bluuebunny/crossref_metadata_2025 huggingface dataset:
HUBUNGAN STATUS GIZI IBU HAMIL DENGAN BAYI BERAT BADAN LAHIR RENDAH ( BBLR ) DI RSUD GAMBIRAN KOTA KEDIRI
Authors: Khulafa'ur R Lely , Amnah Ridhatul
Published: September 2019

Gizi adalah makanan dan zat gizi dalam makanan yang berguna bagi kesehatan.BBLRialah bayi baru lahir yang berat badannya saat lahir kurang dari 2500 gram.Faktor dari BBLR salah satunya ialah status gizi ibu. Tujuan dilakukan penelitian ini adalah Mengetahui hubungan status gizi ibu hamil dengan bayi berat badan lahir rendah diRSUD Gambiran Kota Kediri.

Desain penelitian yang digunakan adalah analitik korelasi dengan pendekatan  Retospektif Study. Populasi penelitian ini adalah data rekam medis semua yang melahirkan dengan BBLR di RSUD Gambiran Kota Kediri bulanJanuari – Marettahun 2015 dengan jumlah 31 responden.Dengan teknik puposive sampling didapatkan 25 responden.Variabel dalam penelitian ini terdapat dua variabel yaitu variabel independen dan dependen.Variabel independen yaitu status gizi ibu hamil dan variabel dependennya bayi berat badan lahir rendah. Pengumpulan data menggunakan Buku Rekam Medik yang dilakukan pada 17 mei 2015.Pengolahan data menggunakan editing, coding, scoring, tabulating.Dengan analisa data Spearman Rank.

Hasil penelitian menunjukkan bahwa dari 25 responden, mayoritas responden mempunyai status gizi normal yaitu 10 responden (40%), sedangkan kejadian bayi lahir dengan berat badan lahir rendah, sebagian besar masuk dalam kategori BBLR (1500-2500 gram) dengan jumlah 23 bayi (92%). Hasil uji statistika dengan korelasi Spearman Rank, Kesimpulannya p = - 0,186 < 0,396, maka H1 ditolak dan Ho diterima.

Berdasarkan hasil penelitian maka dapat disimpulkan tidak ada hubungan status gizi ibu dengan BBLR.Maka dibutuhkan peran tenaga kesehatan untuk melakukan penyuluhan dan pemantauan ANC untuk menekan kejadian BBLR.
HUBUNGAN PENGETAHUAN DENGAN MINAT SUAMI UMUR 30 – 50 TAHUN DALAM MENGGUNAKAN KB MEDIS OPERATIF PRIA (MOP)
Authors: Puspitasari Betristasia
Published: September 2019

HUBUNGAN PENGETAHUAN DENGAN MINAT SUAMI

UMUR 30 – 50 TAHUN DALAM MENGGUNAKAN

KB MEDIS OPERATIF PRIA (MOP)

 

(Di RT 18 dan 19 RW 3 Dsn Betik, Kelurahan Ngampel, Kecamatan Mojoroto, Kota Kediri)

 

 

Betristasia Puspitasari1, Duwi Puspitasari2

 1,2 Akademi Kebidanan Dharma Husada Kediri Jawa Timur

 

 

 

Abstrak

 

KB Medis Operatif Pria (MOP) adalah suatu metode kontrasepsi operatif minor pada pria. Rendahnya penggunan kontrasepsi di kalangan pria dipengaruhi oleh persepsi selama ini bahwa progam KB hanya diperuntukan bagi wanita, sehingga pria lebih cenderung pasif. Tujuan penelitian mengetahui hubungan pengetahuan dengan minat suami umur 30-50 tahun dalam menggunakan KB Medis Operatif Pria (MOP).Desain penelitian yang digunakan korelasional dengan pendekatan Cross Sectional. Penelitian dilaksanakan tanggal 25-29 Mei 2017 di RT 18 dan 19 RW 03 Dusun Betik, Kelurahan Ngampel, Kecamatana Mojoroto, Kota Kediri. Populasinya adalah semua suami umur 30-50 tahun menggunakan  sampling jenuh, sampel penelitianya sebanyak 37 responden. Variabel indepen pengetahuan suami tentang KB Medis Operatif Pria (MOP) diuji dengan kuesioner  dan variabel dependen minat suami umur 30-50 tahun dalam menggunakan KB Medis Operatif Pria (MOP) diuji dengan kuesioner. Instrumen penelitian menggunakan kuesioner yang sudah di uji validitas dan uji reliabilitas. Pengolahan data meliputi Coding, Editing, Scoring, Tabulating. Dianalisa dengan chi kuadrat. Hasil penelitian menunjukkan sebagian besar responden berpengetahuan cukup sejumlah 22 (59,46%) dan sebagian besar responden memiliki minat rendah sebanyak 15 (40,54%). Hasil analisis chi square didapatkan nilai p-value = 0,000 < 0,05 maka H1 diterima, artinya ada hubungan pengetahuan dengan minat suami umur  30 – 50 tahun dalam menggunakan KB Medis Operatif Pria (MOP).Berdasarkan hasil penelitian disimpulkan bahwa semakin baik pengetahuan suami tentang KB Medis Operatif Pria (MOP) maka semakin tinggi minat suami menggunakan KB Medis Operatif Pria (MOP). Diharapkan petugas kesehatan lebih aktif memberikan informasi tentang KB Medis Operatif Pria (MOP), sehingga dapat termotivasi menggunakan KB medis operatif pria (MOP).

