bluuebunny/crossref_metadata_2025_split huggingface dataset:
Polyandry contributes to Gonipterus platensis (Coleoptera: Curculionidae) rearing
Authors: Ribeiro Murilo Fonseca , Cavallini Gabriela , Solce Gabriel Negri , Favoreto Ana Laura , Passos José Raimundo De Souza , Hurley Brett , Wilcken Carlos Frederico 
Published: August 2024

Background
Gonipterus platensis Marelli, 1926 (Coleoptera: Curculionidae) is one of the main defoliating beetles in Eucalyptus plantations. Biological control with egg parasitoids is one of the main control strategies for this pest and a constant supply of fresh host eggs is required to rear the parasitoids. Polyandry can influence Gonipterus oviposition by increasing female fecundity and fertility; however, the high density of individuals in laboratory colonies can lead to male harassment, resulting in lower reproduction rate. The aim of this study was to measure the effects of monoandry and polyandry on the reproduction of G. platensis and the effects of male harassment on laboratory rearing conditions.

Methods
Reproductive parameters were compared between three treatments: monoandry, where the female was allowed to mate daily with the same male; no choice polyandry, where the female was allowed to mate daily with a different male; and polyandry with choice, where the female was allowed to mate daily, but with a choice between five different males. Another experiment varying the density of males was conducted to evaluate the effect of male harassment.

Results
Polyandry with choice resulted in the longest period of oviposition, highest fecundity and highest number of eggs per egg capsules when compared to monoandrous females. No negative effect related to male harassment in the laboratory, such as decreased fertility, fecundity, or number of eggs per egg capsule, was detected.

Conclusion
Polyandry contributes to mass rearing as it increases fecundity and oviposition period on females and there is no evidence of male harassment on G. platensis.
Comparison of visual quality after wavefront-guided LASIK in patients with different levels of preoperative total ocular higher-order aberrations: a retrospective study
Authors: Zhang Yu , Du Yangrui , He Ming , Zhang Youdan , Du Zhiyu 
Published: August 2024

Purpose
To compare the visual quality after wavefront-guided femtosecond LASIK (WFG FS-LASIK) in patients with different levels of preoperative total ocular higher-order aberrations to guide clinical decision-making regarding patient selection and treatment strategies.

Methods
This study included 112 right eyes of 112 patients who previously underwent WFG FS-LASIK for correcting myopia and myopic astigmatism. The patients were divided into two groups based on the mean values of preoperative total ocular HOAs (0.30 ± 0.09 µm): HOA ≤ 0.3 and > 0.3 groups. The visual acuity, manifest refraction, corneal Strehl ratio (SR), root mean square (RMS) of corneal and ocular aberrations, and area under the log contrast sensitivity function (AULCSF) of both groups were compared preoperatively and at 1, 3, 6, and 12 months postoperatively.

Results
The induced ocular HOAs and coma (Δ = 1 mo − Preop) were significantly lower in the HOAs > 0.3 group than in the HOAs ≤ 0.3 group (ΔHOAs: 0.39 ± 0.19 vs. 0.29 ± 0.18 μm, t = 2.797, P = 0.006; Δ coma: 0.30 ± 0.19 vs. 0.20 ± 0.21 μm, t = 2.542, P = 0.012). In the HOAs > 0.3 group, ΔHOAs were negatively correlated with the preoperative ocular HOAs (r = −0.315, P = 0.019). In the HOAs ≤ 0.3 group, the regression equation for Δ HOAs = 0.098 + 0.053 |SE| (F = 21.756, P < 0.001). In the HOAs > 0.3 group, the regression equation for ΔHOAs = 0.534 − 1.081 HOAs + 0.038|Sphere| (F = 7.954, P = 0.001). The postoperative uncorrected distance visual acuity, spherical equivalent, corneal aberrations, SR and AULCSF of both groups were similar (all P > 0.05). Furthermore, the ocular aberrations were not significantly different between both groups at 3, 6, and 12 months postoperatively (all P > 0.05). In addition, compared with the preoperative period, the AULCSF of both groups were significantly increased in the postoperative period (all P < 0.05).

