bluuebunny/crossref_metadata_2025 huggingface dataset:
Gastric Undifferentiated Pleomorphic Sarcoma Presenting as a Rapidly Growing Subepithelial Tumor
Authors: Ryu Dae Gon , Choi Cheol Woong
Published: September 2024

A 48-year-old man presented to our hospital for evaluation of melena. Abdominal computed tomography (CT) revealed an endophytic contrast-enhanced mass (approximately 9 cm) in the gastric fundus and upper body. CT showed no evidence of metastasis to other organs. Endoscopic examination revealed a large mass accompanied by an exudate and signs of surface hemorrhage. The shape of the mass resembled that of a subepithelial tumor, and >50% of the mucosa was peeled off. Endoscopic ultrasonography revealed hyperechoic spreading and dotor rod-shaped anechoic lesions arranged within an overall hypoechoic mass. The patient underwent total gastrectomy with lymph node dissection and was diagnosed with undifferentiated pleomorphic sarcoma without lymph node metastasis. Undifferentiated pleomorphic sarcoma, a high-grade aggressive soft tissue sarcoma, predominantly involves the extremities and rarely the stomach. It is usually asymptomatic but tends to grow rapidly. Endoscopic imaging performed a year prior to presentation was unremarkable. We report a case of a gastric undifferentiated pleomorphic sarcoma that presented as a rapidly growing subepithelial tumor. Malignancies other than a gastrointestinal stromal tumor should be considered in the differential diagnosis in patients presenting with a rapidly growing gastric subepithelial tumor.
Kalimate-Associated Gastric Ulcer
Authors: Lee Tae Yeong , Park Jong Kyu , Lee Sang Jin , Noh Byeong-Joo
Published: September 2024

Kalimate (calcium polystyrene sulfonate) is a cation-exchange resin commonly used in clinical practice to treat hyperkalemia. However, Kalimate has been demonstrated to also cause serious gastrointestinal injuries, such as colonic necrosis, ulcerations, and perforations, in a subset of patients with chronic renal failure; these cases have been reported with and without the administration of hypertonic sorbitol. These lesions usually occur in the large or small intestine; lesions occurring in the stomach are rarely reported. We present the case of a 62-year-old woman with very large Kalimate-induced gastric ulcers that were mistaken for advanced gastric cancer in patients with chronic renal failure who had been taking Kalimate for the previous 3 months. The patient was successfully treated by discontinuing Kalimate and initiating a proton pump inhibitor.
Endoscopic Treatment of Gastric Bezoars: A Report of Three Cases
Authors: Choe Younghee , Kim Joon Sung , Kim Byung-Wook
Published: September 2024

Bezoars, including phytobezoars, trichobezoars, and pharmacobezoars, are accumulations of undigested substances in the gastrointestinal tract. We report three cases of gastric bezoars. Case 1: An 86-year-old woman presented with a one-month history of abdominal pain and vomiting. Esophagogastroduodenoscopy revealed gastric bezoars; consumption of 2 L of cola daily for 2 weeks resulted in complete disappearance of the bezoars. Case 2: An asymptomatic 63-year-old woman underwent esophagogastroduodenoscopy, which revealed a gastric bezoar. Cola spraying and endoscopic lithotomy were ineffective; therefore, the patient underwent laparoscopic removal of the bezoar for management of small bowel obstruction secondary to the bezoar fragments. Case 3: A 6-year-old girl with a history of pica underwent two laparoscopic surgeries 10 months apart for recurrent trichobezoars. We report our treatment approach in three patients who presented with gastric bezoars.
Duodenal Bezoar: A Rare Cause of Acute Pancreatitis
Authors: Kacou Henriette Ya Kissi Anzouan , Kim Young-Il
Published: September 2024

Gastrointestinal bezoars often occur as a complication of previous gastric surgery or in patients with altered gastrointestinal motility. Complications associated with gastrointestinal bezoars include perforation, peritonitis, protein-losing enteropathy, and acute appendicitis. Acute pancreatitis secondary to a duodenal bezoar is rare, and few studies have reported this complication. We report a case of acute pancreatitis and subsequent duodenal obstruction caused by a large duodenal phytobezoar.
Long-Term Outcomes and Risk Factors for Lymph Node Metastasis in Siewert Type II/III Early Gastric Cancer
Authors: Son Min Young , Cho Dae Hyeon , Kim Sung Eun , Park Seun Ja , Park Moo In , Moon Won , Kim Jae Hyun , Lee Jung Wook , Jung Kyoungwon
Published: September 2024

Objectives: The incidence of adenocarcinomas of the esophagogastric junction (EGJ) and cardia has been gradually increasing in the East. Cancers of the EGJ and gastric cardia have poor prognoses. This study aimed to investigate lymph node metastasis (LNM) rates, their predictive factors, and determine the long-term outcomes of patients with Siewert type II/III early gastric cancer (EGC).Methods: Between January 2014 and June 2022, a total of 573 patients with gastric cancer, including 130 with Siewert type II/III EGC, underwent total gastrectomies at the Kosin University Gospel Hospital. Factors associated with LNM were analyzed using a logistic regression model.Results: Of the 130 patients with Siewert type II/III EGC, 10 (7.7%) demonstrated LNM (LNM-positive group). Macroscopically elevated lesions (I+IIa) (60.0% vs. 16.7%; p=0.009) and lymphovascular invasion (70.0% vs. 5.8%; p<0.001) were more common and the depth of invasion was deeper (p=0.003) in the LNM-positive patients than in the LNMnegative group. Multivariate analysis showed that macroscopically elevated lesions (odds ratio [OR], 19.48; 95% confidence interval [CI], 1.93–197.11; p=0.012) and lymphovascular invasion (OR, 52.63; 95% CI, 5.26–526.51; p=0.001) were associated with LNM. Kaplan–Meier analysis revealed that the 5-year overall and disease-specific survival rates of patients with Siewert type II/III EGC were 90.0% and 98.9%, respectively. During a median follow-up period of 49 months (range, 12–122 months), one patient (0.8%) died owing to gastric cancer recurrence.Conclusions: Patients with Siewert type II/III EGC showed favorable long-term outcomes. Macroscopically elevated lesions and lymphovascular invasion are associated with LNM.
Serum PCSK9 is a novel serological biomarker for the diagnosis and prognosis of pancreatic cancer
Authors: Xu Ying , Xu Yongfeng , Yang Yang , Zhang Zhiwei , Xiong Qunli , Zhu Qing
Published: September 2024

Background

Although CA19-9 is an essential blood biomarker of pancreatic cancer (PC), its sensitivity and specificity are limited for early detection.

Methods

We analyzed the serum proprotein convertase subtilisin/kexin type 9 (sPCSK9) in PC patients, benign disease groups (BDG), and healthy controls (HC) by ELISA.

