bluuebunny/crossref_metadata_2025_split huggingface dataset:
Menjadi Wanita yang Berkualitas, Sehat Organ Reproduksi dengan Memanfaatkan Metode Komplementer di Puskesmas Karang Mulya Kabupaten Bekasi
Authors: Pangaribuan Maslan , Br Karo Marni , Hainun Nisa  , Wiwit Desi Intarti  , Lenny Irmawaty Sirait  , Farida Simanjuntak  , Riyen Sari Manullang  , Dewi Rostianingsih  , Renince Siregar  , Tetty Rina Aritonang  , Puri Kresnawati  , Rupdi Lumban Siantar  , Friska Junita  
Published: March 2024

Menjaga kesehatan organ reproduksi merupakan hal yang penting karena terkait dengan bagaimana kita menjamin keberlangsungan hidup manusia dari generasi ke generasi. Masalah kesehatan reproduksi perlu mendapat sosialisasi yang luas agar para calon ibu mengetahui persoalan reproduksi yang akan dialaminya serta mendapatkan jalan keluar dari persoalan tersebut. Salah satu masalah kesehatan yang menjadi fokus pemerintah dalam penanggulangan anemia pada remaja putri. Anemia pada masa remaja bisa berakibat hingga masa kehamilan, yang menyebabkan ibu hamil mengalami banyak keluhan selama masa kehamilan seperti timbulnya keluhan ketidaknyamanan. Salah satu latihan yang dapat dilakukan oleh ibu hamil untuk mengurangi rasa kurang nyaman pada tubuh adalah prenatal yoga. Hasil penelitian ada perbedaan sebelum dan sesudah dilakukan pendidikan kesehatan hasil analisa dengan menggunakan paired sample t-test dalam hasil P value (0,000) < alpha (0,05). Dapat disimpulkan ada pengaruh setelah dilakukan pendidikan kesehatan terhadap pengetahuan masyarakat tentang prenatal yoga.
CORELLATION BETWEEN KNOWLEDGE LEVEL WITH HIV/AIDS PREVENTION BEHAVIOR AT YADIKA 8 JATIMULYA VOCATIONAL SCHOOL IN 2022
Authors: Desnitamutia Desnita Mutia Sari , Rotua Suriany Simamora  , Nurti Y. K. Gea  
Published: March 2024

Background: The HIV/AIDS epidemic is a problem in Indonesia which is the 5th most at risk of HIV/AIDS in Asia, reports of HIV cases have increased every year since it was first reported in 1987, the most spike in increase was in 2016 compared to 2015 namely of 10,315 cases.
Researcher's Objective: To find out the relationship between knowledge level and HIV/AIDS prevention behavior in Yadika 8 Jatimulya Vocational High School in 2022
Research Method: This research method is quantitative by using a cross sectional design. The population in this study were 110 teenagers at SMK Yadika 8 Jatimulya consisting of grades 10, 11 and 12 majoring in Accounting, Administration and Computer and Network Engineering. by using simple random sampling technique.
Researcher results: Based on the results of research conducted by researchers at SMK Yadika 8 Jatimulya, the results of data processing using SPSS obtained Chi Square statistical test results, namely the Asymp Significance value (0.000) < value (0.05), this indicates that H0 is rejected. this shows that H0 is rejected. Thus, it can be concluded that there is a relationship between the level of knowledge and HIV/AIDS prevention behavior at SMK Yadika 8 Jatimulya in 2022.
Conclusion: There is a relationship between the level of knowledge with HIV/AIDS prevention behavior in SMK Yadika 8 Jatimulya.
Novel titanium complexes bearing two chelating phenoxy‐imine ligands and their catalytic performance for ethylene polymerization
Authors: Sun Junquan , Cheng Zhengzai , Nie Yujing , Schumann H. , Hummert M. 
Published: March 2007

