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opennotspecifiedMay 2020View details →

FIGURE 9. Hymenophyllum palmatifidum—A. Habit. B. Rhizome. C. Sterile frond. D. Sori. T.-C. Hsu 10900 in A newly recorded genus and twelve newly recorded species of ferns for Vietnam from Lang Biang Plateau

FIGURE 9. Hymenophyllum palmatifidum—A. Habit. B. Rhizome. C. Sterile frond. D. Sori. T.-C. Hsu 10900.

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Data from: Genome-wide mapping in a house mouse hybrid zone reveals hybrid sterility loci and Dobzhansky-Muller interactions

Mapping hybrid defects in contact zones between incipient species can identify genomic regions contributing to reproductive isolation and reveal genetic mechanisms of speciation. The house mouse features a rare combination of sophisticated genetic tools and natural hybrid zones between subspecies. Male hybrids often show reduced fertility, a common reproductive barrier between incipient species. Laboratory crosses have identified sterility loci, but each encompasses hundreds of genes. We map genetic determinants of testis weight and testis gene expression using offspring of mice captured in a hybrid zone between M. musculus musculus and M. m. domesticus. Many generations of admixture enables high-resolution mapping of loci contributing to these sterility-related phenotypes. We identify complex interactions among sterility loci, suggesting multiple, non-independent genetic incompatibilities contribute to barriers to gene flow in the hybrid zone.

opencc-zeroDec 2013View details →

opennotspecifiedMar 2012View details →

FIGURE 1. Sarcocornia obclavata. A. Branch. B. Branch with sterile segments. C. Sterile segment. D in Sarcocornia obclavata (Amaranthaceae) a new species from Turkey

FIGURE 1. Sarcocornia obclavata. A. Branch. B. Branch with sterile segments. C. Sterile segment. D. Fertile Segment. Drawn from Holotype by G. N. Tuğ.

opennotspecifiedJan 2014View details →

FIGURE 4. Aulonemia prolifera. A. Habit. B. Sterile branch. C in Three new species of Aulonemia (Poaceae: Bambusoideae) from the Brazilian Atlantic rainforest

FIGURE 4. Aulonemia prolifera. A. Habit. B. Sterile branch. C. Leaf ligular region, emphasizing the fimbriae and pseudopetiole. D. Detail of leaf sheath, with fimbriae along its margin. E–F. Amphipodial rhizome. G. Ramification (Viana 3537). Photographs A–D by C.N. Fraga, E–G by P.L. Viana.

opennotspecifiedAug 2014View details →

FIGURE 6. Vatica kanthanensis. A. Fruiting leaf twig. B. Sterile leafy twig. C. Young twig showing stipules. D in Three New Species from Gunung Kanthan, a Limestone Tower Karst in Perak, Malaysia

FIGURE 6. Vatica kanthanensis. A. Fruiting leaf twig. B. Sterile leafy twig. C. Young twig showing stipules. D. Portion of rachis. E. Hairs on rachis. F. Fruits. (A & C from FRI 81354. B, D & E from FRI 81788. F from FRI 48442.)

Physico-chemical characterization of sterilized Co2.25Fe0.75O4 nanoparticles by XPS / HAXPES / SEM

Here a dataset of XPS, HAXPES and SEM measurements for the physico-chemical characterization of sterilized nanoparticles is presented. The measurements are part of the H2020 project “NanoSolveIT”. Co2.25Fe0.75O4 nanoparticles were provided by Promethean Particles and treated differently by project partners from the University of Birmingham (EMR identifier in the project: ERM00000406, ERM00000448, ERM00000427). The particles were treated by different sterilization methods (autoclave or microwave) and BSA was or was not added as stabilizer. This finally leads to five different samples: pristine, autoclave, microwave, autoclave with BSA, microwave with BSA. Prior to the measurements, the samples were prepared from the solution as drop cast on Si wafers.  First SEM and EDS measurements were performed, followed by XPS and HAXPES measurements on the same samples. Here at first survey spectra were recorded followed by high resolution spectra. For XPS / HAXPES several Si-wafers were mounted together on one platen. The platen was left in the intro chamber of the instrument for several hours before the measurement started. Equipment: SEM images were acquired with a Supra 40 (Zeiss) SEM equipped with a Quantax 400 (Bruker) SDD EDS spectrometer. For X-ray spectroscopy experiments, a combined XPS / HAXPES spectrometer (Quantes from ULVAC-PHI) was used, where XPS is measured at 1486.6 eV (monochromatic Al Kα source) and HAXPES at 5414.9 eV (monochromatic Cr Kα source). Here it is possible to perform the measurements at the exact same position. Data: For SEM, the data are given in .tif format. For XPS / HAXPES the raw data are given as .spe (PHI format) and .npl (VAMAS format) files. The measurement conditions are given in the data files. Naming of data: SEM: sample_treatment (n), with n a consecutive number. XPS / HAXPES:   For the .spe files Pn.m.o.sample_treatment and for the corresponding .npl files: m.npl with Pn: platen-number, m: spectrum number (order of the measurements); o: point-number, of the position on the sample, sample_treatment with "m" for microwave and "a" for autoclave. The authors thank Sigrid Benemann, who performed the SEM measurements.