Results

Consistently, sPCSK9 was considerably lower in PC patients than in HC (Z = −2.546, P < 0.05), and sPCSK9 in PC patients was statistically significantly higher than in BDG (Z = −5.457, P < 0.001). sPCSK9 was linked to the invasion of lymph nodes (χ2 = 6.846, P < 0.01). According to ROC curves, combining sPCSK9 with CA19-9 could potentially enhance the diagnostic capability of CA19-9 in early-stage PC patients. Furthermore, the low sPCSK9 group (n = 41) exhibited statistically significantly prolonged overall survival compared to the high sPCSK9 group (n = 15), with median survival times of 27 months (95% CI [17.59–36.41]) and 11 months (95% CI [7.21–14.79]), respectively (P = 0.022).

Conclusion

The diagnostic performance of CA19-9 for early-stage PC patients could be improved by combining sPCSK9 with CA19-9. Moreover, the higher sPCSK9 group has a significantly shorter overall survival rate.
Transitando hacia paisajes resilientes ante incendios forestales: evaluación de los paisajes en las interfaces urbano-forestales del Área Metropolitana de Concepción - Chile
Authors:   , Ojeda Leal Carolina Grace
Published: September 2024

El Área Metropolitana de Concepción (AMC) es un territorio moldeado por dinámicas urbanas, forestales e industriales/infraestructura sin ordenamiento, lo que las ha hecho un terreno fértil para la expansión de los incendios forestales desde las interfaces urbano-forestales hacia las zonas urbanas formales e informales contiguas. En esta investigación se triangularon varias técnicas para evaluar la resiliencia de las interfaces ante incendios forestales. Un punto focal fue definir las interfaces a través de ejercicios de observación directa, indirecta y documentación del paisaje desde 15 puntos de terreno seleccionados en diferentes escalas temporales: meses (análisis de sitio con una ficha de terreno y conversaciones espontáneas con habitantes locales), años (imágenes satelitales y cuestionarios tipo DELPHI a expertos/as), y décadas (imágenes satelitales, cambios de uso de suelo y re-fotografía). Otro punto focal fue elaborar propuestas tras una revisión bibliográfica de medidas nacionales e internacionales. Los resultados mostraron que, en primer lugar, se observa indirectamente que los disturbios alteran brevemente los componentes visuales del paisaje (invierno – verano), ya que tras el disturbio las coberturas de suelo son autoorganizadas antrópicamente, es decir, vuelven a su estado original (ej. de cubierta forestal adulto a forestal renoval) o cambian entre ellas representando una paradójica vulnerabilidad que generará nuevos incendios forestales. En segundo lugar, se observó que las interfaces urbano-forestales albergan cinco tipologías de paisajes que se acercan o alejan de la resiliencia ante incendios. En tercer lugar, se elaboraron 12 medidas de gestión, planificación, normativa e investigación que los/as tomadores/as de decisiones del AMC pueden considerar. Finalmente, se discutió el papel de las interfaces urbano-forestales en la generación de paisajes resilientes ante incendios forestales, el impacto de las dinámicas del AMC en la resiliencia de los paisajes ante disturbios, y, la importancia del concepto de resiliencia aplicado a los paisajes en la planificación y gestión territorial del caso de estudio.
Delving into the phenomenology of very special relativity: from subatomic particles to binary stars
Authors:   , SANTONI ALESSANDRO
Published: September 2024

En esta tesis, se investigan las implicaciones de las teorías de violación de Lorentz (LV), enfocándose en Very Special Relativity (VSR) y sus consecuencias fenomenológicas. Presentada inicialmente como un mecanismo alternativo para las masas de los neutrinos, VSR se ha convertido en una parte significativa del marco general de la LV, distinguida por su estructura de grupo y la presencia de operadores no locales.Después de una introducción exhaustiva a los principios de la LV y VSR, presentamos sus modificaciones a la ecuación de Dirac. Una parte significativa de la tesis está dedicada al desarrollo de un formalismo Hamiltoniano dentro del contexto de VSR, abordando sus no-localidades. Este enfoque se extiende al límite no relativista, conectándolo al esquema de Schrödinger.Luego establecemos límites superiores en los parámetros de VSR, examinando sus correcciones a una amplia gama de sistemas y escenarios físicos, como los niveles de Landau de partículas cargadas, el factor g de los electrones, el espectro de energía de neutrones ultrafríos en el campo gravitatorio terrestre, y la emisión gravitacional de estrellas binarias. Este último análisis nos llevó a la construcción de una teoría de campo en VSR para partículas de espín-2, que resultó acomodar una masa del gravitón gauge-invariante.Mediante este estudio, conectamos varias predicciones teóricas con datos experimentales, allanando el camino para futuras exploraciones en teorías de LV y evidenciando su potencial para abordar preguntas no resueltas en la física moderna.
Incidence of Root-Knot Nematode on Misai Kucing (Orthosiphon stamineus) in Peninsular Malaysia: A New Discovery
Authors: B. Mohd Nazri, , A.Z. Nur Saliha, , M.Y. Sauli, , W.A. Wan Khairul Anuar, , M. Patahayah, , M.Y. Masnira, , S.B. Tang, , J. Rosliza, , M.Z. Nurin Izzati, , A.B. Nur Khairani, , A. Mohd Rani,
Published: September 2024

A survey was conducted over one and half years to estimate the occurrence of root-knot nematode infestation on Ortosiphon stamineus (misai kucing) in selected locations around Peninsular Malaysia. Infestations were monitored in ten misai kucing plantation areas in Pulau Pinang, Perak, Negeri Sembilan, Selangor, Johor, Terengganu, and Kelantan. The survey indicated that misai kucing grown on sandy clay-type soil tends to be more susceptible to heavy root-knot nematode infestation. The highest frequency of disease incidence in which almost all the roots of misaim kucing have a knot-like appearance (100%) was reported from the Batu Kurau area. The other two locations, Ipoh and Pantai Baru, had mild infestations, and these were reported as 16% and 4% incidence. The methodology for access the damage caused by the root-knot nematodes in misai kucing, Meloidogyne gall index and its egg-mass index were calculated and these were found in the range of 1-4. The average egg mass from ten randomly selected stunted misai kucing plants from Batu Kurau was recorded as 599.4, with the highest number of 2274 egg mass per plant. Sampled plants showed the significant presence of Meloidogyne incognita. The root-knot nematodes were morphologically identified based on the perineal patterns of females and the head morphology of both Meloidogyne females and males.
Role of Arbuscular Mycorrhizal Fungi in Alleviating Salinity Stress and Improving Physiological Parameters of Wheat (Triticum aestivum L.): A Review
Authors: Senthilkumar T , Prabhavathi S.Jaya , Kumar M.Senthil , Gayathry G. , Ejilane S. , Ramasamy M. , Dhanalakshmi K. , Chitra K. , Malathi G.
Published: September 2024

