bluuebunny/crossref_metadata_2025_split huggingface dataset:
Role of Fe(III) and Oxalic Acid in the photo-Fenton System for 3-Methylphenol Degradation in Aqueous Solution under Natural and Artificial Light
Authors: Seraghni N. , Dekkiche B.A , Belattar S. , Debbache N. , Sehili T. 
Published: August 2018

Abstract
The Fenton process has been widely studied in the treatment of wastewater but unfortunately this process can only work under acidic pH conditions. To overcome these disadvantages, the Fenton modified by adding chelating agents such as oxalic acid (Ferrioxalate complex (Fe(III)Ox) since its high solubility in aqueous media can broaden the available pH range of the Fenton reaction to near neutral pH. In this study, The photooxidation efficiencies of 3-methylphenol (3MP) catalyzed by Fe(III) and oxalic acid was investigated. The results show that the photodegradation Of 3MP is slow in the presence of Fe(III) or oxalic acid alone. However, it is markedly enhanced when Fe(III)Ox complex coexist. The concentration of the complex is optimized to the ratio ([Fe(III)Ox] = 3/12). Fe(III)Ox plays a positive role in the photo-Fenton system, especially at higher
pH = 5.5. Oxygen is essential to the formation of oxidative species and, as a consequence, for the pollutant degradation. Additionally, the use of tertio-butanol as a scavenger confirmed the intervention of
.
OH in the 3MP photodegradation. 3MP degradation mechanisms have been elucidated and photoproducts are identified by comparison with authentic products. To get closer to the environmental conditions, the effect of main elements present naturally in the aquatic ecosystem such as humic substances and bicarbonates was examined. The photodegradation of 3MP through Fe(III)Ox system under solar light was significantly accelerated in comparison with artificial irradiation at 365 nm. Measuring chemical oxygen demand (COD) leads to mineralization which decreases the toxicity of 3MP solution. This work also demonstrates that this system is an encouraging method for the treatment of organic pollutants in the natural environment.
Implementation of Single-Phase Two-Switch Midpoint Unidirectional Multilevel Converter System
Authors: Roy Peethala Rajiv , Parthiban P. , Chitti Babu B. 
Published: August 2018

Abstract
This paper deals with implementation of a single-phase three level converter system under low voltage condition. The frequency of the switches is made constant and involves change in ${t_{on}}$ and ${t_{off}}$ duration. For this condition the pulse width modulation control scheme for a single phase three level rectifier is developed to improve the power quality. The hysteresis current control technique is adopted to bring forth three-level PWM on the dc side of the bridge rectifier and to achieve high power factor and low harmonic distortion. Based on the proposed control scheme, the line current is driven to follow the sinusoidal current command which is in phase with the supply voltage. By using three-level voltage pattern the blocking voltage of each power device is clamped to half of the dc link voltage. The simulation and experimental results of 20W converter under low input voltage condition are shown to verify the circuit performance. Open loop simulation and hardware tests are implemented by applying a low voltage of 15 V(rms) on the input side.
Maxmize the House Roof PV Solar Output by Using Maximum Power Point Box (MPPB)
Authors: Nassereddine Mohamad , Nagrial Mahmood , Rizk Jamal , Hellany Ali 
Published: August 2018

Abstract
Renewable energy is becoming an essential element when it comes to climate change greenhouse issues. To aid in reducing the CO2 emission into the environment, numerous governments support individual investments in solar system on their residential rooftop. A set of regulations were established by the local utilities to control and manage the input energy power into the grid from the rooftop-installed solar system. One of the main regulation is the maximum allowable size of the single-phase solar inverter. The solar inverter size has direct impact on the maximum PV panels installed on the house rooftop, which control the house maximum electrical output power. In addition, the solar panels are solidly fixed on the house roof, which doesn’t allow to track the sun energy during the day. This also reduces the house output power during a nominal period throughout the day. The study in this paper introduces the maximum power point box that allow the house owner to maximize the output energy during the morning, midday and afternoon period without the need to upgrade the inverter or the single phase system for the house. Also the proposal allows for more efficient building integration between solar panels and building design, which reduces the cost of the proposed system. Case study is also included.
Generalizing Baer’s norm
Authors: Lewis Mark L. , Zarrin M. 
Published: August 2018

Abstract
Let G be a group and n a positive integer. We define

B
n

⁢

(
G
)

