bluuebunny/crossref_metadata_2025_split huggingface dataset:
The cocrystal structure of 4-nitropyrazole — acetic acid (1/1), C5H7N3O4
Authors: Yunzhang Liu , Lizhen Chen , Jianlong Wang , Luyao Zhang , Jian Ruan 
Published: August 2019

Abstract
C5H7N3O4, monoclinic, P1̄ (no. 2), a = 5.1166(12) Å, b = 8.711(2) Å, c = 8.744(2) Å, α = 103.169(7)°, β = 90.454(6)°, γ = 96.121(7)°, V = 377.08(16) Å3, Z = 2, R
gt(F) = 0.0619, wR
ref(F
2) = 0.1241, T = 173(2) K.
Frailty and Function in Heart Failure: Predictors of 30-Day Hospital Readmission?
Authors: Keeney Tamra , Jette Diane U. , Cabral Howard , Jette Alan M. 
Published: August 2019

Background and Purpose:
Although there have been decreases noted in 30-day readmission rates for persons with heart failure since enactment of the Hospital Readmissions Reduction Program, costs related to heart failure readmissions remain high. Consequently, there is a need to better identify persons with heart failure who are at risk for 30-day hospital readmission. Therefore, this study aimed to compare the ability of measures of function and frailty to predict 30-day hospital readmissions for adults 65 years and older with heart failure.

Methods:
Secondary data analysis using the 2011 National Health and Aging Trends Study analysis merged with Medicare claims data. Logistic regression modeling was used to compare the ability of function (Short Physical Performance Battery) and frailty (Fried's Physical Frailty Phenotype) to predict 30-day readmission. Receiver operating characteristic curves were constructed to examine the ability of function and frailty to identify those who were readmitted.

Results and Discussion:
Frailty and function demonstrated comparable ability to predict 30-day readmissions (R
2 = 0.087 and R
2 = 0.087, respectively). Neither measure identified persons at risk for readmission (AUCSPPB = 0.608; AUCPFP = 0.587).

Conclusions:
Functional assessment demonstrated comparable ability to predict 30-day readmissions in persons with heart failure compared with frailty. However, neither measure was able to identify persons at high risk for readmission. Although frailty status is emphasized in research for older adults with heart failure, functional status is an important patient-level factor associated with readmission.
Analysis of a Submaximal Cycle Test to Monitor Adaptations to Training: Implications for Optimizing Training Prescription
Authors: Capostagno Benoit , Lambert Michael I. , Lamberts Robert P. 
Published: August 2019

Abstract
Capostagno, B, Lambert, MI, and Lamberts, RP. Analysis of a submaximal cycle test to monitor adaptations to training: Implications for optimizing training prescription. J Strength Cond Res 35(4): 924–930, 2021—The Lamberts and Lambert Submaximal Cycle Test (LSCT) was developed to monitor training adaptation to optimize the training prescription of cyclists. However, it is not known which of the variables within the LSCT are most closely associated with changes in training status. The aim of this study was to retrospectively analyze the LSCT data of cyclists (n = 15) who completed a 2-week high-intensity interval training intervention. The cyclists were retrospectively allocated to 1 of 2 groups based on the change in their 40-km time trial (40-km TT) performance. The “adapters” (n = 7) improved their 40-km TT performance, while the “nonadapters” (n = 8) failed to improve their 40-km TT performance. The variables measured in the LSCT were analyzed to determine which measures tracked the improvements in 40-km TT performance the best. Heart rate recovery increased significantly during the training period in the “adapters” group, but decreased in the “nonadapters” group. Mean power output in stage 2 of the LSCT tended to increase during the high-intensity interval training period in the “adapters” group and was unchanged in the “nonadapters” group. The findings of this study suggest that heart rate recovery and mean power output during stage 2 are the most sensitive markers to track changes in training status within the LSCT.
Transcranial Direct Current Stimulation Does Not Improve Countermovement Jump Performance in Young Healthy Men
Authors: Romero-Arenas Salvador , Calderón-Nadal Giancarlo , Alix-Fages Carlos , Jerez-Martínez Agustín , Colomer-Poveda David , Márquez Gonzalo 
Published: August 2019