Salinity stress poses a significant threat to global wheat production, impacting crop yield and food security. In recent years, Arbuscular Mycorrhizal Fungi (AMF) have gained attention as potential bioinoculants capable of mitigating salinity-induced stress and improving plant physiological parameters. This review provides a comprehensive examination of the role of AMF in alleviating salinity stress and enhancing physiological parameters in wheat (Triticum aestivum L.). Through a systematic analysis of relevant literature, we explore the mechanisms underlying the beneficial interactions between AMF and wheat under saline conditions. Key findings from various studies demonstrate that AMF colonization enhances wheat growth, nutrient uptake, and antioxidant enzyme activities, while reducing the adverse effects of salinity stress. However, challenges such as variability in AMF effectiveness and compatibility with modern agricultural practices persist. Future research directions should focus on refining AMF inoculation techniques and developing strains with enhanced salt tolerance to maximize their potential in sustainable agriculture. Overall, this review underscores the promising role of AMF in revolutionizing wheat cultivation in saline environments, offering insights for enhancing crop productivity and resilience to salinity stress.
Green Synthesis of Nanomaterials with Phytochemicals for Treating Multidrug Resistant Bacteria
Authors: Nikhil Vadlamudi , Sanjay Ayla , Khizer Mohammad Aftab , Asif Mohd , Alvi Syed Shah MinAllah , Pasha Chand
Published: September 2024

The Bacteria with Multidrug resistance and Extreme drug resistance are increasing at a rapid rate. Various methods have been employed to combat drug resistant bacteria. Major classes of antibiotics aren’t effective against these bacteria. Alternative methods have been studied in recent years. Nanoparticles are used against multidrug resistant bacteria; The green synthesized nanoparticles are more reliable due to more shelf life and lesser toxicity relative to chemically synthesized nanoparticles. Multi drug resistant E. coli and Staphylococcus aureus was isolated from sewage samples. Green synthesized nanoparticles from various plants samples have been prepared with Zinc and Copper forming respective oxides with Neem, Nakara, Jatropha, Mango, Clove, Ginger, Cardamom, Cinnamon and Betel against multidrug resistant Escherichia coli and Staphylococcus aureus. Isolated E. coli was susceptible to Fluoroquinolone and Augmentin whereas S. aureus was susceptible to vancomycin. Green synthesized nanoparticles had more antimicrobial activity against E. coli and S. aureus than chemically synthesized nanoparticles and plant extracts. Green synthesized Nakara CuO nano particles had inhibition zone of 31 ±0.6mm and 30 ±0.7mm for E. coli and S. aureus respectively, ZnO nano particles of Nakara had 25 ±0.6mm inhibition zone for E. coli and S. aureus. Green synthesized Jatropha CuO nano particles had inhibition zone of 26 ±0.5 and 26 ±0.4mm for E. coli and S. aureus. ZnO nano particles of Jatropha had 31±0.7mm and 30±0.7mm inhibition zone for E. coli and S. aureus respectively. The Scanning electron microscopy studies revealed 26nm Jatropha ZnO and 25nm Nakara CuO nanoparticles. Nano materials were found to be non-toxic in cell line studies. The present study concludes to study the impact of green synthesized nanoparticles as an alternative to antibiotics to combat multidrug resistant bacteria.
Social Media Addiction and It’s Impact on University of Cape Coast Distance Education Students’ Academic Achievement
Authors: Abdul-Latif Chambas Alhaji , Kor Jacob Aaworb-Nang Maabobr , Stephen Nanyele
Published: September 2024

The study examined the influence of social media usage on the academic performance of students at the College of Distance Education, University of Cape Coast. The research work utilized a descriptive survey design with a quantitative methodology. The study's target population comprised students enrolled in the College of Distance Education at the University of Cape Coast. The research instrument employed was a questionnaire that assessed students' social media usage. A total of 267 participants were sampled using a multistage sampling technique, and data was collected through the self-developed questionnaire. The collected data was analysed using descriptive statistics. The study disclosed that WhatsApp was the most frequently used social media site, with Facebook, Instagram, and Twitter following closely behind. The study found that excessive use of social media can result in a lack of focus on studies and spending the majority of time online, which negatively affects academic performance. It is recommended that the management of the College of Distance Education, University of Cape Coast, should guide and educate students on the dangers of being addicted to social media usage since too much time spent on social media sites could affect students’ academic performance. Such stakeholders should counsel students on the judicious use of social media.
Experimental Study of Hypolipidemic Effect of Manjal Noiku Kudineer
Authors: Aiswarya K. , Pandian G. Essakky
Published: September 2024

Hyperlipidemia, is a major stake for the development of serious diseases like atherosclerosis, Coronary Artery Diseases, Stroke. Siddha system of Medicine with the numerous combination of medicines has Manjal Noiku Kudineer(MNK), a Siddha poly herbal formulation indicated for Manjal Noi. This study deals with the Hypolipidemic activity of Manjal Noiku Kudineer on atherogenic diet induced hyperlipidemia in experimental Wistar Albino Rats
Place of Study: The study was conducted at Arulmigu Kalasalingam College of Pharmacy, Virudhunagar.
Methodology: The study protocol for MNK was reviewed and approved by Institutional Animal Ethics Committee (IAEC), Arulmigu Kalasalingam College of Pharmacy, Virudhunagar, with the IAEC number AKCP/IAEC/10/24-25. The experimental hyperlipidemic diet consists of well-pulverized 400 mg/kg cholesterol, 50 mg/kg cholic acid, and coconut oil. All groups other than the control group were fed the prepared atherogenic meal in lieu of the regular pellet diet. Group I served as normal control, Group II represented hyperlipidemic control rats given an atherogenic diet, Group III and IV represented test groups given MNK 200 mg/kg and MNK 400 mg/kg, respectively, and Group V represented standard-administered atorvastatin (10 mg/kg/day). All groups were compared, observations were noted and the observations were statistically evaluated.
Results: The study shows the results of reduction in body weight, blood lipid profile, liver lipid profile of hyperlipidemic rats on treating with the study medicine, which possess hypolipidemic activity. Histopathologic images of rat liver also shown normal parenchyma and parenchyma with minimal necrosis and minimal inflammatory changes on treating with the study medicine MNK.
Conclusion: The results stands as a support for MNK hypolipidemic activity, which in turn can be used as a antihyperlipidemic therapeutic agent from the Siddha System of Medicine.
Solar XUV and ENA‐driven water loss from early Venus' steam atmosphere
Authors: Lichtenegger H. I. M. , Kislyakova K. G. , Odert P. , Erkaev N. V. , Lammer H. , Gröller H. , Johnstone C. P. , Elkins‐Tanton L. , Tu L. , Güdel M. , Holmström M.
Published: April 2016