AbstractThree substituted salicylaldimine ligands (1a, 2a, 3a) and their titanium complexes bis[N‐(5‐nitrosalicylidene)‐2,6‐diisopropylanilinato]titanium(IV)dichloride (1), bis[N‐(5‐chlorosalicylidene)‐2,6‐diisopropylanilinato]titanium(IV)dichloride (2) and bis[N‐(5‐bromosalicylidene)‐2,6‐diisopropylanilinato]titanium(IV)dichloride (3) were synthesized and characterized by mass spectra, 1H NMR and elemental analyses, as well as complex 1 by X‐ray structure analysis. In the presence of methylaluminoxane (MAO), 1, 2 and 3 are efficient catalysts for ethylene polymerization in toluene. Under the conditions of T = 60 °C, p = 0.2 MPa, and n(MAO)/n(cat) = 1500, the activities of 1–3 reached 4.55–8.80 × 106 g of PE (mol of Ti h bar)−1, which is much higher than that of the unsubstituted complex bis[N‐(salicylidene)‐2,6‐diisopropylanilinato]titanium(IV)dichloride (4). The viscosity‐average molecular weight of polyethylene ranged from 24.8 × 104 to 44.9 × 104 g/mol for 1–3 and the molecular weight distribution Mw/Mn from 1.85 to 2.34. The effects of reaction conditions on the polymerization were examined in detail. The increase in ethylene pressure and rise in polymerization temperature are favorable for 1–3/MAO to rise the catalytic activity and the molecular weight of polyethylene. Copyright © 2007 John Wiley & Sons, Ltd.
Tetrahydroquinoline and tetrahydroisoquinoline mixed ligand rhenium complexes with the SNS/S donor atom set
Authors: Zablotskaya Alla , Segal Izolda , Lukevics Edmunds , Belyakov Sergey , Spies Hartmut 
Published: March 2007

AbstractNew oxorhenium complexes with 3‐methylazapentane‐1,5‐dithiolate (SNMeS) and thiol functionalized monodentate tetrahydroquinolyl and tetrahydroisoquinolyl derivatives have been synthesized by simultaneous reaction of [PPh3]2[Re(O)Cl3] with tridentate HSNMeSH and the corresponding N‐heterocycle containing thiol. The characterization of complexes involved elemental analysis, IR, 1H and 13C NMR spectroscopy and X‐ray crystallographic analysis. The nature of the heterocycle in monodentate ligand, even situated at the distance of two methylene group length, has been found to have a significant influence on the molecular conformation. Metal complexes were found to be active in psychotropic in vivo and cytotoxicity in vitro screening. Copyright © 2007 John Wiley & Sons, Ltd.
Synthesis, characterization and cytotoxicity evaluation of new cerium(III), lanthanum(III) and neodymium(III) complexes
Authors: Kostova I. , Momekov G. 
Published: March 2007

AbstractComplexes of cerium(III), lanthanum(III) and neodymium(III) with coumarin‐3‐carboxylic acid (HCCA) were synthesized by mixing of equimolar amounts of the respective metal nitrates and coumarin‐3‐carboxylic acid in ethanol. The complexes were characterized and identified by elemental analysis, IR and Raman spectroscopy. DTA and TGA were applied to study the compositions of the compounds. The vibrational study showed bidentate coordination of CCA− to Ln(III) ions through the carbonyl oxygen and the carboxylic oxygen atoms. The newly synthesized compounds were assayed for cytotoxicity against SKW‐3, HL‐60 and Reh cells. The complexes of cerium(III) and lanthanum(III) showed marginal cytotoxic activity against SKW‐3 and Reh cells as compared with the inorganic salts at concentration 200 µM. The complex of neodymium(III) induced approximately 50% reduction of the survival HL‐60 and SKW‐3 cells at concentration 200 µM. Copyright © 2007 John Wiley & Sons, Ltd.
The synthesis, crystal structures and SOD activities of a new ligand (Lse) and Co(Lse)2(SCN)2 complex [Lse = selenium ether bis‐(N‐1‐methyl‐ benzotriazole)]
Authors: Lu Yanchun , Tang Yu , Gao Hong , Zhang Zhihui , Wang Haifeng 
Published: March 2007

AbstractA new ligand containing selenium, Se (CH2‐N‐Btrzole)2 (Lse) (Btrzole = benzotriazole) and its cobalt(II) complex, Co(Lse)2(SCN)2, have been synthesized and the molecular structures of the title compounds have been determined by X‐ray techniques. The Lse is a meso‐configuration with a symmetric plane through the Se center, the intermolecular weak interactions of SeSe, SeN and ππ stacking between benzotriazole rings to extend the molecular structure to two‐dimensional network configuration. In the Co(II) complex, the metal center is in a six‐coordinated octahedral environment. Two Co(II) atoms are linked by two ligands to form a 20‐membered macrocycle; the adjacent macrocycles are linked by coordinated bond of CoNbentrozole to extend an infinite double strained chain. The SOD activity of the ligand and Co(II) complex have been studied by using the pyrogallol autoxidation method; thermal properties and luminescent properties of Co(II) complex have been tested, and the details of those properties have been discussed. Copyright © 2007 John Wiley & Sons, Ltd.
Development of micropost force sensor array with culture experiments for determination of cell traction forces
Authors: Li Bin , Xie Luke , Starr Zane C. , Yang Zhaochun , Lin Jeen‐Shang , Wang James H‐C. 
Published: March 2007