Abstract
Romero-Arenas, S, Calderón-Nadal, G, Alix-Fages, C, Jerez-Martínez, A, Colomer-Poveda, D, and Márquez, G. Transcranial direct current stimulation does not improve countermovement jump performance in young healthy men. J Strength Cond Res 35(10): 2918–2921, 2021—The main purpose of this study was to report the effects of transcranial direct current stimulation (tDCS) on countermovement jump (CMJ) performance in young healthy men. Seventeen healthy male subjects volunteered for the study (age: 22.4 ± 2.6 years; body mass: 71.8 ± 8.7 kg; height: 174.6 ± 5.9 cm; and CMJ height: 36.8 ± 6.3 cm). After a familiarization session, subjects underwent 3 experimental conditions, 7 days apart, in a randomized, double-blinded crossover design: anodal, cathodal, and sham tDCS. The stimulation was applied over the dorsolateral prefrontal cortex for 15 minutes. During experimental sessions, subjects completed a warm-up and 3 CMJ trials separated by 1 minute before and after each of the 3 experimental conditions. Countermovement jump height and muscular peak power were extracted from the best CMJ in each moment. A 2-way repeated-measures analysis of variance with time and condition as factors were performed for CMJ height and muscular peak power. Effect size analysis was conducted using Cohen's d coefficient. The analysis did not show either significant main effects or interactions for both time and condition factors in the CMJ performance (p > 0.05). Furthermore, effect size was trivial for all conditions (d: 0.01–0.14) in CMJ height and muscular peak power. These findings suggest that tDCS may not be a valuable tool to improve vertical jump performance.
Effects of Maturation on Physical Fitness Adaptations to Plyometric Jump Training in Youth Females
Authors: Romero Claudio , Ramirez-Campillo Rodrigo , Alvarez Cristian , Moran Jason , Slimani Maamer , Gonzalez Javier , Banzer Winfried E. 
Published: August 2019

Abstract
Romero, C, Ramirez-Campillo, R, Alvarez, C, Moran, J, Slimani, M, Gonzalez, J, and Banzer, WE. Effects of maturation on physical fitness adaptations to plyometric jump training in youth females. J Strength Cond Res 35(10): 2870–2877, 2021—The aim of this study was to compare the effects of maturation on physical fitness adaptations to plyometric jump training (PJT) in youth females. Jumping, sprinting, change of direction speed, endurance, and maximal strength were measured pre-post 6 weeks of PJT in 7th- and 10th-grade subjects. In the seventh grade, subjects formed a PJT group (Plyo-7, n = 10; age, 12.7 ± 0.6 years; breast maturation stages IV [n = 2], III [n = 7], and II [n = 1]) and an active control group (Con-7, n = 9; age, 12.8 ± 0.6 years; breast maturation stages IV [n = 2], III [n = 6], and II [n = 1]). In the 10th grade, subjects conformed a PJT group (Plyo-10, n = 9; age, 16.3 ± 0.5 years; breast maturation stages V [n = 5] and IV [n = 4]) and an active control group (Con-10, n = 9; age, 16.2 ± 0.5 years; breast maturation stages V [n = 5] and IV [n = 4]). Magnitude-based inferences were used for data analysis, with effect sizes (ESs) interpreted as <0.2 = trivial; 0.2–0.6 = small; 0.6–1.2 = moderate; 1.2–2.0 = large; and 2.0–4.0 = very large. The Plyo-7 and Plyo-10 showed meaningful improvements in all physical fitness measures (ES = 0.21–2.22), while Con-7 and Con-10 showed only trivial changes. The Plyo-7 and Plyo-10 showed meaningful (ES = 0.16–2.22) greater improvements in all physical fitness measures when compared with their control counterparts. The Plyo-10 showed meaningful greater improvements in 20-m sprint, 2-km running time trial, maximal strength, squat jump, and drop jump from 20 cm (ES = 0.21–0.42) when compared with Plyo-7. In conclusion, PJT is effective in improving physical fitness in younger and older female youths. However, greater adaptations were observed in more mature subjects.
The Early Hydration Characteristics of Cement-GGBS Pastes Based on Calorimetry and Electrical Resistivity Measurements
Authors: Li Binghao , Xiao Lianzhen 
Published: August 2019