Conclusions
The induced ocular HOAs and coma in HOAs > 0.3 group were lower. However, both groups achieved equivalent and excellent visual quality after WFG FS-LASIK. WFG FS-LASIK may provide significant visual benefits for a wider range of patients.
Noninvasive Laboratory Exercise Demonstrating Blood Pressure Response to Isometric or Straining Forms of Exercise
Authors: Zidermanis Audris 
Published: August 2024

ABSTRACT
A simple method of demonstrating blood pressure changes during isometric or straining forms of exercise in a teaching laboratory is valuable. Techniques involving cannulation of an artery require patient consent and are time consuming. The present paper describes a technique that uses a Biopac MP30 data acquisition unit, Biopac Student Lab PRO software, and modified sphygmomanometer to determine and analyze systolic and diastolic blood pressures during an isometric contraction; resistance is produced via a modified hydraulic leg press. This method is safe, noninvasive, easily calibrated, and provides a rapid measurement and analysis of the data.
An Action Research Approach to Standardizing the Evaluation of Diagnostic Psychomotor Skills
Authors: Waalen David P. , Waalen Judith K. , Medio Franklin J. 
Published: August 2024

ABSTRACT
The effective evaluation of performance diagnostic skills is essential to determine the clinical competency of students in the health care professions. This study describes an iterative, participatory approach to the development of standardized methods for the evaluation of students' diagnostic psychomotor skills. An action research design was utilized to foster a collaborative appraisal of current performance assessment practices in the context of a faculty development program. This program provided a catalyst for a consensual process that established appropriate performance criteria and developed new evaluation instruments. Statistical comparisons were made between the new and the old assessment instruments with respect to examiner variability. All faculty (n = 10) involved in evaluating diagnostic psychomotor skills, and all students (n = 147) enrolled in the Introductory Diagnosis course were utilized in these comparisons. When compared to the original evaluation instruments (F ratio = 13.69, 9 df, p = 0001), variability among evaluators by instructor group was reduced (F ratio = 2.43, 9 df, p = 01) with the new instruments. Post-hoc significant differences between group means (using the Tukey B) dropped from 20 to only 1 difference. More consistent evaluation of diagnostic psychomotor skills can be accomplished by: clearly defining performance criteria, designing appropriate evaluation instruments, and establishing an iterative process of instruction and feedback for faculty evaluators.
Frequency and Temperature Dependence of Dielectric Behaviors for Conductive Acrylic Composites
Authors: Cetiner Suat , Sirin Seyma , Olariu Marius , Sarac A. Sezai 
Published: March 2015

ABSTRACTIn this study, acrylic‐based conductive polymeric composite thin films were prepared by in situ chemical polymerization of pyrrole (Py) in the case of ammonium persulfate (APS) and iron(III) chloride (FeCl3). Composite thin films were produced by the solution casting method. The effect of polypyrrole (PPy) content and the type of oxidant on the morphological and dielectric properties were investigated. Temperature‐ and frequency‐dependent dielectric properties were also studied in a frequency domain starting from 0.01 Hz to 10 MHz and in a temperature domain from 35 to 195°C. The results revealed that the dielectric constant and dielectric loss increased, whereas temperature and the highest dielectric values were obtained in the case of APS. The density of interconnected pores enwrapped with PPy under the surface improved the electrical/dielectric properties of the composite thin films.
Nickel‐reiche Lithium‐Übergangsmetall‐Schichtverbindungen für Hochenergie‐Lithiumionenakkumulatoren
Authors: Liu Wen , Oh Pilgun , Liu Xien , Lee Min‐Joon , Cho Woongrae , Chae Sujong , Kim Youngsik , Cho Jaephil 
Published: March 2015