AbstractCell traction forces (CTFs) are critical for cell motility and cell shape maintenance. As such, they play a fundamental role in many biological processes such as angiogenesis, embryogenesis, inflammation, and wound healing. To determine CTFs at the sub‐cellular level with high sensitivity, we have developed high density micropost force sensor array (MFSA), which consists of an array of vertically standing poly(dimethylsiloxane) (PDMS) microposts, 2 μm in diameter and 6 μm in height, with a center‐to‐center distance of 4 μm. In combination with new image analysis algorithms, the MFSA can achieve a spatial resolution of 40 nm and a force sensitivity of 0.5 nN. Culture experiments with various types of cells showed that this MFSA technology can effectively determine CTFs of cells with different sizes and traction force magnitudes. Cell Motil. Cytoskeleton 2007. © 2007 Wiley‐Liss, Inc.
A glucose derivative as natural alternative to the cyclohexane‐1,2‐diamine ligand in the anticancer drug oxaliplatin?
Authors: Berger Isabella , Nazarov Alexey A. , Hartinger Christian G. , Groessl Michael , Valiahdi Seied‐M. , Jakupec Michael A. , Keppler Bernhard K. 
Published: March 2007

AbstractHaving oxaliplatin as archetype, several platinum complexes with a carbohydrate moiety resembling the cyclohexane‐1,2‐diamine ligand of oxaliplatin have been prepared. As leaving groups, the anionic ligands iodide, oxalate, and malonate were utilized, and for comparison purposes the chloro complex was employed. All compounds were characterized by elemental analysis, nuclear magnetic resonance spectroscopy, and electrospray mass spectrometry. The crystal structure of (SP‐4‐3)‐diiodo(2,3‐diamino‐2,3‐dideoxy‐D‐glucose‐κ²N,N′)platinum(II) was determined by X‐ray diffraction. The affinity toward dGMP was assayed by capillary electrophoresis, revealing that the chloro complex shows the highest reactivity, followed by the iodo complex. In contrast, the binding kinetics of the dicarboxylato complexes are slower, with the malonato complex being the least reactive. Reactivity to dGMP in the cell‐free system correlates with cytotoxicity in two of four human cancer cell lines as determined by means of the MTT assay. In three of the four cell lines, the chloro and the malonato complex are the most and the least active of the carbohydrate‐Pt complexes, respectively, with IC50 values differing only by factors of up to 3.2. Cytotoxicity of the chloro complex is one to two orders of magnitude lower than that of oxaliplatin, but still comparable to that of carboplatin in two of the four cell lines.
Echoes—how to generate, recognize, use or avoid them in MR‐imaging sequences. Part II: Echoes in imaging sequences
Authors: Hennig Jürgen 
Published: March 2007

AbstractPart I of this sequence of two papers on spin echoes introduced the echo phenomenon and presented the extended‐phase‐graph algorithm for the description of signals arising in the multi‐pulse sequences. In Part II, pulse sequences that are commonly used in MR imaging are discussed with the use of this algorithm. First, it is shown that phase graphs easily demonstrate how a proper multi‐echo imaging experiment should be designed. Then, they are used to shed some light on the signal behavior of gradient‐echo sequences. Finally, some hints are given about how to avoid or use spurious echoes in more general multi‐pulse sequences.
In‐plane spatial encoding in MRI and its central role in determining contrast and artifact with RF echo planar techniques
Authors: Mulkern Robert 
Published: March 2007