 

 

Kata kunci : Pengetahuan, minat suami umur 30-50 tahun, KB Medis Operatif Pria (MOP)
GAMBARAN TINGKAT PENGETAHUAN REMAJA PUTRI TENTANG PEMERIKSAAN PAYUDARA SENDIRI DI SMA NEGERI 1 ATAMBUA
Authors: Berek Pius A L , Niron Christine Lusia Athirsa , Riwoerohi Elfrida Dana F. , Fouk Maria Fatimah W. A.
Published: September 2019

Remaja adalah periode perkembangan selama individu mengalami perubahan dari masa kanak-kanak menuju masa dewasa. Remaja umumnya akan mengalami perubahan fisik dan psikis. Tingginya angka kejadian kanker payudara mengakibatkan tidak sedikit pula penderita kanker payudara yang berujung pada kematian.Untuk mendeteksi adanya kelainan pada payudara itu dilakukan upaya-upaya tertentu salah satunya melakukan pemeriksaan payudara sendiri (SADARI).Dalam penelitian ini penulis menggunakan pendekatan kuantitatif dengan metode deskriptif dengan tujuan untuk mengekspresikan tingkat pengetahuan remaja putri tentang pemeriksaan payudara sendiri di SMA Negeri 1 Atambua. Hasil penelitian dari 154 responden dapat disimpulkan bahwa secara umum tingkat pengetahuan remaja putri kelas XII SMAN 1 Atambua tentang pemeriksaan payudara sendiri sebanyak 111 responden (72,1%), dalam hal tahu (know) sebanyak 63 responden (40,9%), dalam hal memahami (comprehension) sebanyak 94 responden (61%) dan tingkat pengetahuan dalam hal mengaplikasikan (Aplication) sebanyak 82 responden (53,3%). Sarannya adalah meningkatkan pengetahuan tentang pemeriksaan payudara sendiri (SADARI).Untuk petugas kesehatan setempat untuk memberikan penyuluhan terkait dengan kesehatan reproduksi khususnya pemeriksaan payudara sendiri (sadari) dan kanker payudara sehingga remaja putri memiliki sikap positif dalam melakukan Sadari, agar dapat mendeteksi secara dini dalam upaya pencegahan kanker payudara.
Pemenuhan Kebutuhan Lansia Terhadap Kualitas Hidup Lansia Di Kelurahan Grogol Jakarta Barat
Authors: Prima Dwi Ratna , Safirha Azahra Afni , Nuraini Siti , Maghfiroh Nurul
Published: September 2019

Abstrak

Latar Belakang. Lansia adalah seseorang yang berusia 60 tahun atau lebih, yang secara fisik terlihat berbeda dengan kelompok umur lainnya. Banyak perubahan dan masalah yang terjadi pada lansia seiring dengan proses penuaan, seperti penurunan fungsi biologis, psikologis, sosial, ataupun ekonomi. Kesejahteraan hidup lansia yang meningkat akan meningkatkan pula kualitas hidup lansia karena proses penuaan, penyakit, dan berbagai perubahan dan penurunan fungsi yang dialami lansia mengurangi kualitas hidup lansia secara progresif. Berdasarkan Data Statistik Indonesia didapatkan jumlah populasi lansia di DKI Jakarta pada tahun 2005 sejumlah 404.010 orang. Di perkotaan sendiri presentase lansia yang bekerja pada tahun 2011 adalah 38,99%. Sebanyak 70% dari lansia di Jakarta masih merupakan kepala rumah tangga dan tulang punggung untuk menghidupi dirinya sendiri maupun keluarganya. Misalnya Posyandu Lansia sebagai wahana pelayanan bagi kaum Lansia, yang dilakukan dari, oleh dan untuk kaum usila yang menitikberatkan pada pelayanan promotif dan preventif, tanpa mengabaikan upaya kuratif dan rehabilitatif, Namun, kelompok usia lanjut sendiri kurang dapat memanfaatkan Posyandu Lansia. Permasalahan yang ada adalah semakin tua seseorang semakin turun dan berkurang daya tahan fisiknya, dan beberapa jenis penyakit tertentu akan muncul dan menyerang lansia, kondisi psikis dan mental lansia juga akan mengalami gangguan. Dukungan sosial dan dukungan psikologis pada lansia belum teridentifikasi secara optimal.

Metode Penelitian. Pada penelitian ini rancangan yang digunakan adalah desktriptif cross sectional dengan jumlah sampel 100 lansia dengan menggunakan teknik purposive sampling. Penelitian menggunakan instrument penelitian berdasarkan WHOQOL-BREF

Hasil Penelitian. Menunjukan bahwa dari 100 lansia 25 (25%) jenis kelamin laki-laki dan 75 (75%) perempuan. Usia responden paling banyak 66 (66%) antara 60-70 tahun,  11 (11%) responden dengan usia antara 81-90 tahun. Status pernikahan paling banyak 65 responden (65%) berstatus janda/duda dan 2 (2%) responden berstatus cerai.  Tingkat pendidikan yang apaling banyak (62%) responden adalah Sekolah Dasar (SD). Kualitas hidup lansia berdasarkan kesehatan fisik adalah berkualitas, 100 (100%) responden dilihat dari kualitas hidup lansia berdasarkan kesehatan psikologis adalah berkualitas, 100 (100%) responden dilihat dari kualitas hidup lansia  berdasarkan interaksi sosial adalah tidak berkualitas, 100 (100%) responden dilihat dari kualitas hidup lansia  berdasarkan lingkungan adalah berkualitas.

 

Kata Kunci Lansia, Kualitas hidup, Interaksi sosial
A Need Analysis For Developing Integrated Stem Course Training Module For Pre-Service Mathematics Teachers
Authors:   Department of Science Education, Sokoto State University, Sokoto, Nigeria., Galadima Usman , Ismail Zaleha ,   Department of Science, Mathematics and Creative Multimedia Education, Universiti Teknologi Malaysia, Ismail Norulhuda ,   Department of Science, Mathematics and Creative Multimedia Education, Universiti Teknologi Malaysia
Published: September 2019