Abstract
The hydration performance of cementitious pastes containing ground granulated blast furnace slag (GGBS) during the first 72 h was studied by the isothermal calorimeter and noncontact resistivity methods. The early electrical resistivity of the cement-GGBS pastes was higher than that of the plain cement paste because of less soluble ions in GGBS particles and higher tortuosity calculated based on the electrical resistivity. However, the cement-GGBS pastes have lower resistivity after the dissolving period, suggesting lower hydration activity of GGBS in 72 h. The hydration heat of the cement-GGBS pastes was always lower than that of the plain cement paste, and the order of the rate of hydration heat of the pastes is the same as that of the rate of the electrical resistivity; the plain specimen has the highest value, the specimens with GGBS have lower values, and the higher GGBS replacement has the lowest test results. GGBS activity in water, CH water, and cement water was investigated. The heat development of the GGBS-water mix shows the increase of 18.75 J/g from 1 to 72 h, which is much lower compared with the GGBS CH-water and GGBS cement-water mixes. The electrical resistivity results show only the dissolution process of GGBS in water. The GGBS in the CH-water solution, which was prepared with CH-to-GGBS ratios of 0.05 at a water-to-GGBS ratio of 0.5, shows obvious reaction activity; the increase value is 119.44 J/g in 72 h. The electrical resistivity shows a lower increase with time than that found with GGBS in the cement-water system. It is found that GGBS has no chemical activity in plain water and has a certain activity with CH. Cement-hydration–dominated electrical resistivity, heat development, and GGBS gave a little contribution during the hydration process. There was a good logarithmic correlation between the electrical resistivity and hydration heat during the deceleration period for the cement-GGBS specimens.
Pemodelan 2D Batuan Bawah Permukaan Daerah Mamuju Sulawesi Barat Dengan Menggunakan Metode Magnetik
Authors: Irsyad Muhammad , Sutrisno Sutrisno , Haryanto Dwi 
Published: August 2019

Abstrak. Batuan merupakan benda yang berasal dari magma yang mendingin di dalam bumi. Untuk mengetahui kondisi batuan perlu di lakukan penelitian. Mamuju merupakan daerah yang sedang hangat dalam perbincangan peneliti tentang bagaimana kandungan di bawah permukaan daerah Mamuju, Sulawesi Barat. Daerah ini juga merupakan daerah yang diteliti oleh instansi-instansi pemerintah termasuk PTBGN-BATAN. Penelitian ini bertujuan untuk melakukan pemodelan bawah permukaan bumi. Tujuannya untuk memberikan informasi tentang kondisi baik itu bentuk maupun kedalaman batuan. penelitian ini menggunakan metode magnetik dan metode ini merupakan metode yang tepat untuk membuat model bawah permukaan bumi. Hasil interpretasi kualitatif diperoleh peta kontur intensitas magnetik total dan anomali magnetik. Peta kontur intensitas magnetik total memiliki nilai sebesar 41286,5 – 42280 nT. Sedangkan anomali magnetik memiliki nilai -760,1 – 231,8 nT. Daerah A dan daerah B merupakan daerah yang memiliki anomali tinggi. Hasil interpretasi kuantitatif didapat ada 4 model bawah permukaan yang masing-masing terdapat batuan yang sama yaitu batuan breksi dengan nilai suseptibilitas 0,0006 – 0,00075 satuan cgs dan batuan lava dengan nilai suseptibilitas 0.001 – 0.0015 satuan cgs. daerah yang dilakukan pemodelan fokus pada daerah Hulu Mamuju, hal ini disebabkan karena menurut peta kontur daerah tersebut merupakan daerah yang memiliki anomali magnetik yang tinggi. Abstract. The rocks are objects derived from the magma cooled in the earth. To determine the condition of the rock is necessary to do research. Mamuju is an area that is warm in conversation investigators about how the content of subsurface area Mamuju, West Sulawesi. This area is also the area investigated by government agencies including PTBGN-BATAN. This study aimed to modeling subsurface. The goal is to provide information about the condition of both the shape and depth of rock. This study uses a magnetic method and this method is an appropriate method to create a model of the earth's subsurface. Qualitative interpretation of results obtained contour map of total magnetic intensity and magnetic anomalies. The total magnetic intensity contour map has a value of 41286.5 to 42280 nT. While the magnetic anomaly has a value of -760.1 - 231.8 nT. Area A and area B is an area that has a high anomaly. Results obtained quantitative interpretation there are 4 models of the subsurface that each contained the same rock is rock breccia with values susceptibility of 0.0006 to 0.00075 cgs units and lava rock with susceptibility value 0.001 - 0.0015 cgs unit. modeling area focuses on upstream area Mamuju, this is because according to the contour map of the area is an area that has a high magnetic anomaly.
Studi Teoritis Pembentukan Momen Magnetik pada Alloy half-Heusler Mn2Ge
Authors: Azhar Anugrah , Majidi Muhammad Aziz 
Published: August 2019