Physico-chemical characterization of sterilized Co0.75Fe2.25O4 nanoparticles by XPS / HAXPES / SEM

Here a dataset of XPS, HAXPES and SEM measurements for the physico-chemical characterization of sterilized nanoparticles is presented. The measurements are part of the H2020 project “NanoSolveIT”. Co0.75Fe2.25O4 nanoparticles were provided by Promethean Particles and treated differently by project partners from the University of Birmingham (EMR identifiers in the project: ERM00000408, ERM00000450, ERM00000429). The particles were treated by different sterilization methods (autoclave or microwave) and BSA was or was not added as stabilizer. This finally leads to five different samples: pristine, autoclave, microwave, autoclave with BSA, microwave with BSA. Prior to the measurements, the samples were prepared from the solution as drop cast on Si wafers.  First SEM and EDS measurements were performed, followed by XPS and HAXPES measurements on the same samples. Here at first survey spectra were recorded followed by high resolution spectra. For XPS / HAXPES several Si-wafers were mounted together on one platen. The platen was left in the intro chamber of the instrument for several hours before the measurement started. Equipment: SEM images were acquired with a Supra 40 (Zeiss) SEM equipped with a Quantax 400 (Bruker) SDD EDS spectrometer. For X-ray spectroscopy experiments, a combined XPS / HAXPES spectrometer (Quantes from ULVAC-PHI) was used, where XPS is measured at 1486.6 eV (monochromatic Al Kα source) and HAXPES at 5414.9 eV (monochromatic Cr Kα source). Here it is possible to perform the measurements at the exact same position. Data: For SEM, the data are given in .tif format. For XPS / HAXPES the raw data are given as .spe (PHI format) and .npl (VAMAS format) files. The measurement conditions are given in the data files. Naming of data: SEM: sample_treatment (n), with n a consecutive number. XPS / HAXPES:   For the .spe files Pn.m.o.sample_treatment and for the corresponding .npl files: m.npl with Pn: platen-number, m: spectrum number (order of the measurements); o: point-number, of the position on the sample, sample_treatment with "m" for microwave and "a" for autoclave. The authors thank Sigrid Benemann, who performed the SEM measurements.

Physico-chemical characterization of sterilized ZnO nanoparticles by XPS / HAXPES / SEM

Here a dataset of XPS, HAXPES and SEM measurements for the physico-chemical characterization of sterilized nanoparticles is presented. The measurements are part of the H2020 project “NanoSolveIT”. ZnO nanoparticles were provided by Promethean Particles and treated differently by project partners from the University of Birmingham (EMR-Identifiers in the project: ERM00000416, ERM00000458, ERM00000437). The particles were treated by different sterilization methods (autoclave or microwave) and BSA was or was not added as stabilizer. This finally leads to five different samples: pristine, autoclave, microwave, autoclave with BSA, microwave with BSA. Prior to the measurements, the samples were prepared from the solution as drop cast on Si wafers.  First SEM and EDS measurements were performed, followed by XPS and HAXPES measurements on the same samples. Here at first survey spectra were recorded followed by high resolution spectra. For XPS / HAXPES several Si-wafers were mounted together on one platen. The platen was left in the intro chamber of the instrument for several hours before the measurement started. Equipment: SEM images were acquired with a Supra 40 (Zeiss) SEM equipped with a Quantax 400 (Bruker) SDD EDS spectrometer. For X-ray spectroscopy experiments, a combined XPS / HAXPES spectrometer (Quantes from ULVAC-PHI) was used, where XPS is measured at 1486.6 eV (monochromatic Al Kα source) and HAXPES at 5414.9 eV (monochromatic Cr Kα source). Here it is possible to perform the measurements at the exact same position. Data: For SEM, the data are given in .tif format. For XPS / HAXPES the raw data are given as .spe (PHI format) and .npl (VAMAS format) files. The measurement conditions are given in the data files. Naming of data: SEM: sample_treatment (n), with n a consecutive number. XPS / HAXPES:   For the .spe files Pn.m.o.sample_treatment and for the corresponding .npl files: m.npl with Pn: platen-number, m: spectrum number (order of the measurements); o: point-number, of the position on the sample, sample_treatment with "m" for microwave and "a" for autoclave. The authors thank Sigrid Benemann, who performed the SEM measurements.