{B_{n}(G)}

to be the intersection of the normalizers of all the non-n-subnormal subgroups of G. We give a new characterization for nilpotent groups in terms of a series defined via

B
n

⁢

(
G
)

{B_{n}(G)}

.
Estimation of the hardness of the learning with errors problem with a restricted number of samples
Authors: Bindel Nina , Buchmann Johannes , Göpfert Florian , Schmidt Markus 
Published: August 2018

Abstract
The Learning With Errors (LWE) problem is one of the most important hardness
assumptions lattice-based constructions base their security on. In 2015,
Albrecht, Player and Scott presented the
software tool LWE-Estimator to estimate the hardness of concrete LWE
instances, making the choice of parameters for lattice-based primitives easier
and better comparable.
To give lower bounds on the hardness, it is assumed that
each algorithm has given the corresponding optimal number of samples. However,
this is not the case for many cryptographic applications.
In this work
we first analyze the hardness of LWE instances given a restricted number of
samples. For this, we describe LWE solvers from the literature and estimate
their runtime considering a limited number of samples.
Based on our theoretical results we extend the LWE-Estimator.
Furthermore, we evaluate LWE instances proposed for cryptographic schemes
and show the impact of restricting the number of available samples.
To Overcome the Effects of Self-Phase Modulation in Single-Tone RoF System by Employing SSP Compensation Technique
Authors: Kathpal Namita , Garg Amit Kumar 
Published: August 2018

Abstract
Self-Phase Modulation affects the performance of Radio over Fiber (RoF) system by inducing spectral broadening of the transmitted pulse and thereby produces dispersion. This paper analyses the effects of SPM on optical pulse propagating through the fiber and proposed a SSP (symmetrical-symmetrical-post) compensation technique to overcome the effects of SPM in single-tone RoF system. The simulation results reveal that the pulse broadening due to SPM is reduced by utilizing SSP compensation technique in the transmission channel as it provides a 2 dB increase in OSNR as compared to the conventional compensation technique. The proposed technique provides an optimum result at a bit rate of 40 Gbps and launched power of 10 mW over a transmission distance of 400 km for mitigating SPM effects.
Crystal structure of [4-chloro-2-(((2-((3-ethoxy-2-oxidobenzylidene)amino)phenyl)imino)(phenyl)methyl)phenolato-κ4
N,N′,O,O′}nickel(II) - ethyl acetate (1/1), C32H29ClN2NiO5
Authors: Hong Yong , Liu Wei , Gou Gaozhang 
Published: August 2018

Abstract
C32H29ClN2NiO5, triclinic, P1̄ (no. 2), a = 9.7657(5) Å, b = 10.1262(6) Å, c = 16.0745(9) Å, α = 83.025(2)°, β = 77.437(2)°, γ = 66.240(2)°, V = 1419.02(14) Å3, Z = 2, R
gt(F) = 0.0403, wR
ref(F
2) = 0.0908, T = 293(2) K.
Crystal structure of (4-(4-chlorophenyl)-5-ethyl-1,3-dioxane-5-carboxylato-κ2
O,O′)-(5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane-κ4
N,N′,N′′,N′′′)nickel(II) perchlorate monohydrate, C29H52Cl2N4NiO9
Authors: Liu Fang , Jia Guo-Kai , Ou Guang-Chuan 
Published: August 2018

Abstract
C29H52Cl2N4NiO9, monoclinic, P21/n (no. 14), a =10.8347(19) Å, b = 14.502(3) Å, c = 21.731(4) Å, β = 93.344(2)°, V = 3408.6(10) Å3, Z = 4, R
gt(F) = 0.0360, wR
ref(F
2) = 0.1009, T = 296(2) K.
Crystal structure of 4,4′-(4,10-diphenyl-4,10-dihydropyreno[4,5-d:9,10-d′]diimidazole-5,11-diyl)bis(N,N-diphenylaniline), C66H44N6
Authors: Liu Yulong , Dong Zhaojia , Guo Youquan , Fu Ying 
Published: August 2018

Abstract
C66H44N6, triclinic, P1̄ (no. 2), a = 9.773(2) Å, b = 14.406(3) Å, c = 18.385(4) Å, α = 72.64(3)°, β = 82.10(3)°, γ = 76.90(3)°, V = 2399.5(8) Å3, Z = 2, R
gt(F) = 0.0546, wR
ref(F
2) = 0.1559, T = 153(2) K.
Neurotransmitter- and Release-Mode-Specific Modulation of Inhibitory Transmission by Group I Metabotropic Glutamate Receptors in Central Auditory Neurons of the Mouse
Authors: Curry Rebecca J. , Peng Kang , Lu Yong 
Published: August 2018