The purpose of this paper is to present the need to develop the integrated Science, Technology, Engineering and Mathematics (iSTEM) course training module for preparing the pre-service mathematics teachers’ readiness in teaching the iSTEM course in their future classroom instruction. In this paper, the researchers present the data for the study collected qualitatively using semi-structured interview questions. Purposive sampling was used in choosing 6 university lecturers in Nigeria for conducting the interview to identify and seek their insights regarding the need for iSTEM course training and module for teaching iSTEM course. An interview data collected was transcribed and inductively analysed using an exploratory content analysis approach in which five main themes have been identified, namely: (i) pedagogical knowledge; (ii) content knowledge; (iii) conception of the iSTEM; (iv) instructional strategy and (v) curricula knowledge for teaching iSTEM course. The results of this study indicated that all the six interview participants responded that they have no idea and had insufficient knowledge about the teaching of integrated STEM course. Moreover, the lecturers indicated that they were not exposed to the iSTEM course at all. The findings revealed that there is a need for the iSTEM course training and development of the iSTEM teaching module in helping the pre-service mathematics teachers’ readiness in teaching the iSTEM course. Based on the findings, the researchers recommended suitable iSTEM course training module to prepare the pre-service mathematics teachers’ readiness in teaching iSTEM course could be integrated into the teacher education curriculum in Nigeria.
The Role Of Person Job Fit And Person Organization Fit On The Development Of Innovation Capabilities At Indonesia Creative Industry
Authors:   Management, UniversitasNegeri Manado, Manado, Indonesia. Ph.D Student from Universitas Sam Ratulangi, Indonesia, Wuryaningrat Nikolas F. , Kindangen Paulus ,   Management, Universitas Sam Ratulangi, Manado Indonesia, Sendouw Greis ,   Management, Universitas Sam Ratulangi, Manado Indonesia, Lumanouw Bode ,   Management, Universitas Sam Ratulangi, Manado Indonesia
Published: September 2019

Through the study, it was assuming that in order to develop the innovation capabilities of SMEs in the creative industry, knowledge sharing is needed, where trust is a crucial factor in knowledge sharin. However, building trust is not a simple matter, it assumed that person job fit (PJ-Fit) and person organization fit (PO-Fit) could be useful to build trust in the organization. Two hundred and one data were collectedfrom Province of Bali, Province of Special RegionYogyakarta and North Sulawesi Province. Data were analyzed with PLS-SEM.The study proposed four hypothesis and the results indicated there is no significant direct effect relationship between person job fit (PJ-Fit) and person organization fit (PO-Fit) on innovation capabilities. Result also indicated there is significant effect PJ-Fit and PO-Fit on trust, hence trust make positive effect on knowledge sharing, in turn knowledge sharing had positive significant effect on creative industry innovation capabilities at Indonesia.
科学透明化门诊管理对我院临床工作满意度及医患纠纷发生率的影响
Authors: 高 华 , 钟 成跃 , 何 媛
Published: September 2019

为了研究科学透明化门诊管理对我院临床工作满意度及医患纠纷发生率的影响，选取了实施科学化门诊管理前后我院门诊就诊患者2000 例，将实施科学透明化门诊管理的患者作为观察组（n=1000），将实施传统门诊管理的患者作为对照组（n=1000），比较2组临床工作满意度及医患纠纷发生率。结果表明，2 组临床工作满意度比较，观察组95.00%（950/1000）高于对照组76.00%（760/1000），差异有统计学意义（P＜0.05）；观察组医患纠纷发生率为2.10%（21/1000），低于对照组20.00%（200/1000），差异有统计学意义（P＜0.05）。由此得出，采用科学透明化门诊管理可有效提高我院临床工作满意度，降低医患纠纷发生率，促进门诊就诊有序进行，值得推广应用。
Hubungan Pengetahuan dengan Perilaku Pelajar Pengguna Personal Listening Devices (PLDs)
Authors: Muyassaroh Muyassaroh , Dimas Dimas , Citra Citra
Published: September 2019

Latar belakang : Pelajar SMA/sederajat sebagian besar memiliki hobi mendengarkan musik menggunakan personal listening devices (PLDs). Penggunaan PLDs meningkatkan risiko kurang pendengaran sensorineural (KPSN) akibat bising. Pengetahuan yang baik tentang PLDs akan menurunkan risiko KPSN. Penelitian ini bertujuan untuk menganalisis hubungan pengetahuan dengan perilaku pelajar pengguna PLDs. Metode : Survey pengguna PLDs pada pelajar SMA/sederajat di kota Semarang bulan Mei 2014. Pengambilan data dilakukan dengan pengisian kuesener terpimpin yang telah diujicobakan. Data dianalisis dengan uji korelasi Spearman. Hasil : Subyek penelitian sebanyak 308 sampel, laki-laki 191 (62,0%) dan perempuan 117 (38,0%). Rerata skor pengetahuan 8,17±1,96 sedangkan rerata skor perilaku 5,35±2,29. Skor pengetahuan berhubungan dengan skor perilaku (p=0,000) dengan tingkat korelasi lemah (r=0,295). Simpulan : Terdapat hubungan pengetahuan dengan perilaku pelajar pengguna PLDs.
Serum levels of soluble CD163 and soluble CD14 following antibiotic therapy of patients with acute brucellosis
Authors: Sun Huali , Jiang Rongmeng , Han Bing , Du Xiufang , Ma Chengjie , Xu Yanli , Chen Zhihai , Wang Linghang , Yang Siyuan , Lv Xiao , Zhao Hong , Li Xingwang
Published: September 2019

Introduction: Soluble CD163 (sCD163) and soluble CD14 (sCD14) levels, monocyte/macrophage activation markers, are elevated in patient serum during Brucella infection. The aim of this study was to measure serum sCD163 and sCD14 levels during treatment for acute brucellosis to determine whether they can be used to monitor treatment efficacy.

Methodology: Blood samples were collected from 30 patients with acute brucellosis (disease duration < 8 weeks) before and after 6 weeks of antibiotic therapy as well as from a comparison group of 28 healthy control individuals. Serum sCD163 and sCD14 levels were measured with specific, sandwich enzyme-linked immunosorbent assays. The clinical data and routine indices including C-reactive protein (CRP), erythrocyte sedimentation rates (ESR), as well as white cell counts (WBC) were also studied.

Results: Both serum sCD163 and sCD14 levels were significantly higher in patients with acute brucellosis than in healthy controls (p < 0.0001). A significant decline was observed in patients after cessation of treatment (p < 0.001), which still be significantly higher than that in healthy controls (p < 0.001). In additional, serum sCD163 levels were positively correlated with sCD14 levels; both of which were positively associated with CRP levels. However, neither sCD163 nor sCD14 levels were correlated with ESR or WBC.

