs (fp-VCT) are increasingly used for imaging bone structures.

View Article and Find Full Text PDF

A novel species of ascomycetous yeast, Candida coquimbonensis sp. nov., from the necrotic tissue of cacti in Chile and Australia is described.

View Article and Find Full Text PDF

A novel species of ascomycetous yeast, Pichia insulana sp. nov., is described from necrotic tissue of columnar cacti on Caribbean islands.

View Article and Find Full Text PDF

Local-circuit gamma-aminobutyric acid (GABA)ergic interneurons constitute a diverse population of cells, which remain poorly defined into functionally distinct subclasses. Traditionally, dendritic and axonal arbors have been used to describe cell classes. In the present report, we characterize a set of hippocampal interneurons, horizontal axo-axonic cells, located in stratum oriens.

View Article and Find Full Text PDF

Many descriptions of yeast species are based on a limited number of strains collected at one time from a single locale. Often, little is known of phenotypic or genotypic variation and covariation within species. We compare 36 strains of an asexual cactophilic yeast, Candida sonorensis, collected from Opuntia cacti.

View Article and Find Full Text PDF

To better understand the role of neurotransmitter receptors in neuronal differentiation and maturation a detailed knowledge of their identity, location and function in the plasma membrane of specific neuronal populations during development is required. Combining pre-embedding immunocytochemistry with cell tracking in embryonic brain slice cultures we show that virtually all neurons (approximately 98%) migrating through the lower intermediate zone (LIZ) on their way from the medial ganglionic eminence to the cerebral cortex, express GABA(B)R1. Blockade of GABA(B)Rs with a specific antagonist, CGP52432, resulted in a concentration-dependent accumulation of these tangentially migrating neurons in the ventricular/sub-ventricular zones (VZ/SVZ) of the cortex and fewer cells were observed in the cortical plate/marginal zone (CP/MZ) and LIZ.

View Article and Find Full Text PDF

Fluorescent amplified fragment length polymorphism analysis demonstrates a high level of gene exchange between Saccharomyces sensu stricto species, with some strains having undergone multiple interspecific hybridization events with subsequent changes in genome complexity. Two lager strains were shown to be hybrids between Saccharomyces cerevisiae and the alloploid species Saccharomyces pastorianus. The genome structure of CBS 380(T), the type strain of Saccharomyces bayanus, is also consistent with S.

View Article and Find Full Text PDF

A new species of yeast from decaying cladodes of Opuntia cactus, Candida orba, is described. This species is a member of a four-species clade of cactophilic yeasts. The new species has only been found in one region of Queensland, Australia, where it was presumably introduced during attempts to eradicate prickly pear cactus.

View Article and Find Full Text PDF

Pichia kluyveri, a sexual ascomycetous yeast from cactus necroses and acidic fruit, is divided into three varieties. We used physiological, RAPD, and AFLP data to compare 46 P. kluyveri strains collected worldwide to investigate relationships among varieties.

View Article and Find Full Text PDF

1. Coherent network oscillations in several distinct frequency bands are seen in the hippocampus of behaving animals. To investigate how different neuronal types within this network respond to oscillatory inputs we made whole-cell current clamp recordings from three different types of neurones in the CA1 region of rat hippocampal slices: pyramidal cells, fast-spiking interneurones and horizontal interneurones, and recorded their response to sinusoidal inputs at physiologically relevant frequencies (1-100 Hz).

View Article and Find Full Text PDF

There is increasing interest in the contribution that axonal damage may make to clinical disability in multiple sclerosis (MS). The present study reports a post-mortem examination of the area occupied by the lateral white matter columns of the spinal cord and nerve fibre density in the corticospinal tracts at C3 and T2 in 23 males and 20 females with MS, who lacked plaques at these levels, and in 31 controls who, although most had had some neurological disease, showed no sign of cervical or spinal cord thoracic disease. The lateral column cross-sectional area, measured by low power image analysis of the outlined lateral columns, was reduced in MS by 17% at C3 and 21% at T2 in males and by 13% at C3 and 18% at T2 in females.

View Article and Find Full Text PDF