bluuebunny/crossref_metadata_2025_split huggingface dataset:
Optimization of Sowing Date, Irrigation, and Nitrogen Management of Summer Maize Using the DSSAT-CERES-Maize Model in the Guanzhong Plain, China
Authors: Shen Hongzheng , Xu Fangping , Zhao Rongheng , Xing Xuguang , Ma Xiaoyi 
Published: July 2020

HighlightsGood applicability of DSSAT was validated in simulating summer maize yield in the Guanzhong Plain, China.Optimal sowing dates of summer maize were obtained for different climatic years.The optimal irrigation and nitrogen management strategy conserved water and nitrogen. Abstract. Agricultural system models play an important role in simulating crop growth processes and water and fertilizer regulation in arid regions. To solve the current problems of optimizing the sowing date in different climatic years and the fertilizer application in low-precipitation conditions in the Guanzhong Plain, China, this study used two years (2016-2017) of experimental summer maize field data to calibrate and validate Decision Support System for Agro-technology Transfer (DSSAT) model parameters. The validated DSSAT model was then used to simulate and optimize sowing dates, irrigation, and fertilization of summer maize crops in the Guanzhong Plain. The relative root-mean-square error (nRMSE) between the measured and simulated values of summer maize crop yield was 8.57%, proving that the established DSSAT model and crop parameters were highly reliable. The nRMSE values for soil water content and nitrate-nitrogen were 7.86% and 8.72%, respectively, which indicated better simulation results. The optimal sowing date for summer maize in the Guanzhong Plain were mid- to late June, mid-June, and early to mid-June in wet, general, and dry years, respectively. The irrigation and nitrogen strategies for summer maize in the climatic years were as follows: 60 mm and 180 kg ha-1 in wet years, 60 mm and 180 kg ha-1 in general years, and 150 mm and 150 kg ha-1 in dry years. This study provides a scientific decision-making method for the production of summer maize to conserve water and fertilizer. Keywords: . Climatic year, DSSAT, Guanzhong Plain, Sowing date, Summer maize.
Kinetic studies on the adsorption of phenol from aqueous solution by coffee husk activated carbon
Authors: Ta Huu Son , Le Van Khu , Luong Thi Thu Thuy , Ha Thanh Hoa 
Published: July 2020

The kinetics of phenol adsorption from aqueous solution on activated carbons (ACs) obtained from coffee husk by potassium Hydroxide (KOH) activation at 650 and 750<sup>o</sup>C have been studied in the range of 100-250 mg L<sup>-1</sup> initial phenol concentrations and at the temperatures range of 10 – 40<sup>o</sup>C. Kinetic models for phenol adsorption were evaluated using pseudo-first-order, pseudo-second-order, and Elovich models. The adsorption mechanism was investigated using Reichenberg, Boyd, and Weber and Morris models. The adsorption on coffee husk activated carbon was found to be a fast or speedy process with the adsorption rate, k<sub>2</sub>q<sub>e</sub>, in the range of 0.130 to 0.977 min<sup>-1</sup>. The adsorption process was mainly physical and promoted by chemical sorption and controlled not only by intra-particle diffusion but also by pore diffusion throughout the entire adsorption period.
Picostrain-resolution fiber-optic sensing down to sub-10  mHz infrasonic frequencies
Authors: Hoque Nabil Md Rakinul , Duan Lingze 
Published: July 2020

High-resolution strain sensing based on long, high-finesse fiber Fabry–Perot interferometers (FFPIs) has been demonstrated with a special focus on the infrasonic frequency range. A novel dual-FFPI scheme allows the large environment-induced background at low frequencies to be suppressed, permitting high strain resolution limited only by excess electronic noise. Noise-equivalent strain resolution of257pε/√Hzhas been achieved at 6 mHz, and the resolution improves to∼200fε/√Hzbetween 4–20 Hz. Without the use of any additional optical frequency references and with only off-the shelf commercial components, these resolutions are much better than most in the prior reports. Especially, an improvement of a factor of 1.8 is achieved in comparison with the highest resolution reported so far near 5 Hz. The limiting factors of the current scheme have been analyzed in detail, and the application prospects have been demonstrated using an acoustic transducer. The work lays out the potential of using long FFPIs with high finesse for high-resolution fiber-optic sensing in the infrasonic frequency range.
Cost-minimizing distribution matching supporting net 800  Gbit/s PS-PAM transmission over 2  km using a 4-λ EML TOSA
Authors: Li Xueyang , Xing Zhenping , Alam Md Samiul , Jacques Maxime , Koh Ping-Chiek , Plant David V. 
Published: July 2020