AbstractFür Lithiumionenakkumulatoren mit hohen Energiedichten gibt es eine überaus große Nachfrage im Bereich tragbarer elektronischer Geräte und Elektrofahrzeuge. Weil die Energiedichten der Lithiumionenakkumulatoren vor allem vom verwendeten Kathodenmaterial abhängen, wird nach alternativen Kathodenmaterialien mit besserer Lithiumnutzung und höherer spezifischer Energiedichte intensiv geforscht. Insbesondere Ni‐reiche Lithium‐Übergangsmetalloxid‐Schichtverbindungen können höhere Kapazitäten als das klassische LiCoO2 bei geringeren Kosten bereitstellen. Sie gelten als besonders vielversprechend, aber sie bergen noch große Herausforderungen bezüglich Lebensdauer, Wärmestabilität und Sicherheit. Hier wird umfassend beschrieben, wie gezielte Veränderungen an der Struktur oder an den Grenzflächen in einer Leistungssteigerung von Ni‐reichen Kathodenmaterialien resultieren. Die zugrundeliegenden Mechanismen und die noch zu bewältigenden Herausforderungen werden ebenfalls diskutiert.
Reversible 1,1‐Hydroborierung: Borylinsertion in eine C‐N‐Bindung und konkurrierende Eliminierung von entweder HBR2 oder R‐H
Authors: Yang Deng‐Tao , Mellerup Soren K. , Wang Xiang , Lu Jia‐Sheng , Wang Suning 
Published: March 2015

AbstractBorane der allgemeinen Struktur HBR2 reagieren leicht mit Pyrido[1,2‐a]isoindol (A) in Form einer 1,1‐Hydroborierung. Hierbei kommt es durch die Insertion einer BR2‐Einheit in eine C‐N‐Bindung zur Ausbildung eines BN‐Heterocyclus. Die Untersuchung der Thermoreaktivität des BN‐Heterocyclus zeigte, dass die thermische Eliminierung über zwei getrennte, miteinander konkurrierende Routen verläuft: HBR2‐Eliminierung (auch Retrohydroborierung) oder R‐H‐Eliminierung, abhängig vom jeweiligen Rest R am Boratom und vom Chelatgerüst. Der Mechanismus dieser höchst außergewöhnlichen Reaktionen wurde experimentell und durch quantenmechanische Rechnungen untersucht. Die Adduktbildung zwischen HBR2 und A ist hierbei das entscheidende Zwischenprodukt in der 1,1‐Hydroborierung von A.
Eine Mischung deuteriummarkierter Silane als einfache mechanistische Sonde, die ohne Bestimmung von absoluten Konfigurationen auskommt
Authors: Fallon Thomas , Oestreich Martin 
Published: March 2015

AbstractEs wird über die Synthese und den Einsatz einer neuen stereochemischen Sonde für Mechanismen am Siliciumatom eines deuteriummarkierten Silolans berichtet. Der zentrale Syntheseschritt ist die Hydrierung eines 2,5‐Dihydrosilols mit Deuteriumgas, was zu einer komplexen Mischung isochroner Stereoisotopologe führt. Das gesamte stereochemische Ungleichgewicht dieser Mischung ist aus ihrem 2H‐NMR‐Spektrum ersichtlich, und das bietet ein gutes qualitatives Maß für Konfigurationsänderungen am Siliciumatom. Das Verfahren ist schnell, benutzerfreundlich und überwindet die Einschränkungen und Nebeneffekte klassischer Methoden. Die Nützlichkeit dieses neuen Instruments zum Verfolgen des stereochemischen Verlaufs von Bindungsknüpfungen am Siliciumatom wird anhand etlicher klassischer Reaktionen sowie aktueller katalytischer Umsetzungen veranschaulicht.
Strained Cyclooctyne as a Molecular Platform for Construction of Multimodal Imaging Probes
Authors: Sun Yao , Ma Xiaowei , Cheng Kai , Wu Biying , Duan Jianli , Chen Hao , Bu Lihong , Zhang Ruiping , Hu Xianming , Deng Zixin , Xing Lei , Hong Xuechuan , Cheng Zhen 
Published: March 2015