Neuromodulation mediated by metabotropic glutamate receptors (mGluRs) regulates many brain functions. However, the functions of mGluRs in the auditory system under normal and diseased states are not well understood. The medial nucleus of the trapezoid body (MNTB) is a critical nucleus in the auditory brainstem nuclei involved in sound localization. In addition to the classical calyx excitatory inputs, MNTB neurons also receive synaptic inhibition and it remains entirely unknown how this inhibition is regulated. Here, using whole-cell voltage clamp in brain slices, we investigated group I mGluR (mGluR I)-mediated modulation of the glycinergic and GABAergic inputs to MNTB neurons in both WT mice and a fragile X syndrome (FXS) mouse model (both sexes) in which the fragile X mental retardation gene 1 is knocked out (Fmr1KO), causing exaggerated activity of mGluR I and behavioral phenotypes. Activation of mGluR I by (RS)-3,5-dihydroxyphenylglycine (3,5-DHPG) increased the frequency and amplitude of glycinergic spontaneous IPSCs (sIPSCs) in both WT andFmr1KO neurons in a voltage-gated sodium channel-dependent fashion, but did not modulate glycinergic evoked IPSCs (eIPSCs). In contrast, 3,5-DHPG did not affect GABAergic sIPSCs, but did suppress eIPSCs in WT neurons via endocannabinoid signaling. In the KO, the effect of 3,5-DHPG on GABAergic eIPSCs was highly variable, which supports the notion of impaired GABAergic signaling in the FXS model. The differential modulation of sIPSC and eIPSC and differential modulation of glycinergic and GABAergic transmission suggest distinct mechanisms responsible for spontaneous and evoked release of inhibitory transmitters and their modulation through the mGluR I signaling pathway.SIGNIFICANCE STATEMENTNeurons communicate with each other through the release of neurotransmitters, which assumes two basic modes, spontaneous and evoked release. These two release modes are believed to function using the same vesicle pool and machinery. Recent works have challenged this dogma, pointing to distinct vesicle release mechanisms underlying the two release modes. Here, we provide the first evidence in the central auditory system supporting this novel concept. We discovered neural-transmitter- and release-mode-specific neuromodulation of inhibitory transmission by metabotropic glutamate receptors and revealed part of the signaling pathways underlying this differential modulation. The results establish the foundation for a multitude of directions to study physiological significance of different release modes in auditory processing.
14-3-3 Proteins Reduce Cell-to-Cell Transfer and Propagation of Pathogenic α-Synuclein
Authors: Wang Bing , Underwood Rachel , Kamath Anjali , Britain Colleen , McFerrin Michael B. , McLean Pamela J. , Volpicelli-Daley Laura A. , Whitaker Robert H. , Placzek William J. , Becker Katelyn , Ma Jiyan , Yacoubian Talene A. 
Published: August 2018