Probabilistic shaping (PS) allows tunable spectral efficiency that is suitable for realizing high throughput intra-data center transceivers. In this Letter, we integrate the cost-minimizing distribution matching (CMDM) in the probability amplitude shaping scheme to generate PS-PAM signals with ultra-short symbol block lengths for reduced serial processing delay. We detail the principle of CMDM and present two different methods of implementation. We demonstrate that CMDM enables the transmission of single wavelength net 200 Gbit/s PS-PAM-8 over 2 km of single-mode fiber (SMF). We show that similar performance is achievable using a constant composition distribution matcher, yet requiring 10 times longer symbol block lengths. We also report, to the best of our knowledge, the first demonstration of net 800 Gbit/s transmission over 2 km of SMF using a packaged

4
-
λ

electro-absorption modulated laser transmitter optical sub-assembly (TOSA).
Noise amplification in all-normal dispersion fiber supercontinuum generation and its impact on ultrafast photonics applications
Authors: Sierro Benoît , Heidt Alexander M. 
Published: July 2020

Highly coherent and low-noise supercontinuum (SC) sources based on nonlinear spectral broadening of femtosecond pulses in all-normal dispersion (ANDi) fibers are attractive for many applications in ultrafast photonics. By simulating a real nonlinear pulse compression experiment, we numerically investigate the impact of shot noise and technical pump laser fluctuations on the quality and stability of single-cycle pulse generation and other multi-shot experiments based on the manipulation of the SC spectral phase. We find that for pump pulse durations of less than 600 fs, input relative intensity noise < 1 %, and correctly chosen fiber lengths, the initial fluctuations of the pump laser are at most amplified by a factor of three. We also show that the usual strong correlation between SC coherence and quality of the compressed pulses collapses in the presence of technical noise, and that in this situation the coherence is not a useful figure of merit to quantify pulse quality, noise amplification, or decoherence due to incoherent nonlinear dynamics. Our results highlight the very limited impact of technical pump laser noise on ANDi SC generation and are of practical relevance for many ultrafast photonics applications that require high-quality, low-noise SC sources.
Flexible microbubble-based Fabry–Pérot cavity for sensitive ultrasound detection and wide-view photoacoustic imaging
Authors: Ma Jun , He Yang , Bai Xue , Sun Li-Peng , Chen Kai , Oh Kyunghwan , Guan Bai-Ou 
Published: July 2020

Interaction of acoustic waves and microbubbles occurs in numerous biomedical applications including ultrasound imaging, drug delivery, lithotripsy treatment, and cell manipulation, wherein the acoustically driven microbubbles routinely act as active microscale oscillators or actuators. In contrast, microbubbles were utilized here as passive receivers to detect broadband ultrasound waves in aqueous environments. The microbubble was photothermally generated on a microstructured optical fiber (MOF) tip, forming a flexible Fabry–Pérot cavity whose gas–water interface was sensitive to ultrasound waves. The MOF severed as both a low-loss waveguide and a compact light condenser, allowing high-efficiency generation and stabilization of ultrasmall microbubbles. Integrated with all-fiber interferometry, a 10 μm diameter microbubble exhibited a low noise-equivalent pressure level of

∼
3.4

mPa
/

Hz

1
/
2

and a broad bandwidth of

∼
0.8

MHz

, capable of detecting weak ultrasounds emitted from red blood cells irradiated by pulsed laser light. With advantages of high sensitivity, compact size, and low cost, the microbubble-based ultrasound sensor has great potential in biomedical imaging and sensing applications.
Strong optical force of a molecule enabled by the plasmonic nanogap hot spot in a tip-enhanced Raman spectroscopy system
Authors: Long Li , Chen Jianfeng , Yu Huakang , Li Zhi-Yuan 
Published: July 2020

Tip-enhanced Raman spectroscopy (TERS) offers a powerful means to enhance the Raman scattering signal of a molecule as the localized surface plasmonic resonance will induce a significant local electric field enhancement in the nanoscale hot spot located within the nanogap of the TERS system. In this work, we theoretically show that this nanoscale hot spot can also serve as powerful optical tweezers to tightly trap a molecule. We calculate and analyze the local electric field and field gradient distribution of this nanogap plasmon hot spot. Due to the highly localized electric field, a three-dimensional optical trap can form at the hot spot. Moreover, the optical energy density and optical force acting on a molecule can be greatly enhanced to a level far exceeding the conventional single laser beam optical tweezers. Calculations show that for a single