Physico-chemical characterization of sterilized Co3O4 nanoparticles by XPS / HAXPES / SEM

Here a dataset of XPS, HAXPES and SEM measurements for the physico-chemical characterization of sterilized nanoparticles is presented. The measurements are part of the H2020 project “NanoSolveIT”. Co3O4 nanoparticles were provided by Promethean Particles and treated differently by project partners from the University of Birmingham (EMR identifier in the project: ERM00000405, ERM00000447, ERM00000426). The particles were treated by different sterilization methods (autoclave or microwave) and BSA was or was not added as stabilizer. This finally leads to five different samples: pristine, autoclave, microwave, autoclave with BSA, microwave with BSA. Prior to the measurements, the samples were prepared from the solution as drop cast on Si wafers.  First SEM and EDS measurements were performed, followed by XPS and HAXPES measurements on the same samples. Here at first survey spectra were recorded followed by high resolution spectra. For XPS / HAXPES several Si-wafers were mounted together on one platen. The platen was left in the intro chamber of the instrument for several hours before the measurement started. Equipment: SEM images were acquired with a Supra 40 (Zeiss) SEM equipped with a Quantax 400 (Bruker) SDD EDS spectrometer. For X-ray spectroscopy experiments, a combined XPS / HAXPES spectrometer (Quantes from ULVAC-PHI) was used, where XPS is measured at 1486.6 eV (monochromatic Al Kα source) and HAXPES at 5414.9 eV (monochromatic Cr Kα source). Here it is possible to perform the measurements at the exact same position. Data: For SEM, the data are given in .tif format. For XPS / HAXPES the raw data are given as .spe (PHI format) and .npl (VAMAS format) files. The measurement conditions are given in the data files. Naming of data: SEM: sample_treatment (n), with n a consecutive number. XPS / HAXPES:   For the .spe files Pn.m.o.sample_treatment and for the corresponding .npl files: m.npl with Pn: platen-number, m: spectrum number (order of the measurements); o: point-number, of the position on the sample, sample_treatment with "m" for microwave and "a" for autoclave. The authors thank Sigrid Benemann, who performed the SEM measurements.

Physico-chemical characterization of sterilized CeO2 nanoparticles by XPS / HAXPES / SEM

Here a dataset of XPS, HAXPES and SEM measurements for the physico-chemical characterization of sterilized nanoparticles is presented. The measurements are part of the H2020 project “NanoSolveIT”. CeO2 nanoparticles were provided by Promethean Particles and treated differently by project partners from the University of Birmingham (EMR identifier in the project: ERM00000398, ERM00000440, ERM00000419). The particles were treated by different sterilization methods (autoclave or microwave) and BSA was or was not added as stabilizer. This finally leads to five different samples: pristine, autoclave, microwave, autoclave with BSA, microwave with BSA. Prior to the measurements, the samples were prepared from the solution as drop cast on Si wafers.  First SEM and EDS measurements were performed, followed by XPS and HAXPES measurements on the same samples. Here at first survey spectra were recorded followed by high resolution spectra. For XPS / HAXPES several Si-wafers were mounted together on one platen. The platen was left in the intro chamber of the instrument for several hours before the measurement started. Equipment: SEM images were acquired with a Supra 40 (Zeiss) SEM equipped with a Quantax 400 (Bruker) SDD EDS spectrometer. For X-ray spectroscopy experiments, a combined XPS / HAXPES spectrometer (Quantes from ULVAC-PHI) was used, where XPS is measured at 1486.6 eV (monochromatic Al Kα source) and HAXPES at 5414.9 eV (monochromatic Cr Kα source). Here it is possible to perform the measurements at the exact same position. Data: For SEM, the data are given in .tif format. For XPS / HAXPES the raw data are given as .spe (PHI format) and .npl (VAMAS format) files. The measurement conditions are given in the data files. Naming of data: SEM: sample_treatment (n), with n a consecutive number. XPS / HAXPES:   For the .spe files Pn.m.o.sample_treatment and for the corresponding .npl files: m.npl with Pn: platen-number, m: spectrum number (order of the measurements); o: point-number, of the position on the sample, sample_treatment with "m" for microwave and "a" for autoclave. The authors thank Sigrid Benemann, who performed the SEM measurements.