We present a study on the influence of the upper atmosphere hydrodynamic escape of hydrogen, driven by the solar soft X‐ray and extreme ultraviolet radiation (XUV), on an expected outgassed steam atmosphere of early Venus. By assuming that the young Sun was either a weak or moderately active young G star, we estimated the water loss from a hydrogen dominated thermosphere due to the absorption of the solar XUV flux and the precipitation of solar wind produced energetic hydrogen atoms (ENAs). The production of ENAs and their interaction with the hydrodynamic extended upper atmosphere, including collision‐related feedback processes, have been calculated by means of Monte Carlo models. ENAs that collide in the upper atmosphere deposit their energy and heat the surrounding atmosphere mainly above the main XUV energy deposition layer. It is shown that precipitating ENAs modify the thermal structure of the upper atmosphere, but the enhancement of the thermal escape rates caused by these energetic hydrogen atoms is negligible. Our results also indicate that the majority of oxygen arising from dissociated H2O molecules is left behind during the first 100 Myr. It is thus suggested that the main part of the remaining oxygen has been absorbed by crustal oxidation.
Weakening and moistening of the summertime Saharan heat low through convective cold pools from the Atlas Mountains
Authors: Redl Robert , Knippertz Peter , Fink Andreas H.
Published: April 2016

The West African Monsoon (WAM) and its representation in numerical models is heavily influenced by the Saharan heat low (SHL), a low‐pressure system driven by radiative heating over the central Sahara and ventilated by the cold and moist inflow from adjacent oceans. It has recently been shown that a significant part of the southerly moisture flux into the SHL originates from convective cold pools over the Sahel. These density currents driven by evaporation of rain are largely missing in models with parameterized convection. This crucial issue has been hypothesized to contribute to the inability of many climate models to reproduce the variability of the WAM. Observations from the Atlas Mountains, located at the northern flank of the SHL, indicate frequent convection and cold‐pool generation during boreal summer, often during episodes of multiple days. This study is the first to analyze impacts of such convective periods on the SHL, based on simulations of two example cases using the Weather Research and Forecast (WRF) model at convection‐permitting resolution. Sensitivity experiments with artificially removed cold pools, lower resolutions, and parameterizations are conducted. Results indicate that cold pools lead to increases in surface pressure of more than 1 hPa and significant moisture transports into the desert over several days. This moisture affects radiative heating and thus the energy balance of the SHL. Together with studies focusing on the Sahel, this work emphasizes the need for improved parameterization schemes for deep convection in order to produce more reliable climate projections for the WAM.
Global statistical maps of extreme‐event magnetic observatory 1 min first differences in horizontal intensity
Authors: Love Jeffrey J. , Coïsson Pierdavide , Pulkkinen Antti
Published: April 2016

Analysis is made of the long‐term statistics of three different measures of ground level, storm time geomagnetic activity: instantaneous 1 min first differences in horizontal intensity ΔBh, the root‐mean‐square of 10 consecutive 1 min differences S, and the ramp change R over 10 min. Geomagnetic latitude maps of the cumulative exceedances of these three quantities are constructed, giving the threshold (nT/min) for which activity within a 24 h period can be expected to occur once per year, decade, and century. Specifically, at geomagnetic 55°, we estimate once‐per‐century ΔBh, S, and R exceedances and a site‐to‐site, proportional, 1 standard deviation range [1 σ, lower and upper] to be, respectively, 1000, [690, 1450]; 500, [350, 720]; and 200, [140, 280] nT/min. At 40°, we estimate once‐per‐century ΔBh, S, and R exceedances and 1 σ values to be 200, [140, 290]; 100, [70, 140]; and 40, [30, 60] nT/min.
Annular modes and apparent eddy feedbacks in the Southern Hemisphere
Authors: Byrne Nicholas J. , Shepherd Theodore G. , Woollings Tim , Plumb R. Alan
Published: April 2016

Lagged correlation analysis is often used to infer intraseasonal dynamical effects but is known to be affected by nonstationarity. We highlight a pronounced quasi 2 year peak in the anomalous zonal wind and eddy momentum flux convergence power spectra in the Southern Hemisphere, which is prima facie evidence for nonstationarity. We then investigate the consequences of this nonstationarity for the Southern Annular Mode and for eddy momentum flux convergence. We argue that positive lagged correlations previously attributed to the existence of an eddy feedback are more plausibly attributed to nonstationary interannual variability external to any potential feedback process in the midlatitude troposphere. The findings have implications for the diagnosis of feedbacks in both models and reanalysis data as well as for understanding the mechanisms underlying variations in the zonal wind.
Alternative Visions of the Brazilian City: In conversation with Herzog & de Meuron Senior Partner Ascan Mergenthaler
Authors: Hartman Hattie
Published: April 2016

What does it take to design sensitively and inclusively in Brazil? In the lead up to Rio 2016, Herzog & de Meuron have designed two projects: the Cultural Complex Luz in São Paulo (2012) and the Arena do Morro in Natal (2014). The former being unrealised and the second built and in use. To find out more about the approach that the premier Swiss practice took to these buildings, Guest‐Editor Hattie Hartman interviewed Herzog & de Meuron's Senior Partner Ascan Mergenthaler.
Salvador: The Struggle for Dialogue Within a Heritage City
Authors: Ekerman Sergio
Published: April 2016

Founded by the Portuguese in the mid‐16th century as the colonial capital of Brazil, Salvador da Bahia on the northeast coast retains to this day a unique historical centre. Now a burgeoning metropolis, Salvador is also the country's third largest city with all the social, political and infrastructure problems and inequalities that accompany explosive urban growth. Sergio Ekerman, an architect and professor at the Federal University of Bahia (UFBA) in Salvador, describes how a lack of political will and consensus between private and public stakeholders is failing to produce the dialogue necessary for coherent urban development.
Neanderthal genomics suggests a pleistocene time frame for the first epidemiologic transition
Authors: Houldcroft Charlotte J. , Underdown Simon J.
Published: April 2016

High quality Altai Neanderthal and Denisovan genomes are revealing which regions of archaic hominin DNA have persisted in the modern human genome. A number of these regions are associated with response to infection and immunity, with a suggestion that derived Neanderthal alleles found in modern Europeans and East Asians may be associated with autoimmunity. As such Neanderthal genomes are an independent line of evidence of which infectious diseases Neanderthals were genetically adapted to. Sympathetically, human genome adaptive introgression is an independent line of evidence of which infectious diseases were important for AMH coming in to Eurasia and interacting with Neanderthals. The Neanderthals and Denisovans present interesting cases of hominin hunter‐gatherers adapted to a Eurasian rather than African infectious disease package. Independent sources of DNA‐based evidence allow a re‐evaluation of the first epidemiologic transition and how infectious disease affected Pleistocene hominins. By combining skeletal, archaeological and genetic evidence from modern humans and extinct Eurasian hominins, we question whether the first epidemiologic transition in Eurasia featured a new package of infectious diseases or a change in the impact of existing pathogens. Coupled with pathogen genomics, this approach supports the view that many infectious diseases are pre‐Neolithic, and the list continues to expand. The transfer of pathogens between hominin populations, including the expansion of pathogens from Africa, may also have played a role in the extinction of the Neanderthals and offers an important mechanism to understand hominin–hominin interactions well back beyond the current limits for aDNA extraction from fossils alone. Am J Phys Anthropol 160:379–388, 2016. © 2016 Wiley Periodicals, Inc.
ChemInform Abstract: SYNTHESIS OF CUBIC BORON NITRIDE SINGLE CRYSTALS IN SYSTEMS CONTAINING HYDROGEN
Authors: VERESHCHAGIN L. F. , GLADKAYA I. S. , DUBITSKII G. A. , SLESAREV V. N.
Published: April 2016