H

2

TBPP

organic molecule, which is modeled as a spherical molecule with a radius of

r
m

=
1

nm

, a dielectric coefficient

ε
=
3

, and a polarizability

α
=
4.5
×

10

−
38

C
·

m

2

/
V

, the stiffness of the hot-spot trap can reach a high value of about

2

pN
/
[
(
W
/

cm

2

)
·
m
]

and

40

pN
/
[
(
W
/

cm

2

)
·
m
]

in the direction perpendicular and parallel to the TERS tip axis, which is far larger than the stiffness of single-beam tweezers,

∼
0.4

pN
/
[
(
W
/

cm

2

)
·
m
]

. This hard-stiffness will enable the molecules to be stably captured in the plasmon hot spot. Our results indicate that TERS can become a promising tool of optical tweezers for trapping a microscopic object like molecules while implementing Raman spectroscopic imaging and analysis at the same time.
A Novel Local Temperature-Controlled Apparatus for Thermal Effect on Dynamic Properties of Soft Clay
Authors: Wang Haibo , Zhou Changtai , Ji Jingyu 
Published: July 2020

Abstract
To investigate the thermal effect on soft clay, a novel local temperature-controlled device is presented based on an advanced dynamic triaxial testing system. Then, a calibration study is carried out to verify the robustness and effectiveness of the designed temperature-controlled apparatus. Preliminary tests show that the developed apparatus can achieve temperature uniformity with a temperature control ranging from −16°C to 80°C with an accuracy of 0.1°C and temperature uniformity. In addition, the heating and cooling speeds are in the range of 0°C∼1.117°C/min and −0.533°C∼0°C/min, respectively. Finally, the temperature-controlled apparatus is employed to investigate the axial cumulative plastic strain and cumulative pore pressure of soft clay through cyclic triaxial tests from low temperatures to high temperatures. A negative relationship is found between the axial plastic strain and temperature. Similarly, the temperature shows a significant effect on the cumulative excess pore water pressure mainly when N &gt; 3,000, and a negative relationship between Rus and the temperature is also found.
Laboratory Tests on Mitigation of Soil Liquefaction Using Microbial Induced Desaturation and Precipitation
Authors: Wang Liya , van Paassen Leon , Gao Yunqi , He Jia , Gao Yufeng , Kim Daehyun 
Published: July 2020

Abstract
Microbial induced desaturation and precipitation (MIDP) is an emerging bio-mediated ground improvement method in which nitrate-reducing bacteria in the soil are stimulated to produce biogas and biominerals. In this study, the potential of MIDP for mitigating soil liquefaction was evaluated using a modified triaxial setup. Modifications to the triaxial test setup allowed the change in the degree of saturation during treatment and the mechanical response to cyclic and monotonic loading to be measured. An experimental procedure was developed to simulate the in situ treatment process of a sand layer underneath an embankment along the Fraser River in Richmond, British Columbia, Canada, which was susceptible to liquefaction. Denitrifying microbes were enriched from locally collected soil. Reconstituted samples were treated with a single MIDP treatment cycle under similar stress conditions as encountered in the field. Triaxial consolidated undrained cyclic and monotonic tests were performed to investigate the mechanical response of the treated soil. Results showed that a single MIDP treatment cycle reduced the degree of saturation to 80 % and produced an average calcium carbonate content of 0.086 %, and significantly increased the cyclic shear resistance.
Drug-induced Interstitial Lung Disease in Breast Cancer Patients: A Lesson We Should Learn From Multi-Disciplinary Integration
Authors: Zhao Zijun , He Zhanghai , Huang Hongyan , Chen Jiewen , He Shishi , Yilihamu Ailifeire , Nie Yan 
Published: July 2020