AbstractSmall‐molecule‐based multimodal and multifunctional imaging probes play prominent roles in biomedical research and have high clinical translation ability. A novel multimodal imaging platform using base‐catalyzed double addition of thiols to a strained internal alkyne such as bicyclo[6.1.0]nonyne has been established in this study, thus allowing highly selective assembly of various functional units in a protecting‐group‐free manner. Using this molecular platform, novel dual‐modality (PET and NIRF) uPAR‐targeted imaging probe: 64Cu‐CHS1 was prepared and evaluated in U87MG cells and tumor‐bearing mice models. The excellent PET/NIRF imaging characteristics such as good tumor uptake (3.69 %ID/g at 2 h post‐injection), high tumor contrast, and specificity were achieved in the small‐animal models. These attractive imaging properties make 64Cu‐CHS1 a promising probe for clinical use.
SBA‐15‐Oxynitrides as a Solid‐Base Catalyst: Effect of Nitridation Temperature on Catalytic Activity
Authors: Singh Baljeet , Mote Kaustubh R. , Gopinath C. S. , Madhu P. K. , Polshettiwar Vivek 
Published: March 2015

AbstractSolid bases, such as SBA‐15‐oxynitrides, have attracted considerable interest for potential applications as catalysts in important industrial processes. Reported herein is that by simply tuning the temperature of nitridation (ammonolysis), the catalytic activity of these solid bases can be enhanced. Solid‐state NMR spectroscopy and XPS studies provided the reasoning behind this change in activity.
In Situ Generation of Difluoromethyl Diazomethane for [3+2] Cycloadditions with Alkynes
Authors: Mykhailiuk Pavel K. 
Published: March 2015

AbstractA novel approach to agrochemically important difluoromethyl‐substituted pyrazoles has been developed based on the elusive reagent CF2HCHN2, which was synthesized (generated in situ) for the first time and employed in [3+2] cycloaddition reactions with alkynes. The reaction is extremely practical as it is a one‐pot process, does not require a catalyst or the isolation of the potentially toxic and explosive gaseous intermediate, and proceeds in a common solvent, namely chloroform, in air. The reaction is also scalable and allows for the preparation of the target pyrazoles on gram scale.
Nickel‐Rich Layered Lithium Transition‐Metal Oxide for High‐Energy Lithium‐Ion Batteries
Authors: Liu Wen , Oh Pilgun , Liu Xien , Lee Min‐Joon , Cho Woongrae , Chae Sujong , Kim Youngsik , Cho Jaephil 
Published: March 2015

AbstractHigh energy‐density lithium‐ion batteries are in demand for portable electronic devices and electrical vehicles. Since the energy density of the batteries relies heavily on the cathode material used, major research efforts have been made to develop alternative cathode materials with a higher degree of lithium utilization and specific energy density. In particular, layered, Ni‐rich, lithium transition‐metal oxides can deliver higher capacity at lower cost than the conventional LiCoO2. However, for these Ni‐rich compounds there are still several problems associated with their cycle life, thermal stability, and safety. Herein the performance enhancement of Ni‐rich cathode materials through structure tuning or interface engineering is summarized. The underlying mechanisms and remaining challenges will also be discussed.
Development of Chiral Sulfoxide Ligands for Asymmetric Catalysis
Authors: Trost Barry M. , Rao Meera 
Published: March 2015

AbstractNitrogen‐, phosphorus‐, and oxygen‐based ligands with chiral backbones have been the historic workhorses of asymmetric transition‐metal‐catalyzed reactions. On the contrary, sulfoxides containing chirality at the sulfur atom have mainly been used as chiral auxiliaries for diastereoselective reactions. Despite several distinct advantages over traditional ligand scaffolds, such as the proximity of the chiral information to the metal center and the ability to switch between S and O coordination, these compounds have only recently emerged as a versatile class of chiral ligands. In this Review, we detail the history of the development of chiral sulfoxide ligands for asymmetric catalysis. We also provide brief descriptions of metal–sulfoxide bonding and strategies for the synthesis of enantiopure sulfoxides. Finally, insights into the future development of this underutilized ligand class are discussed.
Air‐Stable (CAAC)CuCl and (CAAC)CuBH4 Complexes as Catalysts for the Hydrolytic Dehydrogenation of BH3NH3
Authors: Hu Xingbang , Soleilhavoup Michèle , Melaimi Mohand , Chu Jiaxiang , Bertrand Guy 
Published: March 2015