Heusler alloyalloy is a subclass material that consists of transition metal compounds with fascinating magnetic properties due to their magnetic moment value that is still studied by many researchers due to their magnetic moment value that can be predicted using a simple calculation called Slater-Pauling rule (SP rule)s. According to the SP rule, when the total number of the valance electron gives a value of 18 (for half-Heusler alloy), the magnetic momen of this material is predicted by the value of 0 μB. By using this simple calculation, one can make material that have zero magnetic moment value. On the other hand, those this materials generally hasve halfhalf-metallic behavior in which the spin orientation only occurs on the one direction of either in the majority or minority spin channel. Starting from those issues, we propose a theoretical study to investigate the magnetic moment formation of halfhalf-Heusler alloyalloy Mn2Ge. Our results show that Mn2Ge have magnetic moment of 0.03 μB and show the halfhalf-metallic feature of Mn2Ge.
Analysis of Information Interaction Efficiency in Low-Orbit Satellite Constellations
Authors: Karsaev Oleg 
Published: August 2019

The objects of the research are networks and information interactions in low-orbit satellite constellations performing tasks of remote sensing of the Earth. Research of network creation questions in this case is a necessary condition as opportunities and efficiency of information interaction directly depend on opportunities of a network. DTN (Delay-and-Disruption Tolerant Networking) technology is a basis of the network creation and CGR (Contact Graph Routing) approach is a basis of message routing. DTN technology and CGR approach are originally developed and used to provide communication with spacecraft located in a deep space. Therefore, the article discusses issues and problems arising in the context of their use in relation to low-orbit satellite constellations. The purpose of the information interaction study is development of effective interaction schemes (protocols). In the paper, the schemes of information interaction that can be used by a group of satellites in case of autonomous planning are considered. Along with autonomous planning, the paper also considers information interaction that can be used to implement network control of a satellite constellation in the case of ground planning. The effectiveness of the information interaction schemes are assessed by efficiency of orders’ execution. Measurement of efficiency is estimated via simulation of the communication network and the corresponding scheme of information interaction.
Fixation‐off sensitivity in epilepsies other than the idiopathic epilepsies of childhood with occipital paroxysms: a 12‐year clinical‐video EEG study
Authors: Koutroumanidis Michail , Tsatsou Katerina , Sanders Sue , Michael Michael , Tan Stella V. , Agathonikou Alexandros , Panayiotopoulos Chrysostomos P. 
Published: August 2019

ABSTRACTPurposeTo define the spectrum of the epileptic syndromes and epilepsies (other than the idiopathic epilepsies of childhood with occipital paroxysms) that can be associated with fixation‐off sensitivity (FOS), delineate the electrographic types of FOS abnormalities and identify the patterns that can be associated with clinical seizures, and examine whether there may be a pure form of fixation‐off sensitive epilepsy.MethodsWe reviewed the clinical and video EEG data of all our patients with FOS over the last 12 years. Children with idiopathic focal epilepsies and occipital EEG paroxysms were excluded.ResultsFrom January 1995 to December 2006, 19 of about 8,500 patients had had one or more video‐EEGs with FOS, yielding an approximate incidence of 0.2%. From the 14 patients with full clinical and EEG data available, 12 had various epilepsies that included IGE phenotypes (7), symptomatic or probably symptomatic focal (3), cryptogenic generalised (1), and adult onset idiopathic photosensitive occipital (1), and two had no seizures. Seven patients (50%) were photosensitive. FOS EEG abnormalities were occipital in six patients, generalised in eight, and generalised with posterior emphasis in two patients. Seven of these patterns were associated with habitual seizures in seven patients, but actual FOS‐induced seizures (absences) were documented with video EEG in only one patient; three others had some historical evidence suggesting that, under some circumstances, their FOS EEG abnormalities might generate clinical seizures.ConclusionsDespite the association of FOS with generalised and focal, symptomatic and cryptogenic and mild or pharmaco‐resistant epilepsies, closer analysis of our data, and supportive evidence from functional imaging and physiological observations on alpha rhythm generation, disclose a prominent role of the occipital areas, even when FOS EEG abnormalities and seizures are ostensibly generalised. Although FOS appears to be of relatively low epileptogenicity, an electroclinical profile of pure FOS epilepsy may exist [Published with video sequences].
Stressors at the onset of adult epilepsy: implications for practice
Authors: Koutsogiannopoulos Sheila , Adelson Francine , Lee Virginia , Andermann Frederick 
Published: August 2019