Abstract
Taxanes represented by paclitaxel and targeted therapy including trastuzumab are two common agents for human epidermal growth factor receptor-2 (HER-2)-positive breast cancer patients. Effectiveness, however, usually comes at the cost of many side effects, some of which are even fatal. Drug-induced interstitial lung diseases (DILDs) comprise a group of drug-induced pulmonary injuries usually caused by using these medications. For DILDs, systemic therapy can be harmful to lung tissues and rapidly threaten the lives of some breast cancer patients. Through the cases from our hospital and related studies in medical databases, we hope readers can learn a lesson from an angle of multi-disciplinary integration based on clinical practice and pharmacological mechanisms to make anti-cancer agents less harmful and reduce the incidence of DILD in breast cancer patients during systemic therapy.
Circadian Rhythms of Perineuronal Net Composition
Authors: Pantazopoulos Harry , Gisabella Barbara , Rexrode Lindsay , Benefield David , Yildiz Emrah , Seltzer Phoebe , Valeri Jake , Chelini Gabriele , Reich Anna , Ardelt Magdalena , Berretta Sabina 
Published: July 2020

AbstractPerineuronal nets (PNNs) are extracellular matrix (ECM) structures that envelop neurons and regulate synaptic functions. Long thought to be stable structures, PNNs have been recently shown to respond dynamically during learning, potentially regulating the formation of new synapses. We postulated that PNNs vary during sleep, a period of active synaptic modification. Notably, PNN components are cleaved by matrix proteases such as the protease cathepsin-S. This protease is diurnally expressed in the mouse cortex, coinciding with dendritic spine density rhythms. Thus, cathepsin-S may contribute to PNN remodeling during sleep, mediating synaptic reorganization. These studies were designed to test the hypothesis that PNN numbers vary in a diurnal manner in the rodent and human brain, as well as in a circadian manner in the rodent brain, and that these rhythms are disrupted by sleep deprivation. In mice, we observed diurnal and circadian rhythms of PNNs labeled with the lectinWisteria floribundaagglutinin (WFA+ PNNs) in several brain regions involved in emotional memory processing. Sleep deprivation prevented the daytime decrease of WFA+ PNNs and enhances fear memory extinction. Diurnal rhythms of cathepsin-S expression in microglia were observed in the same brain regions, opposite to PNN rhythms. Finally, incubation of mouse sections with cathepsin-S eliminated PNN labeling. In humans, WFA+ PNNs showed a diurnal rhythm in the amygdala and thalamic reticular nucleus (TRN). Our results demonstrate that PNNs vary in a circadian manner and this is disrupted by sleep deprivation. We suggest that rhythmic modification of PNNs may contribute to memory consolidation during sleep.
What is New on Curriculum Policy and How it Affects Curriculum Studies?
Authors: Subkhan Edi 
Published: July 2020

In many countries the development of curriculum always in relation to the politic and the intervention of the government. Furthermore, it brings complexities in practices when the teachers try to implement the national-official curriculum in schools’ context, because there are many tensions among the interest of the government, the teachers’ ability to perceive and develop the curriculum on a contextual way, the slow and conservative bureaucracy in the district level, and the empirical social phenomenon and changes in the field. For instance in Indonesia, the rise of the national curriculum of 2013 is not academic in nature, but more political and we could see how the government takes many issues from the international trend to enrich the content of the curriculum and it implementation (see i.e. Alhamuddin, 2019; Mitra & Purnawarman, 2019; Perdana, 2013).
The government role on developing the national curriculum is interesting, especially because it has a power and system to force the schooling system to accept and implement the official curriculum by enacting several policies. For me it is also interesting to questioning whether the government perceived the curriculum as a field of studies or only as a public policy? In Indonesian context this understanding is important, because could be the important cause of the stagnation of the development of Curriculum Studies in general (Subkhan, 2019). According to the this issue, the edited book by Priestly and Biesta (2013) is important, because it elucidates the recent development of curriculum policy and how it has been practiced and developed in many ways in many countries throughout the world. It is relevant to know the position and role of curriculum policy in the development of curriculum at national level and its affects to Curriculum Studies as well.
Práticas de leitura de professoras alfabetizadoras: como se ensina a ler?
Authors: Da Cruz Luiara Maria , Assis Vivianny Bessão de 
Published: July 2020