AbstractGenerating a magnetic resonance image requires that all three spatial dimensions of a spin system somehow get encoded into NMR signals. Although there are many ways this can be done, by far the most common is to restrict the excitation to a slice with the use of frequency‐selective radio frequency (rf) pulses in the presence of a magnetic field gradient and to encode the remaining two spatial dimensions into echo signals with two mutually orthogonal „in‐plane”︁ gradients. In the standard scheme, spins along one in‐plane dimension are localized by receiving the echo signal in the presence of a „read‐out”︁ gradient. Spins along the other in‐plane dimension are localized with the use of „phase‐encoding”︁ gradients of different amplitudes applied for short periods prior to each readout. Just how these processes yield a data set whose two‐dimensional (2D) Fourier transformation represents the spin density within the selected slice is a major topic of this discussion. A topical extension, to rf echo planar methods in which the usual phase‐encoding process is accelerated with the use of multiple echoes, is also presented. The effects on image contrast and artifact when different echoes are used for distinct phase‐encoding steps in the presence of T2 decay (the spin‐spin relaxation time) are analyzed and illustrated.
Creating multiple‐quantum coherences in solids
Authors: Gleason K. K. 
Published: March 2007

AbstractThe observation that multiple‐quantum (MQ) coherence size will saturate in a finite network of strongly coupled nuclear dipoles has proved useful in characterizing such materials as semiconductors, catalysts, and polymers. However, even when the size of the coherence does not reach a plateau, the dynamics of MQ growth can provide insight about the distribution and motion of such nuclei as 1H and 19F in solids. This article builds a relatively simple physical picture of MQ‐NMR in terms of the angular momentum operators and eigenstates of individual nuclear spins. The predictive power of this framework is examined for interpreting the behavior of large numbers of dipole‐coupled nuclei. Some nuts‐and‐bolts aspects of implementing MQ spectroscopy in the laboratory also are discussed.
Low‐temperature NMR techniques
Authors: Conradi Mark S. 
Published: March 2007

AbstractThe techniques for NMR measurements at temperatures of 1‐120 K are discussed. Various cryogenic methods for attaining low temperatures are compared. Several designs and design criteria for the construction of low‐temperature NMR probes are presented. This article is intended to assist workers first entering the field of low‐temperature NMR.
An introduction to chemically induced dynamic nuclear polarization
Authors: Goez Martin 
Published: March 2007

AbstractMeasurements of chemically induced dynamic nuclear polarization (CIDNP) often yield valuable and otherwise unavailable information about the mechanisms of chemical reactions. The purposes of this article are to explain the fundamentals of this spectroscopic technique in elementary terms and to show what kind of information a chemist can get by using this method. After a description of a few introductory experiments, the radical‐pair mechanism is treated in detail. From an analysis of two simple systems, Kaptein's rules for CIDNP net and multiplet effects are derived. The advantages and limitations of CIDNP for the study of chemical reactions are discussed, and practical hints for CIDNP experiments are given.
Product operators, coherence pathways, and phase cycling. Part II. coherence pathways in multipulse sequences: spin echoes, stimulated echoes, and multiple‐quantum coherences
Authors: Kingsley Peter B. 
Published: March 2007

AbstractThe Compact Cartesian Coordinate Product‐Operator (C3PO) descriptions of an uncoupled spin I = ½ in one‐pulse, two‐pulse, and three‐pulse sequences are presented. The properties of free induction decays, spin echoes, double spin echoes, and stimulated echoes are discussed. Vector pictures of a 90°–90° spin echo and a stimulated echo are presented. The C3PO descriptions of IS and I3 S spin systems in multipulse sequences are also discussed, including polarization transfer and multiple‐quantum coherences. Suggestions for optimizing one coherence pathway and minimizing others are provided.
Density matrix theory for calculating magnetization transfer and dynamic lineshape effects
Authors: Johnston Eric R. 
Published: March 2007

AbstractNMR is a powerful tool for the study of chemical rate processes and the mechanisms by which they occur. Dynamic processes give rise to characteristic changes in transverse and longitudinal relaxation, which manifest themselves in the NMR lineshape and in magnetization transfer phenomena, respectively. Analysis of these effects permits the extraction of kinetic data. The mathematical theory central to this analysis is illustrated using the formalism of the density matrix for a two‐spin system undergoing mutual intramolecular exchange in isotropic solution. The spin Hamiltonian and exchange operators are introduced, and the quantum mechanical equation of motion of the density matrix is presented, emphasizing those density matrix elements that correspond classically to longitudinal and transverse magnetization. The necessary Liouville and exchange superoperators are explicitly constructed from the corresponding Hamiltonian and exchange operators using tensor algebra. The equation of motion is then solved for the populations and single‐quantum coherences to illustrate the origin of magnetization transfer and dynamic lineshape effects. The extension of the theory to arbitrarily large exchanging spin systems is addressed and illustrated for two mutually exchanging spins scalar coupled to a third spin. Finally, the two‐spin lineshape calculation is fully worked out using a steady‐state method that reduces the problem to the solution of a set of simultaneous algebraic equations.
Reconstruction of dopaminergic neural network and locomotion function in planarian regenerates
Authors: Nishimura Kaneyasu , Kitamura Yoshihisa , Inoue Takeshi , Umesono Yoshihiko , Sano Shozo , Yoshimoto Kanji , Inden Masatoshi , Takata Kazuyuki , Taniguchi Takashi , Shimohama Shun , Agata Kiyokazu 
Published: March 2007