Conclusions: The decline in sCD163 and sCD14 levels following antibiotic therapy may be used as a marker to assess therapeutic efficacy following treatment of acute brucellosis.
Epidemiology and mortality in bacterial bloodstream infections in patients with hematologic malignancies
Authors: Mert Duygu , Ceken Sabahat , Iskender Gulsen , Iskender Dicle , Merdin Alparslan , Duygu Fazilet , Ertek Mustafa , Altuntas Fevzi
Published: September 2019

Introduction: Patients with hematological malignancies, who are in the high risk group for infectious complications and bacterial bloodstream infections. The aim of the study evaluated epidemiology and mortality in bacterial bloodstream infections in patients with hematologic malignancies. In addition to determine the risk factors, changes in the distribution and frequency of isolated bacterias.

Methodology: In this retrospective study. There were investigated data from 266 patients with hematological malignancies and bacterial bloodstream infections who were hospitalized between the dates 01/01/2012 and 12/31/2017.

Results: There were 305 blood and catheter cultures in febrile neutropenia attacks in total. In these total attacks, primary bloodstream infections were 166 and catheter-related bloodstream infections were 139. In blood cultures; Escherichia coli and Klebsiella pneumoniae bacteria were detected in 58,0% and 22,9% of the samples, respectively. 52,4% of the cultured Gram-negative bacterias were extended spectrum beta-lactamase (ESBL). Carbapenemase positive culture rate was 17,2% in Gram-negative bacteria cultures. Staphylococcus epidermidis was found in 38,4% of the Gram-positive bacteria cultures. In Gram-positive bacteria; methicillin resistance were detected in 82,2% of the samples. There was a statistically significant relationship between bloodstream infection and disease status. 60 patients with primary bloodstream infections were newly diagnosed.

Conclusions: In patients with hematological malignancies, certain factors in the bloodstream infections increase the mortality rate. With the correction of these factors, the mortality rate in these patients can be reduced. The classification of such risk factors may be an important strategy to improve clinical decision making in high-risk patients, such as patients with hematological malignancies.
Psychological and Social Issues Affecting Orphans and Vulnerable Children
Authors: Ntshuntshe Zoleka , Taukeni Simon G.
Published: September 2019

Orphan-hood is a natural occurrence event of life and not a personal choice. It is a natural life event of losing a parent or a primary caregiver in the life of an orphan child. This chapter focuses on the psychological and social issues that orphans and other vulnerable children experience when their parents are no longer alive. Using literature as a source, most psychosocial issues affecting orphans and other vulnerable children are categorized and justified. Possible solutions and recommendations are clearly illustrated for possible intervention and prevention strategies. Lastly, the chapter ushers future research directions regarding psychosocial issues affecting orphans and other vulnerable children.
Parent-Child Stress on School Mathematics Homework in a Multicultural Society
Authors: Weerasinghe Daya
Published: September 2019

The aim of this chapter is to discuss parent-child stress among different cultures in relation to parents' perceptions and their involvement in mathematics homework and children's academic achievement. Several decades of research have demonstrated that parental involvement in children's achievement is associated with a variety of positive and negative academic and motivational outcomes. It is argued that parents' involvement may matter more for some children than for others and parents are active participants rather than passive observers in children's education. This chapter provides insights on how parental involvement in homework can make a difference and why excessive involvement of parents can cause stress for both parents and children. Further, it is discussed how the cultural differences between Asian and European groups appear to narrow down with acculturation over the years.
Researching Conditions of Thermomechanical Process under Semihot Forging
Authors: Radkevich Mihail Mihailovich , Fomin Dmitrii , Gluchihin Alexandr
Published: September 2019

Questions of thermomechanical parameters appointment under the semihot (warm) forging of metal preforms were considered. The international experience was analyzed as well. Economically effective thermomechanical conditions under semihot/warm forging, which is capable to provide a high complex of the mechanical properties of steel, are offered. The economical effect after the process integration to the industry was considered.
Obtaining a Hard Alloy Powder from a Worn-Out Tools with a Subsequent Use for Pressing Rods
Authors: Kotov Sergey A. , Avramishin Bogdan Valerevich , Fedorov Evgenii Michalovich
Published: September 2019

The article presents the results of research on obtaining powder of hard alloy using various methods. The analysis of studies described in the literature. Currently, there are many ways to obtain powders from waste, but most of them are poorly applicable in practice in a particular plant. On the basis of the data obtained from the literature, a method of obtaining powder was selected, which can be used in an enterprise with the equipment available. Technological regimes were also selected, which included such operations as softening the workpieces, mechanical grinding, grinding the powder in a ball mill, making press powder, molding, sintering, and tool making processes. The resulting blanks were further compared with a standard tool for cutting edge resistance and the presence of external and internal defects. The work carried out has shown the possibility of using technological regimes for the production of powders on existing equipment for the subsequent manufacture of cutting tools. This technology allows to reduce costs and product cost without significant loss in product quality, which makes it possible to compete with other manufacturers of carbide tools. In the future, it is planned to develop and optimize the existing technology to improve product quality. The paper presents the results of research of obtaining a hard alloy powder with a different methods. Comparison of products from different powders and the subsequent pressing rods, their sintering and examination of defects
Homogenization of Cr-Ni Austenitic Steel Studying: Liquation and Microhardness Heterogeneity Equalization
Authors: Tsvetkov Anton Sergeevich , Teplukhina Irina Vladimirovna
Published: September 2019

Currently, a new generation of pressurized water reactor for nuclear power plants with an extended service life (up to 60 years) and a guarantee of their complete safety are being designed in Russia. Analysis of the reactor internal elements performance showed, that designed service life cannot be guaranteed if the reactor’s internal parts would be made from currently used stainless steel (18-10 alloy type). Instead of the used steel, to ensure operability, new austenitic stainless steel (16-25 alloy type), with increased resistance to radiation swelling, is being developed for production of forged ring blanks for core baffle. The use of new steel requires revision of the existing metallurgical production technology stages. Therefore in this paper diffusion experiment was carried out to determine the required duration of homogenization. The results are presented in terms of different duration of the high-temperature exposure effect on the liquation heterogeneity equalization. The relation between duration of homogenization and microhardness is also shown.
Effect of Agrochemicals Used in the Cultivation of Soybean and Irrigated Rice on Beauveria bassiana (Bals.) Vuill. and Metarhizium anisopliae (Metsch.) Sorok
Authors: Gonçalves Vanessa P. , Farias Cândida R. J. de , Moreira-Nunêz Victoria , Moccellin Renata , Gaviria-Hernández Viviana , Rosa Ana Paula S. A. da
Published: September 2019