Die Bildung von kubischem BN in den Systemen LiH‐BN, LiNH2‐BN, NaH‐BN, CaH2‐BN und BaH2‐BN bei 30‐70 kbar und 1300‐2800 K wird untersucht.
ChemInform Abstract: MOESSBAUER SPECTROSCOPY OF ELECTRODEPOSITED TIN‐NICKEL ALLOYS AND THERMALLY PREPARED NICKEL‐TIN (NI3SN2, NISN, AND NI3SN4)
Authors: LEIDHEISER H. JUN. , CZAKO‐NAGY I. , VARSANYI M. L. , VERTES A.
Published: April 2016

Das Mößbauer‐Spektrum von elektrochemisch auf einem Cu‐Substrat abgeschiedenem NiSn ist dem von thermisch aus der Schmelze dargestellten NiSn sehr ähnlich, so daß die Mößbauer‐Spektroskopie keine geeignete Methode zur Unterscheidung der Strukturunterschiede solcher Präparate darstellt.
ChemInform Abstract: AN ELECTROCHEMICAL STUDY OF THE COMPLEX MANGANESE‐GOLD‐MERCURY AMALGAMS
Authors: DOWGIRD A. , GALUS Z.
Published: April 2016

Mit Hilfe potentiemetrischer, chronoamperometrischer und voltammetrischer Methoden wird die Reaktion zwischen Au und Mn in Hg untersucht.
ChemInform Abstract: KINETICS OF AQUATION OF BROMOPENTAAMMINECHROMIUM(III) AND BROMOPENTAAMMINECOBALT(III) IONS IN WATER‐ALCOHOL SOLVENTS
Authors: HOLBA V. , GRANCICOVA O.
Published: April 2016

Die Geschwindigkeitskonstanten und Aktivierungsparameter der Aquotisierungsreaktionen werden in Mischungen von H2O mit MeOH, EtOH, iPrOH und tBuOH bestimmt.
ChemInform Abstract: STUDY OF FORMATION REACTION OF LEAD TANTALUM MANGANESE OXIDE (PB2TAMNO6)
Authors: KULESHOVA T. B. , RAZUMOVSKAYA O. N. , MOLCHANOVA R. A.
Published: April 2016

Die Bildung von Pb2TaMnO6 aus den Oxiden wird thermogravimetrisch und röntgenographisch untersucht.
ChemInform Abstract: AN INTERPRETATION OF A GENERAL SCALE OF SOLVENT POLARITIES. A SIMPLIFIED REACTION FIELD THEORY MODIFICATION
Authors: ABBOUD J.‐L. M. , TAFT R. W.
Published: April 2016

Es werden lineare Beziehungen für die Einflüsse polar Lösungsmittel auf unterschiedliche Eigenschaften neutraler, stark polarer gelöster Stoffe abgeleitet, z.B. NMR‐Verschiebungen, Solvatations‐, Aktivierungsenergien, π‐1r ‐Übergänge und molekulare Dipolmomente.
ChemInform Abstract: PHOTOELECTRON SPECTRA AND CONFORMATIONS OF BI‐ AND TRICYCLIC HEXAHYDRO‐1,2,4,5‐TETRAZINES
Authors: RADEMACHER P. , BREIER H. , POPPEK R.
Published: April 2016

Konformationsanalyse für die Verbindungen (I)‐(VI) in der Gasphase anhand der PE‐Spektren.
ChemInform Abstract: CNDO/2 STUDY OF THE ISOELECTRONIC SERIES OF COMPLEXES DICARBONYL(DINITROGEN)‐ AND DICARBONYL‐η‐BENZENECHROMIUM, ‐η‐CYCLOPENTADIENYLMANGANESE, ‐η‐CYCLOBUTADIENEIRON, AND ‐TRISMETHYLENEMETHANEIRON OBTAINED BY THE MATRIX ISOLATION TECHNIQUE
Authors: FITZPATRICK N. J. , REST A. J. , TAYLOR D. J.
Published: April 2016

Die untersuchten Distickstoff‐Verbindungen wurden durch UV‐Photolyse der Tricarbony1‐ligand‐metall‐Komplexe in Stickstoff‐Matrizen, die N2 ‐freien Verbindungen in einer Argon‐ bzw. Methan‐Matrix gebildet.
ChemInform Abstract: QUENCHING OF TRIPLET STATES OF AROMATIC HYDROCARBONS BY QUINONES DUE TO CHARGE‐TRANSFER INTERACTIONS
Authors: WILKINSON F. , SCHROEDER J.
Published: April 2016

Die Geschwindigkeitskonstanten (kQ) für das Löschen der Triplett‐Zustände aromatischer Kohlenwasserstoffe durch Benzochinon, Toluchinon und Xylochinon in Benzol bei Raumtemp. werden mit Hilfe der Nanosekunden‐Lase photolyse gemessen.
ChemInform Abstract: EQUILIBRIUMS AND KINETICS OF COPPER(II) COMPLEX FORMATION OF A LINEAR AND OF 13‐15‐MEMBERED MACROCYCLIC DIOXOTETRAAMINES
Authors: KODAMA M. , KIMURA E.
Published: April 2016

Die Komplexbindungseigenschaften der Titelliganden (Ia), (IIa) und (IIIa),die innere Amidbindungen enthalten werden hinsichtlich ihrer strukturellen Relevanz zu den Tetraaminen (Ib), (IIb) und (IIIb) sowie den Tripeptiden (IV) und (V) untersucht.
ChemInform Abstract: THE STABILITIES OF MEISENHEIMER COMPLEXES. PART 16. KINETIC AND EQUILIBRIUM DATA FOR SODIUM ISOPROPOXIDE ADDITION TO SOME AROMATIC NITRO COMPOUNDS IN PROPAN‐2‐OL
Authors: CRAMPTON M. R. , GIBSON B. , GILMORE F. W.
Published: April 2016

Die Geschwindigkeitskonstanten für die Bildung von (IIa) aus (Ia) und Na‐isopropanolat ‐betragen 1,95 l0′3‐13.8°C 1O′3 /s und nehmen mit steigender Basenkonzentration zu.
ChemInform Abstract: ANODIC OXIDATION OF ORGANIC COMPOUNDS. PART 22. ANODIC HYDROXYLATION AND ACETAMIDATION OF CONJUGATED DIENES
Authors: BALTES H. , STORK L. , SCHAEFER H. J.
Published: April 2016

Das Reaktionsschema gibt die Produktverteilung bei der anodischen Oxidation der Verbindungen (I), (VIII), (XVI), (XX) und (XXIII) in wasserhaltigem Acetonitril bzw. in Acetonitril enthaltenden L′ sungsmittelgemischen in Gegenwart von NaClO4 als Leitsalz wieder.
ChemInform Abstract: EFFECT OF DIENE 1,4‐DISTANCE ON THE REACTIVITY IN DIELS‐ALDER REACTIONS
Authors: SUSTMANN R. , BOEHM M. , SAUER J.
Published: April 2016