Esta pesquisa buscou conhecer como tem sido as práticas de professoras alfabetizadoras no ensino da leitura com seus alunos, em turmas do 2°. ano do ensino fundamental de uma escola pública na região sul do estado de Mato Grosso do Sul (MS) que vem obtendo os maiores índices no IDEB no município e nas regiões vizinhas, alcançando 7,3 em 2015, e 6,9 em 2017. O eixo metodológico da pesquisa centra-se na abordagem qualitativa e descritiva a partir de entrevistas e questionário semiestruturado aplicado a três professoras e uma coordenadora da escola mencionada. Os resultados apontam que a escola vem obtendo sucesso nos índices de alfabetização por diversos fatores: as professoras sentem-se confiantes e valorizadas na escola; a figura da coordenadora é multifacetada, atuando como promotora da leitura literária entre os alunos e como articuladora das práticas conjuntas das professoras; a escola investe em simulados e provas semelhantes as cobradas pelo MEC; há propostas de “leitura para casa” desenvolvidas pela coordenação pedagógica. Os resultados da pesquisa indicam que o sucesso das práticas de leitura e escrita não estão relacionam a escolha de um método de ensino ou proposta metodológica definida pela escola, mas por um trabalho que envolve parceria e gestão pedagógica.
Relação professor-estudante no ensino superior: uma revisão de literatura
Authors: Soares Silva Alexsandra de Santana , Ribeiro Marinalva Lopes 
Published: July 2020

O artigo busca discutir questões acerca da relação professor-estudante e a sua relevância para a adaptação e desenvolvimento acadêmico. Trata-se de uma revisão de literatura nos bancos de dados da Associação Nacional de Pós-Graduação e Pesquisa em Educação; da Coordenação de Aperfeiçoamento de Pessoal do Nível superior; de Periódicos Eletrônicos de Psicologia; e da Scientific Eletronic Library Online, no período de 2010 a 2018, a partir dos descritores “relação professor-aluno”, “professor-estudante” e “afetividade no ensino superior”. O objetivo consistiu em compreender como acontece a relação professor-estudante e a importância desta no processo de adaptação e desenvolvimento do universitário. Os resultados revelaram que a relação professor-estudante precisa ser construída com base no diálogo, na troca de experiências, na afetividade e, também, que uma boa relação entre professor e estudante pode ser útil como fator protetor para os discentes que apresentam dificuldades na aprendizagem, bem como motivadora para aqueles que não apresentam tais dificuldades.
A 16 ITEMES SZÜLŐI REZILIENCIA KÉRDŐÍV (PREQ16) MAGYAR ADAPTÁCIÓJA – ELSŐ HAZAI MÉRÉSI TAPASZTALATOK
Authors: MARKÓ ÉVA , BANDI SZABOLCS , KISS ENIKŐ CSILLA 
Published: July 2020

Elméleti háttérA reziliencia azon tényezőket foglalja magában, amelyek a potenciálisan traumatizáló, veszélyeztetett életkörülmények ellenére történő sikeres alkalmazkodást elősegítik, a stressz negatív hatásait enyhítik, és a változásokkal szembeni adaptív megküzdést lehetővé teszik. A Szülői Reziliencia Skála (Parenting Resilience Elements Questionnaire – PREQ) a szülők lelki ellenálló képességének mérésére kidolgozott eszköz.CélkitűzésekA kutatás célja a 16 itemes PREQ magyar nyelvre adaptálása és pszichometriai elemzése volt.MódszerekKeresztmetszeti, kérdőíves vizsgálatunkban összesen 249 szülő vett részt – 65 fős vulnerábilis csoport (átlagéletkor:42,3 év; szórás: 5,66 év) és 184 fős kontrollcsoport (átlagéletkor: 40,7 év; szórás: 6,01 év) – , akik az alábbi kérdőíveket töltötték ki: 16 itemes Szülői Reziliencia Kérdőív (PREQ16), a Connor–Davidson Reziliencia Skála 10 itemes változata (CD-RISC 10), General Health Questionnaire 12itemes változata (GHQ12), Beck Depresszió Kérdőív 21 itemes változata (BDI21), Szülői Stressz Kérdőív (PASS), Képességek és Nehézségek Kérdőív (SDQ).EredményekA konfirmatív faktorelemzés igazolta magyar mintán az eredeti Szülői Reziliencia Kérdőív 3 faktoros struktúráját, a kérdőív Cronbach-alfa értéke magas (0,842) volt. A kérdőív az elvárásoknak megfelelő irányú együtt járást mutatott a validáláshoz alkalmazott konstruktumokkal, a konvergens, divergens, diszkrimináló és inkrementális validitás egyaránt megegyezett a nemzetközi irodalomban tapasztaltakkal.KövetkeztetésekÖsszességében elmondhatjuk, hogy a 16 itemes PREQ magyar változatának (PREQ-H) pszichometriai mutatói megfelelőek, a kérdőív megbízható és érvényes mérőeszköznek bizonyul a szülői reziliencia mérésére.