ABSTRACT‐ The association between major life events and seizure frequency in patients with chronic epilepsy has previously been suggested in the literature. However, significant life events as precipitating factors for the occurrence of the first seizure have been considered but not documented. Recognition of such triggers may lead to a better understanding of the cause and mechanism of the epilepsy. Using a phenomenological approach, 19 participants were interviewed and recalled the occurrence of significant life events in the year prior to a diagnosis of generalized or focal epilepsy. There were gender and age‐related differences in the types of triggering events, e.g. men tended to specify work related stressors while women generally cited relationship issues. None of the participants reported constraining beliefs about the cause of their epilepsy. Most respondents incorporated their knowledge of seizure triggers into strategies to achieve control of their epilepsy. This study highlights the potential value of questioning possible life stressors as triggers for the onset of epilepsy. Early awareness of high risk factors for seizures may lead to strategies of seizure self control by avoiding situations associated with high risks, improving lives disrupted by the uncertainty of epilepsy.
Antiepileptic drugs and psychopathology of epilepsy: an update
Authors: Mula Marco , Monaco Francesco 
Published: August 2019

ABSTRACTAnti‐epileptic drugs (AEDs) continue to be the mainstay of epilepsy treatment, but the benefits of seizure control need to be weighed carefully against possible adverse effects, which can include behavioral problems and psychiatric disorders. In this paper, the associations between AEDs and psychosis, depression and behavioral changes are reviewed. The concept of forced normalization and its clinical counterpart, alternative psychosis, are also discussed. Depression seems to be linked with AEDs potentiating GABAergic neurotransmission in patients with limbic system abnormalities such as hippocampal sclerosis. Psychoses have been described as associated with several of the new AEDs, and they are often seen in a setting in which previously refractory patients suddenly become seizure‐free. In general terms, the use of AEDs in monotherapy, adopting slow titration schedules and low doses when possible, can significantly reduce the occurrence of behavioral adverse effects. A previous history of psychiatric disorder or a familial predisposition are important risk factors and should be always considered when choosing the appropriate AED.
Epilepsy surgery in the elderly
Authors: Tellez‐Zenteno Jose F. , Sadanand Venkatraman , Riesberry Martha , Robinson Christopher A. , Ogieglo Lissa , Masiowski Paul , Vrbancic Mirna 
Published: August 2019

ABSTRACTBackground. Epilepsy surgery is increasingly well‐supported as an effective treatment for patients with intractable epilepsy. It is most often performed on younger patients and the safety and efficacy of epilepsy surgery in elderly patients are not frequently described. Case report. We report a case of a 75‐year‐old right‐handed man who underwent a left fronto‐temporal craniotomy for resection of a suprasellar meningioma in 2002. Immediately following hospital discharge, he began to experience complex partial seizures. He continued to have frequent seizures despite treatment with multiple combinations of antiepileptic medications. He presented with status epilepticus every two or three months, and required long periods of hospitalization on each occasion for post‐ictal confusion and aphasia. Scalp EEG showed continuous spikes and polyspikes and persistent slowing in the left temporal area, as well as spikes in the left frontal area. EEG telemetry recorded multiple seizures, all with a clear focus in the left temporal area. MRI scan showed an area of encephalomalacia in the left temporal lobe, as well as post‐surgical changes in the left frontal area. Neuropsychological testing showed bilateral memory impairment with no significant cognitive decline expected after unilateral temporal lobe resection. A left anteromesial temporal lobectomy was performed with intraoperative electrocorticography. Since surgery, the patient was not seizure‐free (Engel class II‐b), but had no further episodes of status epilepticus in one year and two months of follow‐up. Conclusions. This is one of the oldest patients reported in the literature with epilepsy surgery and supports the possibility of epilepsy surgery in elderly patients for particular cases. In addition, few cases with such a malignant evolution of temporal lobe epilepsy have been described in this age group.