The objective of this work was to evaluate the fungitoxic effect of the agrochemicals used in the cultivation of soybean and irrigated rice on entomopathogenic fungi such as Beauveria bassiana and Metarhizium anisopliae by means of the mycelial growth, sporulation and spore germination. The isolates were inoculated in potato-dextrose-agar (PDA) medium containing the pesticides and exposed to spraying with the products. It was observed that chlorantraniliprole produced the best results regarding and was compatible with the two methods of contact of the product with the fungi. Flubendiamide it’s very toxic to fungi, producing 100% inhibition when incorporated into the medium, when by spraying, the fungus M. anisopliae got mycelial growth. Etofenprox and thiamethoxam changed their toxity classification according to the method of contact with product, was moderately compatible to B. bassiana and compatible to M. anisopliae and spinosad showed more compatibility with M. anisopliae than B. bassiana and was classified as compatible. Among fungicides the tricyclazole was the only compatible with the fungus by the spray method. The results showed that in vitro agrochemicals such as tricyclazole, thiamethoxam, flubendiamide and etofenprox are harmful to fungi. It was found that environmental interference could minimize the effects on organisms, especially when the chemicals are applied by spraying.
Water Quality of Underground Wells in Limoeiro do Norte, Brazilian Northeast
Authors: Rodrigues Luma Lorena L. S. , Silva Eulene F. , Farias Milene L. , Pinheiro Antônio M. , Lima Renner B. , Morais Francimar M. S. , Santos Eula Paula S. , Campêlo Maria Carla S. , Silva Larissa F. , Freitas Diana F. , Oliveira Felipe O.
Published: September 2019

The objective of this work was to assess the physicochemical and microbiological characteristics, as well as the potential of salinization and sodification of groundwater wells in Limoeiro do Norte, Ceará states, Brazil. Six water wells were selected for the study, all of them used for irrigation and human consumption. The ionic classification was performed by Piper Diagram and the salinity risk using the U.S.S.L. (United States Salinity Laboratory) Diagram using Qualigraf software. Based on the average chemical element concentration (mmolc L-1) in the groundwater, the following quantification is obtained: Na+ > Ca2+ > Mg2+ > K+ for cations. For anions there was a change in the the wells, for the 1, 3 and 4 Cl- > HCO3- > SO42- > CO32- and wells 2, 5 and 6 HCO3- > Cl- > SO42- > CO32-. The wells 1, 2 and 3 have severe restrictions for use by SAR (sodium absorption ratio) and Na+ content. Water from wells 1, 3 and 5 were classified as sodium chloride, 2 and 6 were classified as sodium bicarbonate and well 4 as calcium magnesium sulfate. With the exception of well 6 classified as freshwater, all other wells were classified as brackish water. Groundwater samples fall in C3S1 or C3S2 category with high salinity and low or medium sodium hazard. With the exception of Na+, whose value was above the limit allowed, no well with groundwater was detected chemical hazard for human consumption. There was the detection of Total coliforms, but in well 5 the presence of Thermotolerant coliforms was detected.
Análise de sites disseminadores de fake news
Authors: P. Guimarães Davi , M. Moreira Guilherme , E. Fagundes Matheus , M. Lazarin Nilson
Published: September 2019

Fake news são notı́cias que contém informações incorretas ou imprecisas e são disseminadas com algum objetivo. Os impactos causados pelo consumo de notı́cias falsas podem ser grandes, afetando aspectos polı́ticos, sociais, econômicos e pessoais da vida da população. Apesar disso, não existem soluções definitivas confiáveis e escaláveis de se identificar uma notı́cias falsas. O objetivo deste artigo é identificar caracterı́sticas em sites disseminadores de fake news, através da análise de diferentes dados de auditoria e conteúdo, que possam ser úteis a classificadores de confiabilidade de notı́cias.
HARPP: HARnessing the Power of Power sets for Mining Frequent Itemsets
Authors: Yasir Muhammad , Asif Habib Muhammad , Sarwar Shahzad , Nadeem Faisal Chaudhry Muhammad , Ahmad Mudassar , Jabbar Sohail
Published: September 2019

Modern algorithms for mining frequent itemsets face noteworthy deterioration of performance when minimum support tends to decrease, especially for sparse datasets. Long-tailed itemsets, frequent itemsets found at lower minimum support, are significant for present-day applications such as recommender systems. In this study, we have developed a novel power set based method named as HARnessing the Power of Power sets (HARPP) for mining  frequent itemsets. HARPP iteratively generates power sets to make combinations of overlapping varying-sized subsets of I, where I is a set of items in a large database. Intrinsic feature of creating power sets along with the use of set data structure ensures the agility of HARPP because most of its operations take constant running time. Without storing it entirely in memory, HARPP scans the dataset only once and mines frequent itemsets on the fly. In contrast to state-of-the-art, efficiency of HARPP increases with decrease in minimum support that makes it a viable technique for mining long-tailed itemsets. Performance study shows that HARPP is efficient and scalable, and is faster up to two orders of magnitude than FP-Growth algorithm at lower minimum support particularly when datasets are sparse.
Modiolus cimbricus sp. nov. (Bivalvia: Mytilidae) endemic in the Kattegat-Skagerrak
Authors: Ockelmann Kurt W. , Cedhagen Tomas
Published: September 2019