Physico-chemical characterization of sterilized Fe2O3 nanoparticles by XPS / HAXPES / SEM

Here a dataset of XPS, HAXPES and SEM measurements for the physico-chemical characterization of sterilized nanoparticles is presented. The measurements are part of the H2020 project “NanoSolveIT”. Fe2O3 nanoparticles were provided by Promethean Particles and treated differently by project partners from the University of Birmingham (EMR identifiers in the project: ERM00000410, ERM00000452, ERM00000431). The particles were treated by different sterilization methods (autoclave or microwave) and BSA was or was not added as stabilizer. This finally leads to five different samples: pristine, autoclave, microwave, autoclave with BSA, microwave with BSA. Prior to the measurements, the samples were prepared from the solution as drop cast on Si wafers.  First SEM and EDS measurements were performed, followed by XPS and HAXPES measurements on the same samples. Here at first survey spectra were recorded followed by high resolution spectra. For XPS / HAXPES several Si-wafers were mounted together on one platen. The platen was left in the intro chamber of the instrument for several hours before the measurement started. Equipment: SEM images were acquired with a Supra 40 (Zeiss) SEM equipped with a Quantax 400 (Bruker) SDD EDS spectrometer. For X-ray spectroscopy experiments, a combined XPS / HAXPES spectrometer (Quantes from ULVAC-PHI) was used, where XPS is measured at 1486.6 eV (monochromatic Al Kα source) and HAXPES at 5414.9 eV (monochromatic Cr Kα source). Here it is possible to perform the measurements at the exact same position. Data: For SEM, the data are given in .tif format. For XPS / HAXPES the raw data are given as .spe (PHI format) and .npl (VAMAS format) files. The measurement conditions are given in the data files. Naming of data: SEM: sample_treatment (n), with n a consecutive number. XPS / HAXPES:   For the .spe files Pn.m.o.sample_treatment and for the corresponding .npl files: m.npl with Pn: platen-number, m: spectrum number (order of the measurements); o: point-number, of the position on the sample, sample_treatment with "m" for microwave and "a" for autoclave. The authors thank Sigrid Benemann, who performed the SEM measurements.

Physico-chemical characterization of sterilized Ce0.1Zr0.9O2 nanoparticles by XPS / HAXPES / SEM

Here a dataset of XPS, HAXPES and SEM measurements for the physico-chemical characterization of sterilized nanoparticles is presented. The measurements are part of the H2020 project “NanoSolveIT”. Ce0.1Zr0.9O2 nanoparticles were provided by Promethean Particles and treated differently by project partners from the University of Birmingham (EMR identifier in the project: ERM00000403, ERM00000445, ERM00000424). The particles were treated by different sterilization methods (autoclave or microwave) and BSA was or was not added as stabilizer. This finally leads to five different samples: pristine, autoclave, microwave, autoclave with BSA, microwave with BSA. Prior to the measurements, the samples were prepared from the solution as drop cast on Si wafers.  First SEM and EDS measurements were performed, followed by XPS and HAXPES measurements on the same samples. Here at first survey spectra were recorded followed by high resolution spectra. For XPS / HAXPES several Si-wafers were mounted together on one platen. The platen was left in the intro chamber of the instrument for several hours before the measurement started. Equipment: SEM images were acquired with a Supra 40 (Zeiss) SEM equipped with a Quantax 400 (Bruker) SDD EDS spectrometer. For X-ray spectroscopy experiments, a combined XPS / HAXPES spectrometer (Quantes from ULVAC-PHI) was used, where XPS is measured at 1486.6 eV (monochromatic Al Kα source) and HAXPES at 5414.9 eV (monochromatic Cr Kα source). Here it is possible to perform the measurements at the exact same position. Data: For SEM, the data are given in .tif format. For XPS / HAXPES the raw data are given as .spe (PHI format) and .npl (VAMAS format) files. The measurement conditions are given in the data files. Naming of data: SEM: sample_treatment (n), with n a consecutive number. XPS / HAXPES:    For the .spe and for the corresponding .npl files Pn.m.o.sample_treatment, with Pn: platen-number, m: spectrum number (order of the measurements); o: point-number, of the position on the sample, sample_treatment with "m" for microwave and "a" for autoclave.   The authors thank Sigrid Benemann, who performed the SEM measurements.

