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Koroch, Adolfina R.; Juliani, H. Rodolfo; Trippi, Victorio S.

doi:10.1023/a:1006396531647

Cited by 50 publications

(62 citation statements)

References 11 publications

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“…In the micropropagation of Lippia junelliana, an increase in the number of shoots was observed with an increase in BA concentration. The best results were achieved by combining BA (4.4 µM) and IBA (0.04 µM) [12], whereas other researchers reported the highest number of shoots per explant of Lippia graveolens from the medium with BAP only. The best results were obtained in the medium containing 2 mg dm -3 BA, less shoots and roots were formed when there were lower concentrations of BA or BA in combination with auxin in the medium [13].…”

Section: Resultsmentioning

confidence: 82%

“…Urrea et al 2009 [7] also used the shoot tips and nodal segments of L dulcis for micropropagation and callus formation. This kind of explant was offered as the best explant for in vitro proliferation and reported by Boustani et al [11], Juliani et al [12], and Castellanos-Hernandez et al [13]. As it was noted by Servin et al [14], the nodal explants on the half MS medium with no growth regulator has been the best in forming sprouts and roots from buds.…”

Section: Resultsmentioning

confidence: 84%

“…Much research on the Verbenaceae family reports on the root development in plants of that family to be very easy, however, some report observed the highest rooting percentage on the MS free medium. Moreover, a treatment without growth regulators produces a large and vigorous root system [12].…”

Section: Resultsmentioning

confidence: 99%

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In vitro clonal propagation and efficient acclimatization with use of hydrogel of intensively sweet medicinal plant Lippia dulcis Trev.

Tomaszewska-Sowa

2020

Herba Polonica

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Summary Introduction: The leaves of Lippia dulcis contain high amounts of hernandulcin. It is one thousand fold sweeter than sucrose, however, it hardly contains any calories. Objective: The aim of this research was to optimalisation of micropropagation and acclimatization of L dulcis Methods: The nodal explants were inoculated on phytohormone-free MS medium. After 6 weeks the explants were inoculated onto the MS medium with different plant growth regulators. Well-developed rooted plantlets were adapted to ex vitro conditions using hydrogel. Results: On the medium with BAP and NAA the highest number of shoots were produced. The higest average shoot length, number of the leaves and the leaf area were recorded on the medium with GA3. Adding IBA increased the number of roots. The addition of hydrogel enhanced the acclimatization efficiency. Conclusions: There was observed a positive, stimulating influence of growth regulators on mass propagation and increase in the number of leaves and the leaf area and influence of hydrogel on the development of plantlets during acclimatization.

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Section: Resultsmentioning

confidence: 82%

Section: Resultsmentioning

confidence: 84%

See 1 more Smart Citation

In vitro clonal propagation and efficient acclimatization with use of hydrogel of intensively sweet medicinal plant Lippia dulcis Trev.

Tomaszewska-Sowa

2020

Herba Polonica

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“…In addition, by virtue of the particle tracking velocimetric (PTV) technique, Wang and co-workers 28−30 recently observed within the transient period some macroscopic motions either at the sample/wall interfaces (i.e., wall slip) or in the sample interior (i.e., internal yielding) during step shears based on entangled polymer melts 25 and solutions. 26 They ascribed the observed macroscopic failure to be a result of the structural breakup of the entanglement network and argued that to be the reason for the widely observed strain softening. 13,29,30 As to the sample preference for the stress relaxation measurements, both the entangled polymer melts and the polymer solutions are available, while the use of melts for high shear rates/deformation measurements is readily limited by flow instabilities such as the edge fracture.…”

Section: Introductionmentioning

confidence: 99%

Understanding of Transient Rheology in Step Shear and Its Implication To Explore Nonlinear Relaxation Dynamics of Interphase in Compatible Polymer Multi-microlayered Systems

Zhang

Lamnawar

Maazouz

2018

Ind. Eng. Chem. Res.

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In the industry of polymer coextrusion processing, efforts are being made toward a better control of multilayer flow stability that is governed by the interface/interphase between neighboring layers, the understanding of which is considerably inadequate. This study aims to explore the relaxation dynamics of polymer chains located in the interphase between two compatible polymer melts based on transient rheology in step shear experiments, an area that is often overlooked without justification. First, transient rheology was investigated based on pure polymers of poly(methyl methacrylate) (PMMA) and poly(vinylidene fluoride) (PVDF) melts, focusing on a feature of abrupt stress decline observed in the transient period after a large step shear. This feature is considered to be the phenomenological onset of rheological nonlinearity (e.g., stress damping) commonly observed in the long-time window of a relaxation for an entangled polymer. From the molecular viewpoint, the nonlinearity onset is a result of polymer chain disentanglement under a large flow as interpreted based on a refined version of the Doi− Edwards tube model and Wang's force imbalance theory, etc. A decreased entanglement number of polymer chains, either by decreasing molar mass in the melts or by reducing polymer concentration in solutions, was demonstrated to accelerate the onset of the rheological nonlinearity. In particular, a noticeable stress break-off in the transient period can be observed upon large deformations in the solutions due to their very weak entanglements. Second, large step shears were given to PMMA/PVDF bilayer-structured melts and a new model has been developed to determine the relaxation behavior of the interphase triggered between the layered polymers. Similar to the solutions, an abrupt stress decline was observed in the transient period for the interphase upon a large step deformation, indicating an analogous entanglement weakness of the interphase to the solution. Hence, a close correlation can be established between the interphase and the pure melts and solutions based on their transient rheology and the concept that the polymer chain entanglements can be weakened either by solvent dilution or by blending with dissimilar chains.

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“…Verificouse que o AE executa poucas ações de orientação sanitária, seja no âmbito individual ou coletivo, o que deveria ser, de acordo com as diretrizes do programa, uma de suas principais funções. (13)(14) . Além disso, percebem que alguns enfermeiros não têm preparo adequado para coordenar o trabalho em equipe.…”

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A prática do auxiliar de enfermagem do programa saúde da família

Shimizu

Dytz

Lima

et al. 2004

Rev. Latino-Am. Enfermagem

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This study aims to evaluate the practice of nursing auxiliaries in the Family Health Program, identifying their daily activities, as well as factors that facilitate or hinder their work. A qualitative approach was chosen, using the focal group technique, with the participation of 34 nursing auxiliaries from the Federal District, Brazil. It was found that the nursing auxiliaries carry out a variety of activities, both of individual and collective nature, heavily influenced by the clinical model and with different degrees of complexity, such as: family registration, brief clinical evaluation, group activities, technical procedures, home visits, sanitary and epidemiological vigilance in day care centers. The participants related that they found it easy to bond with the clientele, but complained of the shortage of continuing education courses and imprecision as to their true assignments and lack of local coordination. The authors conclude that the program must reassess the role of this professional, reemphasizing his educational function in the community.

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Cited by 50 publications

References 11 publications

In vitro clonal propagation and efficient acclimatization with use of hydrogel of intensively sweet medicinal plant Lippia dulcis Trev.

In vitro clonal propagation and efficient acclimatization with use of hydrogel of intensively sweet medicinal plant Lippia dulcis Trev.

Understanding of Transient Rheology in Step Shear and Its Implication To Explore Nonlinear Relaxation Dynamics of Interphase in Compatible Polymer Multi-microlayered Systems

A prática do auxiliar de enfermagem do programa saúde da família

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