Small usually beautifully coloured mussels from the Kattegat were to date identified as Modiolus adriaticus (Lamarck, 1819) since C.G.Johs. Petersen’s account of the shell-bearing molluscs was published in 1888. However, these mussels from Danish and Swedish waters represent a very distinct new species which also is endemic. The present paper serves to describe this new species, Modiolus cimbricus sp. nov., which belongs to the genus Modiolus Lamarck, 1799. The genus Gibbomodiola Sacco, 1898, to which Modiolus adriaticus has been moved, is here synonymized with Modiolus Lamarck, 1799.
Performance of corrosion protection of carbon steel with cerium modified phosphate–permanganate coatings and a layer of silane doped with cerium
Authors: Girčienė O. , Gudavičiūtė L. , Martušienė A. , Jasulaitienė V. , Selskienė A. , Ramanauskas R.
Published: September 2019

This work was aimed to evaluate the effect of bis-[triethoxysilylpropyl] tetrasulfide (BTESPT) doped with cerium nitrate, as a corrosion inhibitor, on improved corrosion resistance of samples of carbon steel with a phosphate–permanganate layer in a 0.5 M NaCl solution. The main goal of the present work was to compare self-healing capacities of cerium conversion coatings and cerium as an additive inhibitor to silane. The composition and structure of the investigated samples were characterized by scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (XPS) techniques, while the corrosion behaviour was investigated applying voltametric and electrochemical impedance spectroscopy (EIS) measurements. The results of EIS measurements performed during 24 h immersion of the investigated samples into the 0.5 M NaCl solution revealed that the layer of silane doped with Ce was more protective than that of the non-modified one. It has been determined that the presence of cerium nitrate in the silane coating can lead to high values of low frequency impedance due to the healing of the defect.
High adoption rates in a new preprint service from Springer Nature and Research Square
Authors: Pattinson Damian
Published: September 2019

In recent years, funders have increased their support for early sharing of biomedical research through the use of preprints. For most, such as the COAlitionS group of funders (ASAPbio 2019) and the Gates foundation, this takes the form of active encouragement, while for others, it is mandated. But despite these motivations, few authors are routinely depositing their work as a preprint before submitting to a journal.

Some journals have started offering authors the option of posting their work early at the point at which it is submitted for review. These include PLOS, who offer a link to BiorXiv, the Cell journals, who offer SSRN posting through ‘Sneak Peak’, and Nature Communications, who offer posting to any preprint and a link from the journal page called ‘Under Consideration’. Uptake has ranged from 3% for the Nature pilot, to 18% for PLOS (The Official Plos Blog 2018).

In order to encourage more researchers to post their work early, we have been offering authors who submit to BMC Series titles the opportunity to post their work as a preprint on Research Square, a new platform that lets authors share and improve their research. To encourage participation, authors are offered a greater amount of control and transparency over the peer review process if they opt in. First, they are given a detailed peer review timeline which updates in real time every time an event occurs on their manuscript (reviewer invited, reviewer accepts etc). Second, they are encouraged to share their preprint with colleagues, who are able to post comments on the paper. These comments are sent to the editor when they are making their decision. Third, authors can suggest potential peer reviewers, recommendations which are also passed onto the editor to vet and invite.

Together, these incentives have had a positive impact on authors choosing to post a preprint. Among the journals that offer this service, the average opt-in rate is 40%. This translates to over 3,000 manuscripts (as of July 2019) that have been posted to Research Square since the launch of the service in October 2018.

In this talk I will demonstrate the functionality of Research Square, and provide demographic and discipline data on which areas are most and least likely to post.
Callus Induction and Synthetic Seed Development in Draceana sanderiana Sanderex Mast: Lucky Bamboo
Authors: Amin Mohmad , Mujeeb Abdul
Published: September 2019

The study was carried out for callus induction and synthetic seed development from the shoot tips of Draceana sanderiana sander ex Mast. The shoot tips were subjected to different concentrations (0.25, 0.5 &1.0 mg/l) of 2,4-D on MS medium. The research findings revealed that the 2,4-D at concentrations of 0.25 mg/l was more suited for the profuse callus formation. The friable and light yellow callus was induced within 2 weeks of culture at 0.25 mg/l of 2,4-D on MS medium as compared to the other two concentrations of 2,4-D i.e.; 0.5 and 1.0 mg/l. Similarly the effect of sodium alginate and calcium chloride percentage on synthetic seed formation was observed, it was found that somatic embryos formed from shoot tips via callus kept in 2.5% sodium alginate and 100 milli molar CaCl2 produced synthetic seeds with firm spherical beads. The study leads to the formation of synthetic seeds of Draceana sanderiana which can be used for the conservation of germplasm through cryopreservation and the micro propagation of the said plant species.
Fluorescent Carbon‐ and Oxygen‐Doped Hexagonal Boron Nitride Powders as Printing Ink for Anticounterfeit Applications
Authors: Liu Feng , Nattestad Andrew , Naficy Sina , Han Rui , Casillas Gilberto , Angeloski Alexander , Sun Xudong , Huang Zhenguo
Published: September 2019

Increasing demands for optical anticounterfeiting technology require the development of versatile luminescent materials with tunable photoluminescence properties. Herein, a number of fluorescent carbon‐ and oxygen‐doped hexagonal boron nitride (denoted as BCNO) phosphors are found to offer a such high‐tech anticounterfeiting solution. These multicolor BCNO powders, developed in a two‐step process with controlled annealing and oxidation, feature rod‐like particle shape, with varied luminescence properties. Studies of the optical properties of BCNO, along with other characterization, provide insight into this underexplored material. Anticounterfeiting applications are demonstrated with printed patterns which are indistinguishable to the naked eye under visible light but become highly discernible under UV irradiation. The fabricated patterns are demonstrated to be both chemically stable in corrosive environments and physically robust in mechanical bending testing. These properties render BCNO as promising and versatile anticounterfeiting material a wide variety of environments.
The Ultrafast and Continuous Fabrication of a Polydimethylsiloxane Membrane by Ultraviolet‐Induced Polymerization
Authors: Si Zhihao , Li Jingfang , Ma Liang , Cai Di , Li Shufeng , Baeyens Jan , Degrève Jan , Nie Jun , Tan Tianwei , Qin Peiyong
Published: September 2019