α-Synuclein (αsyn) is the key protein that forms neuronal aggregates in the neurodegenerative disorders Parkinson's disease (PD) and dementia with Lewy bodies. Recent evidence points to the prion-like spread of αsyn from one brain region to another. Propagation of αsyn is likely dependent on release, uptake, and misfolding. Under normal circumstances, this highly expressed brain protein functions normally without promoting pathology, yet the underlying endogenous mechanisms that prevent αsyn spread are not understood. 14-3-3 proteins are highly expressed brain proteins that have chaperone function and regulate protein trafficking. In this study, we investigated the potential role of the 14-3-3 proteins in the regulation of αsyn spread using two models of αsyn spread. In a paracrine αsyn model, 14-3-3θ promoted release of αsyn complexed with 14-3-3θ. Despite higher amounts of released αsyn, extracellular αsyn showed reduced oligomerization and seeding capability, reduced internalization, and reduced toxicity in primary mixed-gender mouse neurons. 14-3-3 inhibition reduced the amount of αsyn released, yet released αsyn was more toxic and demonstrated increased oligomerization, seeding capability, and internalization. In the preformed fibril model, 14-3-3 θ reduced αsyn aggregation and neuronal death, whereas 14-3-3 inhibition enhanced αsyn aggregation and neuronal death in primary mouse neurons. 14-3-3s blocked αsyn spread to distal chamber neurons not exposed directly to fibrils in multichamber, microfluidic devices. These findings point to 14-3-3s as a direct regulator of αsyn propagation, and suggest that dysfunction of 14-3-3 function may promote αsyn pathology in PD and related synucleinopathies.SIGNIFICANCE STATEMENTTransfer of misfolded aggregates of α-synuclein from one brain region to another is implicated in the pathogenesis of Parkinson's disease and other synucleinopathies. This process is dependent on active release, internalization, and misfolding of α-synuclein. 14-3-3 proteins are highly expressed chaperone proteins that interact with α-synuclein and regulate protein trafficking. We used two different models in which toxicity is associated with cell-to-cell transfer of α-synuclein to test whether 14-3-3s impact α-synuclein toxicity. We demonstrate that 14-3-3θ reduces α-synuclein transfer and toxicity by inhibiting oligomerization, seeding capability, and internalization of α-synuclein, whereas 14-3-3 inhibition accelerates the transfer and toxicity of α-synuclein in these models. Dysfunction of 14-3-3 function may be a critical mechanism by which α-synuclein propagation occurs in disease.
Perilaku Pencarian Informasi Pemustaka Dinas Perpustakaan dan Arsip Kabupaten Tangerang
Authors: Hayati Nurul , Sawitri Diaz Mawar 
Published: August 2018

This article is intended to investigate the users’ information seeking behaviour in Dinas Perpustakaan dan Arsip (Perpusip) Kabupaten Tangerang, based on Seven Pillars model. Data are collected by using questionnaire and observation. The result shows that based on Seven Pillars model, the information seeking behaviour of Perpusip Kabupaten Tangerang’s users is high. It can be seen by the indicator mean score that gain 3,0 in Identify, Scope, Plan, Gather, Evaluate, Manage, and Present. Generally, the users’ information seeking behaviour in Perpusip Kabupaten Tangerang correspond with the indicators of Seven Pillars information literacy model. However, there are several indicators are needed to be increased, such as in Gather, Evaluate, and Present. In these indicators, many users still chose “sometimes” in answering the questions.---Tulisan ini bertujuan untuk mengetahui perilaku pencarian informasi pemustaka di Dinas Perpustakaan dan Arsip (Perpusip) Kabupaten Tangerang berdasarkan model Seven Pillars. Jenis penelitian ini adalah penelitian deskriptif dengan pendekatan kuantitatif. Pengumpulan data dilakukan melalui kuesioner dan observasi. Hasil penelitian menunjukkan bahwa perilaku pencarian informasi pemustaka di Perpusip Kabupaten Tangerang berdasarkan model Seven Pillars tergolong tinggi. Hal ini dapat dilihat dari skor rata-rata indikator yang mencapai 3,03, baik dari indikator Mengidentifikasi (Indentify), Cakupan (Scope), Rencana (Plan), Mengumpulkan (Gather), Evaluasi (Evaluate), Mengelola (Manage), dan Menyajikan (Present). Secara umum perilaku pencarian informasi pemustaka di Perpusip Kabupaten Tangerang sudah sesuai dengan indikator-indikator yang ada pada model literasi informasi Seven Pillars. Namun, di sisi lain masih ada beberapa indikator yang perlu mereka tingkatkan, diantaranya yaitu pada indikator Gather, Evaluate dan Present. Pada indikator-indikator tersebut masih banyak pemustaka yang menjawab kadang-kadang pada beberapa pernyataan yang disampaikan. DOI : 10.15408/bat.v24i1.7313
Arsip Sejarah Ormas Islam: Studi Kasus Penyelamatan Arsip Nadhlatul Ulama Dan Muhammadiyah
Authors: Lolytasari Lolytasari , Istiqoriyah Lilik 
Published: August 2018