Aus den kinetischen Daten für die Titelreaktion zwischen Tetracyanethylen (I) (k2=9.60 bis 0.04 l/mol·s) oder Maleinsäureanhydrid (k2=359·10‐4 bis 1.73·1O‐4l/mol·s) und Dienen wie z.B. (II) oder (IV), die über ähnliche HOMO‐Energien verfügen, wird gefolgert, daß das Dien um so reaktiver ist, je kürzer der Dien‐1,4‐Abstand ist.
ChemInform Abstract: NAPHTHALENE TETRACHLORIDES AND RELATED COMPOUNDS. PART 7. PRODUCTS OF METHANOLYSIS OF A 1‐P‐TOLYLNAPHTHALENE TETRACHLORIDE; EVIDENCE FOR A RAPID BIMOLECULAR ELIMINATION OF METHANOL FROM THE 2,3‐DICHLORO‐1‐METHOXY‐1‐P‐TOLYL‐1,2‐DIHYDRONAPHTHALENES
Authors: BEDFORD K. R. , DE LA MARE P. B. D.
Published: April 2016

Die Solvolyse der Titelverbindung (I) ergibt zunächst den Trichlorether (II) als Stereomerengemisch (67:33; Geschwindigkeitskonstante 1.14·10‐5/s).
ChemInform Abstract: BASE‐CATALYZED CLEAVAGE OF PHENACYLTRIALKYLAMMONIUM SALTS
Authors: KHANNA I. K. , NAIR P. M.
Published: April 2016

Bei der Behandlung mit Alkali erhält man ausden Ammoniumsalzen (I) die Reduktionsprodukte (II).
ChemInform Abstract: NEW SYNTHESES WITH DIAZO DIKETONES. IV. CYCLIC S‐OXIDES
Authors: CAPUANO L. , URHAHN G. , WILLMES A.
Published: April 2016

Aus den Diazoke tonen (I) werden mit entsprechenden Aminen (II) die Acylacetamide (IIIb)‐(IIIg) dargestellt.
ChemInform Abstract: ISOMOIZATION IN SUGAR CHEMISTRY. VI. DECONJUGATION OF SUGAR ENONES
Authors: TRONCHET J. M. J. , GENTILE B. , NGUYEN‐XUAN THO NGUYEN‐XUAN THO
Published: April 2016

Im Gegensatz zu ihren (Z)‐Isomeren lagern sich die verzweigten (E)‐Zuckerenone (I) und (III) beim Erhitzen in DMSO toposelektiv in die Derivate (II) um.
ChemInform Abstract: KINETICS OF OXIDATION OF GLYCINE AND VALINE BY CHLORAMINE‐T IN HYDROCHLORIC ACID MEDIUM
Authors: GOWDA N. M. M. , MAHADEVAPPA D. S.
Published: April 2016

Die Geschwindigkeitskonstanten der Titelreaktionen (0.38·10‐4‐11.05·10‐4 bzw. 1.99·10‐4‐12.90·10‐4 bei 30°C) weisen eine Abhängigkeit 1. Ordnung von der Konzentration für jeden der beiden Reaktionspartner und eine inverse Abhängigkeit von der Säurekonzentration auf.
ChemInform Abstract: KINETICS AND MECHANISM OF THE DIAZOTIZATION OF SUBSTITUTED ANILINES BY NITROSYL HALIDES. THE QUESTION OF DIFFUSION‐CONTROLLED REACTIONS
Authors: CRAMPTON M. R. , THOMPSON J. T. , WILLIAMS D. L. H.
Published: April 2016

Die Titelreaktion wird z.B. mit den Anilinen (I) und NaNO2 in HCl oder in H2 SO4/NaBr durchgeführt und liefert Geschwindigkeitskonstanten für den reversiblen Nitrosierungsschritt, die mit ansteigendem pKa‐Wert der Amine rasch.
ChemInform Abstract: AMINODICARBOXYLIC ACIDS. PART XII. ISOMERIZATION OF α,α′‐DISUBSTITUTED SUCCINIC ANHYDRIDES
Authors: BOCHENSKA M. , BIERNAT J. F.
Published: April 2016

Kondensation der Aspartinsäuren (Ia) bzw. (Ib) mit dem Phthalimid (II) ergibt die Phthaloyl‐Derivate (IIIa) bzw. (IIIb), die beim Erhitzen mit Acetylchlorid zu den Anhydriden (IV) bzw. (V) cyclisieren; wird (IIIb) mit Acetanhydrid erhitzt, so entsteht (IV), das auch durch Isomerisierung von (V) erhältlich ist.
ChemInform Abstract: REACTIONS OF THE ALUMINUM TRIBROMIDE Σ COMPLEX OF TETRAMETHYLCYCLOBUTADIENE WITH CYCLOHEXYL ISOCYANIDE HYDROLYTICALLY INDUCED FOUR‐TO FIVE‐MEMBERED RING EXPANSION
Authors: DRIESSEN P. B. J. , HOGEVEEN H.
Published: April 2016

Das aus Tetramethylcyclobutadien erhaltene Salz (I) reagiert mit Cyclohexylisonitril (II) zum Addukt (III).
ChemInform Abstract: TRANSANNULAR REACTIONS OF CYCLOALKENES, CYCLOALKADIENES AND CYCLOALKATRIENES, VII. REACTIONS OF (E)‐CYCLOOCTENE WITH N‐BROMOSUCCINIMIDE IN THE PRESENCE OF WATER OR METHANOL
Authors: HAUFE G.
Published: April 2016

Die Bromierung der Titelverbindung (I) in wäßrigem Dioxan führt zu einem Gemisch, aus dem 3 Komponenten (II), (III) und (IVa) isoliert werden konnten.
ChemInform Abstract: CYCLOPROPYL NEIGHBORING GROUP EFFECT ON THE BRIDGEHEAD REACTIVITY OF COMPOUNDS WITH A BICYCLO(2.2.2)OCTANE SKELETON
Authors: DE MEIJERE A. , SCHALLNER O. , WEITEMEYER C. , SPIELMANN W.
Published: April 2016

Bei der Photochlorierung mit tert.‐Butylhypochlorit entstehen aus den Kohlenwasserstoffen (Ia)‐ (V Ia) mit ansteigenden Relativ‐Anteilen die Brückenkopfchloride (Ib)‐(VIb) [Vlb) ist bekannt; (IIb) wird in besserer Ausb. auch aus dem Ester (XI) gewonnen] neben verschiedenen sek. Monochloriden, von denen nur (VII) [aus (IIIa); außerdem das Umlagerungsprodukt (IX)] und (Xa)/(Xb) [aus (Ia); außerdem das Umlagerungsprodukt (VIII)] identifiziert werden.
ChemInform Abstract: METHYL 3‐OXOBICYCLO(2,2,1)HEPTANE‐ AND 3‐OXOBICYCLO(2,2,2)OCTANE‐2‐CARBOXYLATES: PREPARATION AND PROPERTIES
Authors: CHAMBERLAIN P. , ROONEY A. E.
Published: April 2016