AbstractPlanarian, an invertebrate flatworm, has a high capacity for regeneration when compared with other worms and animals. We show here for the first time that the reconstructed dopamine (DA) neural network regulates locomotion and behavior in planarian regenerates. The gene encoding tyrosine hydroxylase in the planarian Dugesia japonica (DjTH) was identified. DjTH protein was coexpressed with aromatic amino acid decarboxylase‐like A (DjAADCA) in the planarian central nervous system (CNS). In addition, DjTH‐knockdown planarians lost the ability to synthesize DA, but showed no change in 5‐hydroxytryptamine synthesis. When the planarian body was amputated, DjTH‐positive neurons were regenerated in the brain newly rebuilt from the tail piece at Day 3, and the DjTH‐positive axonal and dendritic neural network in the CNS (dopaminergic tiara) was reconstructed at Days 5–7. At that time, autonomic locomotion and methamphetamine‐induced hyperkinesia were also suppressed in DjTH‐knockdown planarians. Planarian locomotion and behavior seem to be regulated in both cilia‐ and muscle‐dependent manners. In DjTH‐knockdown planarians, muscle‐mediated locomotion and behavior were significantly attenuated. These results suggest that DA neurons play a key role in the muscle‐mediated movement in planarians. © 2007 Wiley Periodicals, Inc. Develop Neurobiol, 2007.
Adult‐generated neurons exhibit diverse developmental fates
Authors: Whitman Mary C. , Greer Charles A. 
Published: March 2007

AbstractIn mammals, olfactory bulb (OB) interneurons, granule cells and periglomerular (PG) cells, are generated throughout adulthood. PG cells comprise a heterogeneous population in both morphology and molecular phenotypes. It is unknown whether adult genesis of PG cells occurs among all subtypes or is limited to a subpopulation. We show that within 2 weeks after retroviral labeling in the subventricular zone, two morphological populations of PG cells are found in the OB, one with large multi‐glomerular dendritic arbors, and one with dendritic arbors limited to one or two glomeruli. On both types, immature dendritic spines are first evident at 4 weeks and mature, pedunculated spines by 6 weeks. To differentiate PG subpopulations we used expression of calcium binding proteins, GAD67 and tyrosine hydroxylase as markers. Among adult‐born BrdU labeled cells, all molecular subtypes were represented, although GAD67 and tyrosine hydroxylase expressing cells were overrepresented proportional to their expression in the total PG cell population. During the time when spines are maturing, approximately half the PG cells are lost, in roughly equal proportions to their generation. Our data show the diverse developmental potential of SVZ neuroblasts and suggest that integration into synaptic circuits is necessary for survival. © 2007 Wiley Periodicals, Inc. Develop Neurobiol, 2007.
Correlation between the Stoichiometry and the Bistability of Electronic States in Valence‐Tautomeric RbxMn[Fe(CN)6]y·zH2O Complexes
Authors: Cobo Saioa , Fernández Raquel , Salmon Lionel , Molnár Gábor , Bousseksou Azzedine 
Published: March 2007

AbstractA series of Prussian blue analogues, RbxMn[Fe(CN)6]y·zH2O with different stoichiometries have been synthesized. Elemental analyses reveal a quasilinear decrease in x and y when z increases. Some of these samples present a first‐order phase transition between the MnII–FeIII and MnIII–FeII electronic states with large thermal hysteresis loops observed in the magnetic susceptibility. The phase‐transition temperatures correlate with the stoichiometry, but quantitative predictions cannot be made because of the disordered nature of the compounds. Contrary to previous literature reports, calorimetric and Raman spectroscopic measurements reveal that the charge‐transfer phase transition is accompanied by a significant entropy change, ΔS = 48–59 J K–1 mol–1, of mainly vibrational origin. In addition to the thermal phase transition, Raman spectra also show that below ca. 120 K a photoinduced MnIII–FeII to MnII–FeIII conversion occurs in certain stoichiometries.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)