The polydimethylsiloxane (PDMS) membrane commonly used for separation of biobutanol from fermentation broth fails to meet demand owing to its discontinuous and polluting thermal fabrication. Now, an UV‐induced polymerization strategy is proposed to realize the ultrafast and continuous fabrication of the PDMS membrane. UV‐crosslinking of synthesized methacrylate‐functionalized PDMS (MA‐PDMS) is complete within 30 s. The crosslinking rate is three orders of magnitude larger than the conventional thermal crosslinking. The MA‐PDMS membrane shows a versatile potential for liquid and gas separations, especially featuring an excellent pervaporation performance for n‐butanol. Filler aggregation, the major bottleneck for the development of high‐performance mixed matrix membranes (MMMs), is overcome, because the UV polymerization strategy demonstrates a freezing effect towards fillers in polymer, resulting in an extremely high‐loading silicalite‐1/MA‐PDMS MMM with uniform particle distribution.
Anion–π Catalysis on Carbon Nanotubes
Authors: Bornhof Anna‐Bea , Vázquez‐Nakagawa Mikiko , Rodríguez‐Pérez Laura , Ángeles Herranz María , Sakai Naomi , Martín Nazario , Matile Stefan , López‐Andarias Javier
Published: September 2019

Induced π acidity from polarizability is emerging as the most effective way to stabilize anionic transition states on aromatic π surfaces, that is, anion–π catalysis. To access extreme polarizability, we propose a shift from homogeneous toward heterogeneous anion–π catalysis on higher carbon allotropes. According to benchmark enolate addition chemistry, multi‐walled carbon nanotubes equipped with tertiary amine bases outperform single‐walled carbon nanotubes. This is consistent with the polarizability of the former not only along but also between the tubes. Inactivation by π‐basic aromatics and saturation with increasing catalyst concentration support that catalysis occurs on the π surface of the tubes. Increasing rate and selectivity of existing anion–π catalysts on the surface of unmodified nanotubes is consistent with transition‐state stabilization by electron sharing into the tubes, i.e., induced anion–π interactions. On pristine tubes, anion–π catalysis is realized by non‐covalent interfacing with π‐basic pyrenes.
4‐Methyltetrahydropyran (4‐MeTHP): Application as an Organic Reaction Solvent
Authors: Kobayashi Shoji , Tamura Tomoki , Yoshimoto Saki , Kawakami Takashi , Masuyama Araki
Published: September 2019

4‐Methyltetrahydropyran (4‐MeTHP) is a hydrophobic cyclic ether with potential for industrial applications. We herein report, for the first time, a comprehensive study on the performance of 4‐MeTHP as an organic reaction solvent. Its broad application to organic reactions includes radical, Grignard, Wittig, organometallic, halogen‐metal exchange, reduction, oxidation, epoxidation, amidation, esterification, metathesis, and other miscellaneous organic reactions. This breadth suggests 4‐MeTHP can serve as a substitute for conventional ethers and harmful halogenated solvents. However, 4‐MeTHP was found incompatible with strong Lewis acids, and the C−O bond was readily cleaved by treatment with BBr3. Moreover, the radical‐based degradation pathways of 4‐MeTHP, THP and 2‐MeTHF were elucidated on the basis of GC‐MS analyses. The data reported herein is anticipated to be useful for a broad range of synthetic chemists, especially industrial process chemists, when selecting the reaction solvent with green chemistry perspectives.
Synthesis of Thiocyameluric Acid C6N7S3H3, Its Reaction to Alkali Metal Thiocyamelurates and Organic Tris(dithio)cyamelurates
Authors: Posern Christian , Höhne Carl‐Christoph , Böhme Uwe , Vogt Claudia , Kroke Edwin
Published: September 2019

Thiocyameluric acid C6N7S3H3, the tri‐thio analogue of cyameluric acid, is a key compound for the synthesis of new s‐heptazine (tri‐s‐triazine) derivatives. Here, two different routes for the synthesis of thiocyameluric acid and its reaction to tris(aryldithio)‐ and tris(alkyldithio)cyamelurates C6N7(SSR)3 are reported as well as transformation to alkali metal thiocyamelurates M3[C6N7S3], M=Na, K. These compounds were characterised by FTIR, Raman, solution 13C and 1H NMR spectroscopies, thermal gravimetric analysis (TGA) and elemental analysis. The three (de)protonation steps of thiocyameluric acid were investigated by acid–base titration followed via UV/Vis absorption spectroscopy. While it was not possible to determine the three pKa values, it could be postulated that the acid strength probably increases in the following order: cyanuric acid (C3N3O3H3) < thiocyanuric acid (C3N3S3H3) < cyameluric acid (C6N7O3H3) < thiocyameluric acid (C6N7S3H3). Single crystals of Na3[C6N7S3]⋅10 H2O and K3[C6N7S3]⋅6 H2O were obtained and the structures analyzed by single crystal X‐ray diffraction. Additionally, quantum chemical calculations were performed to get insights into the electronic structure of thiocyameluric acid and to clarify the thiol–thione tautomerism. Based on a comparison of calculated and measured vibrational spectra it can be concluded that thiocyameluric acid and the di‐ and mono‐protonated anions exist in the thione form.
Erufosine (ErPC3) Cationic Prodrugs as Dual Gene Delivery Reagents for Combined Antitumor Therapy
Authors: Gaillard Boris , Seguin Cendrine , Remy Jean‐Serge , Pons Françoise , Lebeau Luc
Published: September 2019

Sixteen cationic prodrugs of the antitumor alkylphospholipid (APL) erufosine were rationally synthesized to provide original gene delivery reagents with improved cytotoxicity profile. The DNA complexation properties of these cationic lipids were determined and associated transfection rates were measured. Furthermore, the self‐assembly properties of the pro‐erufosine compounds were investigated and their critical aggregation concentration was determined. Their hydrolytic stability under pH conditions mimicking the extracellular environment and the late endosome milieu was measured. Hemolytic activity and cytotoxicity of the compounds were investigated. The results obtained in various cell lines demonstrate that the prodrugs of erufosine display antineoplastic activity similar to that of the parent antitumor drug but are not associated with hemolytic toxicity, which is a dose‐limiting side effect of APLs and a major obstacle to their use in anticancer therapeutic regimen. Furthermore, by using lipoplexes prepared from a prodrug of erufosine and a plasmid DNA encoding a pro‐apoptotic protein (TRAIL), evidence was provided for selective cytotoxicity towards tumor cells while nontumor cells were resistant. This study demonstrates that the combination approach involving well tolerated erufosine cationic prodrugs and cancer gene therapy holds significant promise in tumor therapy.
Mild and Practical Dirhodium(II)/NHPI‐Mediated Allylic and Benzylic Oxidations with Air as the Oxidant
Authors: Wang Yi , Chen Xiaochuan , Jin Hong , Wang Yuanhua
Published: September 2019