Brom‐acetylencarbonsäuremethylester (I) reagiert mit Cyclopentadien und Cyclohexadien (IIa) und (IIb) zu den Addukten (IIIa) und (IIIb die mit Methylat die Addukte (IVa) und (IVb) ergeben, welche sauer zu (V) verseift werden.
ChemInform Abstract: DISCRIMINANT‐ANALYTICAL INVESTIGATION ON THE STRUCTURAL DEPENDENCE OF HYPERGLYCEMIC AND HYPOGLYCEMIC ACTIVITY IN A SERIES OF SUBSTITUTED O‐TOLUENESULFONYLTHIOUREAS AND O‐TOLUENESULFONYLUREAS
Authors: DOVE S. , FRANKE R. , MNDSHOJAN O. L. , SCHKULJEV W. A. , CHASHAKJAN L. W.
Published: April 2016

Der Einfluß von ins esamt 22 Verbindun en der Stru tur (I) auf den Blutzuckers iegel von Ratten wird untersucht.
ChemInform Abstract: PHOTOCHEMICAL CARBAMOYLATION OF 1,1‐BIS(P‐CYANOPHENYL)ETHYLENE WITH SOME CARBAMATES
Authors: TSUJIMOTO Y. , NISHIMURA Y. , KOSAKA A. , KIRIYAMA H. , MIYAMOTO T. , ODAIRA Y.
Published: April 2016

Aus dem Bis‐p‐cyano‐diphenylethylen (I) erhält man mit den Urethanen (II) bei der Photolyse hauptsächlich die Addukte (III).
ChemInform Abstract: ANTICOAGULANT ACTIVITY OF 3,5‐DISUBSTITUTED TETRONIC ACIDS
Authors: REHSE K. , WAGENKNECHT J. , RIETBROCK N.
Published: April 2016

Wie im Formelschema skiziiert werden die Tetronsäuren (IVa) und (IVb) synthetisiert, (IVc) entstehen durch Cyclisierung entsprechender bromierter Acetessigsäureester.
ChemInform Abstract: PREPARATION OF INDOLE‐2‐CARBOXAMIDES AND ESTERS OF (INDOLE‐2‐YLCARBONYLAMINO)CARBOXYLIC ACIDS BY THE IMIDAZOLIDE METHOD
Authors: PIGULLA J. , ROEDER E.
Published: April 2016

Entsprechend dem Formelschema we den aus den Indolcarbonsäuren (I) mit dem Carbonyldiimidazol (II) nahezu quantitativ die Indolcarbonylimidazole (III) synthetisiert, die mit Aminosäureestern direkt zu den Estern (IV) reagieren.
ChemInform Abstract: STUDIES ON AZOLE COMPOUNDS. V. REACTION OF 4‐PHENYLOXAZOLE 3‐OXIDES WITH ARYLISOCYANATES TO GIVE IMIDAZOLINO(4,5‐D)OXAZOLID‐2‐ONE DERIVATIVES
Authors: GOTO Y. , HONJO N.
Published: April 2016

Die Um‐ Setzung der Oxazolin‐N‐oxide (I) mit Arylisocyanaten (II) führt zu den 2:1‐Addukten (III).
ChemInform Abstract: TOTAL SYNTHESIS OF 5‐ACETOXY‐6‐METHOXYKAWAIN
Authors: HAENSEL R. , SCHULZ J.
Published: April 2016

Kawain (Ia), dessen Racema in einer Totalsynthese zugänglich ist, wird zu dem Alkohol (Ib) oxidiert, der ohne Trennung des cis‐trans‐Gemischs zu (IIa) umgesetzt wird.
ChemInform Abstract: QUINOLYLNITROETHYLENES AND NITROSTYRYLQUINOLINES OF MOLLUSCICIDAL ACTIVITY
Authors: KAMEL M. M. , KORKOR M. I. , SHOEB H. A. , TAMMAM G. H. , EL‐AMIN S.
Published: April 2016

Um ein wirksameres Molluskicid zu finden, Wurden die Verbindungen (III) und (VI) auf den angegeben Wegen synthetisiert.
ChemInform Abstract: STUDIES ON TERTIARY AMINE OXIDES. LXIV. REACTION OF 4‐NITROQUINOLINE 1‐OXIDE AND RELATED COMPOUNDS WITH POTASSIUM CYANIDE
Authors: HAMANA M. , KUMADAKI S.
Published: April 2016

Das 4‐Nitrochinolin‐N‐oxid (II) liefert beim Erhitzen mit KOCN in Ethanol das 4‐Ethoxychinolin‐N‐oxid (I), mit KCN hingegen das Cyanhydroxychinolin (III).
ChemInform Abstract: SYNTHESES AND REARRANGEMENTS OF TERTIARY α‐ARYLALLYLAMINES
Authors: BERSCH H.‐W. , HOFF D. , SCHON D.
Published: April 2016

Das Vinyltetrahyd isochinolin (I) isomerisicrt bei Raumtemperatur zur Ethylidenverbindung (II); (I) u (II) lassen sich zu (III) hydrieren.
ChemInform Abstract: THIENO(2,3‐D)PYRIMIDINES AS POTENTIAL CHEMOTHERAPEUTIC AGENTS
Authors: RAM V. J.
Published: April 2016

Durch Methylie‐ rung von (Ia) wird (Ib) erhalten, mit POCl3 bzw. Natriumethylat werden unter Erhitzen aus (Ia) die Derivate (IIa) bzw. (IIb) gebildet, aus (IIa) sind ferner mit Thioharnstoff das Mercaptan (IIc) und mit Aminen die Verbindungen (IId) zugänglich (X = verschieden substituierte Benzyl‐ und Phenylreste, Ausbeuten 74 ‐ 93%).
ChemInform Abstract: 11‐OXO‐11H‐PYRIDO(2,1‐B)QUINAZOLINE‐8‐CARBOXYLIC ACID, AN ORALLY ACTIVE ANTIALLERGY AGENT
Authors: SCHWENDER C. F. , SUNDAY B. R. , HERZIG D. J.
Published: April 2016

Chinazolincarbonsäuren und verwandte Verbindungen werden hergestellt und im PCA‐Tcst an Ratten auf antiallergische Wirkung untersucht.
ChemInform Abstract: 8‐THIAPTERINE
Authors: FENNER H. , OPPERMANN W.
Published: April 2016

Um zu Modellsubstanzen zur Untersuchung der chemischen und spektralen Eigenschaften der 8‐Thiafolsäure (I) zu gelangen, werden auf dem beschriebenen Weg die 8‐Thiapterine (IV) synthetisiert.
ChemInform Abstract: A NOVEL SYNTHESIS OF BENZOTHIAZINES FROM BENZALANILINES
Authors: RAI M. , KUMAR S. , KRISHAN K. , SINGH A.
Published: April 2016