AbstractThe first stable copper borohydride complex [(CAAC)CuBH4] [CAAC=cyclic(alkyl)(amino)carbene] bearing a single monodentate ligand was prepared by addition of NaBH4 or BH3NH3 to the corresponding [(CAAC)CuCl] complex. Both complexes are air‐stable and promote the catalytic hydrolytic dehydrogenation of ammonia borane. The amount of hydrogen released reaches 2.8 H2/BH3NH3 with a turnover frequency of 8400 mol molcat−1 h−1 at 25 °C. In a fifteen‐cycle experiment, the catalyst was reused without any loss of efficiency.
Mannose‐6‐Phosphate Receptor: A Target for Theranostics of Prostate Cancer
Authors: Vaillant Ophélie , Cheikh Khaled El , Warther David , Brevet David , Maynadier Marie , Bouffard Elise , Salgues Frédéric , Jeanjean Audrey , Puche Pierre , Mazerolles Catherine , Maillard Philippe , Mongin Olivier , Blanchard‐Desce Mireille , Raehm Laurence , Rébillard Xavier , Durand Jean‐Olivier , Gary‐Bobo Magali , Morère Alain , Garcia Marcel 
Published: March 2015

AbstractThe development of personalized and non‐invasive cancer therapies based on new targets combined with nanodevices is a major challenge in nanomedicine. In this work, the over‐expression of a membrane lectin, the cation‐independent mannose 6‐phosphate receptor (M6PR), was specifically demonstrated in prostate cancer cell lines and tissues. To efficiently target this lectin a mannose‐6‐phosphate analogue was synthesized in six steps and grafted onto the surface of functionalized mesoporous silica nanoparticles (MSNs). These MSNs were used for in vitro and ex vivo photodynamic therapy to treat prostate cancer cell lines and primary cell cultures prepared from patient biopsies. The results demonstrated the efficiency of M6PR targeting for prostate cancer theranostic.
Controlling the Origins of Inflammation with a Photoactive Lipopeptide Immunopotentiator
Authors: Mancini Rock J. , Stutts Lalisa , Moore Troy , Esser‐Kahn Aaron P. 
Published: March 2015

AbstractInflammatory immune responses are mediated by signaling molecules that are both produced by and recognized across highly heterogeneous cell populations. As such, the study of inflammation using traditional immunostimulants is complicated by paracrine and autocrine signaling, which obscures the origin of a propagating response. To address this challenge, we developed a small‐molecule probe that can photosensitize immune cells, thus allowing light‐mediated inflammation. This probe was used to control the origin of inflammation using light. Following this motif, inflammation was initiated from fibroblasts or dendritic cells. The contributions of fibroblasts and dendritic cells in initiating inflammation in heterogeneous co‐culture are reported, thus providing insights into the future development of vaccines and treatment of inflammation.
Crystalline Capsules: Metal–Organic Frameworks Locked by Size‐Matching Ligand Bolts
Authors: Wang Hao , Xu Jian , Zhang Da‐Shuai , Chen Qiang , Wen Rong‐Mei , Chang Ze , Bu Xian‐He 
Published: March 2015

AbstractMetal–organic frameworks (MOFs) are shown to be good examples of a new class of crystalline porous materials for guest encapsulation. Since the encapsulation/release of guest molecules in MOF hosts is a reversible process in nature, how to prevent the leaching of guests from the open pores with minimal and nondestructive modifications of the structure is a critical issue. To address this issue, we herein propose a novel strategy of encapsulating guests by introducing size‐matching organic ligands as bolts to lock the pores of the MOFs through deliberately anchoring onto the open metal sites in the pores. Our proposed strategy provides a mechanical way to prevent the leaching of guests and thereby has less dependence on the specific chemical environment of the hosts, thus making it applicable for a wide variety of existing MOFs once the size‐matching ligands are employed.
A Constellation of Deuterium‐Labeled Silanes as a Simple Mechanistic Probe not Requiring Absolute Configuration Determination
Authors: Fallon Thomas , Oestreich Martin 
Published: March 2015