Invited for the cover of this issue is the group of Hong Jin and Yuanhua Wang at Sichuan University. The image depicts a large reaction beaker, in which the oxidation catalyzed by the dirhodium(II) complexes together with N‐hydroxyphthalimide is taking place, surrounded by a background that evokes an environmentally friendly process. The idea of the illustration comes directly from the experimental equipment, the picture of which appears in the graphical abstract. Read the full text of the article at 10.1002/chem.201902739.
Fe3SnC@CNF: A 3 D Antiperovskite Intermetallic Carbide System as a New Robust High‐Capacity Lithium‐Ion Battery Anode
Authors: Roy Kingshuk , Chavan Vinila , Hossain Sk Mujaffar , Haldar Sattwick , Vaidhyanathan Ramanathan , Ghosh Prasenjit , Ogale Satishchandra B.
Published: September 2019

A 3 D intermetallic anti‐perovskite carbide, Fe3SnC, is reported as a Li‐ion battery anode. Single‐phase Fe3SnC showed a reversible Li‐ion capacity of 426 mAh g−1 that increased significantly (600 mAh g−1) upon its in situ synthesis by electrospinning and pyrolysis to render a conducting carbon nanofibre (CNF) based composite. Importantly, the Fe3SnC@CNF composite showed excellent stability in up to 1000 cycles with a remarkable 96 % retention of capacity. The rate performance was equally impressive with a high capacity of 500 mAh g−1 delivered at a high current density of 2 A g−1. An estimation of Li ion diffusion from the electrochemical impedance data showed a major enhancement of the rate by a factor of 2 in the case of Fe3SnC@CNF compared to the single‐phase Fe3SnC sample. Post‐cyclic characterisation revealed that the unit cell was retained despite a volume expansion upon the inclusion of four Li atoms per unit cell, as calculated from the capacity value. The cyclic voltammogram shows four distinctive peaks that could be identified as the sequential incorporation of up to four Li atoms. First‐principles DFT calculations were performed to elucidate the favourable sites for the inclusion of 1–4 Li atoms inside the Fe3SnC unit cell along with the associated strain.
Uncovering Multiple Metal–Metal Bonding in a Tetranuclear Fluoride Rhenium Cluster or the Curious Case of {[Ni(H2O)6](NH4)4}[Re4F18]·4H2O
Authors: Mariappan Balasekaran Samundeeswari , Lawler Keith , Hagenbach Adelheid , Abram Andrea , Abram Ulrich , Sattelberger Alfred , Poineau Frederic
Published: September 2019

The compound {[Ni(H2O)6](NH4)4}[Re4F18]·4H2O (1) has been isolated and characterized by single‐crystal X‐ray diffraction, Raman spectroscopy and computational methods. The compound 1 crystallizes in the triclinic space group P1 (a = 6.6620(9) Å, b = 9.7121(13) Å, c = 11.2007(15) Å, α = 67.644(2)°, β = 83.827(2)°, γ = 84.366(2)°). In 1, the [Re4F18]6– anion is composed of four Re(III) atoms bridged by two µ‐bridging fluorine atoms and two di‐µ‐bridging fluorine atoms. In [Re4F18]6–, the shortest Re–Re distance (i.e., 2.3631(6) Å) is characteristic of the presence of a Re=Re double bond; the Re–F distances range from 1.854(6) to 2.008(5) Å. Theoretical calculations confirm the presence of a weak Re=Re double bond; the Mayer–Mulliken bond order of the doubly bridged Re atoms is 1.8097 and the natural localized molecular orbital bond order is 1.8751. The Raman spectrum of 1 has been measured and shows a series of bands in the region 167–1449 cm–1 that have been attributed to Re–F and Ni–O stretches, Re4F18 ring breathing and NH4+ bending and libration modes.
Stabilizing Magnesium Hydride Complexes with Neutral Ligands
Authors: Wiesinger Michael , Maitland Brant , Elsen Holger , Pahl Jürgen , Harder Sjoerd
Published: September 2019

The reaction of Mg[N(SiMe3)2]2 with PhSiH3 in benzene at room temperature gave a white precipitate of approximate constitution MgH1.5N′′0.5. This undefined hydride rich Mg salt can be dissolved by addition of well‐known neutral donors, such as PMDTA, DABCO or the N‐heterocyclic carbene IMeiPr (N,N′‐diisopropyl‐2,3‐dimethylimidazol‐2‐ylidine). This allowed for crystallization and structural characterization of five new magnesium hydride complexes: Mg2(µ‐H)2N′′2·(PMDTA) (1), Mg4(µ‐H)6N′′2·(PMDTA)2 (2), Mg5(µ‐H)7N′′3·(PMDTA)2 (3), Mg2(µ‐H)2N′′2·(DABCO)2 (4) and Mg2(µ‐H)2N′′2·(IMeiPr)2 (5). The PMDTA complexes 1–3 were only isolated as mixtures that could not be separated but complexes 4 and 5 have been fully characterized. The structures of the Mg hydride complexes 1, 4 and 5 are reproduced well by DFT calculations (B3PW91/6‐311++G**). Bonding between Mg and hydride is largely ionic (circa 80 %) and there is very little charge transfer from the neutral donor to Mg2+. The calculated solvation enthalpies (ΔHsolv) per ligand are –12.4 kcal/mol (PMDTA), –15.9 kcal/mol (DABCO) and –20.8 kcal/mol (IMeiPr). In complexes 4 and 5 Bond‐Critical‐Points are found between the two negatively charged hydride ligands. The very high electron densities of 0.15–0.16 e/Å3 in these unusual BCP's are related to the short H–···H– distances of circa 2.55 Å.