Die Einwirkung von Sulfen, dargestellt aus Methansulfonylchlorid und Triethylamin, auf die Benzalaniline (I) liefert nicht die erwarteten l,Z‐Cycloadditionsprodukte, sondern unter Umlagerung die Benzothiazine (II).
ChemInform Abstract: KINETIC INVESTIGATIONS ON SILICON‐ARYL CLEAVAGE WITH HYDROGEN BROMIDE
Authors: HENGGE E. , EBERHARDT H.
Published: April 2016

Mittels NMR‐spektroskopischer Untersuchungen werden die Geschwindigkeitskonstan‐ ten der Titelreaktion der Silane (I)‐(III) bestimmt.
ChemInform Abstract: SYNTHESES WITH THE COMPOUNDS R3M‐HG‐MR3. PART XVIII. THE MECHANISM OF THE PHOTOLYTIC REACTION OF PYRIDINE WITH BIS(TRIMETHYLSILYL)MERCURY, A CONTRIBUTION TO ORGANOMETALLIC PHOTOCHEMISTRY
Authors: NEUMANN W. P. , REUTER K.
Published: April 2016

Die photochemisch reduktive Silylierung von Pyridin ( und seinen Alkylderivaten) mittels (I) unter Bildung des Silylpyridinyls (IV) bzw. seines 4,4′‐Dimeren (V) verläuft überraschenderweise nicht über freie Trimethylsilylradikale.
ChemInform Abstract: ORGANOPHOSPHORUS COMPOUNDS OF EXPECTED BIOLOGICAL ACTIVITY, PART II. PREPARATION OF THIOUREA DERIVATIVES AND N‐ARYLPHOSPHOROTHIOMONOAMIDATES
Authors: ABDEL‐HAY F. I. , OMARA M. A. , EL‐BARBARY A. A. , EL‐BADAWI M.
Published: April 2016

Die durch Umsetzung von P‐pentachlorid mit aromatischen Aminen erhaltenen Cyclodiphosphazan (II) bilden bei der sukzessiven Reaktion mit KSCN und Arylaminen die Triaryl‐N‐ arylthioharnstoff‐monophosphazene (I).
ChemInform Abstract: FLUORODIAZADIPHOSPHETIDINES, VIII: THE PHOTOCHEMICAL CHLORINATION OF 2,2,2,4,4,4‐HEXAFLUORO‐1,3‐DIMETHYL‐1,3,2Λ5,4Λ5‐DIAZADIPHOSPHETID# INE
Authors: MEINDL W. , UTVARY K.
Published: April 2016

Abhängig vom stöchi metrischen Verhältnis der Reaktanden entsteht bei der photochemischen Chlorieru der Titelverbindung (I) das mono‐ (IIa) oder dichlorierte Produkt (IIb).
ChemInform Abstract: FLUORODIAZADIPHOSPHETIDINES, VII: REACTION OF 2,2,2,4,4,4‐HEXAFLUORO‐1,3‐DIMETHYL‐1,3,2Λ5,4Λ5‐DIAZADIPHOSPHETID# INE WITH MONO‐ AND BIS‐SILYLATED N,N′‐DIMETHYLUREA
Authors: UTVARY K. , KUBJACEK M.
Published: April 2016

Die 1:1:1‐molare Umsetzung der Titelverbindung (I) mit den silylierten Harnstoffen (IIa) und (IIb) führt zu einem kristallinen Produkt, das NM und IR‐spektroskopisch als Cuban‐ähnliche P‐N‐Verbindung (III) mit zwei Dimeth harnstoff‐Brücken identifiziert wird.
ChemInform Abstract: CHEMISTRY OF POLYFUNCTIONAL LIGANDS. XLVII. SELECTIVE CLEAVAGE OF ARSENIC‐PHENYL BONDS WITH HYDROBROMIC ACID IN NONAQUEOUS SYSTEMS
Authors: ELLERMANN J. , SCHOESSNER H.
Published: April 2016

Mono‐A, diund tritertiäre Arsine (I), (III) und (V) reagieren mit verflüssigtem Bromwasserstoff im Einschlußrohr unter selektiver Spaltung der Arsen‐phenyl‐bindungen zu entsprechenden mono‐, di‐ und tritertiären Alkylbromarsinen (II), (IV) und (VI).
ChemInform Abstract: REACTIONS OF MALONAMIDE WITH ANTIMONY(V) CHLORIDE
Authors: DIETRICH W. , LATSCHA H. P.
Published: April 2016

Malonsäurediamid (I) reagiert mit Sb‐pentachlorid zu dem 1:2‐Addukt (ll).
ChemInform Abstract: NEW REAGENTS. PART 12. ACIDIFICATION OF CARBON‐HYDROGEN BONDS BY HEAVY METAL ORGANOMETALLIC GROUPS
Authors: KAUFFMANN T. , ALTEPETER B. , ECHSLER K. J. , ENNEN J. , HAMSEN A. , JOUSSEN R.
Published: April 2016

Die mit Schwermetallgruppen substituierten Methylen gruppen in (I) werden glatt mit Lithiumdicyclohexylamid lithiiert, wie aufgrund von Deuterierungsreaktionen bestätigt werden kann.
ChemInform Abstract: REACTION OF TETRACARBONYLFERRATE WITH ACTIVATED VINYL HALIDES TO GIVE (1‐3‐η‐ACRYLOYL)TRICARBONYLFERRATES AND ALKENYLTETRACARBONYLFERRATES
Authors: MITSUDO T. , WATANABE H. , WATANABE Y. , NITANI N. , TAKEGAMI Y.
Published: April 2016

In Abhängigkeit von den Ausgangshalogeniden liefern diese aktivierten Vinylhalogenide (I) mit einer Suspension von (II) in THF die l‐3‐η‐Acryloylderivate (III) und/oder Alkenylferrate (IV).
ChemInform Abstract: STUDIES IN MOESSBAUER SPECTROSCOPY. PART 12. CHARACTERIZATION OF COMPLEXES CONTAINING IRON‐SILICON BONDS
Authors: PARISH R. V. , RILEY B. F.
Published: April 2016

Die Reaktion von Fe(0)‐ und Fe(II)‐Komplexen tertiärer Phosphine mit Silanen wurde untersucht und führte nur bei den Komplexen (I) und (III) des zweizähnigen Bis‐[diphenylphosphino]‐ethans zu Silylderivaten.
ChemInform Abstract: SYNTHESIS AND REACTIONS OF η5‐C5H5FE(CO)2 (HCCH)+ BF4‐ COMPLEXES
Authors: SAMUELS S.‐B. , BERRYHILL S. R. , ROSENBLUM M.
Published: April 2016

Der Dicarbonylcyclopentadienyleisen‐isobutylen‐Komplex (I) reagiert mit den Acetyle‐ nen (II) unter Austausch des Isobutylenliganden.