AbstractA new stereochemical probe for mechanisms at the silicon atom that is based on a deuterium‐labeled silolane is synthesized and evaluated. The key synthetic step involves the hydrogenation of a 2,5‐dihydrosilole with deuterium gas, giving a complex mixture of isochronic stereoisotopologues. The overall stereochemical imbalance of this mixture is evident in its 2H NMR spectrum, which provides a good qualitative measure of changes in the configuration at the silicon atom. The technique is rapid, easy to use, and overcomes limitations and biases of traditional methods. The utility of this new procedure is demonstrated by tracking the stereochemical course of several classical reactions as well as contemporary catalytic transformations involving bond formation at the silicon atom.
Alkyl Aryl Ether Bond Formation with PhenoFluor
Authors: Shen Xiao , Neumann Constanze N. , Kleinlein Claudia , Goldberg Nathaniel W. , Ritter Tobias 
Published: March 2015

AbstractAn alkyl aryl ether bond formation reaction between phenols and primary and secondary alcohols with PhenoFluor has been developed. The reaction features a broad substrate scope and tolerates many functional groups, and substrates that are challenging for more conventional ether bond forming processes may be coupled. A preliminary mechanistic study indicates reactivity distinct from conventional ether bond formation.
A Stable but Highly Reactive Phosphine‐Coordinated Borenium: Metal‐free Dihydrogen Activation and Alkyne 1,2‐Carboboration
Authors: Devillard Marc , Brousses Rémy , Miqueu Karinne , Bouhadir Ghenwa , Bourissou Didier 
Published: March 2015

AbstractBorenium cations have been found to be valuable analogues of boranes as a result of their cationic character which imparts high electrophilicity. Herein, we report the synthesis, characterization, and reactivity of a new type of borenium cation employing a naphthyl bridge and a strong intramolecular P→B interaction. The cation reacts with H2 in the presence of PtBu3 (frustrated Lewis pair (FLP) approach) but also on its own. The mechanism of the reaction between the borenium cation and H2 in the absence of PtBu3 has been investigated using deuterium‐labeling experiments and DFT calculations. Both experiments and calculations imply the side‐on coordination of H2 to the B center, followed by heterolytic splitting and BC bond cleavage. An uncommon syn 1,2‐carboboration has also been observed upon reaction of the borenium ion with 3‐hexyne.
Widening Synthesis Bottlenecks: Realization of Ultrafast and Continuous‐Flow Synthesis of High‐Silica Zeolite SSZ‐13 for NOx Removal
Authors: Liu Zhendong , Wakihara Toru , Oshima Kazunori , Nishioka Daisuke , Hotta Yuusuke , Elangovan Shanmugam P. , Yanaba Yutaka , Yoshikawa Takeshi , Chaikittisilp Watcharop , Matsuo Takeshi , Takewaki Takahiko , Okubo Tatsuya 
Published: March 2015

AbstractCharacteristics of zeolite formation, such as being kinetically slow and thermodynamically metastable, are the main bottlenecks that obstruct a fast zeolite synthesis. We present an ultrafast route, the first of its kind, to synthesize high‐silica zeolite SSZ‐13 in 10 min, instead of the several days usually required. Fast heating in a tubular reactor helps avoid thermal lag, and the synergistic effect of addition of a SSZ‐13 seed, choice of the proper aluminum source, and employment of high temperature prompted the crystallization. Thanks to the ultra‐short period of synthesis, we established a continuous‐flow preparation of SSZ‐13. The fast‐synthesized SSZ‐13, after copper‐ion exchange, exhibits outstanding performance in the ammonia selective catalytic reduction (NH3‐SCR) of nitrogen oxides (NOx), showing it to be a superior catalyst for NOx removal. Our results indicate that the formation of high‐silica zeolites can be extremely fast if bottlenecks are effectively widened.