523 research outputs found
Índice de área foliar, fenologia e rendimento de grãos de soja em épocas de semeadura em Passo Fundo/RS na safra 2013/14.
No full textOrientador: Mércio Luiz Strieder
Redescription of adults of Simulium jeteri (Py-Daniel, Darwich, Mardini, Strieder & Coscarón, 2005) (Diptera: Simuliidae)
No full textDo Nascimento, Jeane M. C., Hamada, Neusa, Pepinelli, Mateus, Mardini, Lúcia B. L. F. (2019): Redescription of adults of Simulium jeteri (Py-Daniel, Darwich, Mardini, Strieder & Coscarón, 2005) (Diptera: Simuliidae). Zootaxa 4563 (2): 249-266, DOI: 10.11646/zootaxa.4563.2.
FIGURE 8 in Redescription of adults of Simulium jeteri (Py-Daniel, Darwich, Mardini, Strieder & Coscarón, 2005) (Diptera: Simuliidae)
No full textFIGURE 8. Simulium jeteri (Diptera: Simuliidae) female. (A) Base of wing. (B) Foreleg. (C) Middle leg. (D) Hind leg. (E) Basitarsus and tarsus, showing calcipala and pedisulcus. (F) Tarsal claw.Published as part of Do Nascimento, Jeane M. C., Hamada, Neusa, Pepinelli, Mateus & Mardini, Lúcia B. L. F., 2019, Redescription of adults of Simulium jeteri (Py-Daniel, Darwich, Mardini, Strieder & Coscarón, 2005) (Diptera: Simuliidae), pp. 249-266 in Zootaxa 4563 (2) on page 258, DOI: 10.11646/zootaxa.4563.2.2, http://zenodo.org/record/260117
FIGURE 15 in Redescription of adults of Simulium jeteri (Py-Daniel, Darwich, Mardini, Strieder & Coscarón, 2005) (Diptera: Simuliidae)
No full textFIGURE 15. Simulium jeteri and Simulium itaunense (Diptera: Simuliidae) male ventral plates. (A–C) Simulium jeteri; (D–F) Simulium itaunense. (A, D) Ventral view. (B, E) Lateral view. (C, F) Ventral view with distal margin tilted dorsally (arrow indicates ventral keel).Published as part of Do Nascimento, Jeane M. C., Hamada, Neusa, Pepinelli, Mateus & Mardini, Lúcia B. L. F., 2019, Redescription of adults of Simulium jeteri (Py-Daniel, Darwich, Mardini, Strieder & Coscarón, 2005) (Diptera: Simuliidae), pp. 249-266 in Zootaxa 4563 (2) on page 265, DOI: 10.11646/zootaxa.4563.2.2, http://zenodo.org/record/260117
FIGURE 14 in Redescription of adults of Simulium jeteri (Py-Daniel, Darwich, Mardini, Strieder & Coscarón, 2005) (Diptera: Simuliidae)
No full textFIGURE 14. Simulium jeteri (Diptera: Simuliidae) larva. (A, B) Head, ventral view, showing variation in pigmentation pattern. (C) Head and thorax, lateral view (Bar = 0.5 mm).Published as part of Do Nascimento, Jeane M. C., Hamada, Neusa, Pepinelli, Mateus & Mardini, Lúcia B. L. F., 2019, Redescription of adults of Simulium jeteri (Py-Daniel, Darwich, Mardini, Strieder & Coscarón, 2005) (Diptera: Simuliidae), pp. 249-266 in Zootaxa 4563 (2) on page 264, DOI: 10.11646/zootaxa.4563.2.2, http://zenodo.org/record/260117
FIGURE 5 in Redescription of adults of Simulium jeteri (Py-Daniel, Darwich, Mardini, Strieder & Coscarón, 2005) (Diptera: Simuliidae)
No full textFIGURE 5. Simulium jeteri (Diptera: Simuliidae) male. (A, B) Terminalia in situ. (A) Ventral view. (B) Posterior view. (C) Ventral plate, dorsal view (arrow indicates oval invaginated region representing base of median projection). (D) Gonocoxite and gonostylus, ventral view. (E) Paramere and aedeagal membrane. (F) Median sclerite.Published as part of Do Nascimento, Jeane M. C., Hamada, Neusa, Pepinelli, Mateus & Mardini, Lúcia B. L. F., 2019, Redescription of adults of Simulium jeteri (Py-Daniel, Darwich, Mardini, Strieder & Coscarón, 2005) (Diptera: Simuliidae), pp. 249-266 in Zootaxa 4563 (2) on page 255, DOI: 10.11646/zootaxa.4563.2.2, http://zenodo.org/record/260117
Helium burning and neutron sources in the stars
No full textHelium burning represents an important stage of stellar evolution as it contributes to the synthesis of key elements such as carbon, through the triple-α process, and oxygen, through the 12C(α,γ)16O reaction. It is the ratio of carbon to oxygen at the end of the helium burning stage that governs the following phases of stellar evolution leading to different scenarios depending on the initial stellar mass. In addition, helium burning in Asymptotic Giant Branch stars, provides the two main sources of neutrons, namely the 13C(α,n)16O and the 22Ne(α,n)25Mg, for the synthesis of about half of all elements heavier than iron through the s-process. Given the importance of these reactions, much experimental work has been devoted to the study of their reaction rates over the last few decades. However, large uncertainties still remain at the energies of astrophysical interest which greatly limit the accuracy of stellar models predictions. Here, we review the current status on the latest experimental efforts and show how measurements of these important reaction cross sections can be significantly improved at next-generation deep underground laboratories
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