This article discusses the archives saving of the Islamic organizations in Indonesia as part of the historical development of Islamic syiar in Indonesia, which also shows the important role of Muslims for the progress of the nation. The purpose of this research is to know the saving effort of the archives conducted by two of the largest Islamic social organizations in Indonesia, namely NU and Muhammadiyah. The research uses qualitative approach with case study method. The results show that NU has begun rescue archives by submitting a static archive since 2014, although internal efforts have been made since 1983, while Muhammadiyah has done so since 2012. Structurally, both have specialized agencies whose task is related to this mission; Lakpesdam NU and the Library and Information Council of Muhammadiyah.The Islamic organization archives are also managed by competent human resources in the field supported by activist and intellectual leaders. Thus, it can be concluded that this Islamic mass organization has shown serious concern in saving Islamic archives through development of policy, plan and program procedure of archives.---Artikel ini membahas tentang penyelamatan rekam jejak organisasi Islam di Indonesia sebagai bagian bukti dari sejarah perkembangan syiar Islam di Indonesia, yang juga menunjukkan peran penting umat Islam bagi kemajuan bangsa. Tujuan penelitian ini adalah untuk mengetahui upaya penyelamatan arsip yang tercipta di dua organisasi kemasyarakatan Islam terbesar di Indonesia, yakni NU dan Muhammadiyah. Pendekatan penelitian yang digunakan adalah kualitatif, dengan metode studi kasus. Hasil penelitian menunjukkan bahwa NU telah memulai penyelamatan arsip dengan menyerahkan arsip statis sejak 2014, meskipun upaya internal telah dilakukan sejak 1983, sementara Muhammadiyah telah melakukannya sejak 2012. Secara struktural ke duanya memiliki lembaga khusus yang salah satu tugasnya berkaitan dengan misi ini, masing-masing adalah Lakpesdam NU dan Majelis Pustaka dan Informasi Muhammadiyah. Kearsipan ormas Islam ini juga dikelolah oleh SDM yang berkompeten di bidangnya dengan didukung oleh tokoh-tokoh aktivis dan intelektual. Dengan demikian dapat disimpulkan bahwa ormas Islam ini telah menunjukkan perhatian serius dalam penyelamatan arsip keislaman melalui pengembangan kebijakan, rencana dan prosedur program kearsipan.DOI : 10.15408/bat.v24i1.7362
Effects of employees’ physical and psychological characteristics over manufacturing systems’ performance
Authors: Realyvásquez Arturo , Maldonado-Macías Aide Aracely , Garcia-Alcaraz Jorge Luis 
Published: August 2018

One of the main challenges in Macroergonomics is to develop a universal model to measure macroergonomic compatibility. As a first step to develop such model, it is necessary to validate the construct of macroergonomic compatibility (MC). MC refers to the ability of the different work system components and elements to complement the capabilities and limitations of employees in order to achieve companies’ goals. In that regard, to achieve this step, this paper analyzes the effects of MC of physical and psychological characteristics of employees over the performance of manufacturing systems measured by the clients, production processes, and the organizational performance of companies. Data was obtained from 188 employees of manufacturing systems by means of the Macroergonomic Compatibility Questionnaire (MCQ) in Chihuahua, Mexico. Also, data is analyzed to propose and test a hypothetical causal model of the relationships among the variables by using a Structural Equation Modeling (SEM) approach. Employees’ physical characteristics (weight, height, strength) are considered as independent variable. The highest direct effects values (ß) were found from physical characteristics to psychological characteristics (0,49), from clients to organizational performance (0,45), and from psychological characteristics to motivation and needs. Also, the highest total effects were found from physical characteristics to motivation and needs (0,517) and psychological characteristics (0,488) and from clients to organizational performance (0,454). Results of this model offer relevant knowledge to develop macroergonomic strategies for manufacturing systems in order to increase their competitiveness and support the design and improvement of these systems.
Experimental investigation of 50 MPa reinforced concrete slabs subjected to blast loading
Authors: Mendonça Fausto , Urgessa Girum , Rocco José 
Published: August 2018

This paper presents results from blast tests conducted on four 50 MPa concrete slabs with reinforcement ratios of 0,175% and 0,37%. Two of the slabs were retrofitted with 50 mm thick foam in order to investigate the potential of using the foam as a strengthening option. The slabs were simply supported on two sides. Non-confined PBX (Plastic bonded explosive) was molded with the form of a cylinder measuring 20 cm in height and 10,5 cm in diameter. The explosive was detonated at 2 m stand-off distance. The equivalent TNT mass of the explosive ranges from 2,58 to 2,72 kg for the four tests. Accelerometers, displacement and pressure gages were used to measure blast wave parameters and global response of the slabs. A high-speed digital camera in conjunction with a rugged notebook recorded images. Qualitative and quantitative results are included. Slabs retrofitted with foam showed a different pressure pattern as recorded by the sensors and resulted in higher displacement, acceleration and linear momentum.