opennotspecifiedJul 2023View details →

FIGURE 25. Meriania drakei. A. Terminal sterile branch. B in A synopsis of Meriania (Melastomataceae: Merianieae) in Peru

FIGURE 25. Meriania drakei. A. Terminal sterile branch. B. Flower at anthesis, apical view. C. Flower, petals and stamens removed. D. Infructescence. A and C from R. Fernandez-Hilario et al. 1775; B from R. Fernandez-Hilario et al. 2386; D from R. Fernandez-Hilario et al. 1937. Photos by Robin Fernandez.

opennotspecifiedJul 2023View details →

FIGURE 2. Parablechnum prostratum. A. Habit, B. Juvenile sterile leaf, C. Fertile leaf, D in A new species of Parablechnum (Blechnaceae) with prostrate leaves

FIGURE 2. Parablechnum prostratum. A. Habit, B. Juvenile sterile leaf, C. Fertile leaf, D. Petiole and lamina scales, E. Detail of the rachis showing the aerophores (white circles), F. Cross section of petiole, showing six meristeles (white arrows), G. Detail of the abaxial surface of fertile pinnae, H. Rhizome scale, I. Petiole scale, J-K. Pinna scales. Photos by J. Murillo and L.A. Triana.

opennotspecifiedJul 2023View details →

FIGURE 2. Hanguana sitinurbayai Randi. A. Whole infructescence with sterile and fertile bracts. B in Hanguana sitinurbayai (Hanguanaceae), a new species from mossy montane forest of Gunung Nyiut Penrissen, West Kalimantan, Indonesia

FIGURE 2. Hanguana sitinurbayai Randi. A. Whole infructescence with sterile and fertile bracts. B. Detail of partial infructescence. C. Perianth, and detail of staminodes and staminodial scales. D–E. Ripe fruit, side and top view. F–H. Seed from top, side and front view. All photos by A. Randi from type specimen.

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Six genome assemblies of Drosophila species for: Identification and genetic analysis of a pervasive "needle-eye" sperm phenotype in Drosophila sterile hybrid males

Interspecies hybrid sterility has been extensively studied, especially in the genus Drosophila. Hybrid sterility is more often found in the heterogametic (XX or ZW) sex, a trend called Haldane's rule. Although this phenomenon is pervasive, identification of a common genetic mechanism remains elusive, with modest support found for a range of potential theories. Here, we identify a single precise morphological phenotype, which we call "needle-eye sperm," that is associated with hybrid sterility in three separate species pairs that span the Drosophila genus. The nature of the phenotype indicates a common point of meiotic failure in sterile hybrid males. We used ten generations of backcross selection paired with whole-genome pooled sequencing to genetically map the regions underlying the needle-eye sperm phenotype. Surprisingly, the sterility phenotype was present in ~50% of males even after ten generations of backcrossing, yet the genetic map showed multiple regions associated with sterility, indicating multiple regions may have the capacity to be sufficient to induce sterility in the F1. Due to the common phenotype among sterile male hybrids and the strong effect of individual loci, further exploration of the genes uncovered here may identify a universal mechanism for the evolution of hybrid sterility.

opencc-zeroAug 2023View details →

closedIPD-NOFeb 2026View details →

An Amniotic Membrane Injection Comparing Two Doses (1 mL and 2 mL Injection) and a Placebo (Sterile Saline) in the Treatment of Osteoarthritis of the Knee

ClinicalTrials.gov study NCT04612023. IPD Sharing: NO. Countries: 1. Publications: 2.

restrictedIPD-UNDECIDEDFeb 2026View details →

EMLA and Sterile Water Injections - Pain From Injections

ClinicalTrials.gov study NCT02213185. IPD Sharing: UNDECIDED. Countries: 1. Publications: 1.

controlledIPD-YESFeb 2026View details →

Effect of Sterile Versus Clean Gloves Intrapartum and Postpartum Infections at Term

ClinicalTrials.gov study NCT05603624. IPD Sharing: YES. Countries: 1. Publications: 9.